再生蒸压加气混凝土的性能及水化机理研究_《混凝土与水泥制品》杂志社

头部文案

发布时间：2020-01-06 00:00:00

全国建材科技期刊
全国中文核心期刊
中国科技论文统计源期刊
万方数据-数字化期刊群入网期刊
中国学术期刊（光盘版）全文收录期刊

华东地区优秀科技期刊
江苏省期刊方阵“双效期刊”
中国期刊网全文收录期刊
中国科技期刊数据库全文收录期刊



再生蒸压加气混凝土的性能及水化机理研究

Study on performance and hydration mechanism of recycled autoclaved aerated concrete

2023年第11期

废混凝土粉；蒸压制度；蒸压加气混凝土；性能；水化机理

Waste concrete powder; Autoclave system; Autoclaved aerated concrete; Performance; Hydration mechanism

2023年第11期

10.19761/j.1000-4637.2023.11.093.05

国家环境保护矿冶资源利用与污染控制重点实验室开放基金项目（HB201913）；国家自然科学基金项目（41102218）；湖北省重点研发计划项目（2022BCA062）。

陈永亮1，2，李傲君1，成亮1，陈铁军1，陈君宝1，夏加庚3

1.武汉科技大学资源与环境工程学院，湖北武汉 430081；2.国家环境保护矿冶资源利用与污染控制重点实验室，湖北武汉 430081；3.泳锌高新技术有限公司，江苏苏州 215000

陈永亮1，2，李傲君1，成亮1，陈铁军1，陈君宝1，夏加庚3

陈永亮,成亮,陈铁军,等.再生蒸压加气混凝土的性能及水化机理研究[J].混凝土与水泥制品,2023(11):93-97.

CHEN Y L,CHENG L,CHEN T J,et al.Study on performance and hydration mechanism of recycled autoclaved aerated concrete[J].China Concrete and Cement Products,2023(11):93-97.

浏览量:

1000

摘要：将废混凝土粉作为硅质材料掺入蒸压加气混凝土中，研究了废混凝土粉的掺量（40%~70%）、蒸压压力（0.9~1.7 MPa）和蒸压时间（4、6、8 h）对蒸压加气混凝土性能的影响，并通过XRD和SEM分析了其水化机理。结果表明：当废混凝土粉掺量为50%、蒸压压力为1.1 MPa、蒸压时间为8 h时，制备的再生蒸压加气混凝土的抗压强度和干密度分别达到7.5 MPa和647 kg/m3，满足相关标准中的A5.0、B06级别要求；蒸压养护促进了蒸压加气混凝土中的硅质材料和钙质材料反应，生成了大量的片状托贝莫来石、半结晶CSH（Ⅰ）、CSH凝胶和少量水化石榴石、硬石膏等水化产物，从而提高了蒸压加气混凝土的强度，降低了其干密度。 Abstract: The effect of the content of waste concrete powder(40%~70%), autoclaved pressure(0.9~1.7 MPa), and autoclaved time(4, 6, 8 h) on the performance of autoclaved aerated concrete was studied by adding waste concrete powder as the siliceous material. The hydration mechanism was analyzed by XRD and SEM. The results show that when the content of waste concrete powder is 50%, the autoclave pressure is 1.1 MPa, and the autoclave time is 8 h, the compressive strength and dry density of the prepared recycled autoclaved aerated concrete can reach 7.5 MPa and 647 kg/m3, respectively, meeting the requirements of A5.0 and B06 in relevant standards. Autoclave curing promotes the reaction of siliceous materials and calcareous materials in autoclaved aerated concrete, and generates a large number of flaky tobermorite, semi crystalline CSH (Ⅰ), CSH gel, and a small amount of hydrated garnet, anhydrite and other hydration products, thus improving the strength of autoclaved aerated concrete and reducing its dry density.

英文名 : Study on performance and hydration mechanism of recycled autoclaved aerated concrete

刊期 : 2023年第11期

关键词 : 废混凝土粉；蒸压制度；蒸压加气混凝土；性能；水化机理

Key words : Waste concrete powder; Autoclave system; Autoclaved aerated concrete; Performance; Hydration mechanism

刊期 : 2023年第11期

DOI : 10.19761/j.1000-4637.2023.11.093.05

文章编号 :

基金项目 : 国家环境保护矿冶资源利用与污染控制重点实验室开放基金项目（HB201913）；国家自然科学基金项目（41102218）；湖北省重点研发计划项目（2022BCA062）。

作者 : 陈永亮1，2，李傲君1，成亮1，陈铁军1，陈君宝1，夏加庚3

单位 : 1.武汉科技大学资源与环境工程学院，湖北武汉 430081；2.国家环境保护矿冶资源利用与污染控制重点实验室，湖北武汉 430081；3.泳锌高新技术有限公司，江苏苏州 215000

陈永亮1，2，李傲君1，成亮1，陈铁军1，陈君宝1，夏加庚3

陈永亮,成亮,陈铁军,等.再生蒸压加气混凝土的性能及水化机理研究[J].混凝土与水泥制品,2023(11):93-97.

CHEN Y L,CHENG L,CHEN T J,et al.Study on performance and hydration mechanism of recycled autoclaved aerated concrete[J].China Concrete and Cement Products,2023(11):93-97.





