Results 31 to 40 of about 31,242 (217)

Model tests on bearing characteristics of steel fiber-reinforced concrete lining of weak surrounding rock tunnel

open access: yesYantu gongcheng xuebao, 2017
In order to meet the requirements of weak surrounding rock tunnel to close rock surface as soon as possible after excavation, to adapt to a certain deformation and to provide sufficient supporting force, through the indoor model tests on the mechanical ...
CUI Guang-yao 1, WANG Dao-yuan 2,3, NI Song-zhi 1, YUAN Jin-xiu 3, MA Jun-hui 4, ZHU Chang-an 5
doaj   +1 more source

Multiaxial compressive strength of hybrid fiber reinforced concrete: A unified empirical model

open access: yesFrontiers in Materials, 2023
In engineering design, the strength analysis of concrete structures heavily depends on the compressive strength of hybrid fiber reinforced concrete (HFRC), which also has an impact on the stability and safety of the structure. The objective of this study
Jian Li   +5 more
doaj   +1 more source

Post-cracking strength classification of macro-synthetic fibre reinforced concrete for sleeper application

open access: yes, 2021
Nowadays, timber and concrete are among the most extensively used materials for railway sleepers, characteristically considered as a crucial track component.
Mirza, Olivia (R13978)   +5 more
core   +1 more source

Study on Performance of Steel Fiber Concrete Bridge Pier Specimens under Horizontal Cyclic Loading

open access: yesMATEC Web of Conferences, 2017
Because of that steel fiber can effectively prevent the extension and development of small cracks in the concrete, steel fiber reinforced concrete has good toughness and tensile strength.
Baiben Chen, Zhongren Feng, Xiaoji Shi
doaj   +1 more source

Influence on compressive and tensile strength properties of fiber-reinforced concrete using polypropylene, jute, and coir fiber

open access: yesJournal of the Mechanical Behavior of Materials, 2023
This research work is related to the use of environment friendly materials like fibers of coir, polypropylene and jute in concrete. An economical reinforced concrete is produced by reducing the diameter of steel bar by using fiber ropes. We have examined
Tariq Khawaja Adeel   +3 more
doaj   +1 more source

Analysis of glass fiber reinforced cement (GRC) fracture surfaces

open access: yes, 2010
Glass fiber reinforced cement (GRC) is a composite material produced by the union of a cement mortar matrix and chopped glass fibers. Its good mechanical properties deteriorate with time. This phenomenon has been studied performing a tensile test program
Cendón Franco, David Ángel   +3 more
core   +1 more source

Effective Structural Concrete Repair, Volume 1 of 3, Repair of Impact Damaged Prestressed Concrete Beams with CFRP;TR-428 , March 2004 [PDF]

open access: yes, 2004
Structural concrete is one of the most commonly used construction materials in the United States. However, due to changes in design specifications, aging, vehicle impact, etc.

core  

Post-fire flexural tensile strength of macro synthetic fibre reinforced concrete

open access: yes, 2021
Tensile cracks in plain concrete occur and propagate when the tensile stress exceeds the bond strength of the cement. These cracks are generally bridged by coarse aggregates however the inclusion of fibres in concrete provides significant additional ...
Mirza, Olivia (R13978)   +3 more
core   +1 more source

Fracture Behavior of Fiber-Reinforced Concrete Assessed Using a High-Speed Camera

open access: yesBuildings
The brittle characteristics of fiber-reinforced concrete make it difficult to capture the time-varying properties during its flexural failure. This study employed high-speed imaging to investigate the effects of polypropylene fiber, polyvinyl alcohol ...
Xianzhang Wang   +5 more
doaj   +1 more source

Effective Structural Concrete Repair, Volume 2 of 3, Use of FRP to Prevent Chloride Penetration in Bridge Columns; TR-428, March 2004 [PDF]

open access: yes, 2004
Structural concrete is one of the most commonly used construction materials in the United States. However, due to changes in design specifications, aging, vehicle impact, etc.

core  

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