日本三共化成工业公司研制成功可以控制混凝土粘稠性的新型水下混凝土用外加剂(商品名)。该外加剂加到水中浇灌的混凝土中,可以控制其粘稠性和流动性,因而可以防止混凝土中的水泥逸散,避免了混凝土质量降低和周围水质污染。同时该外加剂对水泥的水化反应无不良 Japan Sankyo Chemical Industry Co., Ltd. has successfully developed a new underwater concrete admixture (trade name) that can control the viscous nature of concrete. The admixture is added to concrete poured in water to control its viscosity and fluidity, thereby preventing the cement from escaping in the concrete and reducing the quality of the concrete and the surrounding water pollution. At the same time, the admixture has no adverse effect on the hydration reaction of the cement