氧化石墨烯和水泥基复合注浆材料胶结碎石的力学性能试验研究

doi:10.13722/j.cnki.jrme.2021.1319

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摘要为探索高效、绿色的注浆材料，将水泥基浆体质量占比为0.03%的工业级氧化石墨烯配合上质量占比为12.5%的粉煤灰，混入胶结材料中加固碎裂岩体，并开展单轴压缩、声发射监测和电镜扫描试验，研究氧化石墨烯复合水泥基胶结材料加固碎裂岩体的强度和变形特性，以及破坏后的宏、微观特征，探讨氧化石墨烯对水泥基胶结材料的优化作用和应用前景。试验结果表明：改性后的浆液可以有效提升胶结后碎裂岩体的抗压强度(提高12.6%～22.5%)。氧化石墨烯可以促进水泥的水化反应，引导水化产物在石墨烯纳米片表面生长，进而优化注浆材料中的孔隙结构，并缩减浆体和碎裂岩体界面间的微裂隙。声发射、电镜表征和分形分析揭示掺入氧化石墨烯可以有效地减小试样在破坏过程中的微损伤程度，保证胶结后试样在失稳破坏过程中的完整性，增强材料的韧性及其抗负载作用的能力。

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	高远
	靖洪文
	喻梓轩
	吴疆宇
	尹乾
	符光平

关键词 ：岩石力学, 工业级氧化石墨烯, 水泥, 粉煤灰, 碎裂岩体, 力学性能

Abstract：In order to explore efficient and green grouting materials，the industrial-grade graphene oxide(GO) with a mass ratio of 0.03% of the cement-based slurry combined with fly ash with a mass ratio of 12.5% were mixed into cement-based grouting materials to strengthen the crushed stone. The uniaxial compression tests，acoustic emission(AE) monitoring and scanning electron microscopy(SEM) characterization，were then carried out to study the strength and deformation performance of the cemented specimens，and the macro-and micro-characteristics after the failure of the cemented crushed stone were investigated. The optimization effects and application prospects of GO on cement-based materials are discussed. The results show that the modified slurry can effectively increase the compressive strength of the cemented crushed stone by about 12.6%–22.5%. GO can promote the hydration reaction of cement and guide hydration products to grow on the surface of graphene nanosheets，thereby optimizing the pore structure in the grouting materials and reducing the micro-cracks between the slurry and the crushed stone interface. AE monitoring results，SEM characterization，and fractal analysis further revealed that the incorporation of GO could effectively reduce the degree of micro-damage of the sample during the failure process，ensure the integrity of the sample during the destabilization failure process after cemented，enhance the material toughness and reinforce its ability to resist the compressive load.

Key words： rock mechanics industrial graphene oxide cement fly ash crushed stone mechanical properties

引用本文:

高远，靖洪文，喻梓轩，吴疆宇，尹乾，符光平. 氧化石墨烯和水泥基复合注浆材料胶结碎石的力学性能试验研究[J]. 岩石力学与工程学报, 2022, 41(9): 1898-1909.
GAO Yuan，JING Hongwen，YU Zixuan，WU Jiangyu，YIN Qian，FU Guangping. Experimental study on the mechanical properties of crushed stone cemented by graphene oxide and cement-based composite grouting materials. , 2022, 41(9): 1898-1909.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2021.1319 或 http://rockmech.whrsm.ac.cn/CN/Y2022/V41/I9/1898

