nmca meaning in English

日本二轮车协会

The study on salc includes : 1 ) the study on the harmonization between aeration rate and melts thickly rate ; 2 ) the study and application of the new multi - function composite additive ( nmca ) ; 3 ) the study on the durability of salc ; 4 ) the designation of the structure of new multi - functional unbearing compound wall and fast equipment mold , etc . the results show : the additive can improve the harmonization of the workability and mechanics characteristic of salc to a certain extent ; improve the volume stability of salc under different environment by enhancing the resistance to the freeze and thaw , dry and wet circle and drying shrinkage
在salc的研究方面，主要包括发气速度和稠化速度的协调性研究、新型多功能复合外加剂的研制、耐久性能的研究以及新型多功能非承重复合墙体结构及其浇注成型的快速组装模具设计等内容；结果表明：科学合理的引入辅助外加剂在一定程度上使salc材料的工作性及相应物理力学性能得以最佳匹配，增强了salc材料对冻融循环、干湿循环及干燥收缩的抵抗能力，使salc在不同的环境下均具有较好的体积稳定性。