摘要
对中高层钢结构建筑楼顶板所需要的泵送轻骨料混凝土进行了优化配比研究,对已有轻骨料混凝土配比在运用过程中的特点及不足进行了分析。从优选原材料入手,对本工程混凝土配合比进行了设计及优化,得到了低密度泵送轻骨料混凝土。试验结果表明,此配比下的轻骨料混凝土力学性能、体积稳定性等均满足规范和工程要求。研究成果为同类建筑结构、大跨径桥梁建设的泵送轻骨料混凝土及要求减轻结构自重的工程提供了参考。
The mix ratio of pumping light weight aggregate concrete needed for middle and high rise steel structure building roof board is studied. The characteristics and deficiencies of the existing light weight aggregate concrete in the application process are analyzed, according to the optimization of raw materials, the design and optimization of concrete mix ratio of this project was carried out, finally the low density pumping light weight aggregate concrete was prepared. The results show that the mechanical properties and the volume stability of lightweight aggregate concrete under this ratio meet the requirements of the specification and the engineering need. The research results provide an important choice for the construction of similar structures and large span bridges, the pumping light aggregate concrete and the requirement of reducing the weight of the structure.
出处
《混凝土与水泥制品》
2016年第10期56-61,共6页
China Concrete and Cement Products
基金
北京市自然科学基金项目(8142012)
北京建筑大学科学研究基金项目(00331616027)
关键词
泵送轻骨料混凝土
配合比设计
干密度
优化分析
Pumping light weight aggregate concrete
Mix design
Dry density
Optimization analysis
