成型压力对再生细集料水泥基材料性能影响的研究  

Investigation on behavior of molding pressure to recycled fine aggregate cement-base material

作　　者：李清海[1] 王菲菲[1] 周胜男[1] 李清原[1] 

机构地区：[1]中国建筑材料科学研究总院绿色建筑材料国家重点实验室,北京100024

出　　处：《混凝土》2013年第11期22-24,共3页Concrete

基　　金："十二五"国家科技支撑计划课题(2012BAJ20B04)

摘　　要：对建筑垃圾作为再生细集料取代天然河砂,通过压制成型方法制备水泥基材料进行研究,探索了成型压力对再生细集料水泥基材料强度和耐久性的影响规律。研究结果表明:再生集料制得的水泥基材料强度高于天然河砂配制的水泥基材料强度;在建筑垃圾细集料全部取代河砂的前提下,水泥基材料的强度随成型压力的增加而呈不同幅度的增加;在耐久性方面,再生细集料水泥基材料满足《普通混凝土长期性能和耐久性能试验方法标准》中D100抗冻等级指标要求。并对其机理进行了分析。According to the search ofthe construction waste as a recycled fine aggregate instead of natural river sand and preparation of cement-base material by using the method of pressure molding, materials, the strength and durability of cement-based materials were stud- ied on different molding pressure.The result shows that the strength of recycled fine aggregate cement-base material is higher than the strength of the natural river sand mixed cement base material, and the strength of recycled fine aggregate cement-base material increases under the different degree with molding pressure increasing.The durability of recycled fine aggregate cement-based materials meet D 100 frost resisting class indication in ＂standard for test methods of long-term performance and durability of ordinary concrete＂.

关 键 词：建筑垃圾 再生细集料 水泥基材料 成型压力 强度 耐久性 

分 类 号：TU528.01[建筑科学—建筑技术科学]