玻化微珠混凝土实心砖物理及砌体力学性能试验研究  

Experimental Study on Physical Mechanical Properties of Concrete Solid Brick with Glazed Hollow Bead and Mechanical Properties of Masonry

作　　者：陈瑜[1] 孙补[1] 

机构地区：[1]山西大学土木工程系,太原030013

出　　处：《混凝土与水泥制品》2014年第7期57-60,共4页China Concrete and Cement Products

摘　　要：采用玻化微珠作为主要轻细集料,与水泥、砂石、水拌制混凝土,通过正交试验选出最优配合比方案,制作成承重砖进行了各项物理力学性能试验及砌体力学性能试验。结果表明,其各项物理力学性能均符合混凝土实心砖的技术要求,同时该砖具有轻质、保温等特性,对提高建筑节能具有重要意义。砌体力学性能试验结果中,砌体轴心抗压强度计算值与规范中混凝土砌块相近,为了更好的拟合,对α给出了建议值;抗剪强度计算值略小于实测平均值,符合规范要求。The concrete is prepared by using the glazed hollow bead selected as the main fine aggregate, cement, gravel,water and so on. Some tests of the physical and mechanical properties and masonry mechanical properties on the load-bearing bricks made using the optimal mixing proportion got by the orthogonal experiment are carried out. The results show that all the physical and mechanical properties can conform to the technical requirements of the solid concrete brick, meanwhile, the birick has the features such as lightweight and thermal insulation, which is a great significance for improving building energy saving. The results of masonry mechanical properties test indicate that the calculation value of masonry axial compressive strength is closed to the calculated value of concrete block in specification. In order to get the better fitting, the suggestive value of α is given. The calculation value of shear strength is slightly smaller than the average of measuring value, and it conforms to the requirements of the soeeification.

关 键 词：玻化微珠 承重砖物理力学性能 砌体力学性能 建筑节能 

分 类 号：TU522.1[建筑科学—建筑技术科学]