Source Journal of CSCD
Source Journal for Chinese Scientific and Technical Papers
Core Journal of RCCSE
Included in JST China
Volume 42 Issue 4
Apr.  2024
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Article Contents
JI Hongying, LI Huan, ZHANG Dongying, GAO Zhongguo, LI Jianlin, XIN Yajun. ANALYSIS OF MECHANICAL CHARACTERISTICS AND CEMENTATION PROPERTIES ON CONSTRUCTION WASTE FILLING SPECIMENS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(4): 187-195. doi: 10.13205/j.hjgc.202404022
Citation: JI Hongying, LI Huan, ZHANG Dongying, GAO Zhongguo, LI Jianlin, XIN Yajun. ANALYSIS OF MECHANICAL CHARACTERISTICS AND CEMENTATION PROPERTIES ON CONSTRUCTION WASTE FILLING SPECIMENS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(4): 187-195. doi: 10.13205/j.hjgc.202404022

ANALYSIS OF MECHANICAL CHARACTERISTICS AND CEMENTATION PROPERTIES ON CONSTRUCTION WASTE FILLING SPECIMENS

doi: 10.13205/j.hjgc.202404022
  • Received Date: 2023-03-18
    Available Online: 2024-06-01
  • It is an effective way to control surface subsidence, realize construction waste resources, reduce land occupation area to fill the coal goaf using construction waste. Uniaxial compression mechanics tests and surface hole fraction calculation were produced on 4 groups of 12 construction waste specimens with different cement content. The relationship between cement content and hole fraction was analyzed, the relationships of cement content and compressive strength, peak strain, and elastic modulus were discussed, failure instability modes of specimens were put forward, and the cement content range of filling specimens for peak strength, the strength reasonable range and rapid strength improvement were determined. The results showed that hole fraction and cement content had an antiphase relationship, cement content had a great influence on the stress-strain curve of filling specimens, the four-phase characteristics of the stress-strain curve was significant at cement content 15%, the greater cement content (the less hole fraction), the longer the elastic phase, conversely, the longer the yield phase. As cement content increased (hole fraction decreased), the strength and elastic modulus of filling specimens were increased according to cubic polynomial, and the axial strain showed decreasing, slow, trend to stable. The instability mode of filling specimens with less than 10% cement content was a multi-crack crushing failure, the one with 10% to 15% showed double back-arch shear failure, and the one with more than 15% showed double vertical splitting failure. The cement content range of the construction waste filling body was 7% to 20% according to mine requirements, the strength range 2.3647 to 15.7341 MPa, the peak strength of the filling specimen appeared at the cement content of 18.6991%, and the strength of filling specimens on the 28th day was 1.24 times on the 10th day.
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  • [1]
    钱鸣高, 缪协兴, 许家林. 资源与环境协调(绿色)开采[J]. 煤炭学报, 2007(1): 1-7.
    [2]
