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CMN外加剂是具有多种性能的混凝土外加剂。它可以使常温施工的混凝土早强,由于它具有减水作用,故在水灰比不变的情况下,可以提高混凝土的和易性、流动度,给施工带来很大方便;它还具有抗冻害作用,在正负温度交变的情况下,可以提高混凝土的强度和抗冻害能力。近年来,CMN外加剂在工业建筑、民用建筑(包括高层建筑)的现浇混凝土和预制混凝土构件中均已得到广泛应用。
The CMN admixture is a concrete admixture with various properties. It can make the concrete at room temperature early strength, because it has a water-reducing effect, so in the case of the same water-cement ratio, it can increase the workability and fluidity of the concrete, and bring great convenience to the construction; it also has The anti-freezing effect can increase the strength and anti-freeze damage of concrete under the condition of alternating positive and negative temperatures. In recent years, CMN admixtures have been widely used in cast-in-place concrete and precast concrete structures in industrial buildings and civil buildings (including high-rise buildings).