{"id":11507,"date":"2025-04-28T07:41:50","date_gmt":"2025-04-28T07:41:50","guid":{"rendered":"https:\/\/tenessy.com\/?p=11507"},"modified":"2025-04-28T07:47:28","modified_gmt":"2025-04-28T07:47:28","slug":"concrete-not-performing-well-explore-the-right-admixture","status":"publish","type":"post","link":"https:\/\/tenessy.com\/cs\/nedostatecne-vykonny-beton-prozkoumat-spravnou-primes\/","title":{"rendered":"Beton nep\u016fsob\u00ed dob\u0159e? Prozkoumejte spr\u00e1vnou p\u0159\u00edm\u011bs"},"content":{"rendered":"
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"beton\"\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
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\n\t\t\t\t\t\t\t\t\tVe stavebnictv\u00ed se s betonem, kter\u00fd nespl\u0148uje o\u010dek\u00e1v\u00e1n\u00ed, setk\u00e1v\u00e1me \u010dast\u011bji, ne\u017e si mysl\u00edte. Od p\u0159ed\u010dasn\u00e9ho prask\u00e1n\u00ed a\u017e po \u0161patn\u00fd n\u00e1r\u016fst pevnosti, mnoho z t\u011bchto probl\u00e9m\u016f souvis\u00ed s chyb\u011bj\u00edc\u00edmi nebo nevhodn\u00fdmi p\u0159\u00edsadami a p\u0159\u00edm\u011bsemi v betonu.\n

\nV\u00fdb\u011br spr\u00e1vn\u00e9 p\u0159\u00edm\u011bsi do betonu<\/a>\u00a0nebo p\u0159\u00edsady do betonu mohou v\u00fdrazn\u011b zlep\u0161it pevnost, zpracovatelnost, trvanlivost a dlouhodobou v\u00fdkonnost - u\u0161et\u0159\u00ed v\u00e1m \u010das i n\u00e1kladn\u00e9 opravy.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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I.B\u011b\u017en\u00e9 probl\u00e9my s betonem, se kter\u00fdmi se m\u016f\u017eete setkat<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Poruchy betonu nejsou jen nep\u0159\u00edjemn\u00e9 - mohou ohrozit integritu a bezpe\u010dnost va\u0161\u00ed konstrukce. Pochopen\u00ed hlavn\u00edch p\u0159\u00ed\u010din v\u00e1m pom\u016f\u017ee zvolit spr\u00e1vn\u00e1 \u0159e\u0161en\u00ed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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1. Prask\u00e1n\u00ed a smr\u0161\u0165ov\u00e1n\u00ed<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Trhliny mohou vznikat v plastick\u00e9, vysychaj\u00edc\u00ed nebo ztvrdl\u00e9 f\u00e1zi betonu. Mezi typick\u00e9 p\u0159\u00ed\u010diny pat\u0159\u00ed nadm\u011brn\u00e9 mno\u017estv\u00ed vody ve sm\u011bsi, rychl\u00e9 odpa\u0159ov\u00e1n\u00ed, tepeln\u00e9 nam\u00e1h\u00e1n\u00ed nebo smr\u0161\u0165ov\u00e1n\u00ed b\u011bhem vytvrzov\u00e1n\u00ed.<\/p>

Dobrou zpr\u00e1vou je, \u017ee pou\u017eit\u00ed p\u0159\u00edsad do betonu, kter\u00e9 zabra\u0148uj\u00ed vzniku trhlin, jako jsou nap\u0159\u00edklad p\u0159\u00edsady do betonu s vl\u00e1kny a l\u00e1tky sni\u017euj\u00edc\u00ed smr\u0161\u0165ov\u00e1n\u00ed, m\u016f\u017ee v\u00fdrazn\u011b sn\u00ed\u017eit riziko vzniku trhlin v ka\u017ed\u00e9 f\u00e1zi.<\/p>

Plastov\u00e9 smr\u0161\u0165ovac\u00ed trhliny:<\/b> Zabra\u0148uj\u00ed tomu vl\u00e1kna a reduk\u010dn\u00ed prost\u0159edky proti odpa\u0159ov\u00e1n\u00ed.<\/p>

Smr\u0161\u0165ovac\u00ed trhliny p\u0159i vysych\u00e1n\u00ed:<\/b> Sn\u00ed\u017een\u00ed pomoc\u00ed p\u0159\u00edm\u011bs\u00ed sni\u017euj\u00edc\u00edch smr\u0161t\u011bn\u00ed.<\/p>

