近年来,在美国和世界其他地方由于过早拆模或过早让结构物负载而发生了不少混凝土施工事故,因此,有必要建立新的试验方法,应用目前现有的技术确保新浇混凝土在拆模时已获得足够的早期强度。 过去,施工人员是根据现场同条件养护的 In recent years, many concrete construction accidents have occurred in the United States and elsewhere in the world due to premature demolition or premature structural load, so it is necessary to establish new test methods and to use the existing technology to ensure that newly poured concrete Adequate early strength has been obtained at the time of demolding. In the past, construction workers were cured under the same conditions on site