超轻硫铝酸盐水泥基发泡材料的制备及硬化性能研究

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (3): 723-730.

超轻硫铝酸盐水泥基发泡材料的制备及硬化性能研究

王上¹, 刘松辉¹, 周蓉¹, 张跃宏¹, 张海波^1,2

1.河南理工大学材料科学与工程学院,焦作 454003;
2.河南省深地材料科学与技术重点实验室,焦作 454003

收稿日期:2020-10-29 修回日期:2020-12-08 出版日期:2021-03-15 发布日期:2021-04-13
通讯作者: 张海波,博士,副教授。E-mail:zzhb@hpu.edu.cn
作者简介:王上(1995—),男,硕士研究生。主要从事绿色建筑材料方面的研究。E-mail:648665647@qq.com
基金资助:
国家重点研发计划(2017YFC0603004);河南省自然科学基金(182300410207)

Preparation and Hardening Performance of Ultra-Light Sulphoaluminate Cement-Based Foaming Material

WANG Shang¹, LIU Songhui¹, ZHOU Rong¹, ZHANG Yuehong¹, ZHANG Haibo^1,2

1. School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China;
2. Henan Key Laboratory of Materials on Deep-Earth Engineering, Jiaozuo 454003, China

Received:2020-10-29 Revised:2020-12-08 Online:2021-03-15 Published:2021-04-13

摘要/Abstract

摘要： 针对传统硅酸盐水泥基发泡材料膨胀倍率小、容重与干密度较大、凝结时间长等问题,采用硫铝酸盐水泥熟料、石灰和硬石膏作为胶凝材料,双氧水(H₂O₂)为发泡剂,羟丙基甲基纤维素醚(HPMC)为稳泡剂制备了超轻硫铝酸盐水泥基发泡材料(U-SCFM),系统研究了H₂O₂用量、HPMC掺量及水胶比对U-SCFM膨胀倍率、干密度及硬化强度等性能的影响规律,并通过超景深显微镜、热分析(TGA)、扫描电子显微镜(SEM)等对U-SCFM硬化体的水化产物及微观结构进行表征。结果表明:当水胶比为0.8,H₂O₂和HPMC掺量分别为胶凝材料质量的10%和1%时,制备出膨胀倍率为4.2、干密度为265 kg/m³、7 d抗压强度达到0.98 MPa的U-SCFM材料;HPMC的增稠作用及U-SCFM快速凝结硬化形成钙矾石晶体是U-SCFM硬化体多孔结构形成的主要原因。以上结果为煤矿巷道高冒区的充填提供了一种绿色安全、低成本充填材料。

关键词: 硫铝酸盐水泥熟料, 充填材料, 发泡, 稳泡, 双氧水

Abstract: Aiming at the problems of traditional Portland cement-based foaming materials, such as small expansion ratio, large bulk density and dry density, and long setting time. An ultra-light sulfoaluminate cement-based foaming material (U-SCFM) was prepared using sulfoaluminate cement clinker, lime and hard gypsum as cementitious materials, hydrogen peroxide (H₂O₂) as blowing agent and hydroxypropyl methylcellulose ether (HPMC) as foam stabilizer.The influence of H₂O₂ dosage, HPMC content and water-binder ratio on the expansion ratio, dry density, and hardening strength of U-SCFM were systematically researched. The hydration products and microstructure of U-SCFM hardened body were also characterized by using the ultra-depth-of-field microscope, thermal analysis (TGA), scanning electron microscope (SEM). The results show that when the water-binder ratio is 0.8, H₂O₂ and HPMC content are respectively 10% and 1% of the cementitious materials mass, U-SCFM with an expansion ratio of 4.2, dry density of 265 kg/m³, and 7 d compressive strength of 0.98 MPa is prepared. The thickening effect of HPMC and the rapid setting and hardening of U-SCFM to form ettringite crystals are the main reasons for the formation of the porous structure of the U-SCFM hardened body. The above results provide a green, safe, low-cost filling material for filling the high-collapse area of coal mine tunnels.

Key words: sulphoaluminate cement clinker, filling material, foaming, foam stabilizer, hydrogen peroxide

中图分类号:

TU525

王上, 刘松辉, 周蓉, 张跃宏, 张海波. 超轻硫铝酸盐水泥基发泡材料的制备及硬化性能研究[J]. 硅酸盐通报, 2021, 40(3): 723-730.

WANG Shang, LIU Songhui, ZHOU Rong, ZHANG Yuehong, ZHANG Haibo. Preparation and Hardening Performance of Ultra-Light Sulphoaluminate Cement-Based Foaming Material[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(3): 723-730.

