可注超细粉煤灰水泥砂浆正交试验研究

发布时间：2018-03-31 19:36

本文选题：超细粉煤灰　切入点：水玻璃　出处：《科学技术与工程》2017年05期

【摘要】：水泥中掺入超细粉煤灰和水玻璃,与水泥组成成分发生水化物反应,促使水泥浆材强度发展;同时粉煤灰还保持了水泥活性,易于流动。针对水泥浆材在充填工程中的应用,采用正交试验研究了不同养护龄期下超细粉煤灰掺量、水玻璃掺量及水灰比3个因素对水泥浆材的抗压强度影响。分析了各因素之间差异,根据功效系数,判断出最佳配制方案。试验结果表明,超细粉煤灰的掺量对砂浆的强度影响不大,但可以改善水泥砂浆的流动性和黏聚性;水玻璃的含量对强度的影响要优于超细粉煤灰;一定条件下,水灰比越小,水泥浆液强度越高。研究成果可于注浆工程中广泛应用。
[Abstract]:When superfine fly ash and water glass are added into cement, hydrates react with the composition of cement to promote the strength development of cement paste, and fly ash also keeps cement activity and is easy to flow.Aiming at the application of cement paste in filling engineering, orthogonal test was used to study the effect of three factors on compressive strength of cement paste under different curing age, such as the amount of superfine fly ash, the amount of water glass and the ratio of water to cement.The differences among the factors were analyzed and the optimal formulation scheme was determined according to the efficiency coefficient.The results show that the content of ultrafine fly ash has little effect on the strength of mortar, but it can improve the fluidity and cohesion of cement mortar, the effect of water glass content on strength is better than that of superfine fly ash, and the ratio of water to cement is smaller under certain conditions.The higher the strength of cement slurry.The research results can be widely used in grouting engineering.
【作者单位】：安徽理工大学土木建筑学院;
【基金】：国家安全监管总局安全生产重大事故防治关键技术科技项目(Anhui-0003-2016AQ) 安徽省高校自然科学重大项目(KJ2015ZD20) 矿山地下工程教育部工程研究中心开放基金课题(2015KF05)资助
【分类号】：TQ177.62

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