Results 1 to 10 of about 1,267 (161)

Field application and diffusion law of grouting slurry in floor aquifer of a coal mine [PDF]

open access: yesScientific Reports
Floor aquifers are responsible for approximately 55% of water inrush incidents in coal mines. As mining depths increase, the risk posed by confined floor aquifers becomes more severe.
Cao Zhengzheng   +6 more
doaj   +2 more sources

Nonlinear flow characteristics of cement grout in fractures with varying geometries [PDF]

open access: yesScientific Reports
The interplay between the non-Newtonian rheology of cement grout and fracture geometry exerts a critical influence on grout penetration efficiency and reinforcement performance in fractured rock masses.
Xifeng Li   +4 more
doaj   +2 more sources

Optimization of synchronous grout properties and construction parameters for shield tunnels in soft soil [PDF]

open access: yesScientific Reports
Improper synchronous grouting materials and construction parameters may cause the shield segments to float, resulting in tunnel dislocation, open joints, uneven deformation, and water leakage.
Hui Jin   +4 more
doaj   +2 more sources

The effect of magnetization conditions on the stability of cement grout

open access: yesCase Studies in Construction Materials, 2022
As a green technology, magnetized water (MW) is widely used in the mixing of cement-based materials to improve the performance of the mixture. In the current study, regular tap water (RW) and cement grout are magnetized by lab-built magnetization device.
Huan-xiao Hu, Chao Deng, Wei Chen
doaj   +1 more source

Study on hydration process of red clay cement grout and micro-morphology of grout stone

open access: yesMeikuang Anquan, 2023
In order to study the hydration process of red clay cement grout prepared by red clay in the southwest Wumeng mountain area in southwest China and the micro-morphology of the grout stone, the hydration heat characteristics of red clay cement grout were ...
HE Wen
doaj   +1 more source

The Study of Flowability and The Compressive Strength of Grout/Mortar Proportions for Pre- placed Concrete Aggregate (PAC) [PDF]

open access: yesMATEC Web of Conferences, 2019
This experimental study is focused on the performance of appropriate grout/mortar for pre-placed aggregate concrete (PAC) incorporating superplasticizer in the mortar mixture regarding the flowability and strength of grout or mortar.
Chairunnisa Nursiah, Fardheny Arie Febry
doaj   +1 more source

Characterizing the Mechanical Properties of Cementitious Emulsion Grout for Semi-Flexible Mixture [PDF]

open access: yesE3S Web of Conferences, 2021
Grout is a cement-based material with high strength and workability that allowing it to be injected into small cracks or leaky areas. It is usually used to patch concrete cracks or holes, but it may also be used to fill voids under metal bases or digging
Jawad Fatima A.   +2 more
doaj   +1 more source

Experimental study on performance of waste autoclaved blocks and coal gangue in coal mine goaf ground grouting improvement

open access: yesMeitan kexue jishu, 2023
With the development of society, a large number of waste autoclaved blocks and gangue on the surrounding environment, in order to protect the environment and reuse resources, these solid wastes have been effectively utilized in the field of grouting ...
Lianwei REN   +4 more
doaj   +1 more source

Influence of Coupling Effects between Gravel Soil Porosity and Cement Grout Weight on Diffusion Laws and Morphologies of Penetration Grouting

open access: yesApplied Sciences, 2022
The practice and theory of grouting engineering show that both injected medium porosity and grouting fluid weight play an important influence on the diffusion law and morphology of penetration grouting.
Zhiquan Yang   +10 more
doaj   +1 more source

Effect of aggregate gradation and bitumen type on mechanical properties of semi-flexible asphalt mixtures

open access: yesCase Studies in Construction Materials, 2023
Semi-Flexible Asphalt (SFA) mixture is a wearing course in which Open-Graded Asphalt (OGA) mixes having air voids of 20–35% are grouted with cement mortar. The grout consists of cement, sand, superplasticizer, and water.
Doma Hemanth Kumar   +3 more
doaj   +1 more source

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