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煤矸石混凝土性能与资源化应用研究评述

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文章导航 > 矿产综合利用 > 2023 > 44(2): 169-176

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邓友生, 冯爱林, 孟丽青, 李龙, 章梦雨, 郑云方. 煤矸石混凝土性能与资源化应用研究评述[J]. 矿产综合利用, 2023, 44(2): 169-176. doi: 10.3969/j.issn.1000-6532.2023.02.026
引用本文: 邓友生, 冯爱林, 孟丽青, 李龙, 章梦雨, 郑云方. 煤矸石混凝土性能与资源化应用研究评述[J]. 矿产综合利用, 2023, 44(2): 169-176. doi: 10.3969/j.issn.1000-6532.2023.02.026
shu
Deng Yousheng, Feng Ailin, Meng Liqing, Li Long, Zhang Mengyu, Zheng Yunfang. Review of Research on the Properties and Resource Utilization of Coal Gangue Concrete[J]. Multipurpose Utilization of Mineral Resources, 2023, 44(2): 169-176. doi: 10.3969/j.issn.1000-6532.2023.02.026
Citation: Deng Yousheng, Feng Ailin, Meng Liqing, Li Long, Zhang Mengyu, Zheng Yunfang. Review of Research on the Properties and Resource Utilization of Coal Gangue Concrete[J]. Multipurpose Utilization of Mineral Resources, 2023, 44(2): 169-176. doi: 10.3969/j.issn.1000-6532.2023.02.026
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煤矸石混凝土性能与资源化应用研究评述

  • 西安科技大学建筑与土木工程学院，西安科技大学桩承结构研究中心，陕西 西安 710054

  • 基金项目: 国家自然科学基金项目(51878554，41672308) ；陕西省自然科学基础研究计划重点项目（2018JZ5012）
详细信息
    作者简介: 邓友生（1969-），男，博士，教授，博导，主要从事基础工程及防灾减灾教学与科研工作
    通讯作者: 冯爱林(1996-)，男，硕士研究生，主要从事基础工程及防灾减灾科研工作

  • 中图分类号: TD94;TU528

Review of Research on the Properties and Resource Utilization of Coal Gangue Concrete

  • School of Architecture and Civil Engineering, Xi′an University of Science and Technology, Plie-supported Structures Research and Test Center, Xi'an University of Science and Technology, Xi'an, Shaanxi, China

More Information

    摘要

  • 煤矸石是一种煤炭共伴生矿物生产的副产品，属于大宗固废弃物，煤矸石混凝土是其资源化应用的重要实践。碳中和碳达峰要求各行业为绿色生态的可持续发展做出相应规划，在建筑材料资源化利用方面，将煤矸石用作集料研制高性能混凝土开始了建筑与土木工程行业的新兴材料革新，同时将其作为不可或缺的低碳化资源处理的中坚力量能够为碳中和进程加速。国内外学者对煤矸石混凝土的力学性能与工程应用等方面进行了很多理论和实验研究，在改善煤矸石混凝土性能、工程实际应用及生产技术革新等方面取得重大进展，构建了较为完整的研究体系。基于不同地区煤矸石化学矿物特性和物理性质的差异性，阐述了煤矸石作为不同集料制备的煤矸石混凝土的力学性能与耐久性能，分析了煤矸石在土木工程领域应用的可行性和目前研究局限性，展望了煤矸石作为集料制备新型混凝土在道路工程和建筑结构中的资源化应用前景，为煤矸石大宗化再生利用和煤矸石混凝土进一步研究提供新的视角和参考。

    Coal gangue is a by-product of the production of coal-associated minerals, and belongs to bulk solid waste material. coal gangue concrete is an important practice for its resource utilization. Carbon neutrality and carbon peaks require all industries to make corresponding plans for the sustainable development of green ecology. In terms of resource utilization of building materials, coal gangue was used as aggregates to develop high-performance concrete, which started a new material innovation in the construction and civil engineering industries. At the same time, it can accelerate the process of carbon neutralization as the backbone of the indispensable treatment of low-carbon resources. Scholars at home and abroad have done a lot of theoretical and experimental research on the mechanical properties and engineering application of coal gangue concrete, and have made significant progress in improving the performance of coal gangue concrete, engineering practical application and production technology innovation, and established a relatively complete research system. Based on the differences in chemical and physical properties of coal gangue in different regions, this paper elaborates on the mechanical and durability properties of coal gangue concrete prepared with different aggregates, analyzes the feasibility and current research limitations of coal gangue application in civil engineering, and looks forward to the resource utilization prospects of coal gangue as aggregate to prepare new concrete in road engineering and building structures, provide a new perspective and reference for the large-scale recycling and utilization of coal gangue and further research on coal gangue concrete.

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  • 图 1  不同龄期煤矸石－碎石粗集料混凝土的抗压强度[13](C−煅烧煤矸石; NC−未煅烧煤矸石)

    Figure 1. 

    下载: 全尺寸图片 幻灯片

    图 2  不同掺量的煤矸石混凝土抗拉强度性能[[20]]

    Figure 2. 

    下载: 全尺寸图片 幻灯片

    图 3  煤矸石集料取代率对开裂弯矩的影响[36]

    Figure 3. 

    下载: 全尺寸图片 幻灯片

    表 1  不同产地煤矸石的化学成分/%[9]

    Table 1.  Chemical composition and coal gangue from different producing areas[9]

    产地化学成分烧失量
    SO2Al2O3Fe2O3CaOMgOK2ONa2O
    辽宁抚顺43.1117.4010.390.960.890.650.1823.02
    黑龙江鸡西54.0921.622.280.230.441.750.l318.42
    新疆石河子17.705.721.7715.14.540.820.1751.90
    山西大同48.3319.879.851.850.731.650.1016.52
    江西萍乡52.5616.573.351.242.012.390.2120.71
    四川攀枝花46.3219.245.630.962.763.570.1819.17
    贵州六枝38.5513.4811.418.792.941. 511.2217.60
    河北邢台26.9417.772.960.360.190.440.0848.20
    山东肥城46.2016.827.384.241.881.600.8716.75
    安徽淮南53.6423.941.170.200.310.830.0715.12
    江苏徐州54.3014.9010.803.800.900.77/14
    山西阳泉48.5723.295.661.810.981.330.1216.54
    下载: 导出CSV
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收稿日期:  2021-08-05
刊出日期:  2023-04-25

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