基于核磁共振技术分析生活垃圾焚烧灰渣代砂混凝土的微观结构与抗压强度

硅酸盐通报 ›› 2023, Vol. 42 ›› Issue (1): 248-257.

所属专题：资源综合利用

基于核磁共振技术分析生活垃圾焚烧灰渣代砂混凝土的微观结构与抗压强度

石东升¹, 淮炳栋¹, 马政^1,2, 姜文超^1,3, 杨凯²

1.内蒙古工业大学土木工程学院,呼和浩特 010051;
2.兴泰建设集团有限公司,鄂尔多斯 017000;
3.内蒙古电力(集团)有限责任公司蒙电项目建管分公司,呼和浩特 010020

收稿日期:2022-08-26 修订日期:2022-10-13 出版日期:2023-01-15 发布日期:2023-02-15
通信作者: 淮炳栋,硕士研究生。E-mail:275964841@qq.com
作者简介:石东升(1971—),男,博士,教授。主要从事新型混凝土结构及预应力结构的研究。E-mail:shids@imut.edu.cn
基金资助:
国家自然科学基金(51868058);内蒙古工业大学研究生教改项目(YJG2020024);兴泰建设集团有限公司研究开发项目(XTXM-RD-01)

Analysis of Microstructure and Compressive Strength of Concrete with Municipal Solid Waste Incineration Bottom Ash as Sand Based on Nuclear Magnetic Resonance Technology

SHI Dongsheng¹, HUAI Bingdong¹, MA Zheng^1,2, JIANG Wenchao^1,3, YANG Kai²

1. School of Civil Engineering, Inner Mongolia University of Technology, Hohhot 010051, China;
2. Xingtai Construction Group Co., Ltd., Ordos 017000, China;
3. Mongolia Electricity Project Construction Management Branch, Inner Mongolia Electric Power (Group) Co., Ltd., Hohhot 010020, China

Received:2022-08-26 Revised:2022-10-13 Online:2023-01-15 Published:2023-02-15

摘要/Abstract

摘要： 孔结构是混凝土微观结构中重要的组成部分,影响着混凝土的宏观性能,为了研究生活垃圾焚烧灰渣代替天然砂对混凝土孔结构和抗压强度的影响,通过核磁共振技术对生活垃圾焚烧灰渣代砂混凝土微观孔结构进行测试,分析了孔隙率和孔隙分布变化规律,并根据分形理论研究了孔隙分形特征,获得各孔径区间的分形维数与整体分形维数,并探讨了各孔径占比、孔隙率和分形维数与抗压强度之间的灰熵关联度。结果表明:随生活垃圾焚烧灰渣代砂率的增加,混凝土孔隙率增加,无害孔占比减小,抗压强度降低;分形维数随着生活垃圾焚烧灰渣代砂率的增加而减小,由于生活垃圾焚烧灰渣具有潜在的水硬性,随龄期的增长,分形维数呈增加趋势,同时孔隙结构得到了优化。灰熵关联度分析发现生活垃圾焚烧灰渣代砂混凝土整体分形维数和无害孔占比对抗压强度影响最大。

关键词: 生活垃圾焚烧灰渣, 混凝土, 孔结构, 抗压强度, 核磁共振, 分形理论

Abstract: Pore structure is an important composition of concrete microstructure and affects the macroscopic properties of concrete. This paper aims to study the effect of the substitution of municipal solid waste incineration bottom ash (MSWIBA) for natural sand on the pore structure and compressive strength of concrete. Nuclear magnetic resonance technology was employed to investigate the porosity and the variation character of the pore size distribution for concrete with MSWIBA. Meanwhile, according to the fractal theory, the fractal characteristics of pores were explored, and the fractal dimension of each pore size interval and the overall fractal dimension were obtained. Moreover, the grey entropy correlation degree between each pore size ratio, porosity, fractal dimension, and compressive strength was discussed. The results show that the porosity of concrete increases, and the proportion of harmless pores and compressive strength decrease with the increase of the replacement of natural sand with MSWIBA. Furthermore, the fractal dimension decreases with the increase of the content of MSWIBA. The fractal dimension increases and the pore structure is improved with age due to the potential hydraulic properties of MSWIBA. Meanwhile, the overall fractal dimension and the proportion of harmless pores of concrete with MSWIBA have the greatest influence on the compressive strength based on the grey entropy correlation degree analysis.