Tepeln\u00e9 prask\u00e1n\u00ed:<\/b> Minimalizov\u00e1no pomoc\u00ed regulace teploty a retard\u00e9r\u016f.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"concrete_crack\"\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
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2. Nedostate\u010dn\u00fd rozvoj s\u00edly<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tPokud v\u00e1\u0161 beton nevykazuje dostate\u010dnou pevnost, m\u016f\u017ee to b\u00fdt zp\u016fsobeno nevhodn\u00fdm pom\u011brem vody a cementu, nedostate\u010dn\u00fdm vytvrzen\u00edm nebo nekvalitn\u00edmi materi\u00e1ly.\n

\nP\u0159\u00edsady do betonu, jako jsou p\u0159\u00edpravky pro redukci vody s vysokou \u00fa\u010dinnost\u00ed\u00a0(superplastifik\u00e1tory)<\/a>\u00a0umo\u017e\u0148uj\u00ed ni\u017e\u0161\u00ed pom\u011br vody a cementu bez vlivu na zpracovatelnost, co\u017e zaji\u0161\u0165uje vy\u0161\u0161\u00ed \u010dasnou a kone\u010dnou pevnost.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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3. \u0160patn\u00e1 zpracovatelnost a \u010derpatelnost<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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P\u0159\u00edli\u0161 tuh\u00fd nebo lepiv\u00fd beton znesnad\u0148uje pokl\u00e1dku a m\u016f\u017ee zv\u00fd\u0161it n\u00e1klady na pr\u00e1ci.<\/p>

P\u0159\u00edm\u011bsi do betonu, jako jsou plastifik\u00e1tory, zlep\u0161uj\u00ed jeho tekutost bez zv\u00fd\u0161en\u00ed obsahu vody, co\u017e zaji\u0161\u0165uje plynul\u00e9 \u010derp\u00e1n\u00ed a snadn\u011bj\u0161\u00ed ukl\u00e1d\u00e1n\u00ed i v n\u00e1ro\u010dn\u00fdch bedn\u011bn\u00edch.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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4. Nekonzistentn\u00ed \u010dasy nastaven\u00ed<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Rychl\u00e9 nebo opo\u017ed\u011bn\u00e9 nastaven\u00ed m\u016f\u017ee m\u00edt katastrof\u00e1ln\u00ed n\u00e1sledky pro dokon\u010dovac\u00ed pl\u00e1ny.<\/p>

S p\u0159\u00edsadami do betonu pro rychlej\u0161\u00ed vytvrzov\u00e1n\u00ed (urychlova\u010de) nebo zpomalova\u010de m\u016f\u017eete \u0159\u00eddit dobu tuhnut\u00ed podle pot\u0159eb projektu, a to i za extr\u00e9mn\u00edch pov\u011btrnostn\u00edch podm\u00ednek.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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II.Jak spr\u00e1vn\u00e1 p\u0159\u00edm\u011bs do betonu zlep\u0161uje jeho vlastnosti<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Porozum\u011bn\u00ed tomu, jak\u00e9 p\u0159\u00edsady lze do betonu p\u0159id\u00e1vat, pom\u00e1h\u00e1 optimalizovat nejen pevnost, ale tak\u00e9 trvanlivost, estetiku a n\u00e1klady na \u017eivotn\u00ed cyklus.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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1.Polykarboxyl\u00e1tov\u00e9 superplastifik\u00e1tory redukuj\u00edc\u00ed vodu a (PCE)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Sn\u00ed\u017een\u00ed obsahu vody o 5%-25%<\/b>.<\/p>

Zlep\u0161en\u00ed zpracovatelnosti bez zv\u00fd\u0161en\u00ed mno\u017estv\u00ed vody.<\/p>

Zvy\u0161uje pevnost v tlaku a sni\u017euje smr\u0161\u0165ov\u00e1n\u00ed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"pr\u00e1\u0161ek\"\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
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2.Akceler\u00e1tory a retard\u00e9ry nastaven\u00ed<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tUrychlova\u010de (nap\u0159. typy bez chloridu v\u00e1penat\u00e9ho) urychluj\u00ed n\u00e1r\u016fst pevnosti v po\u010d\u00e1te\u010dn\u00edm st\u00e1diu, co\u017e je nezbytn\u00e9 pro rychl\u00e9 projekty nebo betonov\u00e1n\u00ed v chladn\u00e9m po\u010das\u00ed.\n

