抗剪法检测预拌混凝土抗压强度试验研究

The study of the shear-resistance method to detect compressive strength of ready-mixed concrete

本文研究通过圆柱体小芯样剪切试验以及相应龄期的混凝土立方体试件力学性能试验,分别获得了小芯样抗剪强度和立方体试件抗压强度。试验结果表明:小芯样抗剪强度与混凝土立方体试件抗压强度存在显著的相关性;试验所建立的抗剪法测强曲线具有足够的检测精度,能够应用于预拌混凝土抗压强度的现场实体结构检测。研究结果可供工程质量检测与控制参考。

This test based on the shear experiment of small diameter cylinder cores and the mechanical properties experiment of cube specimens, the small core shear strength and cube specimens compression strength was obtained. The test results showed that the small core shear strength and cube specimens compression strength were signifi cant correlation, using the shear-resistance method to assess the compressive strength of concrete is higher accuracy. At the same time, the shear-resistance method strength curve is established, and it can be applied to the compressive strength of the entity structure which pumped with premixed concrete. The results of the study can be the reference for the engineering quality detection and control.