胡传林, 李宗津, 王发洲. 混凝土微观力学基础研究进展及应用展望[J]. 工程力学, 2021, 38(4): 1-7, 92. DOI: 10.6052/j.issn.1000-4750.2020.08.ST09
引用本文: 胡传林, 李宗津, 王发洲. 混凝土微观力学基础研究进展及应用展望[J]. 工程力学, 2021, 38(4): 1-7, 92. DOI: 10.6052/j.issn.1000-4750.2020.08.ST09
HU Chuan-lin, LI Zong-jin, WANG Fa-zhou. PROGRESS AND APPLICATION PROSPECT OF FUNDAMENTAL RESEARCH ON CONCRETE MICROMECHANICS[J]. Engineering Mechanics, 2021, 38(4): 1-7, 92. DOI: 10.6052/j.issn.1000-4750.2020.08.ST09
Citation: HU Chuan-lin, LI Zong-jin, WANG Fa-zhou. PROGRESS AND APPLICATION PROSPECT OF FUNDAMENTAL RESEARCH ON CONCRETE MICROMECHANICS[J]. Engineering Mechanics, 2021, 38(4): 1-7, 92. DOI: 10.6052/j.issn.1000-4750.2020.08.ST09

混凝土微观力学基础研究进展及应用展望

PROGRESS AND APPLICATION PROSPECT OF FUNDAMENTAL RESEARCH ON CONCRETE MICROMECHANICS

  • 摘要: 混凝土是现代土木工程建设的基础和关键结构材料,现代工程建设的发展对混凝土性能提出新的挑战。水化硅酸钙(C-S-H)是水泥水化最重要的产物(约占水化产物的70%),也是混凝土中最重要的胶结性物质,起到胶结砂石骨料、发挥强度的关键作用。在微观尺度上,C-S-H是一种多孔介质材料,组成结构十分复杂。因此,对C-S-H微观力学性能进行解析和设计,是认识和提高水泥基材料宏观力学性能的关键,同时也是混凝土研究领域的基础科学问题。该文旨在介绍混凝土微观力学性能表征方法、混凝土微观力学计算理论以及其在混凝土应用过程的新发现,同时展望混凝土微观力学在工程建设中的应用。

     

    Abstract: Concrete is a fundamental and key structural material for modern civil engineering construction. The development of modern engineering construction poses new challenges to the performance of concrete. Calcium-silicate-hydrate (C-S-H) is the most important product of cement hydration, which occupies about 70% of the hydration products. It is also the most important cementitious material in concrete. C-S-H plays a key role in cementing sands and coarse aggregates, and exerting the strength. At the microscale, C-S-H is a porous material with a complex microstructure. Therefore, the analysis and design of C-S-H micromechanical properties is essential for understanding and improving the macroscale mechanical properties of cement-based materials. It is also a fundamental scientific problem in the field of concrete research. This paper aims to introduce the micromechanical characterization method of concrete, the micromechanical theory of concrete, and the new findings obtained from the applications of micromechanics into concrete, and to forecast the application of concrete micromechanics in engineering construction.

     

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