混凝土减水剂、防冻剂的研制该项成果属于混凝土外加剂的研制，是由我院建筑研究所完成的。所研制的减水剂集缓凝、早强、减水于一体，具有掺量低的优点，最大掺量为水泥用量的０．５％；防冻剂集减水、早强、防冻、低掺量于一体，最大掺量为水泥用量的１％，对钢筋无锈蚀... Development of concrete water-reducing agent and anti-freeze agent This achievement belongs to the development of concrete admixtures and was completed by the Institute of Architecture of our institute. The water-reducing agent developed has the advantages of retardation, early strength, and water reduction, and has the advantage of low dosage. The maximum dosage is 0.5% of the cement dosage; antifreeze sets are water-reducing, early-strength, antifreeze, and low-doping. In one, the largest dosage is 1% of the amount of cement, no corrosion to the steel...