高强混凝土的制备及其力学性能分析

Preparation of high strength concrete and analysis of its mechanical properties

高性能混凝土(high performance concrete,HPC)具有高强度、高耐久性、高流动性等多方面的优越性能,是发展高层建筑、高耸结构、大跨度结构等重大工程项目的基础。通过标号为C80、C105和C125的PHC桩试验以及相同标号的混凝土试块试验,对比分析了高强度混凝土的轴心抗压强度、轴心抗拉强度以及弹性模量等力学性能。分析试验数据,并与《混凝土结构设计规范》GB50010-2010的理论外延值进行对比,得出C80以上超高强混凝土的经验计算值。

High performance concrete(HPC) has superior performance in high strength,high durability and high fluidity.It is the basis for the development of major projects such as high-rise buildings,high-rise structures and large-span structures.The mechanical properties of high-strength concrete such as axial compressive strength,axial tensile strength and elastic modulus were co MPared and analyzed by PHC pile tests with C80,C105 and C125 and concrete test block with the same number.The test data was analyzed and co MPared with the theoretical extension of the Code for Concrete Structure Design GB50010-2010,and the empirical calculation values of super high strength concrete above C80 were obtained.