Effect of particle characteristics stress on the mechanical properties of cement mortar with coral sand
文献类型：期刊论文
| 作者 | Shen, Jianhua1; Xu, Dongsheng2; Liu, Zhuowen2; Wei, Houzhen1 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2020-11-10 |
| 卷号 | 260页码:10 |
| ISSN号 | 0950-0618 |
| 关键词 | Coral sand Crushing strength Uncertainty Mortar Unconfined compressive strength |
| DOI | 10.1016/j.conbuildmat.2020.119836 |
| 英文摘要 | The coral sand is widely used as a construction material in the world. The mechanical behavior of cement mortar made by coral sand would be quite different from that made by the Leighton Buzzard sand (LBS) due to the inherent properties of coral sand, such as large void ratio, irregular shape and particle breakage. The effect of particle size on the particle crushing stress and influence on the mechanical behavior of cement mortar are examined in this study. A series of single particle compression tests of coral sand particles were carried out. The results revealed that the characteristic stress of single particle for both coral sand and LBS decreased with the increasing of particle sizes. The exponent relationship between the average crushing characteristic stress and particle size was proposed. The crushing stresses of single particles were in a wide range which varied from 0.99 MPa to 38.25 MPa and 10.98 MPa to 89.41 MPa for coral sand and LBS, respectively. The uncertainly of the crushing stress for single particles was analyzed and considered as Gaussian distribution. A probability density function of characteristic crushing strengths for both coral sand and LBS particles were derived and further verified with experimental results. Finally, the cement mortar specimens with five different types of particle size distributions of coral sands were prepared and tested to investigate the effects of the particle characteristic stress on the compressive strength of the cement specimen. An exponent relationship between the compressive strength and the particle crushing strength was derived and proposed which could helpful for the concrete mix proportion design with coral sands. (C) 2020 Elsevier Ltd. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[41972271] ; National Natural Science Foundation of China[41772336] ; Fundamental Research Funds for the Central Universities WHUT (Wuhan University of Technology)[193106001] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000573809700003 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/24870]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Xu, Dongsheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Wuhan Univ Technol, Sch Civil Engn & Architecture, 122 Luoshi Rd, Wuhan 430070, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Jianhua,Xu, Dongsheng,Liu, Zhuowen,et al. Effect of particle characteristics stress on the mechanical properties of cement mortar with coral sand[J]. CONSTRUCTION AND BUILDING MATERIALS,2020,260:10. |
| APA | Shen, Jianhua,Xu, Dongsheng,Liu, Zhuowen,&Wei, Houzhen.(2020).Effect of particle characteristics stress on the mechanical properties of cement mortar with coral sand.CONSTRUCTION AND BUILDING MATERIALS,260,10. |
| MLA | Shen, Jianhua,et al."Effect of particle characteristics stress on the mechanical properties of cement mortar with coral sand".CONSTRUCTION AND BUILDING MATERIALS 260(2020):10. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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