{"id":14788,"date":"2026-06-17T06:26:05","date_gmt":"2026-06-17T06:26:05","guid":{"rendered":"https:\/\/tenessy.com\/?p=14788"},"modified":"2026-06-17T06:26:06","modified_gmt":"2026-06-17T06:26:06","slug":"choose-specialized-hpmc-for-gypsum-products-retarding-water-loss-to-enhance-workability","status":"publish","type":"post","link":"https:\/\/tenessy.com\/fi\/valitse-kipsituotteisiin-tarkoitettu-erikoistunut-hpmc-joka-hidastaa-veden-haihtumista-ja-parantaa-tyostettavyytta\/","title":{"rendered":"Valitse kipsituotteisiin tarkoitettu erikoistunut HPMC: hidastaa veden haihtumista ja parantaa ty\u00f6stett\u00e4vyytt\u00e4"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"14788\" class=\"elementor elementor-14788\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fdbc6e4 e-con-full e-flex 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<div class=\"elementor-element elementor-element-105ebe2 elementor-widget elementor-widget-image\" data-id=\"105ebe2\" 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=\"533\" src=\"https:\/\/tenessy.com\/wp-content\/uploads\/2025\/04\/Gypsum.webp\" class=\"attachment-large size-large wp-image-11500\" alt=\"Kipsi\" srcset=\"https:\/\/tenessy.com\/wp-content\/uploads\/2025\/04\/Gypsum.webp 800w, https:\/\/tenessy.com\/wp-content\/uploads\/2025\/04\/Gypsum-300x200.webp 300w, https:\/\/tenessy.com\/wp-content\/uploads\/2025\/04\/Gypsum-768x512.webp 768w, https:\/\/tenessy.com\/wp-content\/uploads\/2025\/04\/Gypsum-18x12.webp 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-e0d9856 elementor-widget elementor-widget-heading\" data-id=\"e0d9856\" 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\">Johdanto<\/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\"><span class=\"\">Osoitteessa <a href=\"https:\/\/tenessy.com\/applications\/drymix-mortar\/\">kuivasekoituslaasti<\/a> kipsipohjaisten rakennusmateriaalien j\u00e4rjestelm\u00e4t \u2013 kuten rappauskipsi, saumausaineet ja <a href=\"https:\/\/tenessy.com\/applications\/application-self-leveling\/\">itsetasoittuvat kipsiseokset<\/a>-<a href=\"https:\/\/tenessy.com\/products\/hpmc-hydroxypropyl-methyl-cellulose\/\">hydroksipropyylimetyyliselluloosa (HPMC)<\/a> sen osuus on vain muutama tuhannesosa kuivaseoksen kokonaispainosta (tyypillisesti 0,1%\u20130,5%). Silti sill\u00e4 on ratkaiseva merkitys materiaalin suorituskyvyn kannalta. Koska nykyaikaisessa rakentamisessa vaaditaan yh\u00e4 parempaa tehokkuutta ja laatua,\u00a0<\/span><strong><span class=\"\">Kaikki HPMC-laadut eiv\u00e4t sovellu kipsij\u00e4rjestelmiin. Vain erityisesti muokattu, nimenomaan kipsik\u00e4ytt\u00f6\u00f6n tarkoitettu HPMC pystyy tehokkaasti ratkaisemaan kipsituotteiden kolme suurinta ongelmaa: \u201dliian nopea kuivuminen\u201d, \u201dhuono levitett\u00e4vyys\u201d ja \u201dhalkeilualttius\u201d.<\/span><\/strong><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">T\u00e4ss\u00e4 artikkelissa analysoidaan perusteellisesti, virtausdynamiikan ja vesi-rakennekemian n\u00e4k\u00f6kulmista, kuinka erikoistunut HPMC parantaa kipsituotteiden ty\u00f6stett\u00e4vyytt\u00e4 seuraavien tekij\u00f6iden kautta:\u00a0<\/span><strong><span class=\"\">hidastaa veden haihtumista<\/span><\/strong><span class=\"\">\u00a0ja\u00a0<\/span><strong><span class=\"\">reologian optimointi<\/span><\/strong><span class=\"\">.