高强混凝土空心砌块砌体的性能

Properties of High-Strength Concrete Small-Sized Hollow Block Masonry

对 8 4个高强混凝土空心砌块砌体的受压性能进行了试验研究·发现采用砌块强度≥MU15 ,砂浆强度≥M 10的砌体试件进行受压试验 ,利用砌体结构设计规范中的相关公式计算高强混凝土砌块砌体的抗压强度偏高 ,弹性模量偏小 ,不安全·说明规范公式已不适用于高强混凝土砌块砌体力学指标的计算·为此提出了计算高强混凝土砌块砌体力学性能指标的建议公式 ,经试验验证 ,计算值与试验结果符合得较好 ,且偏于安全·

specimens of high strength small sized hellow concrete block masenry were tested,when the masonry specimens(block strength≥MU15,Mortar strength≥M10)were in compressively loaded test,it was found that the compressive strength calculated according to the relative formula in code for Masonry Design is higher and the modulus of elasticity is lower than the test results,it shows that the formulas in the code is not fit for the calculation of mechanical properties for high strength concrete block masonry. New formulas for compressive strength and modulus of elasticity were presented,compared with the test results,the calculation values match well and intend to be save.