{"id":14157,"date":"2026-04-01T05:33:45","date_gmt":"2026-04-01T05:33:45","guid":{"rendered":"https:\/\/tenessy.com\/?p=14157"},"modified":"2026-04-01T07:17:50","modified_gmt":"2026-04-01T07:17:50","slug":"application-advantages-of-polycarboxylate-superplasticizer-in-hydropower-station-dam-concrete","status":"publish","type":"post","link":"https:\/\/tenessy.com\/cs\/vyhody-pouziti-polykarboxylatoveho-superplastifikatoru-v-betonu-hrazi-vodnich-elektraren\/","title":{"rendered":"V\u00fdhody pou\u017eit\u00ed polykarboxyl\u00e1tov\u00e9ho superplastifik\u00e1toru v betonu hr\u00e1z\u00ed vodn\u00edch elektr\u00e1ren"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"14157\" class=\"elementor elementor-14157\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fdbc6e4 e-flex e-con-boxed e-con e-parent\" data-id=\"fdbc6e4\" data-element_type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-20af60d elementor-widget elementor-widget-image\" data-id=\"20af60d\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Hydropower-Station-1024x683.jpg\" class=\"attachment-large size-large wp-image-14162\" alt=\"Vodn\u00ed elektr\u00e1rny\" srcset=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Hydropower-Station-1024x683.jpg 1024w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Hydropower-Station-300x200.jpg 300w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Hydropower-Station-768x512.jpg 768w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Hydropower-Station-1536x1025.jpg 1536w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Hydropower-Station-18x12.jpg 18w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Hydropower-Station.jpg 1853w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b06d651 elementor-widget elementor-widget-heading\" data-id=\"b06d651\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">I. \u00davod<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5ae54ec elementor-widget elementor-widget-text-editor\" data-id=\"5ae54ec\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">Kvalita v\u00fdstavby vodn\u00edch elektr\u00e1ren jako kritick\u00e9 n\u00e1rodn\u00ed infrastruktury p\u0159\u00edmo ovliv\u0148uje bezpe\u010dnost projektu, jeho provozn\u00ed \u017eivotnost a n\u00e1vratnost investic. V z\u00e1kladn\u00edch konstrukc\u00edch, jako jsou p\u0159ehrady, elektr\u00e1rny a v\u00fdpust\u011b, je beton nejpou\u017e\u00edvan\u011bj\u0161\u00edm a nejobjemn\u011bj\u0161\u00edm stavebn\u00edm materi\u00e1lem. U velk\u00fdch vodn\u00edch elektr\u00e1ren dosahuje objem ulo\u017een\u00e9ho betonu \u010dasto milion\u016f nebo dokonce des\u00edtek milion\u016f metr\u016f krychlov\u00fdch. Takto masivn\u00ed betonov\u00e9 projekty kladou extr\u00e9mn\u011b vysok\u00e9 po\u017eadavky na zpracovatelnost, mechanick\u00e9 vlastnosti, trvanlivost a efektivitu v\u00fdstavby.<\/p><p class=\"ds-markdown-paragraph\">Tradi\u010dn\u00ed superplastifik\u00e1tory (jako jsou lignosulfon\u00e1ty a superplastifik\u00e1tory na b\u00e1zi naftalenu) maj\u00ed ur\u010dit\u00e1 omezen\u00ed, pokud jde o m\u00edru redukce vody, udr\u017een\u00ed sp\u00e1du a \u0161etrnost k \u017eivotn\u00edmu prost\u0159ed\u00ed, co\u017e zt\u011b\u017euje pln\u00e9 spln\u011bn\u00ed po\u017eadavk\u016f modern\u00edch projekt\u016f vodn\u00edch elektr\u00e1ren na vysoce v\u00fdkonn\u00fd beton.\u00a0<a href=\"https:\/\/tenessy.com\/products\/polycarboxylate-superplasticizer\/\"><strong>Polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor<\/strong><\/a>, jako\u017eto vysoce \u00fa\u010dinn\u00e1 p\u0159\u00edm\u011bs do betonu t\u0159et\u00ed generace, se d\u00edky sv\u00fdm jedine\u010dn\u00fdm technick\u00fdm v\u00fdhod\u00e1m postupn\u011b stala preferovanou p\u0159\u00edm\u011bs\u00ed pro beton hr\u00e1z\u00ed vodn\u00edch elektr\u00e1ren. Tento \u010dl\u00e1nek systematicky analyzuje v\u00fdhody pou\u017eit\u00ed polykarboxyl\u00e1tov\u00e9ho superplastifik\u00e1toru v betonu hr\u00e1z\u00ed vodn\u00edch elektr\u00e1ren z v\u00edce hledisek, v\u010detn\u011b technick\u00fdch princip\u016f, hlavn\u00edch v\u00fdhod a in\u017een\u00fdrsk\u00fdch postup\u016f.