抹灰砂浆现场拉伸粘结强度试验方法

Test method of site tensile-bond strength for plasting mortar

提出了抹灰砂浆拉伸粘结强度的要求,规定大面积施工前应在实地制作样板,在规定龄期进行试验,当抹灰砂浆拉伸粘结强度值满足要求后,方可进行抹灰施工。抹灰工程完工后,在现场进行抹灰砂浆拉伸粘结强度检测,龄期一般为抹灰层施工完后28d进行。并对抹灰砂浆现场拉伸粘结强度试验方法的不足提出改进建议。

The requirement of tensile bond strength of plastering mortar is put forward.It is stipulated that samples should be made on the spot before large-scale construction, and tests should be carried out at the specified age.Only when the tensile bond strength of plastering mortar meets the requirement can plastering be carried out.After the plastering project is completed, the tensile bond strength of plastering mortar is tested on the spot. The age of plastering mortar is usually 28 days after the construction of plastering layer.The shortcomings of the site tensile-bond strength test method for plastering mortar are also improved.