<\/span><\/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. Kipsin hydraation luonne ja siihen liittyv\u00e4 sis\u00e4inen ristiriita: miksi erityinen lis\u00e4aine on v\u00e4ltt\u00e4m\u00e4t\u00f6n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7df1793 elementor-widget elementor-widget-image\" data-id=\"7df1793\" 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\/03\/HPMC-Hydroxypropyl-Methyl-Cellulose-1024x683.webp\" class=\"attachment-large size-large wp-image-14127\" alt=\"HPMC-hydroksipropyylimetyyliselluloosa\" srcset=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/03\/HPMC-Hydroxypropyl-Methyl-Cellulose-1024x683.webp 1024w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/03\/HPMC-Hydroxypropyl-Methyl-Cellulose-300x200.webp 300w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/03\/HPMC-Hydroxypropyl-Methyl-Cellulose-768x512.webp 768w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/03\/HPMC-Hydroxypropyl-Methyl-Cellulose-1536x1024.webp 1536w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/03\/HPMC-Hydroxypropyl-Methyl-Cellulose-2048x1365.webp 2048w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/03\/HPMC-Hydroxypropyl-Methyl-Cellulose-18x12.webp 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-740e220 elementor-widget elementor-widget-text-editor\" data-id=\"740e220\" 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\"><span class=\"\">Jotta voidaan ymm\u00e4rt\u00e4\u00e4 erikoistuneen HPMC:n roolia, on ensin selvitett\u00e4v\u00e4 kipsimateriaalien ominaispiirteet.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Rakennuskipsi (hemihydraattikipsi, CaSO\u2084\u00b70,5H\u2082O) k\u00e4y l\u00e4pi hydraatioreaktion joutuessaan kosketuksiin veden kanssa, jolloin siit\u00e4 muodostuu dihydraattikipsi (CaSO\u2084\u00b72H\u2082O) ja syntyy kiteinen verkosto \u2013 t\u00e4m\u00e4 on sen mekaanisen lujuuden l\u00e4hde. T\u00e4m\u00e4 prosessi aiheuttaa kuitenkin rakentamisen kannalta luontaisen ristiriidan:<\/span><\/p><ol start=\"1\"><li><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Nopean nesteytymisen ja veden tarpeen v\u00e4linen ristiriita<\/span><\/strong><span class=\"\">: Hemihydraattikipsin hydraatiolle tarvittava teoreettinen vesim\u00e4\u00e4r\u00e4 on vain 18,6%, mutta k\u00e4yt\u00e4nn\u00f6ss\u00e4 riitt\u00e4v\u00e4n juoksevuuden saavuttamiseksi lis\u00e4tt\u00e4v\u00e4n veden m\u00e4\u00e4r\u00e4 nousee usein 60%\u201380%:iin. Jos ylim\u00e4\u00e4r\u00e4ist\u00e4 vett\u00e4 ei saada tehokkaasti \u201dsidottua\u201d, se haihtuu nopeasti alustan imeytymisen tai ymp\u00e4rist\u00f6n haihtumisen seurauksena, mik\u00e4 johtaa ep\u00e4t\u00e4ydelliseen hydraatioon ja pinnan jauheistumiseen.<\/span><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Lyhyt aukioloaika<\/span><\/strong><span class=\"\">: Tavallinen kipsimassa kovettuu ja j\u00e4hmettyy eritt\u00e4in nopeasti (muutamasta minuutista hieman yli kymmeneen minuuttiin), mink\u00e4 vuoksi levitt\u00e4miseen, tasoittamiseen ja viimeistelyyn j\u00e4\u00e4 eritt\u00e4in v\u00e4h\u00e4n aikaa.<\/span><\/p><\/li><\/ol><p class=\"ds-markdown-paragraph\"><span class=\"\">Tavalliset sakeutusaineet \u2013 kuten perinteiset t\u00e4rkkelykset tai tavallinen selluloosa \u2013 saattavat lis\u00e4t\u00e4 viskositeettia, mutta eiv\u00e4t pysty s\u00e4\u00e4telem\u00e4\u00e4n vesimolekyylien ja kipsikiteiden v\u00e4list\u00e4 vuorovaikutusta.\u00a0<\/span><strong><span class=\"\">Erikoistuneen HPMC:n k\u00e4ytt\u00f6\u00f6noton tarkoituksena on nimenomaan luoda tasapaino t\u00e4m\u00e4n ristiriidan sis\u00e4ll\u00e4: riitt\u00e4v\u00e4n vesim\u00e4\u00e4r\u00e4n s\u00e4ilytt\u00e4minen levitysvaiheessa ja samalla oikea-aikaisen ja t\u00e4ydellisen hydraation varmistaminen.