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bbece77 elementor-widget elementor-widget-heading\" data-id=\"bbece77\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">I. Mechanismus a technick\u00e9 vlastnosti polykarboxyl\u00e1tov\u00e9ho superplastifik\u00e1toru<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8fabc90 elementor-widget elementor-widget-heading\" data-id=\"8fabc90\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1.1 Jedine\u010dn\u00fd v\u00fdkon umo\u017en\u011bn\u00fd n\u00e1vrhem molekul\u00e1rn\u00ed struktury<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c7729ed elementor-widget elementor-widget-text-editor\" data-id=\"c7729ed\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">Polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor pat\u0159\u00ed do kategorie polymern\u00edch povrchov\u011b aktivn\u00edch l\u00e1tek s h\u0159ebenovitou molekul\u00e1rn\u00ed strukturou - hlavn\u00ed \u0159et\u011bzec obsahuje pol\u00e1rn\u00ed funk\u010dn\u00ed skupiny, jako jsou skupiny karboxylov\u00fdch kyselin a skupiny sulfonov\u00fdch kyselin, zat\u00edmco postrann\u00ed \u0159et\u011bzce jsou dlouh\u00e9 polyoxyethylenov\u00e9 \u0159et\u011bzce. D\u00edky t\u00e9to jedine\u010dn\u00e9 struktu\u0159e se jeho adsorp\u010dn\u00ed chov\u00e1n\u00ed na povrchu cementov\u00fdch \u010d\u00e1stic v\u00fdrazn\u011b li\u0161\u00ed od chov\u00e1n\u00ed tradi\u010dn\u00edch superplastifik\u00e1tor\u016f:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Sterick\u00fd p\u0159ek\u00e1\u017ekov\u00fd efekt:<\/strong>\u00a0Molekuly s dlouh\u00fdm postrann\u00edm \u0159et\u011bzcem vytv\u00e1\u0159ej\u00ed na povrchu \u010d\u00e1stic cementu trojrozm\u011brnou bari\u00e9ru, kter\u00e1 \u00fa\u010dinn\u011b zabra\u0148uje agregaci \u010d\u00e1stic a zaji\u0161\u0165uje jejich trvalej\u0161\u00ed disperzi.<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Synergick\u00e9 elektrostatick\u00e9 odpuzov\u00e1n\u00ed:<\/strong>\u00a0Anionov\u00e9 skupiny na hlavn\u00edm \u0159et\u011bzci zaji\u0161\u0165uj\u00ed elektrostatick\u00e9 odpuzov\u00e1n\u00ed a spole\u010dn\u011b se sterick\u00fdmi p\u0159ek\u00e1\u017ekami vytv\u00e1\u0159ej\u00ed dvoj\u00ed stabiliza\u010dn\u00ed mechanismus.<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Vysok\u00e1 \u00fa\u010dinnost p\u0159i n\u00edzk\u00e9m d\u00e1vkov\u00e1n\u00ed:<\/strong>\u00a0V porovn\u00e1n\u00ed s d\u00e1vkou 0,5%-1,0% tradi\u010dn\u00edch superplastifik\u00e1tor\u016f dosahuje polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor p\u0159i d\u00e1vce pouh\u00fdch 0,15%-0,3% m\u00edry redukce vody 25%-35%, p\u0159i\u010dem\u017e maxim\u00e1ln\u00ed m\u00edra redukce vody p\u0159esahuje 50%.<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8c61fe5 elementor-widget elementor-widget-heading\" data-id=\"8c61fe5\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1.2 Environment\u00e1ln\u00ed a bezpe\u010dnostn\u00ed charakteristiky<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-54b6540 elementor-widget elementor-widget-text-editor\" data-id=\"54b6540\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">Polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor\u00a0<strong>neobsahuje \u0161kodliv\u00e9 l\u00e1tky, jako je formaldehyd nebo naftalen.<\/strong>\u00a0b\u011bhem v\u00fdroby a pou\u017e\u00edv\u00e1n\u00ed, nem\u00e1 dr\u00e1\u017ediv\u00fd z\u00e1pach a je \u0161etrn\u00fd ke stavebn\u00edm pracovn\u00edk\u016fm a okoln\u00edmu prost\u0159ed\u00ed. Tato vlastnost je v souladu se sou\u010dasn\u00fdm pr\u016fmyslov\u00fdm sm\u011brem ekologick\u00e9 v\u00fdstavby a udr\u017eiteln\u00e9ho rozvoje, tak\u017ee je obzvl\u00e1\u0161t\u011b vhodn\u00e1 pro velk\u00e9 projekty vodn\u00edch elektr\u00e1ren s p\u0159\u00edsn\u00fdmi po\u017eadavky na ochranu \u017eivotn\u00edho prost\u0159ed\u00ed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9b2cd0b e-flex e-con-boxed e-con e-parent\" data-id=\"9b2cd0b\" data-element_type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-47b4288 elementor-widget