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Experimental investigation on freeze-thaw durability of polymer concrete

Frontiers of Structural and Civil Engineering 2021年第4期15卷 1038-1046页

作者： khashayar jafari Fatemeh HEIDARNEZHAD Omid MOAMMER Majid JARRAH Department of Civil and Environmental Engineering Pennsylvania State UniversityUniversity ParkPA16802USA Department of Civil Engineering Sharif University of TechnologyTehranIran Department of Civil and Environmental Engineering Washington State UniversityPullmanWA99164USA

Assessing the durability of concrete is of prime importance to provide an adequate service life and reduce the repairing cost of ***-thaw is one such test that indicates the ability of concrete to last a long time without a significant loss in its *** this study,the freeze-thaw resistance of polymer concrete containing different polymer contents was explored and compared to various conventional cement ***’fresh and hardened properties were assessed for their workability,air content,and compressive *** mass loss,length change,dynamic modulus of elasticity,and residual compressive strength were determined for all types of concretes subjected to freeze-thaw cycles according to ASTM C666-procedure *** showed that polymer concrete(PC)specimens prepared with higher dosages of polymer contents possessed better freeze-thaw durability compared to other *** high durability performance of PCs is mainly due to their impermeable microstructures,absence of water in their structure,and the high bond strength between aggregates and a polymer *** is also indicated that the performance of high-strength concrete containing air-entraining admixture is comparable with PC having optimum polymer content in terms of residual compressive strength,dynamic modulus of elasticity,mass loss,and length change.

关键词： durability test freeze-thaw resistance polymer concrete residual compressive strength ASTM C666-15

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