砌体材料强度非破损检测方法的验证性试验

Verification Experiments on Non-destructive Test for Masonry Material Strength

通过试验,对比研究了同盘砂浆钢底模与砖底模试块抗压强度的差异、贯入法检测试块与砌体灰缝砂浆强度的差异,分析了养护条件、约束条件以及砌筑质量等因素对贯入法检测砂浆强度的影响。通过试验验证了贯入法检测砌筑砂浆强度以及回弹法检测烧结普通砖强度的适用性,对适用的测强曲线和检测条件等提出了建议。

Based on experiments, the difference of cube compressive strength between blocks with steel bottom model and brick bottom model was compared. Disparity of mortar strength, which was tested by penetration method, between mortar blocks and mortar joints was discussed. The influence of maintenance condition, constraint condition and laying quality on mortar strength was analyzed. Applicability of the method of mortar penetration and the method of fired brick rebound was verified. The advices for strength curve and inspection condition were presented.