参考文献

[1] 杨胜强,尹文萱,于宝海,等.煤巷高冒区破碎煤体自然发火微循环理论分析[J].中国矿业大学学报,2008,37(5):590-594.
YANG S Q, YIN W X, YU B H, et al. A theoretical analysis of spontaneous combustion micro-circulation in loose coal at the top-coal caving region of a coal drift[J]. Journal of China University of Mining & Technology, 2008, 37(5): 590-594 (in Chinese).
[2] 梁攀力,张清来.高冒区松散煤体自燃原因分析及防治[J].中州煤炭,2012(10):102-105.
LIANG P L, ZHANG Q L. Analysis on reason for loose coal spontaneous combustion and its prevention in top-coal falling region[J]. Zhongzhou Coal, 2012(10): 102-105 (in Chinese).
[3] 杜斌.聚氨酯充填材料的制备及性能研究[D].阜新:辽宁工程技术大学,2016.
DU B. The preparation and performance research of polyurethane filling materials[D]. Fuxin: Liaoning Technical University, 2016 (in Chinese).
[4] 卞正荣,邢敦爱,杨小铁.用罗克休、马丽散充填加固技术处理巷道冒顶[J].煤炭科技,2009(1):71-72.
BIAN Z R, XING D A, YANG X T. Using Roxiu and Mali bulk filling and reinforcement technology to treat roof fall[J]. Coal Science & Technology Magazine, 2009(1): 71-72 (in Chinese).
[5] 高谦,杨晓炳,温震江,等.基于RSM-BBD的混合骨料充填料浆配比优化[J].湖南大学学报(自然科学版),2019,46(6):47-55.
GAO Q, YANG X B, WEN Z J, et al. Optimization of proportioning of mixed aggregate filling slurry based on BBD response surface method[J]. Journal of Hunan University (Natural Sciences), 2019, 46(6): 47-55 (in Chinese).
[6] FALLIANO D, DE DOMENICO D, RICCIARDI G, et al. Experimental investigation on the compressive strength of foamed concrete: effect of curing conditions, cement type, foaming agent and dry density[J]. Construction and Building Materials, 2018, 165: 735-749.
[7] 汪龙,方祥位,孙发鑫,等.膨润土-砂混合型缓冲/回填材料土-水特征曲线研究[J].岩土力学,2013,34(8):2264-2270.
WANG L, FANG X W, SUN F X, et al. Test on soil-water characteristic curves of bentonite-sand mixtures[J]. Rock and Soil Mechanics, 2013, 34(8): 2264-2270 (in Chinese).
[8] 莫东旭,徐帅,沈庆阳.膨胀充填材料综述[J].南阳理工学院学报,2017,9(4):117-121.
MO D X, XU S, SHEN Q Y. Review of expandable filling materials[J]. Journal of Nanyang Institute of Technology, 2017, 9(4): 117-121 (in Chinese).
[9] 赵大龙.无机固化膨胀充填材料特性实验研究[D].西安:西安科技大学,2014.
ZHAO D L. The experiment research of properties of inorganic curing inflation filling material[D]. Xi’an: Xi’an University of Science and Technology, 2014 (in Chinese).
[10] 于水军,余明高,谢锋承,等.无机发泡胶凝材料防治高冒区托顶煤自燃火灾[J].中国矿业大学学报,2010,39(2):173-177.
YU S J, YU M G, XIE F C, et al. An inorganic foaming gel for preventing spontaneous combustion in a top-coal falling region[J]. Journal of China University of Mining & Technology, 2010, 39(2): 173-177 (in Chinese).
[11] AKTHAR F K, EVANS J R G. High porosity (>90%) cementitious foams[J]. Cement and Concrete Research, 2010, 40(2): 352-358.
[12] SANG G C, ZHU Y Y, YANG G, et al. Preparation and characterization of high porosity cement-based foam material[J]. Construction and Building Materials, 2015, 91: 133-137.
[13] 陈兵,张耀辉,袁印.新型无机发泡材料在高冒区充填中的应用[J].煤矿安全,2016,47(3):124-127.
CHEN B, ZHANG Y H, YUAN Y. Application of new inorganic foam material in top- coal caving region filling[J]. Safety in Coal Mines, 2016, 47(3): 124-127 (in Chinese).
[14] LI T, WANG Z, ZHOU T T, et al. Preparation and properties of magnesium phosphate cement foam concrete with H₂O₂ as foaming agent[J]. Construction and Building Materials, 2019, 205: 566-573.
[15] 王江峰,张海波,管学茂.超细水泥注浆材料煤壁注浆加固试验研究[J].河南理工大学学报(自然科学版),2011,30(2):145-148.
WANG J F, ZHANG H B, GUAN X M. The study on micro-fine cement grouting matial applying in colrl reinforcement[J]. Journal of Henan Polytechnic University (Natural Science), 2011, 30(2): 145-148 (in Chinese).
[16] 张磊蕾,王武祥,廖礼平,等.用硫铝水泥制备发泡水泥的试验研究[J].新型建筑材料,2013,40(12):1-4+12.
ZHANG L L, WANG W X, LIAO L P, et al. Experimental research on foam cement prepared with sulphoaluminate cement[J]. New Building Materials, 2013, 40(12): 1-4+12 (in Chinese).
[17] 张高杰,张海波,汤博,等.无机发泡充填材料试验研究[J].硅酸盐通报,2019,38(2):563-567.
ZHANG G J, ZHANG H B, TANG B, et al. Experimental study on inorganic foam filling material[J]. Bulletin of the Chinese Ceramic Society, 2019, 38(2): 563-567 (in Chinese).
[18] HUANG Z M, ZHANG T S, WEN Z Y. Proportioning and characterization of Portland cement-based ultra-lightweight foam concretes[J]. Construction and Building Materials, 2015, 79: 390-396.
[19] HUANG H, YUAN Q, DENG D H, et al. Effects of chemical and mineral admixtures on the foam indexes of cement-based materials[J]. Case Studies in Construction Materials, 2019, 11: e00232.
[20] SHE W, DU Y, MIAO C W, et al. Application of organic- and nanoparticle-modified foams in foamed concrete: reinforcement and stabilization mechanisms[J]. Cement and Concrete Research, 2018, 106: 12-22.
[21] FENEUIL B, ROUSSEL N, PITOIS O. Optimal cement paste yield stress for the production of stable cement foams[J]. Cement and Concrete Research, 2019, 120: 142-151.