Study of the anti-abrasion performance and mechanism of coral reef sand concrete
文献类型：期刊论文
| 作者 | Qin, Qinglong1,2; Meng, Qingshan1; Yang, Huamei3; Wu, Wenjuan4 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2021-07-12 |
| 卷号 | 291期号:-页码:14 |
| 关键词 | Coral reef sand concrete Anti-abrasion strength Compressive strength Micro-hardness Interfacial transition zone |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2021.123263 |
| 英文摘要 | In a marine environment, tidal waves carry coral reef blocks, which cause erosion and abrasion of breakwaters and other concrete structures, seriously affecting their stability and durability. In order to reveal the damage mechanism of coral reef sand concrete, herein the effects of admixtures such as fly ash, silica fume, polypropylene fiber and basalt fiber on the anti-abrasion performance and micro-hardness of coral reef sand concrete were studied. Additionally, the mechanisms of the abrasive damage and the increased performance of coral reef sand concrete were revealed by means of modern testing techniques, including X-ray diffraction and scanning electron microscope. The results revealed a linear relationship between the anti-abrasion strength and the compressive strength of the coral reef sand concrete mixed with fly ash and silica fume; whereas this correlation was not observed for the coral reef sand concrete containing fibers. Unlike ordinary aggregates, the characteristics of the coral aggregate such as the roughness, porosity, susceptibility to breakage, the irregularity of the shape, and the mineral composition were found to affect the anti-abrasion performance of the coral reef sand concrete. The roughness and the porous characteristics improved the micro-hardness of the aggregate-cement stone joints (0 mu m) in the coral reef sand concrete, but there was still a weak Interfacial transition zone. Moreover, it was observed that the abrasion of the coral reef sand concrete can be reduced by the presence of a strong and dense interfacial transition zone, the crack resistance effect of the fibers, and the enhanced cohesive force of the cement mortar and fibers. (C) 2021 Elsevier Ltd. All rights reserved. |
| 资助项目 | Priority Research Program of the Chinese Academy of Science[XDA13010201] ; National Key Basic Research Program of China[2013CB956104] ; National Natural Science Foundation of China[41472287] ; Outstanding Young and Middle-aged Science and Technology Innovation Team Program in Higher Education Institutions in Hubei Province[T2020039] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000660288600010 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27526]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Wuchang Univ Technol, Coll Intelligent Construct, Wuhan 430223, Peoples R China 4.Shandong Transportat Inst, Jinan 250100, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qin, Qinglong,Meng, Qingshan,Yang, Huamei,et al. Study of the anti-abrasion performance and mechanism of coral reef sand concrete[J]. CONSTRUCTION AND BUILDING MATERIALS,2021,291(-):14. |
| APA | Qin, Qinglong,Meng, Qingshan,Yang, Huamei,&Wu, Wenjuan.(2021).Study of the anti-abrasion performance and mechanism of coral reef sand concrete.CONSTRUCTION AND BUILDING MATERIALS,291(-),14. |
| MLA | Qin, Qinglong,et al."Study of the anti-abrasion performance and mechanism of coral reef sand concrete".CONSTRUCTION AND BUILDING MATERIALS 291.-(2021):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。