红黏土综合浆水化进程及结石体微观形貌研究

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红黏土综合浆水化进程及结石体微观形貌研究

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- 网络出版日期: 2023-09-03

Study on hydration process of red clay cement grout and micro-morphology of grout stone

HE Wen

摘要

摘要: 为研究西南乌蒙山区红黏土所配制红黏土综合浆的水化进程和结石体微观形貌，采用直接法测定了红黏土综合浆的水化热特征，并采用扫描电镜分析了红黏土水泥浆水化产物的微结构特征，研究了水泥和结构添加剂对红黏土综合浆水化产物的影响。根据红黏土综合浆等温放热曲线，可将红黏土综合浆的水化进程分为加速期、减速期和稳定期，并通过回归分析获得了浆液水化动力学方程。观察不同龄期红黏土综合浆结石体的扫描电镜图片，发现3 d龄期结石体骨架结构较为蓬松，形成部分小块C-S-H凝胶；7 d龄期时形成大量C-S-H凝胶，结石体趋向形成1个整体；28 d时结石体各水化产物已基本形成，相互搭接形成整体结构。研究表明：水泥是浆液水化反应的基础；结构添加剂的加入提高了水泥的水化反应速度，从而提高了浆液的早期强度；过高原浆密度会降低水泥水化速度。
- 红黏土综合浆 /
- 堵水材料 /
- 水化进程 /
- 水化产物 /
- 微观形貌
Abstract: In order to study the hydration process of red clay cement grout prepared by red clay in the southwest Wumeng mountain area in southwest China and the micro-morphology of the grout stone, the hydration heat characteristics of red clay cement grout were measured by direct method, and the microstructure characteristics of the hydration products of red clay cement grout were analyzed by scanning electron microscope（ＳＥＭ）, and the effects of cement and structural additives on the hydration products of red clay cement grout were studied. According to the isothermal heat release curve of red clay cement slurry, the hydration process of red clay cement slurry can be divided into acceleration period, deceleration period and stability period, and the slurry hydration kinetics equation was obtained through regression analysis. The SEM pictures of the grout stone of red clay cement grout at different ages can be clearly observed: the skeleton structure at 3 d age was relatively fluffy, forming some small pieces of C-S-H gel; at the age of 7 d, a large amount of C-S-H gel was formed, and the stone body tended to form a whole. At 28 d age, the hydration products of the stone body had basically formed and overlapped with each other to form an overall structure. The research showed that cement is the basis of the hydration reaction for the red clay cement grout. The addition of structural additives improves the hydration reaction speed of cement, thus improves the early strength of grout.
- red clay cement grout /
- water sealing material /
- hydration process /
- hydration products /
- micro-morphology

