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Fluidity Influencing Factors Analysis and Ratio Optimization of New Sealing Materials Based on Response Surface Method
Geofluids ( IF 1.7 ) Pub Date : 2021-03-03 , DOI: 10.1155/2021/5538302
Xin Guo 1 , Sheng Xue 1 , Yaobin Li 1 , Chunshan Zheng 1 , Gege Yang 2
Affiliation  

The borehole sealing material is one of the key factors affecting the gas drainage effect of a borehole. This paper takes the compressive strength, fluidity, expansion rate, and setting time of the sealing material as the main research indicators and explores the influence of each key influencing factor on the performance of the high-fluid sealing material through the single factor experiment method. Using the Design-Expert 8.0.5 Trial software designed orthogonal experiments and establishing a quadratic model between liquidity and each test factor, which showed the impact of each key factor on the fluidity. Finally, by adjusting the amount of admixtures, the optimal ratio of high-fluidity borehole sealing materials was obtained. The results showed that the key factors had the following order of significance: . With the water-cement ratio and the amount of water reducing agent increase, the fluidity of the material will increase; and with the increase of the retarder and expansion agent, the fluidity will decrease. In actual use, the fluidity is the main factor, but the expansion rate, compressive strength, and setting time are also considered. The optimal percentages were found for the high-fluidity borehole sealing material: a water-cement ratio of 1, along with 0.03% retarder, 0.5% water reducer, and 8% expansion agent. These research results could provide a reference for improving the performance of gas drainage borehole sealing materials and enhancing the effect of gas drainage.

中文翻译:

基于响应面法的新型密封材料流动性影响因素分析及配比优化

井眼密封材料是影响井眼瓦斯抽放效果的关键因素之一。本文以密封材料的抗压强度,流动性,膨胀率和凝固时间为主要研究指标,并通过单因素实验方法探讨了各主要影响因素对高流体密封材料性能的影响。使用Design-Expert 8.0.5试用软件设计了正交实验,并在流动性和每个测试因子之间建立了二次模型,该模型显示了每个关键因子对流动性的影响。最后,通过调节掺合剂的量,获得了高流动性的井眼密封材料的最佳比例。结果表明,关键因素具有以下重要性顺序:随着水灰比和减水剂用量的增加,材料的流动性将增加;随着缓凝剂和膨胀剂的增加,流动性降低。在实际使用中,流动性是主要因素,但还应考虑膨胀率,抗压强度和凝固时间。对于高流动性的井眼密封材料,发现了最佳百分比:水灰比为1,以及0.03%的缓凝剂,0.5%的减水剂和8%的膨胀剂。这些研究结果可为提高瓦斯抽放井眼密封材料的性能,提高瓦斯抽放效果提供参考。
更新日期:2021-03-03
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