Results 1 to 10 of about 1,890 (144)

Macro and micro polypropylene fiber effect on reinforced concrete beams with insufficient lap splice length [PDF]

open access: yesCase Studies in Construction Materials, 2022
For longer spans of reinforced concrete elements, design codes dictate the use of sufficient lap splice length. Insufficient lap splice length decreases the flexural strength and ductility of reinforced concrete (RC) beams, while fiber addition improves ...
Süleyman Kamil Akın   +5 more
doaj   +5 more sources

Pullout behavior of polypropylene macro-synthetic fibers treated with nano-silica [PDF]

open access: yesConstruction and Building Materials, 2015
A study of the effects of nano-silica treatment on the bonding properties of macro synthetic polypropylene fibers embedded in a cement matrix is provided in the present paper as a step to improve interfacial properties of the fiber reinforced cementitious composites (FRCC).
Enrico Radi   +2 more
exaly   +8 more sources

Performance evaluation of indented macro synthetic polypropylene fibers in high strength self-compacting concrete (SCC) [PDF]

open access: yesScientific Reports
AbstractConcrete is used worldwide as a construction material in many projects. It exhibits a brittle nature, and fibers' addition to it improves its mechanical properties. Polypropylene (PP) fibers stand out as widely employed fibers in concrete. However, conventional micro-PP fibers pose challenges due to their smooth texture, affecting bonding ...
Chen Yaqin   +5 more
europepmc   +6 more sources

Mechanical Properties of Hybrid Synthetic Fiber Reinforced Self- Consolidating Concrete [PDF]

open access: yesComposites Part C: Open Access, 2021
This study investigates the fresh and mechanical properties of self-consolidating concrete (SCC) reinforced by synthetic polymer fibers. The influence of hybrid fiber reinforcement on these properties and the effect of fiber manufacturing method are ...
Sahar Y. Ghanem   +2 more
doaj   +2 more sources

An Evaluation of the Acoustic Activity Emitted in Fiber-Reinforced Concrete Under Flexure at Low Temperature [PDF]

open access: yesSensors
This study investigated the changes in the acoustic emission (AE) activity emitted in fiber-reinforced concrete (FRC) under flexure at two temperatures (25 °C and −20 °C). Seven concrete mixtures were developed with different water-binder ratios (w/b) (0.
Omar A. Kamel   +3 more
doaj   +2 more sources

The effect of polypropylene, steel, and macro synthetic fibers on mechanical behavior of cementitious composites [PDF]

open access: yesRevista de la construcción, 2021
Incorporation of fibers in concrete has been an efficient technique to prevent crack propagation, thus improving ductility, durability, toughness and strength of concrete. In this context, a comprehensive experimental study has been conducted concerning the compressive and flexural strength of fiber reinforced concrete, through preparing nine concrete ...
Özsoy Özbay, Ayşe Elif   +2 more
openaire   +4 more sources

Influence of various fibers on the physico-mechanical properties of a sustainable geopolymer mortar-based on metakaolin and slag

open access: yesEngineering Science and Technology, an International Journal, 2023
Recently, studies on sustainability and ecology have become widespread in almost all sectors. One of the most important reasons for this spread is the rapid increase in industrialization and, thus, the increase in waste caused by industries.
Mahmoud Ziada   +4 more
doaj   +1 more source

Mechanical Performance of Fiber Reinforced Cement Composites Including Fully-Recycled Plastic Fibers

open access: yesFibers, 2021
The use of virgin and recycled plastic macro fibers as reinforcing elements in construction materials has recently gained increasing attention from researchers.
Cesare Signorini, Valentina Volpini
doaj   +1 more source

Optimization of compositions of multicomponent fine-grained fiber concretes modified at different scale levels. [PDF]

open access: yesНанотехнологии в строительстве, 2017
The paper deals with perspectives of modification of cement composites at different scale levels (nano-, micro-, macro-). Main types of micro- and nanomodifiers used in modern concrete technology are presented.
NIZINA Tatyana Anatolevna,   +4 more
doaj   +1 more source

Mechanical and Durability Characteristics of Latex-Modified Fiber-Reinforced Segment Concrete as a Function of Microsilica Content

open access: yesAdvances in Civil Engineering, 2019
This study evaluated the performance of latex-modified fiber-reinforced concrete (RC) segments as a function of the substitution level of microsilica and type of reinforced fiber, to address the problem of corrosion of steel segments and steel-reinforced
Woong Kim   +5 more
doaj   +1 more source

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