机制砂特性及其对混凝土性能影响的研究进展

摘要/Abstract

摘要： 随着天然砂开采的受限,机制砂的使用成为必然趋势。机制砂与天然砂的成砂过程差别较大,导致二者性能有着显著差异,这些差异影响了机制砂混凝土的性能。为了推进机制砂的应用,使制备的机制砂混凝土工作性能和力学性能满足应用要求,本文从机制砂的制备方法、颗粒特性及混凝土配合比对混凝土性能的影响展开分析,系统地总结了机制砂母岩岩性、石粉含量、颗粒形貌、级配以及混凝土配合比等对机制砂混凝土性能的影响,提出了现有研究的局限性以及亟待解决的问题,为后续研究提供参考。

关键词: 机制砂, 石粉, 岩性, 颗粒形貌, 级配, 配合比

Abstract: With the restriction on natural sand mining, the use of manufactured sand has become an inevitable trend. Due to the significant differences in the formation processes of manufactured sand and natural sand, there are notable differences in their properties, which also affect the performance of manufactured sand concrete. In order to promote the application of manufactured sand and ensure that the workability and mechanical properties of manufactured sand concrete meet the required standards, this paper analyzes the influences of preparation method and particle characteristics of manufactured sand and proportion of concrete on the performance of concrete. The influences of manufactured sand parent rock lithology, stone powder content, particle morphology, gradation, and proportion of concrete on manufactured sand concrete are systematically summarized. Additionally, the limitations of existing research and the problems that need to be addressed are discussed to provide a reference for future research.

Key words: manufactured sand, stone powder, lithology, particle morphology, gradation, proportion

中图分类号:

TU528

朱洪洲, 杜俊池, 陈祥, 杨耸, 谭祺琦. 机制砂特性及其对混凝土性能影响的研究进展[J]. 硅酸盐通报, 2024, 43(11): 3911-3922.

ZHU Hongzhou, DU Junchi, CHEN Xiang, YANG Song, TAN Qiqi. Research Progress on Characteristics of Manufactured Sand and Its Influence on Concrete Performance[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(11): 3911-3922.

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