Lightweight Concrete Reinforced with Polypropylene Fibers

Hamad, Ali Jihad

doi:10.11591/ijaas.v4.i2.pp45-49

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…Several researchers have shown the efficiency of PP fibers in increasing the tensile strength of foam concrete beams. Hamad (2015) studied the mechanical properties of lightweight concrete reinforced with PP fibers to investigate the effect of PP fibers on mechanical properties of lightweight foam concrete. The author concluded that the workability of lightweight foam concrete reduced by addition PP fibers.…”

Section: Literature Reviewmentioning

confidence: 99%

Behavior of polypropylene fiber reinforced foam concrete beams laterally reinforced with/without glass fiber grid

AL-Kasasbeh

Allouzi

2020

IJSI

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PurposeThis research is part of a project that aims to investigate using foamed concrete structurally in houses. Foamed concrete has a porous structure that makes it light in weight, good in thermal insulation, good in sound insulation and workable.Design/methodology/approachAn experimental program is conducted in this research to investigate the behavior of polypropylene fiber reinforced foam concrete beams laterally reinforced with/without glass fiber grid.FindingsThe results proved the effectiveness and efficiency of using glass fiber grid as lateral reinforcements on the shear strength of reinforced foam concrete ribs, in reducing the cracks width and increasing its shear capacity, contrary to using glass fiber grid of reinforced foam concrete beams since glass fiber grid did not play good role in beams.Originality/valueLimited literature is available regarding the structural use of foam concrete. However, work has been done in many countries concerning its use as insulation material, while limited work was done on structural type of foam concrete.

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Section: Literature Reviewmentioning

confidence: 99%

Behavior of polypropylene fiber reinforced foam concrete beams laterally reinforced with/without glass fiber grid

AL-Kasasbeh

Allouzi

2020

IJSI

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“…Graybeal ve Davis [36], ultra yüksek dayanımlı lifli betonlar için küp ve silindir numuneler üretmişler ve elde ettikleri deney sonuçlarını karşılaştırdıklarında, lifli betonların karışım dizaynına bağlı olarak küp ve silindir deneylerinden elde edilen basınç dayanımı dönüşüm katsayılarının değişebileceğini bildirmişlerdir. Hamad [37], cam lif ve hafif agrega katkılı beton numunelerin basınç dayanımlarını karşılaştırdığı farklı boyutlardaki silindir ve küp numunelerden elde ettiği sonuçların numune şekli, boyutu ve lif oranına bağlı olarak değiştiğini belirtmiş ve göz önüne alınan her durum için farklı dönüşüm katsayıları elde etmiştir.…”

Section: Deneysel Veri Tabanıunclassified

Elastic Modulus Prediction for Fiber-Reinforced Concretes

Yağmur¹

2020

Pamukkale J Eng Sci

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Bu çalışmada, farklı ayrık lif tiplerinin betonun elastisite modülü üzerindeki etkileri araştırılmıştır. Bu amaçla 260 adet silindirik basınç deney numunesi derlenmiştir. Dikkate alınan lif tipleri çelik, PVA, polipropilen, polyolefin, bazalt ve olefindir. Çalışma sonuçları tüm lif tipleri için kaba agrega miktarının ince agrega miktarına oranının 1.5'i aşması durumunda beton basınç dayanımının azaldığını göstermiştir. Çelik lifli karışımların lif narinlik oranının 60'dan küçük ve eşit olduğu durumlarda elastisite modülü artış gösterirken 60'dan büyük değerler için elastisite modülünün azaldığı görülmüştür. Dikkate alınan tüm lif tipleri için geçerli olan bir elastisite modülü denklemi önerilmiştir. Önerilen denklem deney sonuçları ile ve literatürde yer alan diğer formüllerle karşılaştırılmış ve farklı durumlar için denklemlerin geçerlilikleri sorgulanmıştır.In this study, the effects of different discrete fiber types on the elastic modulus of concrete are investigated. For this purpose, 260 cylindrical pressure test specimens are compiled. The fiber types considered are steel, PVA, polypropylene, polyolefin, basalt and olefin. The results of the study are showed that if the ratio of coarse aggregate to fine aggregate exceeds 1.5 for all fiber types, the compressive strength of concrete decreases. It has been observed that the elastic modulus increases in cases where the fiber aspect ratio of the steel fibers is less than and equal to 60, while the elastic modulus decreases for values greater than 60. An elastic modulus equation, which applies to all fiber types considered, is proposed. The proposed equation is compared with the experimental results and the other formulas in the literature and the validity of the equations for different cases are questioned.

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“…Generally, improving tensile strength may adversely affect on corresponding elongation. Physical and mechanical properties of polyproplene are listed in Table (2) [34][35][36][37]. It is found that trapping properties of matrix are highly modified by the presence of costless nanofillers clay.…”

Section: Physical and Mechanical Properties Of Polypropylene (Pp)mentioning

confidence: 99%

“…In the field of dielectrics and electrical insulation, polymer nanocomposites are known for their excellent dielectric properties and are the subject of intensive research. For example, polymer-clay nanocomposites are considered promising as electrical insulation for power apparatus, cablesand wires in the near future due to their good insulating capabilities, flame retardance and mechanical properties [34]. Thermoplastic and thermoset resins reinforced by nanoparticles of clay, silica, rutile and alumina have been developed and studied [35].…”

Section: Consequence Of Nanotechnology Science On Dielectrics Propertiesmentioning

confidence: 99%

Predictable Models and Experimental Measurements for Electric Properties of Polypropylene Nanocomposite Films

Thabet¹,

Mobarak²

2016

IJECE

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<span>This paper processed and characterized cost-fewer polypropylene (PP) nanocomposite films; an experimental work has been investigated for studying the electric properties of the new nanocomposite materials and compared with unfilled industrial materials in a frequency range up to 1 kHz. A small addition of nanoparticles (clay, and fumed silica) to polypropylene showed appreciable improvement in the electric reactance and conductance at different frequency up to 1kHz, in addition, an electric spectroscopy has been measured the electric properties of polypropylene with and without nanoparticles under variant temperatures (20°C, and 60°C). Cambridge Engineering Selector (CES) program were carried out the electrical/mechanical predictable models for the suggested materials. Finally, this paper leads to synthesize electrical insulating polypropylene nanocomposite films where the electrical properties are properly maintained in order to achieve more cost-effective, energy-effective and hence environmentally better materials for the electrical insulation technology.</span>

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Lightweight Concrete Reinforced with Polypropylene Fibers

Cited by 6 publications

References 3 publications

Behavior of polypropylene fiber reinforced foam concrete beams laterally reinforced with/without glass fiber grid

Behavior of polypropylene fiber reinforced foam concrete beams laterally reinforced with/without glass fiber grid

Elastic Modulus Prediction for Fiber-Reinforced Concretes

Predictable Models and Experimental Measurements for Electric Properties of Polypropylene Nanocomposite Films

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