聚苯颗粒制备地面垫层用轻质保温砂浆的研究  

Research on the preparation of polystyrene particles lightweight insulation mortar used as ground cushion

作　　者：田胜力 李志博 徐海峰 郎昆仑 杨永峰 

机构地区：[1]北京金隅砂浆有限公司技术质量部,北京102402

出　　处：《混凝土》2015年第6期117-120,共4页Concrete

摘　　要：研究聚苯颗粒作为轻骨料制备地面垫层用轻质保温隔热砂浆的可行性。采用正交试验探究了水泥、机制砂、聚苯颗粒、HPMC用量对砂浆的工作性能、力学性能等因素的影响规律。研究表明:采用聚苯颗粒可以制备出工作性能、力学性能优良的地面垫层用轻质保温砂浆。其28d抗压强度达到3.6 MPa、干密度为842kg/m^3,导热系数为0.22 W/(m·K),满足12BJ-1工程做法所要求的干拌复合轻集料混凝土垫层性能指标。The feasibility of preparing lightweight insulation mortar used as ground cushion by polystyrene particles was studied in this paper.The orthogonal experiment was employed to explore the influence of dosage of cement manufactured sand,polystyrene particles and HPMC on the workability mechanical properties and other factors of the mortar.The results show lightweight insulation mortar used as ground cushion with excellent performance can be prepared with polystyrene particles.The 28 days compressive strength of prepared mortar reach 3.6 MPa,dry density is 842 kg/m-3,the thermal conductivity is 0.22 W/（m ＊K）,which meet the performance index of dry mix composite lightweight aggregate concrete cushion in the standard of 12BJ- 1.

关 键 词：聚苯颗粒 轻质保温砂浆 工作性能 力学性能 

分 类 号：TU528.041[建筑科学—建筑技术科学]