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

Hu, Yan‐Yan; Ma, Linlin

doi:10.3390/ma14133690

Cited by 17 publications

(4 citation statements)

References 30 publications

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“…It was also observed that CF had more ridges than PF. This observation is consistent with Hu & Ma, [17] who stated that the PF's surface was smooth. Meanwhile, CF had more groves as stated by Tian et al, [18].…”

Section: Microstructural Properties Of Fibresupporting

confidence: 92%

Engineering Properties of Cement-Paste with Polypropylene and Carbon Fibres

Anand Ryan Thurairajah,

Ahmad Nurfaidhi Rizalman,

Eliezer Nevall Anthony

et al. 2024

ARAM

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Concrete has strong compressive strength, but it is brittle and vulnerable to tension-induced failure. To address the issue, this research investigated the effect of the addition of fibre on the engineering properties of cement paste. There were two fibres examined in this study, which include polypropylene fibre (PF) and carbon fibre (CF). The engineering properties that were studied include flowability, hardened density, compressive strength, and flexural strength at 7, 28, and 56 days. The results indicated that the addition of fibre had only subtle effects on workability, attributed to a judiciously chosen low-volume fraction of fibres. Notably, a consistent increase in hardened density, compressive strength, and flexural strength was observed over the curing period, driven by ongoing hydration processes. Therefore, it can be concluded that the incorporation of PF and CF significantly improved cement paste engineering properties, outperforming the control specimen in hardened density, compressive strength, and flexural strength.

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Section: Microstructural Properties Of Fibresupporting

confidence: 92%

Engineering Properties of Cement-Paste with Polypropylene and Carbon Fibres

Anand Ryan Thurairajah,

Ahmad Nurfaidhi Rizalman,

Eliezer Nevall Anthony

et al. 2024

ARAM

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show abstract

“…It is conditionally possible to divide the studies conducted by other authors by grouping them into several groups of factors. For example, some authors [12,15,[18][19][20][23][24][25]34,36] were engaged in research aimed at improving the corrosion resistance of cement-based concrete, which are the most traditional type of concrete in current construction but are not environmentally friendly and cheap, leaving a high carbon footprint and not in line with the modern ESG agenda. Other authors [7][8][9][10][11]22,27,29,31,35] were engaged in developing compositions of geopolymer concrete aimed at improving the mechanical properties of such concrete: their strength and improvement of deformation properties.…”

Section: Discussionmentioning

confidence: 99%

Increasing the Corrosion Resistance and Durability of Geopolymer Concrete Structures of Agricultural Buildings Operating in Specific Conditions of Aggressive Environments of Livestock Buildings

et al. 2022

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The problem of increasing the service life of buildings and structures for agricultural purposes operated in aggressive environments is relevant. The aim and scientific novelty of the work were to determine the relationship between the structure and properties of geopolymer concretes in aggressive environments. The properties of various concrete compositions under the influence of a solution of lactic, acetic, and oxalic acids were studied. With an exposure time of 90 days in an aggressive environment, samples of concrete based on a geopolymer binder had up to 6% less loss of strength and up to 10% less weight loss than concrete based on a cement binder. The effectiveness of the developed composition and technological solutions was confirmed, and it was quantitatively expressed in increased compressive strength and tensile strength in bending by 81.0% and 73.5%, respectively. It has been established that raising the heat treatment temperature to 80 °C leads to increased compressive strength for all compositions of geopolymer binders. The most favorable heat treatment conditions are created at 80 °C. The relations of the strength characteristics of geopolymer binders are revealed, which allow a detailed quantitative and qualitative assessment of the influence of the studied factors on the change in the system “composition—hardening conditions—properties” and can be used in the development of production compositions of binders and composites based on them, as well as their regulation—physical, mechanical, and operational characteristics.

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“…Five mix ratios were designed in the test, as shown in Table 4. Their polypropylene fiber contents were 0% or 0.6% [30][31][32][33] and their nano-clay contents were 0%, 4%, 6%, and…”

Section: Experiments Schemementioning

confidence: 99%

“…Five mix ratios were designed in the test, as shown in Table 4. Their polypropylene fiber contents were 0% or 0.6% [30][31][32][33] and their nano-clay contents were 0%, 4%, 6%, and 8%. Unconfined compression tests and unconsolidated undrained shear tests were carried out on the five types of specimens.…”

Section: Experiments Schemementioning

confidence: 99%

Synergistic Improvement of Strength Characteristics in Recycled Aggregates Using Nano-Clay and Polypropylene Fiber

Zhao,

Wang,

Zhang

et al. 2024

Polymers

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In order to study the improvement effect of nano-clay and polypropylene fiber on the mechanical properties of recycled aggregates, unconfined compression tests and triaxial shear tests were conducted. The experimental results show that adding polypropylene fibers to recycled aggregates increases the unconfined compressive strength by 27% and significantly improves ductility. We added 6% nano-clay to fiber-reinforced recycled aggregates, which increased the unconfined compressive strength of the recycled aggregates by 49% and the residual stress by 146%. However, the ductility decreased. Under low confining pressures, with the addition of nano-clay, the peak deviatoric stress strength of the fiber-reinforced recycled aggregates first decreased and then increased. When the nano-clay content was 8%, this reached a maximum value. However, under high confining pressures, the recycled aggregate particles were tightly interlocked, so that the improvement effect of the fiber and nano-clay was not obvious. As more nano-clay was added, the friction angle of the fiber-reinforced recycled aggregates decreased, while the cohesion increased. When the content of nano-clay was 8%, the cohesive force increased by 110%. The results of this research indicate that adding both polypropylene fibers and nano-clay to recycled aggregates has a better improvement effect on their strength characteristics than adding only polypropylene fibers. This study can provide a reference for improving the mechanical properties of recycled aggregates and the use of roadbeds.

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

Cited by 17 publications

References 30 publications

Engineering Properties of Cement-Paste with Polypropylene and Carbon Fibres

Engineering Properties of Cement-Paste with Polypropylene and Carbon Fibres

Increasing the Corrosion Resistance and Durability of Geopolymer Concrete Structures of Agricultural Buildings Operating in Specific Conditions of Aggressive Environments of Livestock Buildings

Synergistic Improvement of Strength Characteristics in Recycled Aggregates Using Nano-Clay and Polypropylene Fiber

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