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压浆液一定的力学强度是后张法预应力孔道压浆的先决质量保证,然而在进行浆液强度试验时试件破裂往往不规则,结果离散较大且平行超差,不能有效地评定出一组试件的强度。文中根据依托工程,通过孔道压浆试件与水泥胶砂试件的对比试验,运用力学模型分析和微观结构分析的方法,对试件的破坏过程和结果进行分析,得出用于评定水泥胶砂强度的标准不适用于评定孔道压浆液强度,应探寻其他方法来评定孔道压浆液强度。
The mechanical strength of grouting fluid is the prerequisite of post-tensioning pre-stressing grouting. However, the specimen rupture tends to be irregular when the slurry strength test is carried out. The result is large and parallel, and can not be effectively evaluated. The strength of the specimen. According to the relying on the project, through the contrast test of pore pressure grouting specimen and cement mortar specimen, using the mechanical model analysis and the microstructure analysis method, the destruction process and the result of the specimen are analyzed, Sand strength standards are not suitable for assessing the strength of porthole grouts and other methods should be explored to assess porthole grouting strength.