摘要
采用目前国内普通优质水泥(比表面积为300～350m2/kg),替代欧洲标准的超细水泥(比表面积为500～600m2/kg),使高速铁路以及客运专线使用的混凝土早期强度在16h内达到了48MPa,达到了引进产品的要求,混凝土的后期强度、耐久性等指标优于用超细水泥做原材料的混凝土。
The adoption of present domestic good-quality portland cement(whose specific surface area is 300~350 m2/kg),in place of European standard superfine cement(whose specific surface area is 500~600 m2/kg),achieves the result that the early age strength of the concrete reaches 48 MPa within 16 hours in high-speed railway and PDL.This reaches the requirements of the introduced products,the index of this concrete such as the later age strength and the durability are superior to those of the concrete with the super...
出处
《铁道建筑技术》
2009年第3期66-69,共4页
Railway Construction Technology
关键词
客运专线
高速铁路
轨道板
高速岔枕
新型混凝土
passenger dedicated line
high-speed railway
track slab
high-speed turnout sleeper
new concrete