Key words: municipal solid waste incineration bottom ash, concrete, pore structure, compressive strength, nuclear magnetic resonance, fractal theory

中图分类号:

TU528

石东升, 淮炳栋, 马政, 姜文超, 杨凯. 基于核磁共振技术分析生活垃圾焚烧灰渣代砂混凝土的微观结构与抗压强度[J]. 硅酸盐通报, 2023, 42(1): 248-257.

SHI Dongsheng, HUAI Bingdong, MA Zheng, JIANG Wenchao, YANG Kai. Analysis of Microstructure and Compressive Strength of Concrete with Municipal Solid Waste Incineration Bottom Ash as Sand Based on Nuclear Magnetic Resonance Technology[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(1): 248-257.

参考文献

[1] KEULEN A, VAN ZOMEREN A, HARPE P, et al. High performance of treated and washed MSWI bottom ash granulates as natural aggregate replacement within earth-moist concrete[J]. Waste Management, 2016, 49: 83-95.
[2] BERTOLINI L, CARSANA M, CASSAGO D, et al. MSWI ashes as mineral additions in concrete[J]. Cement and Concrete Research, 2004, 34(10): 1899-1906.
[3] HOLMES N, O’MALLEY H, CRIBBIN P, et al. Performance of masonry blocks containing different proportions of incinator bottom ash[J]. Sustainable Materials and Technologies, 2016, 8: 14-19.
[4] LOGINOVA E, VOLKOV D S, VAN DE WOUW P M F, et al. Detailed characterization of particle size fractions of municipal solid waste incineration bottom ash[J]. Journal of Cleaner Production, 2019, 207: 866-874.
[5] GHANEM H, KHATIB J, ELKORDI A. Effect of partial replacement of sand by MSWI-BA on the properties of mortar[J]. BAU Journal-Science and Technology, 2020, 1(2): 4.
[6] SHEN P L, ZHENG H B, XUAN D X, et al. Feasible use of municipal solid waste incineration bottom ash in ultra-high performance concrete[J]. Cement and Concrete Composites, 2020, 114: 103814.
[7] WOO B H, JEON I K, YOO D H, et al. Utilization of municipal solid waste incineration bottom ash as fine aggregate of cement mortars[J]. Sustainability, 2021, 13(16): 8832.
[8] CHENG A. Effect of incinerator bottom ash properties on mechanical and pore size of blended cement mortars[J]. Materials & Design (1980—2015), 2012, 36: 859-864.
[9] 尹红宇.混凝土孔结构的分形特征研究[D].南宁:广西大学,2006.
YIN H Y. Study the fractal characteristic of concrete’s pore structure[D]. Nanning: Guangxi University, 2006 (in Chinese).
[10] CHEN X D, WU S X, ZHOU J K. Influence of porosity on compressive and tensile strength of cement mortar[J]. Construction and Building Materials, 2013, 40: 869-874.
[11] VICENTE M A, GONZÁLEZ D C, MÍNGUEZ J, et al. Influence of the pore morphology of high strength concrete on its fatigue life[J]. International Journal of Fatigue, 2018, 112: 106-116.
[12] WANG L, JIN M M, WU Y H, et al. Hydration, shrinkage, pore structure and fractal dimension of silica fume modified low heat Portland cement-based materials[J]. Construction and Building Materials, 2021, 272: 121952.
[13] 石东升,林书宇,韩佳彤.具有潜在活性的细骨料混凝土抗氯离子性能研究[J].混凝土,2022(3):113-116.
