Results 11 to 20 of about 17,530 (271)
Shock and Vibration, 2021 Shotcrete is often subject to poor ductility and cracking problems, particularly under high stresses. In order to deal with these issues, the feasibility of adding polypropylene macrofibers to shotcrete was verified.
Fenghui Li +4 more
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Mechanical Properties and Microstructure of Shotcrete under High Temperature
Applied Sciences, 2021 High temperature is recognized as one of the extreme environments in the application of shotcrete which significantly deteriorate the performance of shotcrete.
Guoming Liu +4 more
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Nordic Concrete Research, 2022 Fibre-reinforced shotcrete is the most common support method for hard rock tunnels in the Nordic countries. The design of shotcrete is often based on empirical methods or simplified analytical equations, which neglect variations in mechanical properties ...
Sjölander Andreas, Ansell Anders
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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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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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Estimation of corrosion resistance of curing mixtures based on coal-bearing rocks from Western Donbass [PDF]
, 2011 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.
Bagcivan, N. +8 more
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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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