elementor-widget-heading\" data-id=\"47b4288\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">II. Technick\u00e9 probl\u00e9my s betonem hr\u00e1z\u00ed vodn\u00edch elektr\u00e1ren<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1b10f69 elementor-widget elementor-widget-text-editor\" data-id=\"1b10f69\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>P\u0159ed hlubokou anal\u00fdzou aplika\u010dn\u00edch v\u00fdhod polykarboxyl\u00e1tov\u00e9ho superplastifik\u00e1toru je nutn\u00e9 pochopit zvl\u00e1\u0161tn\u00ed technick\u00e9 probl\u00e9my, kter\u00fdm \u010del\u00ed beton hr\u00e1z\u00ed vodn\u00edch elektr\u00e1ren:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7420998 elementor-widget elementor-widget-heading\" data-id=\"7420998\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2.1 \u0158\u00edzen\u00ed teploty a prevence vzniku trhlin v masivn\u00edm betonu<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c553277 elementor-widget elementor-widget-text-editor\" data-id=\"c553277\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>P\u0159ehrady vodn\u00edch elektr\u00e1ren jsou typick\u00e9 masivn\u00ed betonov\u00e9 konstrukce. B\u011bhem hydratace cementu se uvol\u0148uje velk\u00e9 mno\u017estv\u00ed tepla, co\u017e zp\u016fsobuje rychl\u00fd n\u00e1r\u016fst vnit\u0159n\u00ed teploty, zat\u00edmco povrch odv\u00e1d\u00ed teplo pomalu, \u010d\u00edm\u017e vznik\u00e1 teplotn\u00ed gradient. Kdy\u017e tepeln\u00e9 nap\u011bt\u00ed p\u0159ekro\u010d\u00ed pevnost betonu v tahu, vznikaj\u00ed tepeln\u00e9 trhliny. Trhliny ovliv\u0148uj\u00ed nejen vzhled konstrukce, ale mohou tak\u00e9 ohrozit nepropustnost hr\u00e1ze a jej\u00ed dlouhodobou bezpe\u010dnost.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a94d6f0 elementor-widget elementor-widget-heading\" data-id=\"a94d6f0\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2.2 Vysok\u00e9 po\u017eadavky na nepropustnost a odolnost<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9fbed51 elementor-widget elementor-widget-text-editor\" data-id=\"9fbed51\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>P\u0159ehrady jsou dlouhodob\u011b vystaveny tlaku vody, cykl\u016fm mrazu a t\u00e1n\u00ed, vym\u00edl\u00e1n\u00ed vodou a erozi prost\u0159ed\u00ed. Beton mus\u00ed m\u00edt vynikaj\u00edc\u00ed nepropustnost, mrazuvzdornost a odolnost proti chemick\u00e9 erozi, aby byl zaji\u0161t\u011bn bezpe\u010dn\u00fd provoz a projektovan\u00e1 \u017eivotnost vodn\u00ed elektr\u00e1rny.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad993b4 elementor-widget elementor-widget-heading\" data-id=\"ad993b4\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2.3 Slo\u017eit\u00e9 stavebn\u00ed podm\u00ednky<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13fbe35 elementor-widget elementor-widget-text-editor\" data-id=\"13fbe35\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Projekty vodn\u00edch elektr\u00e1ren se \u010dasto nach\u00e1zej\u00ed v hlubok\u00fdch hor\u00e1ch a sout\u011bsk\u00e1ch s nepohodlnou dopravou a prom\u011bnliv\u00fdm klimatem. Beton mus\u00ed p\u0159ekon\u00e1vat dlouh\u00e9 vzd\u00e1lenosti, odol\u00e1vat vysok\u00e9 intenzit\u011b ukl\u00e1d\u00e1n\u00ed a p\u0159izp\u016fsobovat se \u00fazk\u00fdm staveni\u0161t\u00edm. Mus\u00ed si zachovat vynikaj\u00edc\u00ed tekutost a udr\u017eet sp\u00e1d za podm\u00ednek vysok\u00e9ho sp\u00e1du a z\u00e1rove\u0148 se p\u0159izp\u016fsobit r\u016fzn\u00fdm zp\u016fsob\u016fm dod\u00e1vky, jako je \u010derp\u00e1n\u00ed a \u017elabov\u00e1n\u00ed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5d65b07 elementor-widget elementor-widget-heading\" data-id=\"5d65b07\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2.4 Konflikt mezi vysokou pevnost\u00ed a vysokou tekutost\u00ed<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-724b6d8 elementor-widget elementor-widget-text-editor\" data-id=\"724b6d8\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>N\u011bkter\u00e9 \u010d\u00e1sti hr\u00e1ze (nap\u0159. obloukov\u00e9 op\u011bry hr\u00e1ze a v\u00fdpustn\u00e9 plochy) maj\u00ed vysok\u00e9 po\u017eadavky na pevnost betonu. Vysoce kvalitn\u00ed beton v\u0161ak m\u00e1 obvykle vysokou viskozitu a \u0161patnou tekutost, co\u017e zp\u016fsobuje stavebn\u00ed pot\u00ed\u017ee. Vyv\u00e1\u017een\u00ed zlep\u0161en\u00ed pevnosti se zlep\u0161en\u00edm zpracovatelnosti je ji\u017e dlouho technickou v\u00fdzvou pro projekty vodn\u00edch elektr\u00e1ren.