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Experimental study on sulfate resistance of shotcrete with different liquid accelerators
Case Studies in Construction Materials, 2022 The shotcrete used as the initial lining of tunnel was easily damaged by sulfate attack in groundwater environment. The purpose of this study was mainly to explore the deterioration and mechanism of shotcrete mixed with different liquid accelerators ...
Renhe Yang +7 more
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Irrigation channel lining using shotcrete with additives [PDF]
Нанотехнологии в строительстве, 2022 Introduction. Shotcrete lining is the most economical and quite fully mechanized in production among all the known varieties of concrete linings. The construction practice of hydraulic structures has accumulated numerous examples of the use of a wide ...
Zhangazy N. Moldamuratov +4 more
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Study on the effect of new type liquid accelerator on the performance of shotcrete [PDF]
Fracture and Structural Integrity, 2017 Shotcrete is an essential preliminary support means in New Austrian Tunneling Method (NATM) construction and plays a very important role in controlling the stability of surrounding rock.
Luchen Zhang +3 more
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Estimation of corrosion resistance of curing mixtures based on coal-bearing rocks from Western Donbass [PDF]
, 2016 Purpose. Substantiation of possible use of coal-bearing rocks as a replacement for a part of the filler in the preparation of shotcrete for lining of mine workings in the conditions of mineralized mine water. Methods.
Harkusha, V, Kovalenko, V
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Research Progress of Mine Shotcrete Dust Control Technology
Meikuang Anquan, 2020 Shotcrete technology, as the main mean of the new Austrian tunneling method, has been widely used in mining roadway tunneling support. Dust is unavoidable during the shotcreting process, and shotcrete dust is one of the main sources of dust in coal mines.
CHENG Weimin, LIU Guoming, CHEN Lianjun
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Influence of liquid accelerators on shotcrete in karst area tunnels
Case Studies in Construction Materials, 2022 Tunnel constructions built in karst areas are liable to calcium leaching, which can lead to CaCO3 deposits in tunnel drainage pipes and water gutters, resulting in the blockage of tunnel drainage systems.
Ziwei Zhang +3 more
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Load Capacity of steel arches with shotcrete coating [PDF]
E3S Web of Conferences, 2019 The shotcrete technology (application of a concrete layer) is widely used in coal mines. The applied layer of shotcrete to the underground workings support, changes the load capacity of the entire supporting system (and its elements).
Ficek Paweł +3 more
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Influence of Mix Proportions on Rheological Properties, Air Content of Wet Shotcrete—A Case Study
Applied Sciences, 2021 To study the influence of different mix proportions on the fresh properties of wet shotcrete, the rheological properties and air content of wet shotcrete with different admixtures before pumping were measured.
Jun Xie +3 more
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LABORATORY TESTS ON THE STRENGTHENING OF WET-MIX SHOTCRETE LINING WITH THE USE OF NANOMATERIALS
Rudarsko-geološko-naftni Zbornik, 2021 Adding nanomaterials to concrete extends the size range of constituent particles well into nano-scale dimensions, which could help the compacting of particles in cement-based materials.
Hamid Kalhori +4 more
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International Journal of Mining Science and Technology, 2020 Four groups of numerical models of Brazilian tests on rock-shotcrete interfaces were successfully conducted by PFC2D. The tensile strength and Young’s modulus of shotcrete were considered. Six different undulations of rock-shotcrete interface were set up.
Jiadong Qiu +5 more
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