摘要
目前,混凝土已应用于高层建筑、大跨度桥梁、海洋开发等土木、建筑工程。随着新结构、新工艺的发展,要求混凝土具有降低水化热、大流动度、早强、高强、抗渗、抗裂、轻质和高耐久性等不同需求的性能。普通混凝土在某些方面已不能满足要求。这就要求对混凝土作出更加有效地改善。现今混凝土中除了4种必备材料之外,外加剂也成为其中必不可少的第5种材料,浅要介绍不同的外加剂和掺和料对混凝土性能的改善的作用机理。
At present,concrete has been used in high-rise buildings,long-span Bridges,Marine development and other civil and construction projects. With the development of new structure and new technology,concrete is required to have the properties of reducing hydration heat,large fluidity,early strength,high strength,impermeability,crack resistance,light quality and high durability. Ordinary concrete has failed to meet the requirements in some respects. This requires more effective improvement in concrete. Now in addition to the four essential material in the concrete,and the fifth way that the additive has become an essential material,this article shallow to introduce different admixture and the admixture of concrete to improve the performance of the mechanism of action.
出处
《施工技术》
CAS
2018年第S1期1469-1471,共3页
Construction Technology
关键词
混凝土
外加剂
掺和料
作用原理
性能
concrete
admixture
additie
principle of action
properties