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［1］　张亮．毛坪铅锌矿岩溶地下水系统及结构辨识研究［Ｄ］．北京：中国地质大学（北京），２０２１．［２］　袁东锋，高晓耕．黔南灯影组巨厚含水层立井井筒帷幕注浆参数研究［Ｊ］．煤炭科学技术，２０２１，４９（３）：７１－７７． YUAN Dongfeng, GAO Xiaogeng. Study on curtain grouting parameters of vertical shaft in Dengying formation of southern Guizhou with thick aquifer［J］. Coal Science and Technology, 2021, 49（3）: 71-77. ［3］　贺文，向俊兴，孙帮涛．西南矿区千米级盲竖井分段预注浆堵水技术［Ｊ］．煤矿安全，２０２０，５１（１２）：１８４－１８７． HE Wen, XIANG Junxing, SUN Bangtao. Segmented pre-grouting technology for 1 000 m-level blind shaft water blocking in southwestern mining area［J］. Safety in Coal Mines, 2020, 51（12）: 184-187. ［4］　何满潮，谢和平，彭苏萍，等．深部开采岩体力学研究［Ｊ］．岩石力学与工程学报，２００５（１６）：２８０３－２８１３．HE Manchao, XIE Heping, PENG Suping, et al. Study on rock mechanics in deep mining engineering［J］. Chinese Journal of Rock Mechanics and Engineering, 2005（16）: 2803-2813. ［5］　柴敬，袁强，王帅，等．白垩系含水地层立井突水淹井治理技术［Ｊ］．煤炭学报，２０１６，４１（２）：３３８－３４４． CHAI Jing, YUAN Qiang, WANG Shuai, et a1. Water inrush control and restoration of shaft construction in cretaceous aquifer［J］. Journal of China Coal Society, 2016, 41（2）: 338-344. ［6］　周禹良，侯公羽，袁东锋，等．溶蚀孔隙型白云岩浆－水径向扩散模型及工程应用［Ｊ］．岩土力学，２０２１，４２（７）：１９８３－１９９４． ZHOU Yulian, HOU Gongyu, YUAN Dongfen, et a1. Model of grout-water two-phase radial diffusion in dissolved porous dolomite and its engineering application［J］. Rock and Soil Mechanics, 2021, 42（7）: 1983-1994. ［7］　王绍群，张文锋，牛俊升，等．注浆技术在井筒突水治理中的应用［Ｊ］．建井技术，２０１９，４０（１）：２３－２６． WANG Shaoqun, ZHANG Wenfeng, NIU Junsheng, et a1. Application of grouting technology in control shaft water inrush［J］. Mine Construction Technology, 2019, 40（1）: 23-26. ［8］　周兴旺，高岗荣，薄志峰，等．注浆施工手册［Ｍ］．北京：煤炭工业出版社，２０１４．［９］　袁东锋，李德，吕文成，等．巨厚白云岩含水层立井井筒地面预注浆技术［Ｊ］．矿业研究与开发，２０２０，４０（１）：７６－８０． YUAN Dongfeng, LI De, LV Wencheng, et a1. Surface pre-grouting technique for vertical shaft in ultra thick dolomite aquifer［J］. Mining Research and Development, 2020, 40（1）: 76-80. ［10］　贺文，周高明，向俊兴，等．毛坪铅锌矿盲竖井井筒预注浆技术［Ｊ］．金属矿山，２０１８，４７（７）：７０－７３． HE Wen, ZHOU Gaoming, XIANG Junxing, et al. Study on pre-grouting technique of blind shaft in Maoping Pb-Zn deposit［J］. Metal Mine, 2018, 47（7）: 70-73. ［11］　徐润．黏土水泥浆结石体研究［Ｊ］．煤炭科学技术，２００４，３２（４）：５５－５７． XU Run. Research on aggregated masses in clay and cement grout［J］. Coal Science and Technology, 2004, 32（4）: 55-57. ［12］　陈振国，徐润，孙光，等．黏土水泥浆中水泥初始水化历程研究［Ｊ］．建井技术，２０１２，３３（６）：３０－３２．［１３］　田庆浩，高岗荣，刘书杰．ＣＬ－Ｃ型黏土水泥浆本构关系及流变参数时变性研究［Ｊ］．煤炭工程，２０２１，５３（３）：１４０－１４４． TIAN Qinghao, GAO Gangrong, LIU Shujie. Constitutive relation and rheological parameter time-varying properties of CL-C clay cement slurry［J］. Coal Engineering, 2021, 53（3）:140-144. ［14］　邱浩浩，王晓明，梁经纬．黏土水泥浆材特性的试验研究［Ｊ］．地质与勘探，２０２０，５６（６）：１２７２－１２７７． QIU Haohao, WANG Xiaoming, LIANG Jingwei. Experimental study on the properties of clay-cement grout［J］. Geology and Exploration, 2020, 56（6）: 1272-1277. ［15］　孙光．黏土水泥浆深井裂隙注浆模拟试验研究［Ｊ］．煤炭工程，２０１９，５１（８）：１２５－１２９． SUN Guang. Simulation test on grouting for deep shaft crack in clay cement slurry［J］. Coal Engineering, 2019, 51（8）: 125-129. ［16］　刘书杰，田庆浩，高岗荣．黏土水泥浆性能研究现状与展望［Ｊ］．建井技术，２０２１，４２（１）：４１－４４． LIU Shujie, TIAN Qinghao, GAO Gangrong. Study status and outlook on performances of clay and cement grout［J］. Mine Construction Technology, 2021, 42（1）: 41-44. ［17］　赵学庄．化学反应动力学原理［Ｍ］．北京：高等教育出版社，１９８４．［１８］　申爱琴．水泥与水泥混凝土［Ｍ］．北京：人民交通出版社，２０００．

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红黏土综合浆水化进程及结石体微观形貌研究

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Study on hydration process of red clay cement grout and micro-morphology of grout stone

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