高性能再生混凝土基本力学性能研究  

EXPERIMENTAL STUDY ON THE BASIC MECHANICAL BEHAVIOR OF PLAIN RECYCLED HIGH-PERFORMANCE CONCRETE

作　　者：凌立[1] 陈勇[2] 张学生[3] 滕长禧 

机构地区：[1]辽宁工程技术大学科技产业处,辽宁阜新123000 [2]黑龙江科技学院建筑工程学院,哈尔滨150045 [3]北京城建国际建设有限公司,北京100102 [4]大连筑成建设集团有限公司,辽宁大连116000

出　　处：《低温建筑技术》2009年第10期16-18,共3页Low Temperature Architecture Technology

摘　　要：对高性能天然和再生骨料混凝土进行了基本力学性能试验,测得了其立方体抗压强度、棱柱体轴心抗压强度、抗拉强度、弹性模量。试验结果表明:高性能再生骨料混凝土的上述四个力学性能指标数值均小于天然的,而且抗拉强度和弹性模量降低幅度更大;随强度等级提高,棱柱体轴心抗压强度和抗拉强度与立方体抗压强度之比却是逐渐增大,其脆性也就越大。建立了高性能混凝土与高性能再生混凝土弹性模量与立方体抗压强度之间的公式。The tests were performed about the basic mechanical behavior of plain natural （recycled） high-performance concrete （NHPC and RHPC）. The cubic and axial compressive strength, the tensile strength and elastic modulus were measured. The experimental results show that the four mechanical behavior indexes in the above mentioned for RHPC are evidently lower than that of HPNAC, especially the tensile strength and elastic modulus. With the concrete＇s strength enhanced, the ratios between the axial compressive strength,the tensile strength and the cubic compressive strength are increased gradually so that its brittleness is much larger. The formulas between elastic modulus and cubic compressive strength for plain NHPC and RHPC are proposed.

关 键 词：高性能再生混凝土 混凝土强度指标 弹性模量 

分 类 号：TU528.31[建筑科学—建筑技术科学]