【摘要】 利用脱硫石膏作为基本材料,通过加入活性掺合料、碱性激发剂、促凝剂、减水剂、保水剂和乳胶粉等进行复合改性,配制成一种自流平材料。该自流平材料的绝干抗折和抗压强度分别达到6.8 MPa和29.2 MPa,软化系数0.82,所测性能指标均优于JC/T985—2005《地面用水泥基自流平砂浆》和JC/T 1023—2007《石膏基自流平砂浆》的要求。用脱硫石膏配制自流平材料可实现废物利用,具有良好的社会效益和市场前景。更多还原

【Abstract】 A kind of self-leveling material was prepared by utilizing FGD gypsum as basic material,and being modified by active aggregate,alkaline activator,accelerator,water reducing agent,water retention agent and water-resistant powder.The absolute dry tensile and compressive strength of obtained self-leveling material reached to 6.8 MPa and 29.2 MPa respectively and the softening coefficient was up to 0.82.All the measured properties are superior to the requirements given in standard JC/T 985—2005 "Cementitious Self-leveling Floor Mortar" and JC/T 1023—2007 "Gypsum Based Self-leveling Floor Compound".The preparation of self-leveling material with FGD gypsum can realize recovery usage of waste,and has good social and market prospects.更多还原