Is specialized in producing all types of concreteadmixture of high-tech enterprises.
是专业生产各类型混凝土外加剂的高新技术企业。
2
This paper expounds mineral composition, physical and chemical characteristics, activity and its evaluation of natural volcanic ash which is used as concreteadmixture.
论述了天然火山灰用作混凝土掺合料的矿物组成、物化性能；火山灰活性及其评定。
3
Based on green chemistry and molecular design theory of concreteadmixture, the cleaner synthesis of novel grafted polymeric concrete slump retaining agent has been studied.