Polymers in Concrete


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Public Roads


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Technical Report SL-


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Development of Improved Polymeric Materials for Repairing Portland Cement Concrete Using Combinations of Vinyl Esters and Methacrylates


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A mechanistic approach was used to develop improved polymer concrete (PC) for repair of portland cement concrete (PCC). The VEPM binder system (vinyl esters containing acrylonitrile-butadiene copolymer, polar methacrylates, styrene and a silane coupling agent) produced PCs with tensile, flexural and compressive strengths superior to existing polyester PCs. VEPM PCs have excellent bonding characteristics to steel and PCC (both dry and moist), and the bonds are highly resistant to degradation by harsh freeze-thaw-soak cycles. They also have good absorption, chemical resistance and volume shrinkage.







Texas State Documents


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Methyl Methacrylate Polymer-concrete for Bomb Damage Repair


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Materials characterization studies have described monomer formulation for a wide range of ambient temperature. Strengths have been determined as a function of time from casting, casting temperature, testing temperature, aggregate moisture levels, type and size of aggregate, and amount of coarse aggregate. Aggregate moisture (5 percent) was found to result in up to 80-percent loss in modulus of rupture, or 60 percent when steel fibers were used. Shear strength between polymer concrete and asphalt was found to decrease with increasing temperature. The strength was less than 15 psi at 100 degrees F. (Author).