Results 21 to 30 of about 1,890 (144)

Early-age tensile constitutive relationships for steel and polypropylene fiber reinforced concrete [PDF]

open access: yes, 2021
arly-age fracture tests are conducted on concrete beams with discrete steel, macro polypropylene and blends of macro and micro polypropylene fibers. The fracture behavior with aging of the concrete matrix containing 0.66% volume fraction of fibers is ...
Kolluru V.L. Subramaniam   +3 more
core   +1 more source

Effect of macro synthetic polypropylene fiber utilization on some fresh and hardened properties of concrete mixtures [PDF]

open access: yes, 2020
Bu çalışmada, makro sentetik polipropilen lif kullanımının beton karışımlarının taze ve sertleşmiş hal özelliklerine etkisi incelenmiştir. Lifli karışımlarda toplam hacmin %0,1, %0,2, %0,3, %0,4 ve %0,5’i oranlarında uzunluğu 50±2 mm olan makro sentetik ...
Latıfı, Mujeebul Rahman
core  

Cohesive Stress Transfer and Shear Capacity Enhancements in Hybrid Steel and Macro-Polypropylene Fiber Reinforced Concrete [PDF]

open access: yes, 2019
The link between the fracture behavior and shear capacity of fiber reinforced concrete composite is investigated. The synergy between hooked steel fibers and continuously embossed macro-synthetic fibers in providing improved fracture and post-cracking ...
Gali, Sahith, K V L, Subramaniam
core   +1 more source

A Study of the Shear Behavior of Concrete Beams with Synthetic Fibers Reinforced with Glass and Basalt Fiber-Reinforced Polymer Bars

open access: yesBuildings
The use of synthetic materials with high corrosion resistance in a concrete matrix yields structures that are more durable and suitable for use in aggressive environments, eliminating the need for frequent maintenance.
Isabela Oliveira Duarte   +3 more
doaj   +1 more source

Hierarchical fiber bundle strength statistics [PDF]

open access: yes, 2012
Multi-scale modeling is currently one of the most active research topics in a wide range of disciplines. In this thesis we develop innovative hierarchical multi-scale models to analyze the probabilistic strength of fiber bundle structures.
Alsaeed Mahmoud Abdalrahman, Tamer
core   +1 more source

Performance Evaluation of Polypropylene Recycled Fibers in Concrete

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Recycled granules are obtained from the waste materials generated during the production of polypropylene macro synthetic fibers (PF) used in concrete. In this study, PF were obtained again from these granules, and their reuse as fiber reinforcement in ...
Aylin Özodabaş, Abdul Samed Demirhan
doaj   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

open access: yesAdvanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine   +5 more
wiley   +1 more source

Impact resistance of concrete using dovetailed fibres and type 2 synthetic fibres [PDF]

open access: yes, 2015
This paper investigates the relative performance of new dovetailed (DT) cross section fibres with regard to impact resistance and energy absorption of concrete.
Richardson, Alan, Batey, David
core  

Structural Behavior of Reinforced Shotcrete Slabs Incorporating Plastic Fibers

open access: yesTikrit Journal of Engineering Sciences
Shotcrete technology is developed to be used in places difficult to reach by traditional methods. The technique was developed to apply to strengthening work, slope stabilization, tunnel lining, and constructed structural members.
Abdulfatah A. Jawhar   +2 more
doaj   +1 more source

An Embodied Paper‐Based Microfluidic Al‐Air Battery for Enduring Untethered Insect‐Scale Robots

open access: yesAdvanced Science, EarlyView.
This work presents a centimeter‐scale microfluidic aluminum–air battery (MFAAB) with dual‐surface anode and F−‐mediated byproduct decomposition. The design enables a high capacity of 2697.05 mAh/g Al and delivers tens of milliwatts to power LEDs, motors, and a toy car.
Yun Yang   +5 more
wiley   +1 more source

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