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试验研究了JM-Ⅱ泵送剂用于三峡永久船闸输水系统泵送砼中的各项性能。结果表明,应用JM-Ⅱ泵送剂能使砼获得较好的施工性和强度,并大大降低砼的早期水化热,有效推迟水化放热最高峰出现的时间,显著提高砼的抗冻、抗渗等耐久性能。
Experimental study of the JM-Ⅱ pumping agent used in the Three Gorges Permanent Ship Lock water delivery system pumping concrete performance. The results show that the application of JM-Ⅱ pumping agent can get good concrete construction and strength, and greatly reduce the early hydration heat of concrete, effectively postponed the onset of hydration peak temperature significantly increased the concrete antifreeze , Impermeability and other durability.