Results 21 to 30 of about 774,842 (240)

Study on the Fracture Toughness of Polypropylene–Basalt Fiber-Reinforced Concrete

open access: yesInternational Journal of Concrete Structures and Materials, 2021
To study the hybrid effects of polypropylene fiber and basalt fiber on the fracture toughness of concrete, 13 groups of notched concrete beam specimens with different fiber contents and mass ratios were prepared for the three-point bending test. Based on
Ninghui Liang   +6 more
doaj   +1 more source

Injection molded discontinuous and continuous rattan fiber reinforced polypropylene composite: Development, experimental and analytical investigations

open access: yesResults in Materials, 2022
Because of the superabundant accessibility and availability of natural fiber, the research field of natural fiber-reinforced composites is becoming an emerging interest in sustainable technology.
Md. Maruf Billah   +2 more
doaj   +1 more source

The Drawing Characteristics and Critical Length of Single Polypropylene Fiber in Vegetation Concrete [PDF]

open access: yesNature Environment and Pollution Technology, 2022
Fiber-reinforced technology is an important method to improve the stability and durability of growing basis material. To evaluate the factors affecting the interfacial strength properties of polypropylene fiber reinforced vegetation concrete, single ...
Daxiang Liu, Deyu Liu, Baohua Zhang, Bin Zhong, Yueshu Yang, Jiangang Chen, Yu Ding, Zhenyao Xia and Wennian Xu
doaj   +1 more source

A general kinetic model for the photothermal oxidation of polypropylene [PDF]

open access: yes, 2014
A general kinetic model for the photothermal oxidation of polypropylene has been derived from the basic auto-oxidation mechanistic scheme in which the main sources of radicals are the thermolysis and photolysis of the most unstable species, i.e ...
FRANÇOIS-HEUDE, Alexandre   +3 more
core   +1 more source

Polypropylene/hemp woody core fiber composites: Morphology, mechanical, thermal properties, and water absorption behaviors

open access: yesAdvances in Mechanical Engineering, 2016
Natural fiber composites composed of polypropylene, maleic anhydride-graft-polypropylene, and hemp woody core fiber were produced by two-roll mill mixing. The hemp woody core fiber was treated by alkaline.
Chakaphan Ngaowthong   +2 more
doaj   +1 more source

Studying the behavior of geopolymer concretes under repeated loadings

open access: yesJournal of Engineering and Applied Science, 2021
This article investigates utilization of polypropylene microfibers as reinforcement in geopolymer concrete to enhance the ductility characteristics since the geopolymer concrete is considered a brittle material.
Osamah M. G. Al-Kerttani, Ammar Mutar
doaj   +1 more source

Temperature dependence of the interfacial shear strength in glass reinforced polypropylene and epoxy composites [PDF]

open access: yes, 2013
We have recently reported the development of a method which allows the measurement of IFSS over a wide temperature range [6,7]. In this paper we present data obtained using the microbond test in the temperature controlled environment of a thermo ...
Thomason, James, Yang, Liu
core   +3 more sources

Mechanical properties of polypropylene fiber reinforced concrete short columns under freeze-thaw cycles [PDF]

open access: yesArchives of Civil Engineering
To investigate the effect of polypropylene fibers on the mechanical properties of concrete structures in cold regions, obtain an appropriate amount of polypropylene fiber content, and improve the frost resistance of the structure, freeze-thaw cycle tests
Zhenyu Zhang   +3 more
doaj   +1 more source

Research on Static Triaxial Mechanical Properties of New CementSoil Reinforced with Polypropylene Fiber

open access: yesAdvances in Materials Science and Engineering, 2014
Through the laboratory test, the mechanical properties of cementsoil with adding desulfurization gypsum, fly ash, and polypropylene fiber were studied. Three different percentages (0%, 0.5%, and 1.0%) of polypropylene fiber were mixed into new cementsoil
Qiang Wang   +4 more
doaj   +1 more source

The effect of polypropylene fibres within concrete with regard to fire performance in structures [PDF]

open access: yes, 2008
Purpose – The purpose of this paper is to examine the effect of various polypropylene fibre additions (types and volume) to concrete with regard to explosive spalling when subject to high temperatures similar to those experienced in building or tunnel ...
Richardson, Alan, Dave, Urmil V.
core   +1 more source

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