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2574a91 elementor-widget elementor-widget-heading\" data-id=\"2574a91\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">III. Hlavn\u00ed v\u00fdhody polykarboxyl\u00e1tov\u00e9ho superplastifik\u00e1toru v betonu hr\u00e1z\u00ed vodn\u00edch elektr\u00e1ren<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f8db171 elementor-widget elementor-widget-image\" data-id=\"f8db171\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Polycarboxylate-superplasticizers-1024x683.jpg\" class=\"attachment-large size-large wp-image-14163\" alt=\"\" srcset=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Polycarboxylate-superplasticizers-1024x683.jpg 1024w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Polycarboxylate-superplasticizers-300x200.jpg 300w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Polycarboxylate-superplasticizers-768x512.jpg 768w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Polycarboxylate-superplasticizers-1536x1024.jpg 1536w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Polycarboxylate-superplasticizers-2048x1365.jpg 2048w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/04\/Polycarboxylate-superplasticizers-18x12.jpg 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c25c99 elementor-widget elementor-widget-heading\" data-id=\"6c25c99\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3.1 Vynikaj\u00edc\u00ed redukce vody a zv\u00fd\u0161en\u00ed pevnosti<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9fd1a6b elementor-widget elementor-widget-text-editor\" data-id=\"9fd1a6b\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">Nejv\u011bt\u0161\u00ed technick\u00e1 v\u00fdhoda polykarboxyl\u00e1tov\u00e9ho superplastifik\u00e1toru spo\u010d\u00edv\u00e1 v jeho\u00a0<strong>vysok\u00e1 m\u00edra redukce vody<\/strong>. P\u0159i stejn\u00e9m pom\u011bru vody a cementu m\u016f\u017ee jeho m\u00edra redukce vody dos\u00e1hnout 25%-35%, co\u017e je v\u00fdrazn\u011b v\u00edce ne\u017e 15%-20% superplastifik\u00e1tor\u016f na b\u00e1zi naftalenu. To znamen\u00e1:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Sn\u00ed\u017een\u00ed spot\u0159eby vody:<\/strong>\u00a0P\u0159i stejn\u00e9m pom\u011bru vody a cementu lze v\u00fdrazn\u011b sn\u00ed\u017eit jednotkovou spot\u0159ebu vody, a t\u00edm sn\u00ed\u017eit spot\u0159ebu cementu a u\u0161et\u0159it n\u00e1klady.<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Zv\u00fd\u0161en\u00e1 s\u00edla:<\/strong>\u00a0P\u0159i zachov\u00e1n\u00ed stejn\u00e9 tekutosti lze v\u00fdrazn\u011b sn\u00ed\u017eit pom\u011br vody a cementu, \u010d\u00edm\u017e se podstatn\u011b zlep\u0161\u00ed \u010dasn\u00e1 i pozd\u011bj\u0161\u00ed pevnost betonu.<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Optimalizovan\u00fd n\u00e1vrh sm\u011bsi:<\/strong>\u00a0Poskytuje v\u011bt\u0161\u00ed flexibilitu pro formulaci vysoce v\u00fdkonn\u00e9ho betonu, co\u017e umo\u017e\u0148uje pou\u017eit\u00ed vysokopevnostn\u00edch beton\u016f, jako jsou C80 a C100, v projektech vodn\u00edch elektr\u00e1ren.<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><strong>Technick\u00e1 hodnota:<\/strong>\u00a0Sn\u00ed\u017een\u00ed spot\u0159eby cementu o 10 kg\/m3 p\u0159i objemu betonu jeden milion metr\u016f krychlov\u00fdch u\u0161et\u0159\u00ed des\u00edtky tis\u00edc tun cementu, co\u017e p\u0159in\u00e1\u0161\u00ed v\u00fdznamn\u00e9 ekonomick\u00e9 v\u00fdhody. Sou\u010dasn\u011b zlep\u0161en\u00ed pevnosti, kter\u00e9 p\u0159in\u00e1\u0161\u00ed vysok\u00e9 sn\u00ed\u017een\u00ed mno\u017estv\u00ed vody, poskytuje technickou podporu pro optimalizaci konstrukce p\u0159ehrady.