\nRetard\u00e9ry<\/a>\u00a0v hork\u00e9m podneb\u00ed nebo p\u0159i velk\u00e9m mno\u017estv\u00ed n\u00e1pln\u011b zpomaluj\u00ed dobu tuhnut\u00ed a umo\u017e\u0148uj\u00ed del\u0161\u00ed pracovn\u00ed dobu bez sn\u00ed\u017een\u00ed pevnosti.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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3.P\u0159\u00edsady sni\u017euj\u00edc\u00ed smr\u0161t\u011bn\u00ed a p\u0159\u00edsady do betonu s vl\u00e1kny<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tP\u0159\u00edsady sni\u017euj\u00edc\u00ed smr\u0161t\u011bn\u00ed (SRA) minimalizuj\u00ed smr\u0161\u0165ov\u00e1n\u00ed p\u0159i vysych\u00e1n\u00ed t\u00edm, \u017ee sni\u017euj\u00ed kapil\u00e1rn\u00ed nap\u011bt\u00ed v p\u00f3rech.\n

\nBetonov\u00e1 vl\u00e1kna<\/a>\u00a0p\u0159\u00edsady (ocelov\u00e1 vl\u00e1kna, polypropylenov\u00e1 vl\u00e1kna atd.) rozkl\u00e1daj\u00ed nap\u011bt\u00ed, reguluj\u00ed \u0161\u00ed\u0159en\u00ed trhlin a zvy\u0161uj\u00ed hou\u017eevnatost.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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4.Vzdu\u0161n\u00e9 v\u00fdcvikov\u00e9 prost\u0159edky<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Do sm\u011bsi p\u0159idejte drobn\u00e9 vzduchov\u00e9 bublinky.<\/p>

Zlep\u0161uje odolnost proti zmrazov\u00e1n\u00ed a rozmrazov\u00e1n\u00ed, co\u017e je nezbytn\u00e9 pro chodn\u00edky, mosty a konstrukce vystaven\u00e9 p\u016fsoben\u00ed rozmrazovac\u00edch sol\u00ed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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III.P\u0159\u00edklady z re\u00e1ln\u00e9ho sv\u011bta: P\u0159\u00edklady z praxe: Jak aditiva \u0159e\u0161\u00ed konkr\u00e9tn\u00ed probl\u00e9my<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Pr\u016fmyslov\u00e9 podlahy: Pou\u017eit\u00ed p\u0159\u00edsad z betonov\u00fdch vl\u00e1ken v\u00fdrazn\u011b sni\u017euje v\u00fdskyt mikrotrhlin p\u0159i dynamick\u00e9m zat\u00ed\u017een\u00ed.<\/p>

Projekty v chladn\u00e9m klimatu: Pou\u017eit\u00ed nechloridov\u00fdch urychlova\u010d\u016f zaji\u0161\u0165uje v\u010dasn\u00fd v\u00fdvoj pevnosti p\u0159edt\u00edm, ne\u017e teploty pod bodem mrazu mohou beton po\u0161kodit.<\/p>

Mosty a tunely: Pou\u017eit\u00ed p\u0159\u00edm\u011bs\u00ed redukuj\u00edc\u00edch vodu a PP vl\u00e1ken zvy\u0161uje odolnost proti chemick\u00fdm vliv\u016fm a ot\u011bru.<\/p>

Kdy\u017e se pt\u00e1te \"Jak\u00e9 p\u0159\u00edsady lze p\u0159id\u00e1vat do betonu<\/b>,\" je d\u016fle\u017eit\u00e9 p\u0159izp\u016fsobit p\u0159\u00edsadu skute\u010dn\u00fdm pot\u0159eb\u00e1m projektu, nikoliv ji vyb\u00edrat n\u00e1hodn\u011b.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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IV.Kl\u00ed\u010dov\u00e9 \u00favahy p\u0159i v\u00fdb\u011bru p\u0159\u00edm\u011bsi do betonu<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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V\u00fdb\u011br spr\u00e1vn\u00fdch p\u0159\u00edsad do betonu nen\u00ed o v\u00fdb\u011bru nejdra\u017e\u0161\u00edho produktu, ale o v\u00fdb\u011bru toho nejvhodn\u011bj\u0161\u00edho pro v\u00e1\u0161 projekt.<\/p>

V\u00fdkonnostn\u00ed c\u00edle:<\/b> (pevnost, odolnost, kvalita povrchov\u00e9 \u00fapravy)<\/p>