    曾光, 李方芳, 唐堂, 等. 基于清洁生产理念的建筑垃圾减量技术[J]. 环境工程, 2020, 38(5): 138-143.
    [3]
    马刚平, 岳昌盛, 王荣, 等. 建筑垃圾再生骨料生产工艺及应用研究[J]. 环境工程, 2013, 31(3): 116-143.
    [4]
    鲁敏, 熊祖鸿, 林霞, 等. 建筑垃圾再生砖的早期强度性能研究[J]. 环境工程, 2019, 37(8): 173-176.
    [5]
    闫浩, 张吉雄, 张升, 等. 散体充填材料压实力学特性的宏细观研究[J]. 煤炭学报, 2017, 42(2): 413-420.
    [6]
    李猛, 张吉雄, 黄艳利, 等. 基于固体充填材料压实特性的充实率设计研究[J]. 采矿与安全工程学报, 2017, 34(6): 1110-1115.
    [7]
    郭育霞, 赵永辉, 冯国瑞, 等. 矸石胶结充填体单轴压缩损伤破坏尺寸效应研究[J]. 岩石力学与工程学报, 2021, 40(12): 2434-2444.
    [8]
    朱磊, 潘浩, 古文哲, 等. 垮落带矸石浆体充填模拟试验研究[J]. 煤炭学报, 2021, 46(增刊2): 629-638.
    [9]
    王树帅, 李永亮, 李清, 等. 基于泰波理论的矸石级配系数对充填材料性能的影响[J]. 采矿与安全工程学报, 2022, 39(4): 683-692.
    [10]
    何泽全, 巨峰, 肖猛, 等. 煤矸石充填材料在循环载荷作用下的细观变形特征分析[J]. 采矿与安全工程学报, 2022, 39(5): 1002-1010.
    [11]
    肖猛, 巨峰, 何泽全, 等. 矸石充填材料侧压系数影响因素试验研究[J]. 采矿与安全工程学报, 2020, 37(1): 73-80.
    [12]
    崔增娣, 孙恒虎. 煤矸石凝石似膏体充填材料的制备及其性能[J]. 煤炭学报, 2010, 35(6): 896-899.
    [13]
    赵永辉, 冉洪宇, 冯国瑞, 等. 单轴压缩下不同高宽比矸石胶结充填体损伤演化及破坏特征研究[J]. 采矿与安全工程学报, 2022, 39(4): 674-682.
    [14]
    徐俊明, 张吉雄, 黄艳利, 等. 充填综采矸石-粉煤灰压实变形特性试验研究及应用[J]. 采矿与安全工程学报, 2011, 28(1): 158-162.
    [15]
    任昂, 冯国瑞, 郭育霞, 等. 粉煤灰对煤矿充填膏体性能的影响[J]. 煤炭学报, 2014, 39(12): 2374-2380.
    [16]
    童立元, 潘石, 邱钰, 等. 大掺量粉煤灰注浆充填材料试验研究[J]. 东南大学学报(自然科学版), 2002(4): 643-647.
    [17]
    XIAO J Z, LI J B, ZHANG C. Mechanical properties of recycled aggregate concrete under uniaxial loading[J]. Cement & Concrete Research, 2005, 35(6): 1187-1194.
    [18]
    SAKIR E, UFUK K, SAFA N. Effects of cement dosage and steel fiber ratio on the mechanical properties of reactive powder concrete[J]. Advances in Concrete Construction, 2019, 8(2): 139-144.
    [19]
    KUMAR B M VINAY, ANANTHAN H, BALAJI K V A. Experimental studies on utilization of recycled coarse and fine aggregates in high performance concrete mixes[J]. Alexandria Engineering Journal, 2018, 57(3): 1749-1759.
    [20]
    SILVA R V, DE B J, DHIR R K. Establishing a relationship between modulus of elasticity and compressive strength of recycled aggregate concrete[J]. Journal of Cleaner Production, 2016, 112: 2171-2186.
    [21]
    辛亚军, 吕鑫, 姬红英, 等. 水泥石试件早期损伤特性与后期力学行为分析[J]. 煤炭学报, 2020, 45(9): 3119-3130.
    [22]
    MENG G H, LI M, WU Z Y, et al. The effects of high temperature on the compaction behaviour of waste rock backfill materials in deep coal mines[J]. Bulletin of Engineering Geology and the Environment, 2020, 79(2): 845-855.
    [23]
    李茂辉, 杨志强, 王有团, 等. 粉煤灰复合胶凝材料充填体强度与水化机理研究[J]. 中国矿业大学学报, 2015, 44(4): 650-655

    ,695.
    [24]
    刘音, 路瑶, 郭皓, 等. 建筑垃圾膏体充填材料配比优化试验研究[J]. 煤矿安全, 2017, 48(6): 65-68.
    [25]
    张浩强, 刘音, 王其锋. 城市建筑垃圾膏体充填性能研究[J]. 矿业研究与开发, 2014, 34(4): 37-39

    ,54.
    [26]
    刘音, 郭亚兰, 李浩, 等. 建筑垃圾再生骨料对矿山充填膏体输送性能影响的试验研究[J]. 山东科技大学学报(自然科学版), 2020, 39(3): 59-65.
    [27]
    施现院, 李浩, 刘音, 等. 建筑垃圾充填膏体强度性能影响因素的试验[J]. 煤矿安全, 2020, 51(8): 72-76.
    [28]
    韩宇峰, 殷志祥, 郭保立. 以建筑垃圾为骨料充填膏体的可行性探究[J]. 煤炭技术, 2018, 37(4): 24-26.
    [29]
    韩宇峰, 殷志祥, 郭保立. 建筑垃圾充填膏体基本性能的试验研究[J]. 矿业研究与开发, 2018, 38(3): 88-90.
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