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7965ad2 elementor-widget elementor-widget-heading\" data-id=\"7965ad2\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3.2 Vynikaj\u00edc\u00ed retence kalu, zaji\u0161t\u011bn\u00ed kontinuity v\u00fdstavby<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d4052c5 elementor-widget elementor-widget-text-editor\" data-id=\"d4052c5\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">Tradi\u010dn\u00ed superplastifik\u00e1tory (zejm\u00e9na na b\u00e1zi naftalenu) b\u011b\u017en\u011b trp\u00ed rychlou ztr\u00e1tou sp\u00e1du. Beton \u010dasto vy\u017eaduje dodate\u010dn\u00e9 p\u0159id\u00e1n\u00ed vody nebo \u00fapravu sm\u011bsi po p\u0159\u00edjezdu na staveni\u0161t\u011b, co\u017e ovliv\u0148uje efektivitu a kvalitu v\u00fdstavby.<\/p><p class=\"ds-markdown-paragraph\">Polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor, prost\u0159ednictv\u00edm\u00a0<strong>mo\u017enost navrhov\u00e1n\u00ed molekul\u00e1rn\u00ed struktury<\/strong>, dosahuje\u00a0<strong>v podstat\u011b \u017e\u00e1dn\u00e1 ztr\u00e1ta sp\u00e1du b\u011bhem 2-3 hodin<\/strong>. Mechanismus zahrnuje:<\/p><ul><li><p class=\"ds-markdown-paragraph\">Postupn\u00e1 hydrol\u00fdza postrann\u00edch polyoxyethylenov\u00fdch \u0159et\u011bzc\u016f v alkalick\u00e9m prost\u0159ed\u00ed, p\u0159i n\u00ed\u017e se pr\u016fb\u011b\u017en\u011b uvol\u0148uj\u00ed disperzn\u00ed \u00fa\u010dinky.<\/p><\/li><li><p class=\"ds-markdown-paragraph\">Synergick\u00e1 interakce mezi retarda\u010dn\u00edmi a disperga\u010dn\u00edmi slo\u017ekami, kter\u00e1 zpomaluje proces hydratace cementu.<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><strong>Technick\u00e1 hodnota:<\/strong>\u00a0Beton pro vodn\u00ed elektr\u00e1rny \u010dasto vy\u017eaduje p\u0159epravu na dlouh\u00e9 vzd\u00e1lenosti a del\u0161\u00ed \u010dekac\u00ed dobu p\u0159ed ulo\u017een\u00edm. V\u00fdborn\u00e9 udr\u017een\u00ed sp\u00e1du zaji\u0161\u0165uje, \u017ee si beton po p\u0159\u00edjezdu na m\u00edsto zachov\u00e1 dobrou zpracovatelnost, a zabra\u0148uje tak sn\u00ed\u017een\u00ed pevnosti a zhor\u0161en\u00ed trvanlivosti zp\u016fsoben\u00e9mu p\u0159id\u00e1n\u00edm vody na m\u00edst\u011b.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a0f305 elementor-widget elementor-widget-heading\" data-id=\"0a0f305\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3.3 \u00da\u010dinn\u00e9 sn\u00ed\u017een\u00ed hydrata\u010dn\u00edho tepla, kter\u00e9 p\u0159isp\u00edv\u00e1 k regulaci teploty a prevenci vzniku trhlin<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-73d15c6 elementor-widget elementor-widget-text-editor\" data-id=\"73d15c6\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">Tepeln\u00e9 trhliny v masivn\u00edm betonu jsou z\u00e1kladn\u00edm rizikem pro kvalitu projekt\u016f vodn\u00edch elektr\u00e1ren. Polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor p\u0159isp\u00edv\u00e1 k regulaci teploty a prevenci vzniku trhlin dv\u011bma zp\u016fsoby:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Sn\u00ed\u017een\u00ed spot\u0159eby cementu:<\/strong>\u00a0Vysok\u00e1 m\u00edra redukce vody umo\u017e\u0148uje sn\u00ed\u017eit spot\u0159ebu cementu o 10%-15% p\u0159i spln\u011bn\u00ed po\u017eadavk\u016f na pevnost. Sn\u00ed\u017een\u00e1 spot\u0159eba cementu p\u0159\u00edmo sni\u017euje celkov\u00e9 hydrata\u010dn\u00ed teplo na jednotku objemu betonu.<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Opo\u017ed\u011bn\u00fd vrchol hydratace:<\/strong>\u00a0D\u00edky n\u00e1vrhu molekul\u00e1rn\u00ed struktury m\u016f\u017ee polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor zahrnovat zpomalovac\u00ed funkce, \u010d\u00edm\u017e se k\u0159ivka uvol\u0148ov\u00e1n\u00ed hydrata\u010dn\u00edho tepla st\u00e1v\u00e1 m\u00edrn\u011bj\u0161\u00ed a sni\u017euje se rychlost n\u00e1r\u016fstu teploty a maxim\u00e1ln\u00ed teplota.<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><strong>Technick\u00e1 hodnota:<\/strong>\u00a0P\u0159i v\u00fdstavb\u011b mega vodn\u00edch elektr\u00e1ren, jako jsou Xiluodu a Baihetan, polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor synergicky spolupracoval s chladic\u00edmi trubkami, \u0159\u00edzen\u00fdm vytvrzov\u00e1n\u00edm a dal\u0161\u00edmi opat\u0159en\u00edmi, aby se \u00fasp\u011b\u0161n\u011b dos\u00e1hlo c\u00edl\u016f regulace teploty betonu p\u0159ehrad a \u00fa\u010dinn\u011b se zvl\u00e1dlo riziko vzniku trhlin.