<\/span><\/strong><\/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-0c8fd91 elementor-widget elementor-widget-heading\" data-id=\"0c8fd91\" 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.  Erikoistuneen HPMC:n mikromekanismi: Enemm\u00e4n kuin vedenpid\u00e4tyskyky \u2013 \u201dvesirakenteen\u201d s\u00e4\u00e4tely<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-beb8d88 elementor-widget elementor-widget-heading\" data-id=\"beb8d88\" 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.  Vety sidokset: \u201dVapaan veden\u201d poistumisen hidastaminen<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9d3e02e elementor-widget elementor-widget-text-editor\" data-id=\"9d3e02e\" 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\"><span class=\"\">HPMC-molekyylit sitoutuvat vesimolekyyleihin vetysidosten v\u00e4lityksell\u00e4, jolloin osa \u201dvapaasta vedest\u00e4\u201d muuttuu sitoutuneeksi vedeksi. HPMC-molekyyliketjujen hydrofiiliset ryhm\u00e4t muodostavat <\/span><strong><span class=\"\">vetysidosverkosto<\/span><\/strong><span class=\"\">\u00a0veden kanssa, mik\u00e4 lis\u00e4\u00e4 merkitt\u00e4v\u00e4sti nestem\u00e4isen faasin viskositeettia.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Kipsimassassa t\u00e4m\u00e4 ilmenee seuraavasti: kun kipsipohjaista materiaalia levitet\u00e4\u00e4n imukykyiselle kevytbetonisein\u00e4lle tai kuivalle kipsilevylle,\u00a0<\/span><strong><span class=\"\">HPMC:n muodostama polymeerikalvokudos est\u00e4\u00e4 tehokkaasti vesimolekyylien nopean siirtymisen substraatin suuntaan<\/span><\/strong><span class=\"\">. T\u00e4m\u00e4 \u201dhidastettu veden haihtuminen\u201d ei ainoastaan takaa, ett\u00e4 kipsihiukkasille j\u00e4\u00e4 riitt\u00e4v\u00e4sti vett\u00e4 hydraation loppuun saattamiseksi, vaan est\u00e4\u00e4 my\u00f6s liian nopeasta kosteuden menetyksest\u00e4 johtuvan kuivumiskutistumisen ja halkeilun.<\/span><\/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-b651205 elementor-widget elementor-widget-heading\" data-id=\"b651205\" 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.  \u201dKaksinkertainen vaikutus\u201d: kovettumisaikojen tarkka s\u00e4\u00e4t\u00f6<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38d3ec4 elementor-widget elementor-widget-text-editor\" data-id=\"38d3ec4\" 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\"><span class=\"\">Rakennusalan ty\u00f6ntekij\u00f6iden keskuudessa vallitsee yleinen v\u00e4\u00e4rink\u00e4sitys, ett\u00e4 HPMC:t\u00e4 lis\u00e4t\u00e4\u00e4n yksinomaan kovettumisen hidastimena. Todellisuudessa erikoistunut HPMC vaikuttaa\u00a0<\/span><strong><span class=\"\">kaksinkertainen vaikutus<\/span><\/strong><span class=\"\">\u00a0kipsij\u00e4rjestelm\u00e4n osalta:<\/span><\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Fysikaalinen sakeuttaminen<\/span><\/strong><span class=\"\">\u00a0(fysikaalinen vaikutus): Liukenemisen j\u00e4lkeen HPMC lis\u00e4\u00e4 pastan viskositeettia ja hidastaa ionien diffuusionopeutta, mik\u00e4 hidastaa hemihydraattikipsin liukenemista \u2013 sill\u00e4 on siis hidastava vaikutus.<\/span><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Kemiallinen edist\u00e4minen<\/span><\/strong><span class=\"\">\u00a0(mahdollinen vaikutus): Tutkimusten mukaan erikoistunut HPMC vakauttaa vesiklusterirakenteita ja tarjoaa siten enemm\u00e4n ydintymiskohteita dihydraattikipsin kiteytymiselle. Kun hydraatio on alkanut, se edist\u00e4\u00e4 aktiivisesti kiteiden keskin\u00e4ist\u00e4 kiinnittymist\u00e4 toisiinsa.