长江科学院院报 ›› 2021, Vol. 38 ›› Issue (10): 148-155.DOI: 10.11988/ckyyb.20210540

• 水工结构与材料 • 上一篇    下一篇

水工混凝土矿物掺和料的开发与应用研究综述

石妍, 李家正, 董芸, 周世华, 林育强, 陈霞   

  1. 水利部水工程安全与病害防治工程技术研究中心,武汉 430010
  • 收稿日期:2021-06-04 修回日期:2021-07-09 出版日期:2021-10-01 发布日期:2021-10-15
  • 作者简介:石 妍(1979- ),女,河南新乡人,正高级工程师,博士,主要从事水工建筑材料研究。E-mail:18163559730@163.com
  • 基金资助:
    国家自然科学基金项目(U2040222,51979011);中央级公益性科研院所基本科研业务费项目(CKSF2019374/CL,CKSF2019183/CL)

Review of Development and Application of Mineral Admixtures for Hydraulic Concrete

SHI Yan, LI Jia-zheng, DONG Yun, ZHOU Shi-hua, LIN Yu-qiang, CHEN Xia   

  1. Research Center of Water Engineering Safety and Disaster Prevention of Ministry of Water Resources, Wuhan 430010, China
  • Received:2021-06-04 Revised:2021-07-09 Online:2021-10-01 Published:2021-10-15

摘要: 历经六十余载,长江科学院材料与结构研究所对水工混凝土矿物掺和料开发与应用进行了系统的研究。首次将优质粉煤灰规模化应用于三峡工程,并开发了用于水工混凝土的磷渣粉、石灰石粉、天然火山灰等新型矿物掺和料,掌握了其影响混凝土的性能规律,编制了系列技术标准,形成了水工大体积混凝土矿物掺和料应用技术体系。部分研究成果在我国大中型水利水电工程中得到成功应用,是水利水电工程建设、混凝土矿物掺和料选择的主要依据之一。对部分研究内容进行简要介绍,包括水工混凝土矿物掺和料的分类、不同胶凝体系的水化机理、对水工混凝土性能影响以及配合比设计、施工工艺等,梳理相关科研成果,旨在推动新型矿物掺和料在大中型水利水电工程中的应用,拓展水工混凝土掺和料品种与范围,为水利水电工程混凝土的设计提供重要的理论依据,提高我国筑坝技术水平、促进水工材料学科发展。

关键词: 矿物掺和料, 水利水电工程, 水工混凝土, 开发与应用, 配合比设计

Abstract: For over six decades, the material and structure department of Changjiang (Yangtze) River Scientific Research Institute has carried out systematic research on the development and application of mineral admixtures for hydraulic concrete, and applied high-quality fly ash to the construction of Three Gorges Project at large scale for the first time. We studied the impacts of new mineral admixtures such as phosphorous slag powder, limestone powder, natural pozzolan, etc. on the performance of hydraulic concrete. Our laboratory established a series of technical standards as well as a corresponding application technology system. Parts of the research achievements have been successfully applied in large and medium-sized water conservancy and hydropower projects, and are regarded as major basis for the selection of hydraulic concrete mineral admixture. In this paper we briefly introduce the research contents including the classification of hydraulic concrete mineral admixtures, the hydration mechanism of different cementing systems, the impact on the performance of hydraulic concrete, the design of mix proportion, and the construction techniques. We further sort related research results in the aim of promoting the development and application of new mineral admixtures in water conservancy and hydropower projects, providing important theoretical support for the design of hydraulic concrete, and improving the dam construction technology and development of hydraulic materials in China.

Key words: mineral admixture, water conservancy and hydropower projects, hydraulic concrete, development and application, design of mix proportion

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