[26]	AI T，ZHANG R，ZHOU H W，et al. Box-counting methods to directly estimate the fractal dimension of a rock surface[J]. Applied Surface Science，2014，314：610–621.
[12]	LUONG D X，BETS K V，ALGOZEEB W A，et al. Gram-scale bottom-up flash graphene synthesis[J]. Nature，2020，577(7792)：647–651.
[10]	CHEN S J，LI C Y，WANG Q，et al. Reinforcing mechanism of graphene at atomic level：Friction，crack surface adhesion and 2D geometry[J]. Carbon，2017，114：557–565.
[14]	TALBOT A N， RICHART F E，The strength of concrete and its relation to the cement，aggregate and water[J]. Bulletin，1923，(7)：1–118.
[2]	谢和平. “深部岩体力学与开采理论”研究构想与预期成果展望[J]. 工程科学与技术，2017，49(2)：1–16.(XIE Heping. Research framework and anticipated results of deep rock mechanics and mining theory[J]. Advanced Engineering Sciences，2017，49(2)：1–16.(in Chinese))
[5]	李术才，郑卓，刘人太，等. 考虑浆‐岩耦合效应的微裂隙注浆扩散机制分析[J]. 岩石力学与工程学报，2017，36(4)：812–820.(LI Shucai，ZHENG Zhuo，LIU Rentai，et al. Analysis on fracture grouting mechanism considering grout-rock coupling effect[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(4)：812–820.(in Chinese))
[3]	康红普，姜鹏飞，黄炳香，等. 煤矿千米深井巷道围岩支护–改性–卸压协同控制技术[J]. 煤炭学报，2020，45(3)：845–864. (KANG Hongpu，JIANG Pengfei，HUANG Bingxiang，et al. Roadway strata control technology by means of bolting-modification-destressing in synergy in 1 000 m deep coal mines[J]. Journal of China Coal Society，2020，45(3)：845–864.(in Chinese))
[7]	LU C，LU Z，LI Z，et al. Effect of graphene oxide on the mechanical behavior of strain hardening cementitious composites[J]. Construction and Building Materials，2016，120：457–464.
[9]	MOHAMMED A，SANJAYAN J G，DUAN W H，et al. Incorporating graphene oxide in cement composites：A study of transport properties[J]. Construction and Building Materials，2015，84：341–347.
[13]	ISRM. Suggested methods for the quantitative description of discontinuities in rock masses[M]. Pergamon：Oxford University Press，1981：3–52.
[15]	GAO Y，JING H，ZHOU Z.，Fractal analysis of pore structures in graphene oxide-carbon nanotube based cementitious pastes under different ultrasonication[J]. Nanotechnology Reviews，2019，8(1)：107–115.
[17]	李元辉，刘建坡，赵兴东，等. 岩石破裂过程中的声发射b值及分形特征研究[J]. 岩土力学，2009，30(9)：2 559–2 563.(LI Yuanhui，LIU Jianpo，ZHAO Xingdong，et al. Study on b-value and fractal dimension of acoustic emission during rock failure process[J]. Rock and Soil Mechanics，2009，30(9)：2 559–2 563.(in Chinese))
[19]	吴疆宇，靖洪文，浦海，等. 分形矸石胶结充填体的宏细观力学特性[J]. 岩石力学与工程学报，2021，40(10)：2 083–2 100.(WU Jiangyu，JING Hongwen，PU Hai，et al. Macroscopic and mesoscopic mechanical properties of cemented waste rock backfill using fractal gangue[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(10)：2 083–2 100.(in Chinese))
[22]	李守巨，李德，武力，等. 非均质岩石单轴压缩试验破坏过程细观模拟及分形特性[J]. 煤炭学报，2014，39(5)：849–854.(LI Shouju，LI De，WU Li，et al. Meso-simulation and fractal characteristics for uniaxial compression test of inhomogeneous rock[J]. Journal of China Coal Society，2014，39(5)：849–854.(in Chinese))
[20]	王传洋，杨春和，衡帅，等. 压缩荷载下泥岩裂缝演化规律的 CT 试验研究[J]. 岩土力学，2015，36(6)：1 591–1 597.(WANG Chuanyang，YANG Chunhe，HENG Shuai，et al. CT test for evolution of mudstone fractures under compressive load[J]. Rock and Soil Mechanics，2015，36(6)：1 591–1 597.(in Chinese))
[23]	梁正召，唐春安，唐世斌，等. 岩石损伤破坏过程中分形与逾渗演化特征[J]. 岩土工程学报，2007，29(9)：1 386–1 391.(LIANG Zhengzhao，TANG Chunan，TANG Shibin，et al. Characteristics of fractal and percolation of rocks subjected to uniaxial compression during their failure process[J]. Chinese Journal of Geotechnical Engineering，2007，29(9)：1 386–1 391.(in Chinese))
[25]	OTSU N. A threshold selection method from gray-level Histograms[J]. IEEE Transactions on Systems，Man and Cybernetics，1979，9(1)：62–66.
[27]	WEI B，ZHAO X，WANG L，et al. Analysis of gear surface morphology based on gray level co-occurrence matrix and fractal dimension[J]. Plosone，2019，14(10)：e0223825.
[8]	LONG W J，GU Y，XIAO B X，et al. Micro-mechanical properties and multi-scaled pore structure of graphene oxide cement paste：Synergistic application of nanoindentation，X-ray computed tomography，and SEM-EDS analysis[J]. Construction and Building Materials，2018，179：661–674.
[18]	艾婷，张茹，刘建锋，等. 三轴压缩煤岩破裂过程中声发射时空演化规律[J]. 煤炭学报，2011，36(12)：2 048–2 057.(AI Ting，ZHANG Ru，LIU Jianfeng，et al. Space-time evolution rules of acoustic emission locations under triaxial compression[J]. Journal of China Coal Society，2011，36(12)：2 048–2 057.(in Chinese))
[1]	佘诗刚，林鹏. 中国岩石工程若干进展与挑战[J]. 岩石力学与工程学报，2014，33(3)：433–457.(SHE Shigang，LIN Peng. Some developments and challenging issues in rock engineering field in China[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(3)：433–457.(in Chinese))
[4]	管学茂，张海波，杨政鹏，等. 高性能无机–有机复合注浆材料研究[J]. 煤炭学报，2020，45(3)：902–910.(GUAN Xuemao，ZHANG Haibo，YANG Zhengpeng，et al. Research of high performance inorganic-organic composite grouting materials[J]. Journal of China Coal Society，2020，45(3)：902–910.(in Chinese))
[6]	RODRIGUES F A，JOEKES I. Cement industry：sustainability，challenges and perspectives[J]. Environmental Chemistry Letters，2011，9(2)：151–166.
[11]	GAO Y，JING H，FU G，et al. Studies on combined effects of graphene oxide-fly ash hybrid on the workability，mechanical performance and pore structures of cementitious grouting under high W/C ratio[J]. Construction and Building Materials，2021，281：122578.
[16]	HAN J，WANG S，ZHU S，et al. Electrospun core-shell nanofibrous membranes with nanocellulose-stabilized carbon nanotubes for use as high-performance flexible supercapacitor electrodes with enhanced water resistance，thermal stability，and mechanical toughness[J]. ACS Applied Materials and Interfaces，2019，11(47)：44 624–44 635.
[21]	BAGDE M N，RAINA A K，CHAKRABORTY A K，et al. Rock mass characterization by fractal dimension[J]. Engineering Geology，2002，63(1/2)：141–155.
[24]	ZHOU H W，XIE H. Direct estimation of the fractal dimensions of a fracture surface of rock[J]. Surface Review and Letters，2003，10(5)：751–762.