<\/span><\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><span class=\"\">T\u00e4m\u00e4 on erikoistuneen HPMC:n ja tavallisen selluloosan keskeinen ero: se takaa riitt\u00e4v\u00e4n ty\u00f6st\u00f6ajan ja est\u00e4\u00e4 samalla liiallisen kovettumisen hidastumisen, joka heikent\u00e4isi lopullista lujuutta, jolloin varhaisvaiheen lujuusominaisuudet s\u00e4ilyv\u00e4t.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\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\">III. Rakennust\u00f6iden ty\u00f6stett\u00e4vyyden parantaminen: \u201dtahmeasta laastista\u201d \u201dsujuvasti liukuvaan\u201d<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a4a0041 elementor-widget elementor-widget-text-editor\" data-id=\"a4a0041\" 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>Rakennusty\u00f6maalla ty\u00f6skenteleville levitt\u00e4jille mekanismit ovat teoreettisia \u2013 mutta \u201dk\u00e4situntuma\u201d on todellisuutta. Erikoistunut HPMC parantaa rakennusmateriaalin ty\u00f6stett\u00e4vyytt\u00e4 seuraavilla konkreettisilla tavoilla:<\/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-60c894d elementor-widget elementor-widget-heading\" data-id=\"60c894d\" 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.  Tiksotropia ja notkeuden kest\u00e4vyys<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3ac20c4 elementor-widget elementor-widget-text-editor\" data-id=\"3ac20c4\" 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\"><span class=\"\">Laadukkaat, kipsille tarkoitetut HPMC-tuotteet\u00a0<\/span><strong><span class=\"\">pseudoplastisuus<\/span><\/strong><span class=\"\">\u00a0(leikkausohentuminen). Sekoituksen ja levityksen aikana, kun leikkausnopeudet ovat suuret, viskositeetti laskee, mink\u00e4 ansiosta massa on kevytt\u00e4 ja helppo levitt\u00e4\u00e4 (tasainen levittyminen). Kun levitys lopetetaan tai kun massaa levitet\u00e4\u00e4n kattoon, eli kun leikkausnopeudet ovat pienet, viskositeetti palautuu nopeasti, mik\u00e4 takaa erinomaisen\u00a0<\/span><strong><span class=\"\">taipumiskest\u00e4vyys<\/span><\/strong><span class=\"\">.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Tavallinen selluloosa aiheuttaa usein \u201dtahmean lastan\u201d (tarttumista tasoituslaattaan) ja vaikeuttaa tasoitusta, kun taas erikoistunut HPMC tarjoaa optimoidun molekyylipainojakauman ansiosta erinomaisen liukuvuuden ja levitett\u00e4vyyden.<\/span><\/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-22fd1b9 elementor-widget elementor-widget-heading\" data-id=\"22fd1b9\" 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. Avoin aikataulu ja uudelleenk\u00e4sittelymahdollisuus<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e5fa09b elementor-widget elementor-widget-text-editor\" data-id=\"e5fa09b\" 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\"><span class=\"\">Kun ty\u00f6skennell\u00e4\u00e4n kuumassa ilmastossa tai eritt\u00e4in imukykyisill\u00e4 alustoilla (esim. hyvin kosteutta imevill\u00e4 tiiliseinill\u00e4 tai kevyill\u00e4 v\u00e4lisein\u00e4levyill\u00e4), perinteisten tuotteiden reunat kovettuvat usein ennenaikaisesti nopean kosteuden menetyksen vuoksi, mik\u00e4 heikent\u00e4\u00e4 saumojen laatua.