对炉渣及建筑垃圾作为细集料取代天然河砂，通过压制成型的方法制备水泥基材料进行研究，探索了在建筑垃圾掺量固定的前提下，同时掺加炉渣对水泥基材料强度、吸水率及抗冻融性能的影响规律。研究结果表明：在建筑垃圾取代40%天然河砂的前提下，水泥基材料的强度随天然河砂被炉渣取代量的逐渐增加先增大后减小，吸水率则呈逐渐增大的变化趋势；在抗冻融性方面，在一定掺量范围内，炉渣、建筑垃圾复掺制备的水泥基材料满足《普通混凝土长期性能和耐久性能实验方法标准》中D25抗冻等级指标要求。并对其机理进行分析。%According to the search of the slag and construction waste as a recycled fine aggregate instead of natural river sand,cement-base material was prepared by using the method of pressure molding.Then under the premise of fixed dosage of construction waste,at the same time adding slag,the strength,water absorption and freeze-thaw cycle resistance of the cement-base material were researched.The results show that the strength of the cement base material, with the increase of the slag dosage first increases then decreases on the premise of construction waste to replace 40%of the natural river sand,and the water absorption shows a trend of increase gradually changes;the freeze-thaw cycle re-sistance of slag and construction waste cement-based materials meet D25 frost resisting class indication in《Standard for test methods of long-term performance and durability of ordinary concrete》.And its mechanism is analyzed.
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