掺贝壳骨料混凝土的性能及固碳效果研究_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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掺贝壳骨料混凝土的性能及固碳效果研究

Study on performance and carbon fixation effect of concrete with shell aggregates

2024年第10期

贝壳；再生骨料；混凝土；力学性能；抗氯离子渗透性能；固碳性能

Shell; Recycled aggregate; Concrete; Mechanical property; Resistance to chloride ion penetration performance; Carbon fixation performance

2024年第10期

10.19761/j.1000-4637.2024.10.090.05

重庆市研究生联合培养基地建设项目（JDLHPYJD2020026）；中国电建集团华东勘测设计研究院有限公司科研项目（ZKY2023-FJ-02-01）；重庆市建设科技计划项目（城科字2022第8-12号）。

詹帅1，王俊杰2，刘涛3

1.重庆交通大学河海学院，重庆 400074；2.重庆交通大学材料科学与工程学院，重庆 400074； 3.华东勘测设计研究院有限公司，福建福州 350001

詹帅1，王俊杰2，刘涛3

詹帅,王俊杰,刘涛.掺贝壳骨料混凝土的性能及固碳效果研究[J].混凝土与水泥制品,2024(10):90-93,98.

ZHAN S,WANG J J,LIU T.Study on performance and carbon fixation effect of concrete with shell aggregates[J].China Concrete and Cement Products,2024(10):90-93,98.

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1000

摘要：将废弃贝壳制成再生粗、细骨料，研究了贝壳骨料等质量部分替代天然骨料对混凝土力学性能和抗氯离子渗透性能的影响，并依托福建泉港海岸修复工程，分析了掺贝壳骨料混凝土的固碳性能。结果表明：随着粗、细贝壳掺量的增加，试件的抗压、抗折和劈裂抗拉强度均先增大后减小；在粗贝壳掺量一定的情况下，增加细贝壳掺量对试件的抗氯离子渗透性能影响不大；当细贝壳掺量一定时，随着粗贝壳掺量的增加，试件的抗氯离子渗透性能下降；综合考虑力学性能和抗氯离子渗透性能，推荐粗、细贝壳的最佳掺量均为40%，据此可估算出福建泉港海岸修复工程中贝壳骨料生态贝藻礁可固碳1 657 t，可清理陆地堆积废弃贝壳0.035 km2，生态环境效益显著。 Abstract: The recycled coarse and fine aggregates were made from discarded shells, and the effects of partially replacing natural aggregates with shell aggregates on the mechanical properties and resistance to chloride ion penetration performance of concrete were studied. Based on the Fujian Quangang Coastal Restoration Project, the carbon fixation performance of concrete with shell aggregates was analyzed. The results show that with the increase of coarse and fine shell content, the compressive strength, flexural strength, and splitting tensile strength of the specimens first increase and then decrease. When the content of coarse shells is constant, increasing the content of fine shells has little effect on the resistance to chloride ion penetration performance of the specimens. When the content of fine shells is constant, the resistance to chloride ion penetration performance of the specimens decreases with the increase of the content of coarse shells. Taking into account the mechanical properties and resistance to chloride ion penetration performance, it is recommended that the optimal content for both coarse and fine shells be 40%. Based on this, it can be estimated that the shell aggregate ecological shell algae reef in the Fujian Quangang Coastal Restoration Project can fix 1 657 t of carbon and clean up 0.035 km2 of discarded shells accumulated on land, with significant ecological and environmental benefits.

英文名 : Study on performance and carbon fixation effect of concrete with shell aggregates

刊期 : 2024年第10期

关键词 : 贝壳；再生骨料；混凝土；力学性能；抗氯离子渗透性能；固碳性能

Key words : Shell; Recycled aggregate; Concrete; Mechanical property; Resistance to chloride ion penetration performance; Carbon fixation performance

刊期 : 2024年第10期

DOI : 10.19761/j.1000-4637.2024.10.090.05

文章编号 :

基金项目 : 重庆市研究生联合培养基地建设项目（JDLHPYJD2020026）；中国电建集团华东勘测设计研究院有限公司科研项目（ZKY2023-FJ-02-01）；重庆市建设科技计划项目（城科字2022第8-12号）。

作者 : 詹帅1，王俊杰2，刘涛3

单位 : 1.重庆交通大学河海学院，重庆 400074；2.重庆交通大学材料科学与工程学院，重庆 400074； 3.华东勘测设计研究院有限公司，福建福州 350001

詹帅1，王俊杰2，刘涛3

詹帅,王俊杰,刘涛.掺贝壳骨料混凝土的性能及固碳效果研究[J].混凝土与水泥制品,2024(10):90-93,98.

ZHAN S,WANG J J,LIU T.Study on performance and carbon fixation effect of concrete with shell aggregates[J].China Concrete and Cement Products,2024(10):90-93,98.

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摘要

参数

结论

参考文献

引用本文

Abstract: The recycled coarse and fine aggregates were made from discarded shells, and the effects of partially replacing natural aggregates with shell aggregates on the mechanical properties and resistance to chloride ion penetration performance of concrete were studied. Based on the Fujian Quangang Coastal Restoration Project, the carbon fixation performance of concrete with shell aggregates was analyzed. The results show that with the increase of coarse and fine shell content, the compressive strength, flexural strength, and splitting tensile strength of the specimens first increase and then decrease. When the content of coarse shells is constant, increasing the content of fine shells has little effect on the resistance to chloride ion penetration performance of the specimens. When the content of fine shells is constant, the resistance to chloride ion penetration performance of the specimens decreases with the increase of the content of coarse shells. Taking into account the mechanical properties and resistance to chloride ion penetration performance, it is recommended that the optimal content for both coarse and fine shells be 40%. Based on this, it can be estimated that the shell aggregate ecological shell algae reef in the Fujian Quangang Coastal Restoration Project can fix 1 657 t of carbon and clean up 0.035 km² of discarded shells accumulated on land, with significant ecological and environmental benefits.

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