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通过研究石膏种类和掺量、水泥比例、早强剂种类、缓凝剂种类和掺量、胶粉掺量的影响,制备出可以同时满足凝结时间(初、终凝时间分别为60、70 min)、流动度(初始和30 min流动度分别为360、305 mm)和2 h抗压强度(23.1 MPa)要求的道路用快硬聚合物修补砂浆。
Through the study of the type and content of gypsum, the proportion of cement, the type of early strength agent, the type and content of retarder and the content of plastic powder, the preparation method can meet the requirement of setting time (initial and final setting time are 60 and 70 min ), Flowability (360,305 mm for initial and 30 min flow rates), and 2 h compressive strength (23.1 MPa) were used to repair the mortar with fast hardening polymer.