Comparative Study on Durability Properties of Engineered Cementitious Composites with Polypropylene Fiber and Glass Fiber

Ranjith, S.; Venkatasubramani, R.; Sreevidya, V.

doi:10.1515/ace-2017-0042

Cited by 25 publications

(11 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Following sulfate erosion, concrete expands, cracks, dissolves, peels off, and decreases in strength, which affects the durability of structures. Fiber is a new type of an environmentally friendly and green high-performance material, and can be used in cement materials to improve bending, impact properties, toughness, and corrosion resistance [1][2][3]. In addition, due to the bridging effect of fibers, resistance to crack propagation increases [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Effect of Surface Treatment of Polypropylene (PP) Fiber on the Sulfate Corrosion Resistance of Cement Mortar

2021

Materials

View full text Add to dashboard Cite

Sulfate erosion is one of the most complex and harmful chemical corrosion actions. Following sulfate erosion, concrete expands, cracks, dissolves, peels off, and decreases in strength, which affects the durability of structures. Polypropylene fiber (PP) is widely used in various concrete structures because of its good mechanical properties and chemical corrosion resistance. However, PP fiber has a number of shortcomings, such as a smooth surface, poor hydrophilicity, lack of active groups in the molecular chain, and agglomeration and poor dispersion in cement-based materials. These issues limit its application in cement-based materials. Although the use of a silane coupling agent to modify the surface of PP fiber is effective, the influence of treated PP fiber on the sulfate resistance of cement-based materials is not significant. In this study, a PP fiber treated with a silane coupling agent was used to examine effects of different cement-to-sand ratios (C/S) and dosages of the treated PP fiber on the sulfate erosion resistance of cement mortar. Furthermore, the apparent morphology, mass loss rate, flexural strength, corrosion resistance coefficient, and microstructure of the concrete were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results revealed that the PP fiber became rough after modification. Active groups were introduced on the fiber surface, which were well dispersed in the mortar and formed a good network distribution structure in the cement mortar, thereby slowing the erosion rate of the PP fiber mortar in a sodium sulfate solution. At a C/S ratio of 1:1 and a treated fiber dosage of 0.6%, the treated fiber mortar has exhibited good sulfate resistance. In addition, the monofilament fiber immersion test revealed that a layer of sodium sulfate crystals was deposited on the fiber surface, thereby increasing the roughness of the fiber surface and the pull-out force of the fiber from the cement matrix, this result indicated that the interfacial adhesion between the treated PP fiber and cement matrix was improved, which in turn led to the improvement in the sulfate erosion resistance of the treated PP fiber.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Surface Treatment of Polypropylene (PP) Fiber on the Sulfate Corrosion Resistance of Cement Mortar

2021

Materials

View full text Add to dashboard Cite

show abstract

“…e concrete with 0.8% PPF content has the smallest expansion rate, which was only 76% of ordinary concrete. Ranjith et al [32] adopt to study the influence of immersing age on the sulfate attack resistant of concrete.…”

Section: Permeabilitymentioning

confidence: 99%

“…ey found that the durability of concrete can be enhanced by adding hybrid fibres. Ranjith et al [32] investigated the durability of engineered cementitious composites reinforced by PPFs and glass fibres. e durability indexes, such as water absorption, chloride penetration, sulfate attack resistance, and acid attack resistance, were enhanced by using PPFs and glass fibres together.…”

Section: Introductionmentioning

confidence: 99%

Review on the Durability of Polypropylene Fibre‐Reinforced Concrete

Liu

Wang

Cao

et al. 2021

Advances in Civil Engineering

View full text Add to dashboard Cite

Polypropylene fibre (PPF) is a kind of polymer material with light weight, high strength, and corrosion resistance. The crack resistance of concrete can be improved by adding PPFs. PPF can optimize the pore size distribution of concrete. As a result, the durability of concrete is significantly enhanced since PPF can block the penetration of water or harmful ions in concrete. This paper summarizes the influence of polypropylene fibre on the durability of concrete, including drying shrinkage, creep, water absorption, permeability resistance, chloride ion penetration resistance, sulfate corrosion resistance, freeze-thaw cycle resistance, carbonation resistance, and fire resistance. The authors analysed the effects of fibre content, fibre diameter, and fibre hybrid ratio on these durability indexes. The durability property of concrete can be further improved by combining PPFs and steel fibres. The drawbacks of PPF in application in concrete are the imperfect dispersion in concrete and weak bonding with cement matrix. The methods to overcome these drawbacks are to use fibre modified with nanoactive powder or chemical treatment. At last, the authors give the future research prospects of concrete made with PPFs.

show abstract

“…When concrete is used in these projects, the damage and damage of concrete are mainly affected by freeze–thaw and chloride solution 2 . There are several ways to improve the wear and corrosion resistance of face concrete, namely adding polymers, silica fume, plasticizers or reinforcing fibers to the concrete mix, and so forth 3–8 …”

Section: Introductionmentioning

confidence: 99%

“…The addition of fibers is an effective solution to this problem 9 . It was documented by Ranjith et al 8 that, increasing polypropylene and glass fiber content up to 1.5% improved the durability properties of ECC. Adding polypropylene fiber (PPF) into concrete can effectively improve the freezing thawing resistance 10 .…”

Section: Introductionmentioning

confidence: 99%

The influence of fiber on salt frost resistance of hydraulic face slab concrete

Wang

Cao

et al. 2022

Structural Concrete

View full text Add to dashboard Cite

As an important antiseepage structure of concrete face rockfill dam, the durability of concrete face slab is very important for the long‐term safe operation of the dam. Polypropylene fiber (PPF) and polyacrylonitrile fiber (PANF) are used as research objects to study the salt frost resistance of dual fiber Face slab concrete. The corrosion resistance of PPF and PANF concrete under different fiber volume was compared. The mass loss, residual compressive strength, relative dynamic modulus of elasticity and microstructure were evaluated in salt freezing environment. The results show that adding PPF and PANF to concrete can effectively improve the frost resistance of concrete, and the performance law is similar under the coupling failure of chloride and freeze–thaw cycles. Under the same volume, the effect of PPF concrete is more significant than PPF concrete, and the effect of adding two kinds of fibers at the same time is better than adding one fiber alone. Within the evaluation range, choosing 0.5% PPF and 0.5% PPF as additives is the best choice to improve the salt frost resistance. The results of scanning electron microscopy microstructure analysis of corrosion products are consistent with that of macro property analysis.

show abstract

Comparative Study on Durability Properties of Engineered Cementitious Composites with Polypropylene Fiber and Glass Fiber

Cited by 25 publications

References 1 publication

Effect of Surface Treatment of Polypropylene (PP) Fiber on the Sulfate Corrosion Resistance of Cement Mortar

Effect of Surface Treatment of Polypropylene (PP) Fiber on the Sulfate Corrosion Resistance of Cement Mortar

Review on the Durability of Polypropylene Fibre‐Reinforced Concrete

The influence of fiber on salt frost resistance of hydraulic face slab concrete

Contact Info

Product

Resources

About