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通过正交试验研究聚合物改性水泥砂浆的力学性能.考察了水胶比(A)、聚胶比(B)、砂胶比(C)及集灰比(D)四个因素,每个因素四个水平,采用L_(16)(4~5)正交表进行试验安排.研究发现,各因素对不同力学性能指标影响显著程度的排序不尽相同,且重复试验方差分析所对应的因素显著程度高于无重复试验;重复试验的方差分析表明:砂胶比(C)及集灰比(D)是影响抗折强度显著因素;聚胶比(B)及集灰比(D)是影响抗压强度的显著因素.
The mechanical properties of polymer-modified cement mortar were studied by orthogonal test.The factors of water-binder ratio (A), polymer binder ratio (B), cement ratio (C) and ash concentration ratio Four levels of factors, using L_ (16) (4 ~ 5) orthogonal test table arrangement.The study found that the various factors on the different mechanical properties of indicators of the degree of significance of the order is not the same, and repeated trial analysis of variance corresponding to the factors The results of repeated tests showed that the ratio of mortar to cement (C) and ash concentration (D) were significant factors affecting the flexural strength. Significant factors affecting compressive strength.