摘要

参数

结论

参考文献

引用本文

Abstract: The effect of the content of waste concrete powder(40%~70%), autoclaved pressure(0.9~1.7 MPa), and autoclaved time(4, 6, 8 h) on the performance of autoclaved aerated concrete was studied by adding waste concrete powder as the siliceous material. The hydration mechanism was analyzed by XRD and SEM. The results show that when the content of waste concrete powder is 50%, the autoclave pressure is 1.1 MPa, and the autoclave time is 8 h, the compressive strength and dry density of the prepared recycled autoclaved aerated concrete can reach 7.5 MPa and 647 kg/m³, respectively, meeting the requirements of A5.0 and B06 in relevant standards. Autoclave curing promotes the reaction of siliceous materials and calcareous materials in autoclaved aerated concrete, and generates a large number of flaky tobermorite, semi crystalline CSH (Ⅰ), CSH gel, and a small amount of hydrated garnet, anhydrite and other hydration products, thus improving the strength of autoclaved aerated concrete and reducing its dry density.

扫二维码用手机看

[1] 吴跃东,彭犇,吴龙,等.国内外钢渣处理与资源化利用技术发展现状综述[J].环境工程,2021,39(1):161-165.
[2] GUO D M,HUANG L Z.The state of the art of material flow analysis research based on construction and demolition waste recycling and disposal[J].Buildings,2019,9(10):1-11.
[3] TEH S H,WIEDMANN T,MOORE S.Mixed-unit hybrid life cycle assessment applied to the recycling of construction materials[J].Journal of Economic Structures,2018,7(1):1-25.

[4] 崔素萍,刘晓.建筑废弃物资源化关键技术及发展战略[M].北京:科学出版社,2017.
[5] 陈裕佳,杨善顺,徐仁崇.建筑废砖的资源再循环利用[J].砖瓦,2016(11):65-67.
[6] 苗毓恩,王罗春.旧建筑物拆除中废旧砖瓦的资源化途径[J].海电力学院学报,2009,25(6):579-581,598.
[7] 王迪.B06级沙漠砂蒸压加气混凝土砌体抗震性能研究[D].石河子:石河子大学,2019.
[8] 朱萌萌.建筑垃圾再生蒸压加气混凝土的试验研究[D].赣州:江西理工大学,2015.
[9] KALPANA M,MOHITH S.Study on autoclaved aerated concrete:Review[J].Materials Today:Proceedings,2020,22:894-896.
[10] RAHMAN R A,FAZLIZAN A,ASIM N,et al.A review on the utilization of waste material for autoclaved aerated concrete production[J].Journal of Renewable Materials,2021,9(1):61-72.
[11] 王琪,程海丽,邓兴维.废混凝土骨料、废砖粉透水混凝土配比试验[J].再生资源与循环经济,2018,11(11):36-38.
[12] 王亚松,覃铃玲,李松,等.建筑垃圾再生骨料改性技术研究进展[J].混凝土与水泥制品,2022(9):99-105.
[13] 李嘉诚.再生细骨料粉末制备免蒸压加气混凝土试验研究[D].银川:宁夏大学,2020.
[14] 罗建林.再生细骨料加气混凝土的试验研究[D].长沙:湖南大学,2018.
[15] DEY V,BONAKDAR A,MOBASHER B.Low-velocity flexural impact response of fiber-reinforced aerated concrete[J].Cement and Concrete Composites,2014,49:100-110.
[16] WU R D,DAI S B,JIAN S W,et al.Utilization of solid waste high-volume calcium coal gangue in autoclaved aerated concrete: Physico-mechanical properties, hydration products and economic costs[J].Journal of Cleaner Production,2021,278:123416.
[17] 程海丽,刘国强,杨飞华,等.废混凝土再生骨料及掺和料对GRC耐久性的影响[J].建筑材料学报,2018,21(3):490-496,510.
[18] 陈曦,李滢,庄平英.废弃混凝土再生微粉胶凝性能的试验研究[J].混凝土与水泥制品,2019(11):96-100.
[19] 毛奎,蔡亮,吴小文,等.几种典型铁尾矿制备加气混凝土性能及水化机理研究[J].硅酸盐通报,2019,38(12):3719-3725.
[20] 张高展,葛竞成,张春晓,等.养护制度对混凝土微结构形成机理的影响进展[J].材料导报,2021,35(15):15125-15133.
[21] 赵云良,张一敏,陈铁军.蒸压制度对赤铁矿尾矿蒸压砖强度的影响[J].金属矿山,2012,41(5):161-164.
[22] 李德忠,倪文.蒸压养护制度对某铁尾矿加气混凝土力学性能的影响[J].金属矿山,2014(1):172-176.
[23] BEKTAS F,WANG K,CEYLAN H.Effects of crushed clay brick aggregate on mortar durability[J].Construction and Building Materials,2009,23(5):1909-1914.
[24] LI J,WANG Z J,ZHANG K F,et al.Properties and hydration mechanism of autoclaved aerated concrete containing coal gangue and fly ash[J].Journal of New Materials for Electrochemical Systems,2019,22(4):231-238.
[25] SONG Y M,LI B L,YANG E H,et al.Feasibility study on utilization of municipal solid waste incineration bottom ash as aerating agent for the production of autoclaved aerated concrete[J].Cement and Concrete Composites,2015,56:51-58.
[26] 翟媛媛,曾庆栋,ROLAND H,等.钾长石在碱性条件下的蚀变机制及其蚀变产物托贝莫来石的纳米结构研究[J].岩石学报,2020,36(9):2834-2844.
[27] 罗立群,舒伟,程琪林,等.铁尾矿加气混凝土制备工艺及结构形成机理分析[J].化工进展,2017,36(4):1482-1490.
[28] 陈伟,倪文,李德忠,等.金尾矿蒸压加气混凝土水化机理和微观结构分析[J].材料科学与工艺,2015,23(1):32-37.

上一个

机械-化学耦合激发电解锰渣对水泥基材料性能的影响

下一个

废弃混凝土作骨料及掺合料对混凝土性能的影响

头部文案

再生蒸压加气混凝土的性能及水化机理研究

相关文件