Abstract
The effect of anhydrous cement on the thermal stability of vinyl-type polymer concretes has been studied by investigating the interaction between the polymers and the calcium compounds of cement. It was proven from differential scanning calorimetry that C 2S and C 3S have a significant effect on the thermal stability of polymethyl methacrylate and polystyrene. From infrared analysis, the reaction mechanism appears to occur between the calcium oxide in the filler and the -CH 2- groups in the polymer. Polymer concrete containing 17 wt% C 2S maintained excellent strength after exposure for 30 days to 25% brine solutions and to air at 238°C.
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