无熟料垃圾底灰胶凝材料研制

摘要

以垃圾底灰、粉煤灰、矿渣及脱硫石膏为主要原料,外掺少量复合激发剂,配制出力学性能符合32.5普通水泥要求的无熟料胶凝材料.首先对固体废渣的潜在活性进行测试,选取适合的激发剂配比进行试探性选择,再通过两组正交试验确定各材料对强度性能的影响,从而初步确定配合比.根据物理力学性质确定最终配合比,并且进一步研究了该配合比下的无熟料垃圾底灰胶凝材料的耐久性和环境安全性.%This study uses bottom ashes of solid waste,fly ash,slag and FGD gypsum as the main raw materials with addition of a small amount of compound activator to prepare cementitious materials with no clinker whose mechanical properties meets the requirements of 32.5 portland cement.The potential activities of solid wastes are tested,the proper activator for tentative choice selected,and the effect of those materials on strength properties determined with two sets of orthogonal tests,so as to preliminarily determine the mixture ratio.The final mixture ratio are determined according to the physical and mechanical properties.Durability and environmental safety of the clinker-free cementitious material under the final mixture ratio were studied.