活性粉末混凝土高温力学性能研究进展

Reactive powder concrete (RPC) is highly susceptible for serious damages during high temperature owing to its dense microstructure. However, demand of RPC in construction industry is increasing due to ultra-high strength and durability, which raises concerns about fire resistance of RPC. Recently, numerous experimental studies have been carried out to study the performance of RPC under and after high temperature. Within this framework, the experimental data about the mechanical properties of RPC both under and after high temperature are compiled and compared. The important mechanical properties focused are compressive strength, tensile strength, flexure strength, modulus, and stress-strain relationship. A comparison of compiled fire resistance data of RPC with existing code provisions is also presented. The overall objective of the papers is to outline those factors which improve high temperature performance of RPC.