- 目录
- 混凝土与制品
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C100机制砂超高强高性能混凝土隧道衬砌管片的研制
作者：王勇
（贵州省建筑材料科学研究设计院有限责任公司，贵州 贵阳 550002）
摘要：利用机制砂配制C100超高强高性能混凝土隧道衬砌管片，通过对隧道衬砌管片混凝土的原材料进行优选，并进行混凝土配合比优化设计，成功研制出28 d抗压强度达到130 MPa机制砂超高强高性能混凝土隧道衬砌管片，将衬砌管片厚度减薄80 mm后，其各项性能指标符合隧道预制混凝土衬砌管片质量要求。该研究成果可大幅度节约隧道衬砌管片混凝土用量、延长衬砌管片的使用寿命，对促进可持续发展和高质量具有重要意义。
关键词：C100；机制砂；超高强；高性能混凝土；隧道衬砌管片
中图分类号：TU528.31 文献标识码：A 文章编号：1001-702X（2021）02-0062-04
Study on C100 machine sand super high strength and high performance concrete tunnel lining segments
WANG Yong
（Guizhou Construction Materials Science Research Design Institute Co. Ltd.，Guiyang 550002，China）
Abstract：This article introduces the study of using machine-made sand to prepare C100 super high-strength high-performance concrete tunnel lining segments. By optimizing the raw materials of tunnel lining segment concrete and optimizing the concrete mix design，the 130 MPa super-machined sand high-performance concrete has been successfully developed for tunnel lining segments，after the thickness of the lining segments is reduced by 80 mm，its performance indicators meet the quality requirements of tunnel precast concrete lining segments. The research results can greatly save the concrete consumption of tunnel lining segments and prolong the service life of lining segments. It is of great significance to promote sustainable development and high quality.
Key words：C100，machine sand，super high strength，high performance concrete，tunnel lining segment