Results 101 to 110 of about 2,649 (229)

Finite Element Analysis of Steel-Polypropylene Hybrid Fiber Concrete Penstock

Renmin Zhujiang, 2020
In order to improve the bearing capacity of steel-lined reinforced concrete penstock and ensure the safety and durability of the penstock, it is planned to mix hybrid fibers into the wrapped concrete of penstock for crack control.
HE Shan, WU Hailin, SI Dongdong
doaj  

Cold‐curing effects on the strength development and sulfuric acid resistance of basalt fiber‐reinforced hybrid alkali‐activated slag mortars

Structural Concrete, EarlyView.
Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci, Murat Dener, Ahmet Benli, Bilal Balun   +3 more
wiley   +1 more source

Rotation capacity of continuous reinforced concrete slab strips revisited

Structural Concrete, EarlyView.
Abstract Rotation capacity is a key characteristic of statically indeterminate reinforced concrete structures, as it (i) enables bending moment redistributions, whether intentionally introduced through optimized reinforcement layouts or arising from unforeseen self‐equilibrated stress states, and (ii) promotes large rotations at failure load, thereby ...
Nathalie Reckinger, Karel Thoma, Walter Kaufmann   +2 more
wiley   +1 more source

Investigation on the high-temperature thermal damage mechanism of hybrid steel-polypropylene fiber reinforced UHPC using X-ray computed tomography

Developments in the Built Environment
To investigate the influence mechanism of hybrid fibers on the high temperature damage of ultra-high performance concrete (UHPC), this study employed micro-scale X-ray computed tomography (X-CT) to evaluate the high temperature damage process of UHPC ...
Yajun Lv, Juzheng Liu, Heng Yang, Leigao Zuo, Peng Lu, Weizhun Jin   +5 more
doaj   +1 more source

MECHANICAL PROPERTIES OF HYBRID FIBER REINFORCED CONCRETE FOR PAVEMENTS

International Journal of Research in Engineering and Technology, 2013
The effect of addition of mono fibers and hybrid fi bers on the mechanical properties of concrete mixtu re is studied in the present investigation. Steel fibers of 1% and polypropylene fibers 0.036% were added individually to the concr ete mixture as mono fibers and then they were added together to form a hybrid fibe r reinforced concrete.
openaire   +1 more source

The challenges of GFRP RC beam design for limit states

Structural Concrete, EarlyView.
Abstract Glass fiber reinforced polymer (GFRP) bars are used ever more frequently in concrete construction due to their non‐corrosive and anti‐magnetic properties. Their research over the past decades focused on fundamental questions, such as the design aspects of beams under flexural loads.
Szabolcs Szinvai, Tamás Kovács
wiley   +1 more source

Three-dimensional microscale numerical simulation of fiber-reinforced concrete under sulfate freeze-thaw action

Case Studies in Construction Materials
To investigate the sulfate freeze-thaw resistance of hybrid fiber-reinforced concrete, a three-dimensional microscale stochastic fiber-reinforced concrete model was proposed. The hybrid fiber and aggregate were generated randomly in the microscale model.
Lei Gan, Guohao Liu, Jun Liu, Hongwei Zhang, Xianwei Feng, Lechen Li   +5 more
doaj   +1 more source

Experimental and numerical investigation on the flexural response of GFRP‐reinforced SFRC beams

Structural Concrete, EarlyView.
Abstract In order to address the challenges related to the deformability and ductility of concrete beams reinforced with fiber reinforced polymer (FRP) bars, an alternative solution involving steel fiber reinforced concrete (SFRC) has been proposed. In the present study, a total of seven beams—including one steel‐reinforced reference beam and six glass
İsmet Vapur, İlker Fatih Kara, Ashraf Fawzy Ashour   +2 more
wiley   +1 more source

An Experimental Investigation on the Effect of Incorporating Natural Fibers on the Mechanical and Durability Properties of Concrete by Using Treated Hybrid Fiber-Reinforced Concrete Application

Fibers
This research explores the use of treated hybrid natural fibers—wheat straw and bamboo—as reinforcements in concrete for pavement applications. Motivated by environmental and economic benefits, the study investigates how these fibers can enhance the ...
Anteneh Geremew, Amelie Outtier, Pieter De Winne, Tamene Adugna Demissie, Hans De Backer   +4 more
doaj   +1 more source

Flexural And Toughness Behaviour Of Hybrid Fiber-Reinforced Concrete

Concrete is the most widely used construction material in the world, but its inherent brittleness and low tensile strength often limit its performance in structural applications. To overcome these limitations, the addition of fibres into the concrete mix has emerged as an effective technique to improve mechanical properties such as tensile strength ...
Challa Prasad, Sk.Abdulkareem
openaire   +2 more sources