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一、基础和主体结构通病1.砂浆、混凝土配合比计量不准,强度离差大或强度达不到设计要求防治:搅拌站设专人负责,严格执行计量配料。浇筑设专人振捣密实,浇筑后及时进行覆盖养护,常温下适时浇水,确保养护期间混凝土表面湿润。冬期混凝土施工必须制定可靠的冬施措施,提倡采用综合蓄热法施工。重点抓好外加剂掺用、混凝土出机温度、入模温度和成型后的覆盖保温。
First, the basic and the main structure of a common problem 1. The mortar, concrete mix ratio measurement is not allowed, the intensity of the large or the intensity of the design requirements can not meet prevention and control: mixing station is responsible for the person responsible for strict measurement of ingredients. The placement and placement of persons should be vibrated densely and compacted, timely covered and cured after pouring, and timely watered at room temperature to ensure that the concrete surface is moist during curing. Winter concrete construction must develop reliable winter measures, and promote the use of integrated thermal storage method. Focus on the admixture of admixtures, the temperature of the concrete exit, the temperature of the mold, and the insulation of the cover after molding.