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用硅灰替代粉煤灰的水泥浆体研究

Research on Cement Slurry Using Silica Fume Instead of Fly Ash.

作者信息

Wu Yue, Qiao Wei-Guo, Li Yan-Zhi, Liu Hui-Ni, Tang Chao, Zhang Shuai, Zhang Xiao-Li, Lu Ji-Gang, Chen Peng-Cheng

机构信息

Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Shandong University of Science and Technology, Qingdao 266590, China.

School of Civil Engineering, Ludong University, Yantai 264025, China.

出版信息

Materials (Basel). 2022 Aug 16;15(16):5626. doi: 10.3390/ma15165626.

DOI:10.3390/ma15165626
PMID:36013764
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9414665/
Abstract

Ordinary cement is not environmentally friendly, has high cost and lacks superior performance. Many scholars use various admixtures to adjust the properties of cement slurry, but admixtures are usually not environmentally friendly, and it is difficult to ensure that the properties after deployment meet engineering requirements. In this study, a variety of admixtures were obtained using the environmental protection method, and the optimal mixing ratio was analyzed by combining the entropy weight method and the Taguchi grey relational analysis method. The developed cement slurry was compared with conventional slurry from both macroscopic and microscopic aspects. Aiming at the problem that previous scholars lacked the engineering feasibility verification of the developed slurry, this study combined the constitutive equation regression analysis method, discrete element numerical simulation and other methods to study various actual engineering conditions. The results show that the optimal mix ratio of silica fume cement slurry has good permeability characteristics under the conditions of different roughness, grouting pressure and confining pressure. At the same time, under different geological temperatures and different erosive liquid states, the cement slurry stone body shows good properties of reinforcement materials.

摘要

普通水泥不环保，成本高且性能欠佳。许多学者使用各种外加剂来调整水泥浆的性能，但外加剂通常不环保，且难以确保调配后的性能满足工程要求。在本研究中，采用环保方法获得了多种外加剂，并结合熵权法和田口灰色关联分析法分析了最佳配合比。从宏观和微观两个方面将研制出的水泥浆与传统水泥浆进行了比较。针对以往学者对研制出的水泥浆缺乏工程可行性验证的问题，本研究结合本构方程回归分析法、离散元数值模拟等方法研究了各种实际工程条件。结果表明，硅灰水泥浆的最佳配合比在不同粗糙度、灌浆压力和围压条件下具有良好的渗透特性。同时，在不同地质温度和不同侵蚀液状态下，水泥浆石体表现出良好的增强材料性能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c1a/9414665/748e82f1d7f6/materials-15-05626-g020.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c1a/9414665/d0f36128d7e3/materials-15-05626-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c1a/9414665/7c2c2d6688bd/materials-15-05626-g017.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c1a/9414665/748e82f1d7f6/materials-15-05626-g020.jpg

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本文引用的文献

1
Materials for Production of High and Ultra-High Performance Concrete: Review and Perspective of Possible Novel Materials.高性能和超高性能混凝土生产材料：新型材料的综述与展望
Materials (Basel). 2021 Jul 31;14(15):4304. doi: 10.3390/ma14154304.
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Nano Calcium Carbonate (CaCO) as a Reliable, Durable, and Environment-Friendly Alternative to Diminishing Fly Ash.纳米碳酸钙（CaCO₃）作为粉煤灰逐渐减少的可靠、耐用且环保的替代品。
Materials (Basel). 2021 Jul 2;14(13):3729. doi: 10.3390/ma14133729.
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Mechanical Characteristics of Cement Paste in the Presence of Carbon Nanotubes and Silica Oxide Nanoparticles: An Experimental Study.
碳纳米管和二氧化硅纳米颗粒存在下水泥浆体的力学特性：一项实验研究。
Materials (Basel). 2021 Mar 11;14(6):1347. doi: 10.3390/ma14061347.
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Modification Effects of Nano-CaCO₃ on Engineering Performance of Cement Grouts.纳米 CaCO₃对水泥浆工程性能的改性作用。
J Nanosci Nanotechnol. 2020 Aug 1;20(8):5043-5048. doi: 10.1166/jnn.2020.18487.