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采用偏高岭土、粉煤灰和矿粉3种原材料,5个养护龄期和3种养护温度制备地聚合物-碱废渣复合胶凝材料。采用多元回归和因素分析研究了养护龄期、温度、氧化钙与氧化硅的摩尔比及其交互作用对地聚合物-碱废渣复合胶凝材料抗压强度的贡献大小。结果表明:养护温度对该体系抗压强度的贡献率最大,达到了44%左右;氧化钙与氧化硅的摩尔比的贡献次之,大约为27%;养护龄期的贡献最小,为17%左右;养护温度和氧化钙与氧化硅摩尔比之间的交互作用达到了8%。建立了基于线性回归分析的数学模型。
Three kinds of raw materials, such as metakaolin, fly ash and slag, five curing age and three kinds of curing temperature, were used to prepare polymer - alkali waste composite cementitious material. Multivariate regression and factor analysis were used to study the conservation age, temperature, molar ratio of calcium oxide to silicon oxide and their contribution to the compressive strength of geopolymer-alkali waste composite cementitious materials. The results showed that the curing temperature had the largest contribution to the compressive strength of the system, reaching about 44%; the contribution of the molar ratio of calcium oxide to silicon oxide was second, about 27%; the contribution of curing age was the smallest, 17% ; The interaction between curing temperature and calcium oxide to silica molar ratio reached 8%. A mathematical model based on linear regression analysis was established.