Health & Environmental Research Online (HERO)


Print Feedback Export to File
6761446 
Journal Article 
Mechanical and permeability properties of polymer-modified concrete using hydrophobic agent 
Liu, B; Shi, J; Sun, M; He, Z; Xu, H; Tan, J; , 
2020 
Journal of Building Engineer
ISSN: 2352-7102 
ELSEVIER 
AMSTERDAM 
31 
English 
WOS:000541477700005 
Three types of polymer modifier used in concrete (styrene-butadiene rubber latex, polyacrylic ester emulsion and organic silicon waterproof agent) were employed to investigate their effects on the compressive strength, capillary water absorption and chloride ion permeability of concrete. Results show that the incorporation of polymer modifier reduces the compressive strength, and fly ash (FA) can improve this adverse effect. All three polymer modifiers can significantly reduce the permeability of concrete, and the effect is more significant at high water-to-binder ratio. Among them, the compressive strength of organic silicon waterproof agent modified concrete is the most similar to that of ordinary concrete, and the sorptivity coefficient is relatively low, even at higher dosages. In addition, with the prolongation of the curing age, the impermeability of polymer-modified concrete mixed with FA reaches the best. The addition of FA can not only achieve economic and environmental benefits, but also cooperate with the polymer in the concrete, thereby improving the waterproofness of the concrete. 
Capillary water absorption; Compressive strength; Polymer-modified concrete; Rapid chloride permeability 
JOURNAL OF BUILDING ENGINEERING