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad163f6 elementor-widget elementor-widget-heading\" data-id=\"ad163f6\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3.4 Zlep\u0161en\u00ed zpracovatelnosti betonu, p\u0159izp\u016fsoben\u00ed se slo\u017eit\u00fdm stavebn\u00edm podm\u00ednk\u00e1m<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-23085ca elementor-widget elementor-widget-text-editor\" data-id=\"23085ca\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">Betonov\u00e1n\u00ed vodn\u00edch elektr\u00e1ren zahrnuje r\u016fzn\u00e9 slo\u017eit\u00e9 podm\u00ednky, jako jsou vysok\u00e1 p\u0159ev\u00fd\u0161en\u00ed, velk\u00e9 vzd\u00e1lenosti a st\u00edsn\u011bn\u00e9 prostory, co\u017e klade vysok\u00e9 n\u00e1roky na zpracovatelnost betonu. Polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor prop\u016fj\u010duje betonu n\u00e1sleduj\u00edc\u00ed vynikaj\u00edc\u00ed vlastnosti:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Vysok\u00e1 tekutost:<\/strong>\u00a0Sp\u00e1d m\u016f\u017ee dos\u00e1hnout v\u00edce ne\u017e 220 mm, sp\u00e1d m\u016f\u017ee p\u0159es\u00e1hnout 600 mm, vhodn\u00e9 pro r\u016fzn\u00e9 zp\u016fsoby dod\u00e1vek, jako je \u010derp\u00e1n\u00ed a \u017elaby.<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>N\u00edzk\u00e1 viskozita:<\/strong>\u00a0D\u00edky molekul\u00e1rn\u00edmu designu se sni\u017euje viskozita suspenze, \u010d\u00edm\u017e se \u0159e\u0161\u00ed obt\u00ed\u017en\u00e1 konstrukce vysoce kvalitn\u00edho betonu, kter\u00fd je \"visk\u00f3zn\u00ed i t\u011b\u017ek\u00fd\".<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Proti segregaci:<\/strong>\u00a0Udr\u017euje dobrou homogenitu za podm\u00ednek vysok\u00e9 tekutosti a zabra\u0148uje segregaci a krv\u00e1cen\u00ed kameniva.<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><strong>Technick\u00e1 hodnota:<\/strong>\u00a0V konstruk\u010dn\u011b slo\u017eit\u00fdch oblastech, jako jsou obloukov\u00e9 a gravita\u010dn\u00ed p\u0159ehrady, dok\u00e1\u017ee beton s vysokou tekutost\u00ed zcela vyplnit rohy bedn\u011bn\u00ed a zajistit hustotu a kvalitu vzhledu betonu; ve st\u00edsn\u011bn\u00fdch prostorech, jako jsou \u00fazk\u00e9 galerie a komory, sni\u017euje n\u00edzk\u00e1 viskozita a dobr\u00fd \u010derpac\u00ed v\u00fdkon v\u00fdrazn\u011b obt\u00ed\u017enost stavby.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-940e9b3 elementor-widget elementor-widget-heading\" data-id=\"940e9b3\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3.5 Zv\u00fd\u0161en\u00e1 odolnost, prodlou\u017een\u00ed \u017eivotnosti projektu<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4da8f6b elementor-widget elementor-widget-text-editor\" data-id=\"4da8f6b\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">\u017divotnost p\u0159ehrad vodn\u00edch elektr\u00e1ren je obvykle 50 a\u017e 100 let, a proto je jejich trvanlivost velmi d\u016fle\u017eit\u00e1. Polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor zvy\u0161uje trvanlivost betonu prost\u0159ednictv\u00edm n\u00e1sleduj\u00edc\u00edch mechanism\u016f:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Sn\u00ed\u017een\u00fd pom\u011br vody a cementu:<\/strong>\u00a0Ni\u017e\u0161\u00ed pom\u011br vody a cementu sni\u017euje p\u00f3rovitost a zjem\u0148uje strukturu p\u00f3r\u016f ve ztvrdl\u00e9m betonu, \u010d\u00edm\u017e v\u00fdrazn\u011b zlep\u0161uje nepropustnost (stupe\u0148 nepropustnosti m\u016f\u017ee dos\u00e1hnout P12 nebo vy\u0161\u0161\u00ed).<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Sn\u00ed\u017een\u00e9 smr\u0161\u0165ov\u00e1n\u00ed:<\/strong>\u00a0Kombinovan\u00fd \u00fa\u010dinek sn\u00ed\u017een\u00e9 spot\u0159eby cementu a regulace hydrata\u010dn\u00edho tepla sni\u017euje smr\u0161\u0165ov\u00e1n\u00ed p\u0159i su\u0161en\u00ed a tepeln\u00e9 smr\u0161\u0165ov\u00e1n\u00ed, co\u017e sni\u017euje riziko vzniku trhlin.