摘要
通过精心组合、科学设计、系统试验研制出了适宜青藏高原负温高性能混凝土使用的QW型系列复合高效外加剂 ,该外加剂主要从改善混凝土结构方面取得负温抗冻及负温强度增长的效果 ,与传统抗冻剂相比较 ,它既可以提高早期强度 ,又不影响混凝土的后期强度 ,并对混凝土和易性、耐久性 。
Combining meticulously, designing scientificly and making experiments completely,we develop QW series of composite high-efficiency additive,which fits the minus temperature high-performance concrete in the special environment of Qinghai-Tibet plateau.The additive can be mainly used to improve the structure of concrete and produce effections of minus temperature antifreezing and its strengthening increase.Compared to the traditional antifreeze,it can not only enhance the early strength,but also not influence the long-term strength of concrete furthermore ,it can remarkably improve the peaceability and endurance of concrete.
出处
《兰州铁道学院学报》
2002年第3期30-32,共3页
Journal of Lanzhou Railway University
