目前,一些国家以及我国的混凝土科技工作者已经在快速测定混凝土强度方面提出不少新方法,多数是以增加养护温度、提高介质压力的途径,来加速混凝土的硬化。但普遍存在耗时较长的不足,仍难以指导施工实践。苏联学者最近研制成一种新方法,利用化学手段快速地测出新拌混凝土拌合物内的真正水灰比,从而预测混凝土硬化28天后的 At present, some countries and our country’s concrete science and technology workers have put forward many new methods in the rapid determination of concrete strength, most of which are to increase the curing temperature and increase the pressure of the medium to accelerate the hardening of the concrete. However, deficiencies that often take a long time are common and it is still difficult to guide construction practice. Soviet scholars have recently developed a new method that uses chemical means to quickly measure the true water-cement ratio in fresh concrete mixes to predict the hardening of concrete 28 days later.