Klima a \u017eivotn\u00ed prost\u0159ed\u00ed:<\/b> (chladno, horko, vlhko, sucho)<\/p>

Typ betonu:<\/b> (norm\u00e1ln\u00ed hmotnost, n\u00edzk\u00e1 hmotnost, samohutn\u00edc\u00ed)<\/p>

Zp\u016fsob um\u00edst\u011bn\u00ed:<\/b> (\u010derpadlo, kbel\u00edk, skluzavka)<\/p>

Pot\u0159eby dlouhodob\u00e9 \u017eivotnosti:<\/b> (odolnost proti korozi, odolnost proti p\u016fsoben\u00ed s\u00edran\u016f)<\/p>

M\u00e1me odborn\u00e9 znalosti, abychom v\u00e1m doporu\u010dili spr\u00e1vn\u00e9 p\u0159\u00edm\u011bsi do betonu pro v\u00e1\u0161 projekt a poskytli \u0159e\u0161en\u00ed p\u0159\u00edsad na m\u00edru pro r\u016fzn\u00e9 receptury betonu. Spr\u00e1vn\u00e9 vyhodnocen\u00ed v\u00e1m zajist\u00ed nejlep\u0161\u00ed v\u00fdkon za nejlep\u0161\u00ed cenu.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"beton\"\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
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V.Pro\u010d spolupracovat s profesion\u00e1ln\u00edm v\u00fdrobcem p\u0159\u00edsad do betonu?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tNa adrese\u00a0TENESSY<\/a>, nejsme jen dodavatelem - jsme partnerem pro \u0159e\u0161en\u00ed.\n

\n\"\u2705\" \u0160irok\u00e9 portfolio produkt\u016f: Zahrnuje v\u0161e od p\u0159\u00edsad do cementu a\u017e po pokro\u010dil\u00e9 modifik\u00e1tory v\u00fdkonu.\n

\n\"\u2705\" Vlastn\u00ed \u0159e\u0161en\u00ed: Pot\u0159ebujete speci\u00e1ln\u00ed po\u017eadavky? Nab\u00edz\u00edme receptury p\u0159\u00edm\u011bs\u00ed do betonu na m\u00edru pro v\u00e1\u0161 projekt.\n

\n\"\u2705\" Technick\u00e1 podpora: N\u00e1\u0161 t\u00fdm poskytuje poradenstv\u00ed v oblasti n\u00e1vrh\u016f sm\u011bs\u00ed, testov\u00e1n\u00ed a aplikac\u00ed na staveni\u0161ti.\n

\n\"\u2705\" Spolehliv\u00e9 dod\u00e1n\u00ed: Dodr\u017eov\u00e1n\u00ed harmonogramu v\u00fdstavby je na\u0161\u00ed prioritou.\n\nV\u00fdb\u011br spr\u00e1vn\u00fdch p\u0159\u00edsad a p\u0159\u00edm\u011bs\u00ed do betonu za\u010d\u00edn\u00e1 v\u00fdb\u011brem spr\u00e1vn\u00e9ho partnera.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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VI.Z\u00e1v\u011br<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Konkr\u00e9tn\u00ed probl\u00e9my s v\u00fdkonem nejsou nevyhnuteln\u00e9. Se spr\u00e1vn\u00fdmi p\u0159\u00edsadami a p\u0159\u00edm\u011bsemi do betonu m\u016f\u017eete vytvo\u0159it konstrukce, kter\u00e9 jsou pevn\u011bj\u0161\u00ed, odoln\u011bj\u0161\u00ed a maj\u00ed del\u0161\u00ed \u017eivotnost.<\/p>

A\u0165 u\u017e pot\u0159ebujete p\u0159\u00edsady do betonu pro prevenci vzniku trhlin, p\u0159\u00edsady do betonu pro rychlej\u0161\u00ed vytvrzen\u00ed nebo jednodu\u0161e lep\u0161\u00ed zpracovatelnost, m\u00e1me pro v\u00e1s ta spr\u00e1vn\u00e1 \u0159e\u0161en\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":"

V\u00fdb\u011br spr\u00e1vn\u00e9 p\u0159\u00edm\u011bsi nebo p\u0159\u00edsady do betonu m\u016f\u017ee v\u00fdrazn\u011b zlep\u0161it pevnost, zpracovatelnost a trvanlivost.<\/p>","protected":false},"author":1,"featured_media":11524,"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":[90],"class_list":["post-11507","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news","tag-concrete-admixture"],"yoast_head":"\nConcrete Not Performing Well? 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