SHI D S, LIN S Y, HAN J T. Study on chloride ion resistance of fine aggregate concrete with potential activity[J]. Concrete, 2022(3): 113-116 (in Chinese).
[14] 刘栋,李立寒.生活垃圾焚烧炉渣集料的胶凝特征[J].同济大学学报(自然科学版),2017,45(3):377-383.
LIU D, LI L H. Cementitious properties of municipal solid waste incineration bottom ash aggregate[J]. Journal of Tongji University (Natural Science), 2017, 45(3): 377-383 (in Chinese).
[15] 黄元.生活垃圾焚烧灰渣代砂混凝土工程模拟构件力学性能研究[D].呼和浩特:内蒙古工业大学,2021:16-19.
HUANG Y. The study on mechanical properties of simulating component of concrete project with MSWI as fine aggregate[D]. Hohhot: Inner Mongolia University of Tehchnology, 2021: 16-19 (in Chinese).
[16] YAO Y B, LIU D M, CHE Y, et al. Petrophysical characterization of coals by low-field nuclear magnetic resonance (NMR)[J]. Fuel, 2010, 89(7): 1371-1380.
[17] 魏毅萌,柴军瑞,覃源,等.冻融循环下再生混凝土孔隙分布变化及其对抗冻性能的影响[J].硅酸盐通报,2018,37(3):825-830.
WEI Y M, CHAI J R, QIN Y, et al. Effect of pore distribution of recycled concrete on frost resistance under freeze-thaw cycling[J]. Bulletin of the Chinese Ceramic Society, 2018, 37(3): 825-830 (in Chinese).
[18] 邓祥辉,高晓悦,王睿,等.再生混凝土抗冻性能试验研究及孔隙分布变化分析[J].材料导报,2021,35(16):16028-16034.
DENG X H, GAO X Y, WANG R, et al. Study on frost resistance and pore distribution change of recycled concrete[J]. Materials Reports, 2021, 35(16): 16028-16034 (in Chinese).
[19] 吴中伟,廉慧珍.高性能混凝土[M].北京:中国铁道出版社,1999:24.
WU Z W, LIAN H Z. High performance concrete[M]. Beijing: China Railway Publishing House, 1999: 24 (in Chinese).
[20] 丁向群,王钰,邢进,等.粉煤灰对混凝土干湿循环抗冻性能的影响[J].硅酸盐通报,2015,34(s1):17-21+26.
DING X Q, WANG Y, XING J, et al. Influence of fly ash on frost resistance of concrete under dry-wet circulation[J]. Bulletin of the Chinese Ceramic Society, 2015, 34(s1): 17-21+26 (in Chinese).
[21] 熊建龙,王凯,杜全先,等.基于低场核磁共振技术的酸化煤样孔隙特征研究[J].矿业安全与环保,2022,49(1):47-52.
XIONG J L, WANG K, DU Q X, et al. Study on pore characteristics of acidified coal samples based on low field nuclear magnetic resonance technology[J]. Mining Safety ＆ Environmental Protection, 2022, 49(1): 47-52 (in Chinese).
[22] 邓聚龙.灰色系统理论教程[M].武汉:华中理工大学出版社,1990.
DENG J L. The grey system theory tutorial[M]. Wuhan: Huazhong University of Science Press, 1990 (in Chinese)
[23] 祝斯月,陈拴发,秦先涛,等.基于灰关联熵分析法的高粘改性沥青关键指标[J].材料科学与工程学报,2014,32(6):863-867.
ZHU S Y, CHEN S F, QIN X T, et al. Key indexes of high viscosity modified asphalt based on grey correlation entropy analysis[J]. Journal of Materials Science and Engineering, 2014, 32(6): 863-867 (in Chinese).
[24] 周长皓.水泥净浆和砂浆抗压强度与多尺度孔结构的关系研究[D].哈尔滨:哈尔滨工业大学,2020:28-30.
ZHOU C H. Investigations on the relationships between compressive strength of cement pastes and mortars and their pore structure of multiscale characteristics[D]. Harbin: Harbin Institute of Technology, 2020: 28-30 (in Chinese).

