Effect of polymerizable ionic surfactant in the acrylic latex additive on advanced properties of Portland cement-based mortars

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F25%3A00636132" target="_blank" >RIV/68378297:_____/25:00636132 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216275:25310/25:39923041 RIV/75081431:_____/25:00002949

Výsledek na webu

<a href="https://doi.org/10.1016/j.conbuildmat.2025.142079" target="_blank" >https://doi.org/10.1016/j.conbuildmat.2025.142079</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.conbuildmat.2025.142079" target="_blank" >10.1016/j.conbuildmat.2025.142079</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of polymerizable ionic surfactant in the acrylic latex additive on advanced properties of Portland cement-based mortars

Popis výsledku v původním jazyce

One of the current trends in the construction industry is the development and application of innovative, durable, and environmentally friendly cementitious mortar materials. Because of the negative bubble-forming effect of traditional latex polymer additives used in a (siliceous) cementitious mortar matrix, causing the deterioration of physico-mechanical performance, a new environmentally friendly acrylic latex additives with decreased bubble-formation was developed and experimentally verified. The emulsion polymerization was performed using a polymerizable surfactant that becomes covalently anchored to polymer particles. During mortar processing, surfactant desorption from the surface of latex polymer particles was avoided, preventing air entrainment and limiting additional environmental pollution. The positive effect of the novel latex additive resulted in the improvement of flexural and compressive strengths of Portland cement-based mortars compared to compositions prepared with a standard latex additive (comprising traditional non-polymerizable ionic surfactant), wherein these values were found to be higher by 1.9 and 2.0 MPa %, respectively, at 0.2 % by mass dosages of the latex additive. Moreover, the novel polymer additive positively reduced water ingress into the mortar structure, suggesting its potential in high-performance water-loaded applications. In this way, the developed mortars containing the novel acrylic latex additive provided not only products with lower sorptivity but, at the same time, led to cementitious structures with enhanced mechanical performance for specific water-loaded applications.

Název v anglickém jazyce

Effect of polymerizable ionic surfactant in the acrylic latex additive on advanced properties of Portland cement-based mortars

Popis výsledku anglicky

One of the current trends in the construction industry is the development and application of innovative, durable, and environmentally friendly cementitious mortar materials. Because of the negative bubble-forming effect of traditional latex polymer additives used in a (siliceous) cementitious mortar matrix, causing the deterioration of physico-mechanical performance, a new environmentally friendly acrylic latex additives with decreased bubble-formation was developed and experimentally verified. The emulsion polymerization was performed using a polymerizable surfactant that becomes covalently anchored to polymer particles. During mortar processing, surfactant desorption from the surface of latex polymer particles was avoided, preventing air entrainment and limiting additional environmental pollution. The positive effect of the novel latex additive resulted in the improvement of flexural and compressive strengths of Portland cement-based mortars compared to compositions prepared with a standard latex additive (comprising traditional non-polymerizable ionic surfactant), wherein these values were found to be higher by 1.9 and 2.0 MPa %, respectively, at 0.2 % by mass dosages of the latex additive. Moreover, the novel polymer additive positively reduced water ingress into the mortar structure, suggesting its potential in high-performance water-loaded applications. In this way, the developed mortars containing the novel acrylic latex additive provided not only products with lower sorptivity but, at the same time, led to cementitious structures with enhanced mechanical performance for specific water-loaded applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Construction and Building Materials

ISSN

0950-0618

e-ISSN

1879-0526

Svazek periodika

487

Číslo periodika v rámci svazku

August

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

142079

Kód UT WoS článku

001508644900003

EID výsledku v databázi Scopus

2-s2.0-105007429686