<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Zlep\u0161en\u00e1 mezif\u00e1zov\u00e1 p\u0159echodov\u00e1 z\u00f3na:<\/strong>\u00a0Disperzn\u00ed \u00fa\u010dinek umo\u017e\u0148uje \u00fapln\u011bj\u0161\u00ed hydrataci cementu, co\u017e vede k hust\u0161\u00ed p\u0159echodov\u00e9 z\u00f3n\u011b mezi kamenivem a pastou, zvy\u0161uje odolnost proti zmrazov\u00e1n\u00ed a rozmrazov\u00e1n\u00ed a odolnost proti chemick\u00e9 erozi.<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><strong>Technick\u00e1 hodnota:<\/strong>\u00a0U vodn\u00edch elektr\u00e1ren um\u00edst\u011bn\u00fdch v chladn\u00fdch oblastech je vynikaj\u00edc\u00ed odolnost proti zamrz\u00e1n\u00ed a rozmrazov\u00e1n\u00ed p\u0159\u00edmo spojena s bezpe\u010dn\u00fdm provozem hr\u00e1ze; u projekt\u016f s agresivn\u00edm prost\u0159ed\u00edm podzemn\u00edch vod je rozhoduj\u00edc\u00ed vysok\u00e1 nepropustnost a odolnost proti chemick\u00e9 erozi.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-83ea234 elementor-widget elementor-widget-heading\" data-id=\"83ea234\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">IV. Bezpe\u010dnostn\u00ed opat\u0159en\u00ed p\u0159i aplikaci polykarboxyl\u00e1tov\u00e9ho superplastifik\u00e1toru<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-508267e elementor-widget elementor-widget-text-editor\" data-id=\"508267e\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>P\u0159esto\u017ee polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor nab\u00edz\u00ed v\u00fdznamn\u00e9 v\u00fdhody, je t\u0159eba p\u0159i praktick\u00fdch aplikac\u00edch db\u00e1t na n\u00e1sleduj\u00edc\u00ed body, aby byla zaji\u0161t\u011bna pln\u00e1 \u00fa\u010dinnost:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ac7037 elementor-widget elementor-widget-heading\" data-id=\"8ac7037\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4.1 Kompatibilita s cementem<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3712386 elementor-widget elementor-widget-text-editor\" data-id=\"3712386\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Kompatibilita polykarboxyl\u00e1tov\u00e9ho superplastifik\u00e1toru se li\u0161\u00ed s r\u016fzn\u00fdmi cementy. Doporu\u010duje se prov\u00e1d\u011bt\u00a0<strong>testy kompatibility<\/strong>\u00a0p\u0159ed technickou aplikac\u00ed, aby se ur\u010dilo optim\u00e1ln\u00ed d\u00e1vkov\u00e1n\u00ed a \u00fa\u010dinky sm\u011bsi s retarda\u010dn\u00edmi \u010dinidly, \u010dinidly pro zadr\u017eov\u00e1n\u00ed vzduchu a dal\u0161\u00edmi slo\u017ekami.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f0ae9c0 elementor-widget elementor-widget-heading\" data-id=\"f0ae9c0\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4.2 Citlivost na spot\u0159ebu vody<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1eb0164 elementor-widget elementor-widget-text-editor\" data-id=\"1eb0164\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor je citliv\u00fd na spot\u0159ebu vody. V\u00fdkyvy ve spot\u0159eb\u011b vody v\u00fdznamn\u011b ovliv\u0148uj\u00ed rychlost redukce vody a sp\u00e1d. B\u011bhem v\u00fdstavby by m\u011bla b\u00fdt dodr\u017eov\u00e1na p\u0159\u00edsn\u00e1 kontrola d\u00e1vkov\u00e1n\u00ed a m\u011blo by se zabr\u00e1nit p\u0159id\u00e1v\u00e1n\u00ed vody na stavb\u011b.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bebc9e1 elementor-widget elementor-widget-heading\" data-id=\"bebc9e1\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4.3 Nem\u00edchejte se superplastifik\u00e1tory na b\u00e1zi naftalenu<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-afec9f6 elementor-widget elementor-widget-text-editor\" data-id=\"afec9f6\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor a superplastifik\u00e1tor na b\u00e1zi naftalenu\u00a0<strong>nesm\u00ed b\u00fdt sm\u00edch\u00e1ny<\/strong>. Sm\u011b\u0161ov\u00e1n\u00ed obou m\u016f\u017ee zp\u016fsobit v\u00e1\u017en\u00e9 sn\u00ed\u017een\u00ed v\u00fdkonu nebo dokonce \u00fapln\u00e9 selh\u00e1n\u00ed. P\u0159i zm\u011bn\u011b typu p\u0159\u00edm\u011bsi je nutn\u00e9 d\u016fkladn\u011b vy\u010distit m\u00edchac\u00ed za\u0159\u00edzen\u00ed a p\u0159epravn\u00ed cisterny.