Results 61 to 70 of about 549 (169)

Analysis on the influence factor of low-strength wet shotcrete in frigid mining area

open access: yes, 2020
Wet shotcrete technology is being gradually used in roadway support in frigid mining areas. Thus, problems such as low strength, fragility, and high repair rate have also emerged.
Sun, Wei   +3 more
core   +1 more source

Radiation Shielding Properties of Shotcrete

open access: yes, 2014
Shotcrete is a concrete spraying of concrete or mortar that may be accomplished through either a dry- or wet-mix process. It is made of normal weight aggregates which have a density of approximately 2323 kg/$m^3$.
Gunoglu, K.   +4 more
core   +1 more source

Impact behaviour of fiber reinforced wet-mix shotcrete

open access: yes, 1998
The use of shotcrete for ground support in mines and tunnels has increased dramatically within the past ten years. It has long been used in the construction of dams, canals, and reservoirs, in the repair and rehabilitation of marine, highway and ...
Gupta, Prabhakar
core  

Strengenthening of concrete bridges using reinforced sprayed concrete under state and fatigue loading.

open access: yes, 1997
PhDThe Department of Transport's bridge assessment programme has revealed that a significant number of bridges are not strong enough to carry the much heavier commercial axle loads that will soon be applied to UK bridges. To address this problem, this
Dung, Pham-Thanh
core  

Advancements in shotcrete technology

open access: yes, 2015
Shotcrete is a cement-based mixture pneumatically projected at high velocity onto a receiving surface. The material component of shotcrete is essentially concrete or sometimes mortar, but the process of shotcrete application is unique.
A. Guida   +5 more
core   +1 more source

Plastic shrinkage in dry mix shotcrete

open access: yes, 1999
Plastic shrinkage cracking of dry-mix shotcrete is a common problem encountered within the construction industry. Dry-mix shotcrete is used in a wide variety of applications most commonly, the repair and rehabilitation of deteriorated concrete ...
Campbell, Kevin Neil
core  

Predicting Pumpability and Shootability of Crushed Aggregate Wet-Mix Shotcrete Based on Rheological Properties

open access: yes, 2020
This study aims to estimate the pumpability and shootability of wet-mix shotcrete (WMS) made with crushed aggregates and various admixtures such as silica fume, fly ash, ground granulated blast furnace slag (GGBFS), metakaolin, and steel fiber based on ...
Pangil Choi   +2 more
core  

Investigations regarding the pumping process of wet-mix shotcrete improvement and upgrading of underground traffic structures

open access: yes, 2019
Workability is a physical property of fresh concrete, which can’t be described with only one single parameter or measured with one single test method. Pumpability and sprayability plays an important role for wet-mix sprayed concrete. The material must be
Kusterle, Wolfgang   +5 more
core  

Experimental Study on Basic Mechanical Properties of Steel Fiber-Reinforced Siliceous Wet Shotcrete

open access: yes, 2018
In order to solve the problem of low strength and easy cracking of shotcrete in permanent support of tunnel single shell lining, the effects of steel fiber-reinforced siliceous on mechanical properties of wet shotcrete were investigated by the tests of ...
He Wang   +4 more
core   +1 more source

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