31374863polymer-impregnated concretePT2026-03-30 20:41:05UF31374866concrete, resinNDUF31374867plastic concreteNDUF31374868polymer concreteNDUF31374869resin concreteNDUF31374864concrete, plasticNDUF31374865concrete, polymer-impregnatedNDBT31344439concrete by composition or originPT