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cc1adea elementor-widget elementor-widget-heading\" data-id=\"cc1adea\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4.4 Kontrola d\u00e1vkov\u00e1n\u00ed<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f5b821 elementor-widget elementor-widget-text-editor\" data-id=\"5f5b821\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>D\u00e1vka polykarboxyl\u00e1tov\u00e9ho superplastifik\u00e1toru je obvykle 0,15%-0,3% obsahu cementov\u00e9ho materi\u00e1lu. Nedostate\u010dn\u00e9 d\u00e1vkov\u00e1n\u00ed m\u00e1 za n\u00e1sledek nevyhovuj\u00edc\u00ed vlastnosti, zat\u00edmco nadm\u011brn\u00e9 d\u00e1vkov\u00e1n\u00ed m\u016f\u017ee zp\u016fsobit nadm\u011brnou retardaci nebo krv\u00e1cen\u00ed. Skute\u010dn\u00e9 d\u00e1vkov\u00e1n\u00ed by m\u011blo b\u00fdt stanoveno zkou\u0161kami a b\u011bhem v\u00fdstavby p\u0159\u00edsn\u011b kontrolov\u00e1no.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a3f4944 elementor-widget elementor-widget-heading\" data-id=\"a3f4944\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">V. Z\u00e1v\u011br<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8fce879 elementor-widget elementor-widget-text-editor\" data-id=\"8fce879\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">Polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor s vysokou m\u00edrou redukce vody, vynikaj\u00edc\u00edm udr\u017een\u00edm sp\u00e1du, n\u00edzk\u00fdm hydrata\u010dn\u00edm teplem, dobr\u00fdm zlep\u0161en\u00edm zpracovatelnosti a zv\u00fd\u0161en\u00edm trvanlivosti se stal nepostradateln\u00fdm kl\u00ed\u010dov\u00fdm funk\u010dn\u00edm materi\u00e1lem pro beton hr\u00e1z\u00ed vodn\u00edch elektr\u00e1ren.\u00a0<\/p><p class=\"ds-markdown-paragraph\">S rozvojem hydroenergetick\u00fdch projekt\u016f sm\u011brem k vy\u0161\u0161\u00edm p\u0159ehrad\u00e1m, v\u011bt\u0161\u00edm m\u011b\u0159\u00edtk\u016fm a slo\u017eit\u011bj\u0161\u00edm geologick\u00fdm podm\u00ednk\u00e1m se budou po\u017eadavky na v\u00fdkonnost betonu nad\u00e1le zvy\u0161ovat. Budouc\u00ed sm\u011bry v\u00fdvoje technologie polykarboxyl\u00e1tov\u00fdch superplastifik\u00e1tor\u016f se zam\u011b\u0159\u00ed na:<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>P\u0159esn\u00fd n\u00e1vrh molekul\u00e1rn\u00ed struktury:<\/strong>\u00a0V\u00fdvoj produkt\u016f na m\u00edru pro spln\u011bn\u00ed r\u016fzn\u00fdch technick\u00fdch po\u017eadavk\u016f<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Zelen\u00e9 a n\u00edzkouhl\u00edkov\u00e9:<\/strong>\u00a0Dal\u0161\u00ed sn\u00ed\u017een\u00ed spot\u0159eby energie p\u0159i v\u00fdrob\u011b a zlep\u0161en\u00ed <a href=\"https:\/\/tenessy.com\/hpmc-supplier\/sustainability\/\">\u0161etrnost k \u017eivotn\u00edmu prost\u0159ed\u00ed<\/a><\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\">Jako profesion\u00e1ln\u00ed dodavatel stavebn\u00edch p\u0159\u00edsad,\u00a0<a href=\"https:\/\/tenessy.com\/hpmc-supplier\/\"><strong>TENESSY<\/strong><\/a>\u00a0bude i nad\u00e1le d\u016fkladn\u011b rozv\u00edjet technologii polykarboxyl\u00e1tov\u00fdch superplastifik\u00e1tor\u016f, poskytovat vysoce v\u00fdkonn\u00e9 a vysoce stabiln\u00ed produkty a <a href=\"https:\/\/tenessy.com\/contact\/\">technick\u00e1 podpora<\/a> pro projekty vodn\u00edch elektr\u00e1ren a \u0161ir\u0161\u00ed \u0161k\u00e1lu konkr\u00e9tn\u00edch aplikac\u00ed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Polykarboxyl\u00e1tov\u00fd superplastifik\u00e1tor, jako vysoce \u00fa\u010dinn\u00e1 p\u0159\u00edm\u011bs do betonu t\u0159et\u00ed generace, se postupn\u011b stal preferovanou p\u0159\u00edm\u011bs\u00ed pro beton hr\u00e1z\u00ed vodn\u00edch elektr\u00e1ren d\u00edky sv\u00fdm jedine\u010dn\u00fdm technick\u00fdm v\u00fdhod\u00e1m.<\/p>","protected":false},"author":1,"featured_media":14162,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[35],"tags":[],"class_list":["post-14157","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - 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