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Erikoistunut HPMC muodostaa pinnalle tihe\u00e4n, vett\u00e4 sitovan kalvon, joka hidastaa pinnan kosteuden haihtumista. T\u00e4m\u00e4 pident\u00e4\u00e4\u00a0<\/span><strong><span class=\"\">aukioloaika<\/span><\/strong><span class=\"\">, mik\u00e4 mahdollistaa pitk\u00e4kestoisen laajapintaisen levityksen ja varmistaa, ettei per\u00e4kk\u00e4isten levityskertojen v\u00e4linen p\u00e4\u00e4llekk\u00e4isyys aiheuta repe\u00e4mi\u00e4 tai ep\u00e4tasaisia reunoja.<\/span><\/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-19b245a elementor-widget elementor-widget-heading\" data-id=\"19b245a\" 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. Voitelukyky ja ilman sitominen<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fce8f5b elementor-widget elementor-widget-text-editor\" data-id=\"fce8f5b\" 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\">Pinta-aktiivisen luonteensa vuoksi HPMC:hen sekoittuu hienoja ilmakuplia sekoituksen aikana (t\u00e4t\u00e4 tasapainotetaan yleens\u00e4 vaahdonestoaineilla). Kohtalainen ilman sitoutuminen toimii tahnassa ik\u00e4\u00e4n kuin \u201dmikrokuulalaakereina\u201d, mik\u00e4 parantaa merkitt\u00e4v\u00e4sti voitelevuutta, jolloin kipsitahna levittyy helpommin sein\u00e4pinnalle ja lopputulos on tasaisempi ja tihe\u00e4mpi.<\/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-bc2449f elementor-widget elementor-widget-heading\" data-id=\"bc2449f\" 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. Valintaopas: Miten tunnistaa \u201dkipsik\u00e4ytt\u00f6\u00f6n tarkoitettu\u201d HPMC?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c29d16f elementor-widget elementor-widget-text-editor\" data-id=\"c29d16f\" 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\"><span class=\"\">Kaikki HPMC-laadut eiv\u00e4t sovi yht\u00e4 hyvin kipsin kanssa. K\u00e4yt\u00e4nn\u00f6n tuotekoostumusten suunnittelussa TENESSY suosittelee seuraavien teknisten parametrien arviointia suorituskyvyn varmistamiseksi:<\/span><\/p><div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within ds-scroll-area--enabled _1210dd7 c03cafe9\"><table><thead><tr><th><strong><span class=\"\">Parametrin ulottuvuus<\/span><\/strong><\/th><th><strong><span class=\"\">Tavallinen\/yleisk\u00e4ytt\u00f6inen HPMC<\/span><\/strong><\/th><th><strong><span class=\"\">Kipsik\u00e4ytt\u00f6\u00f6n tarkoitettu HPMC\u00a0<\/span><\/strong><\/th><th><strong><span class=\"\">Vaikutus suorituskykyyn<\/span><\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong><span class=\"\">Viskositeetti (mPa\u00b7s)<\/span><\/strong><\/td><td><span class=\"\">Yksitt\u00e4inen tai liian korkea viskositeetti<\/span><\/td><td><span class=\"\">Keskitason tai korkea viskositeetti (esim. 40 000\u201375 000), joka on sovitettu eri kipsityypeille<\/span><\/td><td><span class=\"\">Tasapainottaa viskositeettia ja juoksevuutta, jotta v\u00e4ltet\u00e4\u00e4n \u201dtahmea laasti\u201d<\/span><\/td><\/tr><tr><td><strong><span class=\"\">Vedenpid\u00e4tysaste<\/span><\/strong><\/td><td><span class=\"\">Kohtalainen (&lt;98%)<\/span><\/td><td><strong><span class=\"\">Korkea vedenpid\u00e4tyskyky (\u226599%)<\/span><\/strong><span class=\"\">, optimoitu hemihydraattikipsille<\/span><\/td><td><span class=\"\">Hidastaa veden haihtumista ja varmistaa rajapinnan tarttuvuuslujuuden<\/span><\/td><\/tr><tr><td><strong><span class=\"\">Geeliytymisl\u00e4mp\u00f6tila<\/span><\/strong><\/td><td><span class=\"\">Perinteinen (58\u201365 \u00b0C)<\/span><\/td><td><span class=\"\">Modifioitu (70\u201390 \u00b0C), l\u00e4mm\u00f6nkest\u00e4v\u00e4 laatu<\/span><\/td><td><span class=\"\">Sopii kes\u00e4n korkeisiin l\u00e4mp\u00f6tiloihin rakennust\u00f6iss\u00e4, jotta l\u00e4mp\u00f6tehokkuus ei heikkene<\/span><\/td><\/tr><tr><td><strong><span class=\"\">Liukenemisnopeus<\/span><\/strong><\/td><td><span class=\"\">Nopeasti liukeneva, taipuvainen agglomeroitumaan<\/span><\/td><td><strong><span class=\"\">Viiv\u00e4stetty liukeneminen \/ pintak\u00e4sitelty<\/span><\/strong><\/td><td><span class=\"\">Mahdollistaa tasaisen levi\u00e4misen kuivaseoksessa ja viskositeetin asteittaisen laskun veden lis\u00e4\u00e4misen yhteydess\u00e4<\/span><\/td><\/tr><\/tbody><\/table><\/div>\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-514c49a elementor-widget elementor-widget-heading\" data-id=\"514c49a\" 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. P\u00e4\u00e4telm\u00e4t<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-63e8315 elementor-widget elementor-widget-text-editor\" data-id=\"63e8315\" 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\"><span class=\"\">Nykyp\u00e4iv\u00e4n yh\u00e4 kilpailukykyisemmill\u00e4 kipsituotemarkkinoilla pelkk\u00e4 yleisen HPMC:n \u201dlis\u00e4\u00e4minen\u201d ei ainoastaan nosta kustannuksia, vaan voi my\u00f6s aiheuttaa sivuvaikutuksia, kuten \u201dlaastin tarttumista\u201d ja \u201dpitkittynytt\u00e4 kovettumattomuutta\u201d. Tieteellisesti perusteltu l\u00e4hestymistapa on\u00a0<\/span><strong><span class=\"\">oikea valinta<\/span><\/strong><span class=\"\">.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Valinta <a href=\"https:\/\/tenessy.com\/\">TENESSY<\/a>HPMC, joka on suunniteltu erityisesti kipsipohjaisille rakennusmateriaaleille, tarkoittaa k\u00e4yt\u00e4nn\u00f6ss\u00e4 sellaisen edistyneen teknologian k\u00e4ytt\u00f6\u00f6nottoa, jonka perustana on\u00a0<\/span><strong><span class=\"\">vesirakenteiden s\u00e4\u00e4ntely<\/span><\/strong><span class=\"\">. Kirjoittanut\u00a0<\/span><strong><span class=\"\">hidastaa vapaan veden suuntautunutta liikkumista<\/span><\/strong><span class=\"\">, erikoistunut HPMC antaa kipsimassoille poikkeuksellisen\u00a0<\/span><strong><span class=\"\">vedenpid\u00e4tyskyky, erinomainen notkeutumiskest\u00e4vyys sek\u00e4 pehme\u00e4 ja miellytt\u00e4v\u00e4 levitystuntuma<\/span><\/strong><span class=\"\">.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">T\u00e4m\u00e4 ei ainoastaan v\u00e4henn\u00e4 teknisi\u00e4 riskej\u00e4, kuten kipsilaastien halkeilua ja heikkoa pintalujuutta, vaan my\u00f6s parantaa merkitt\u00e4v\u00e4sti rakentamisen tehokkuutta. Korkeaa laatua tavoitteleville rakennusmateriaalivalmistajille investointi erikoislaatuiseen HPMC:hen on t\u00e4rkein askel kohti tuotteiden erottumista kilpailijoista ja suorituskyvyn parantamista.<\/span><\/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>Kipsipohjaisten rakennusmateriaalien kuivaseoslaastij\u00e4rjestelmiss\u00e4 \u2013 kuten rappauskipsiss\u00e4, saumausaineissa ja itsetasoittuvissa kipsiseoksissa \u2013 hydroksipropyylimetyyliselluloosa (HPMC) muodostaa vain muutaman tuhannesosan kuivaseoksen kokonaispainosta (tyypillisesti 0,1%\u20130,5%).<\/p>","protected":false},"author":1,"featured_media":11500,"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-14788","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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