聚苯乙烯泵送混凝土的配制与施工

Preparation of polystyrene pumping concrete and construction

采用聚苯乙烯颗粒作为轻骨料配制表观密度(1 600±50)kg/m3的C15混凝土和表观密度(1 800±50)kg/m3的C20混凝土,且泵送施工。生产工艺中采用控制用水量和优化加料顺序保证聚苯乙烯颗粒的充分包裹,控制振捣时间解决聚苯乙烯混凝土施工时易分层,利用普通混凝土的生产与施工过程,实现了聚苯乙烯泵送混凝土在实际工程中的应用。

The concrete C15 and C20 are prepared with polystyrene aggregate,which density of C15 is（1 600±50）kg/m3 and density of C20 is （1 800 ±50）kg/m3.These polystyrene concrete are pumped.The water content and materials filling sequence are controlled in order to be polystyrene packed.vibrate time is made for reducing segregation of polystyrene concrete.The study denotes that polystyrene concrete is pumped in the real structure with common concrete equipment and technology.