Interaction of polymers with portland cement during hydration: A study of the chemistry of the pore solution of polymer-modified cement systems

Influence of carboxylated styrene–butadiene latex copolymer on Portland cement hydration

“…Su et al [11] reported that styrene-acrylate or vinylpropionate-vinylidenechloride latex dispersions retard the setting and hydration of cement. Larbi and Bijen [12] investigated the influence of the same polymers on the composition of cement pore solution and showed that Ca 2+ ions are chelated by the polymers. Betioli et al [13] and Silva et al [14] examined the interaction between ethylene-vinylacetate copolymers and Portland cement via thermogravimetric analysis.…”

Relating Material Properties to Exposure Conditions for Predicting Service Life in Concrete Bridge Decks in Indiana

“…The other theory is that with reactive polymers, in addition to aforementioned benefit, chemical reaction between the polymer particles and the hydration products of the cement takes place. However, the mechanism of the later theory is not fully understood and explained [Larbi and Bijen, 1990]. The first theory has been supported by many researchers [Ben-Dor et al, 1985;Lewis, 1990;Ohama, 1995].…”

Pore structure evolution and strength development of G-type elastic oil well cement. A combined 1H NMR and ultrasonic study

“…Experiments with carboxylated latex-modified cements have shown that Ca(OH) 2 precipitation is interrupted by reaction between the Ca ++ and the carboxyl groups of the latex, hence addition of latex inhibits cement hydration [12]. Besides, latex film and strand formations within the solid cement matrix stitch the opposite sides of the voids, thus increasing the tensile strength and toughness.…”