基于核磁共振技术分析生活垃圾焚烧灰渣代砂混凝土的微观结构与抗压强度

Analysis of Microstructure and Compressive Strength of Concrete with Municipal Solid Waste Incineration Bottom Ash as Sand Based on Nuclear Magnetic Resonance Technology

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	齐晓, 肖前慧, 邱继生, 刘书林. 冻融循环与硫酸盐侵蚀共同作用下再生混凝土的微观结构研究[J]. 硅酸盐通报, 2023, 42(4): 1194-1204.
[2]	殷实, 李北星, 陈鹏博, 金德川. 再生砂混凝土毛细吸水特性研究[J]. 硅酸盐通报, 2023, 42(4): 1205-1216.
[3]	陈春红, 俞江, 刘荣桂, 王磊, 刘惠, 伍金龙. 干湿循环下再生细骨料混凝土的氯离子渗透性能[J]. 硅酸盐通报, 2023, 42(4): 1217-1225.
[4]	郭毅松, 刘乐冕, 陈剑锋. 油茶粕绿色发泡剂制备泡沫混凝土的试验研究[J]. 硅酸盐通报, 2023, 42(4): 1226-1232.
[5]	周程涛, 陈波, 高志涵. 冻融环境下泡沫混凝土的单轴压缩特性[J]. 硅酸盐通报, 2023, 42(4): 1233-1241.
[6]	丁超, 贾子杰, 王振华, 丁玉贤. 基于生命周期评价的UHPC碳排放控制潜力评估[J]. 硅酸盐通报, 2023, 42(4): 1242-1251.
[7]	张虹宇, 郑玉龙, 陆春华. 两种养护制度下C100高强混凝土韧性对比试验研究[J]. 硅酸盐通报, 2023, 42(4): 1252-1259.
[8]	张劲竹, 刘华新, 王家贺, 柳根金, 王学志. 混杂纤维混凝土高温后性能劣化分析与强度预测[J]. 硅酸盐通报, 2023, 42(4): 1260-1269.
[9]	曹军平, 朱健, 高镇. 基于正交试验的EPS轻型混凝土配合比设计及性能研究[J]. 硅酸盐通报, 2023, 42(4): 1270-1281.
[10]	石建军, 许新春, 张志恒, 禹博, 钟海峰, 杨昭, 周铭, 李景阳. 不同产地防中子辐射蛇纹石骨料混凝土比选[J]. 硅酸盐通报, 2023, 42(4): 1282-1290.
[11]	何俊, 管家贤, 吕晓龙, 张驰. 纳米硅粉改良碱渣-矿渣固化淤泥的抗硫酸镁侵蚀性能[J]. 硅酸盐通报, 2023, 42(4): 1344-1352.
[12]	刘扬, 陈湘, 王柏文, 鲁乃唯, 肖欣欣, 罗冬. 碱激发粉煤灰-矿渣-电石渣基地聚物的制备及强度机理[J]. 硅酸盐通报, 2023, 42(4): 1353-1362.
[13]	张先伟, 高永红, 王平, 李江山, 刘世宇, 郎雷, 雷学文. 电解锰渣-生活垃圾焚烧底渣协同制备路面基层材料试验研究[J]. 硅酸盐通报, 2023, 42(4): 1363-1373.
[14]	冯玉林, 高鸽, 柴喜林, 毛攀, 董晶亮, 徐光前, 黄柯靓. 城市污泥尾矿陶粒的制备工艺及其性能与应用[J]. 硅酸盐通报, 2023, 42(4): 1374-1383.
[15]	黄利祥, 刘泽, 原航, 王栋民, 危鹏, 姜宏健. 赤泥-石膏复合激发蒸压加气混凝土的制备与性能研究[J]. 硅酸盐通报, 2023, 42(4): 1393-1399.