Effect of glass fiber and recycled aggregates on Geopolymer concrete

Mehta, Shalika; Bhandari, Mohit

doi:10.1088/1755-1315/889/1/012038

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…In 1923, the French Paul Dhé received a US patent for his idea to extrude fibers from basalt [155]. From the 1960s, just after World War II, basalt fibers were chosen to be the best material for military research by the Soviet Union, Europe, and the United States due to their extensive use in aeronautical and defense applications [144,146]. In 1995, the fiber production technology was declassified and commenced civilian research [155].…”

Section: Basalt Fibermentioning

confidence: 99%

Behavior of Fibers in Geopolymer Concrete: A Comprehensive Review

Sharma,

Gupta,

Bahrami

et al. 2024

Buildings

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Over the last decades, cement has been observed to be the most adaptive material for global development in the construction industry. The use of ordinary concrete primarily requires the addition of cement. According to the record, there has been an increase in the direct carbon footprint during cement production. The International Energy Agency, IEA, is working toward net zero emissions by 2050. To achieve this target, there should be a decline in the clinker-to-cement ratio. Also, the deployment of innovative technologies is required in the production of cement. The use of alternative binding materials can be an easy solution. There are several options for a substitute to cement as a binding agent, which are available commercially. Non-crystalline alkali-aluminosilicate geopolymers have gained the attention of researchers over time. Geopolymer concrete uses byproduct waste to reduce direct carbon dioxide emissions during production. Despite being this advantageous, its utilization is still limited as it shows the quasi-brittle behavior. Using different fibers has been started to overcome this weakness. This article emphasizes and reviews various mechanical properties of fiber-reinforced geopolymer concrete, focusing on its development and implementation in a wide range of applications. This study concludes that the use of fiber-reinforced geopolymer concrete should be commercialized after the establishment of proper standards for manufacturing.

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Section: Basalt Fibermentioning

confidence: 99%

Behavior of Fibers in Geopolymer Concrete: A Comprehensive Review

Sharma,

Gupta,

Bahrami

et al. 2024

Buildings

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“…If it is required to add superplasticiser, it can be added at the final stage (Wang et al ., 2020; Waqas et al ., 2021). However, superplasticiser was added to the binding materials, and then aggregates were added and mixed in another study (Mehta and Bhandari, 2021).…”

Section: Rca Treatmentmentioning

confidence: 99%

“…Various types of fibre, such as alkali resistance glass fibre (Mehta and Bhandari, 2021), Polyvinyl alcohol fibre (Sahin et al ., 2021b), steel fibre (Xu et al ., 2021), carbon fibres (Nuaklong et al ., 2021) and BFs (Şahin et al ., 2021a) improve the mechanical properties of the RCA-based concrete. However, the content of the fibre and the length of the fibre influence the concrete's properties.…”

Section: Rca Treatmentmentioning

confidence: 99%

A review of the advanced treatment techniques for enriching the recycled concrete aggregates for recycled-based concrete: economic, environmental and technical analysis

Nikmehr

Kafle

Al-Ameri

2023

SASBE

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PurposeThis study aimed to review various existing methods for improving the quality of recycled concrete aggregates (RCAs) as a possible substitution for natural aggregates (NAs) in concrete. It is vital as the old paste attached to the RCA weakens its structure. It is due to the porous structure of the RCA with cracks, weakening the interfacial transition zone (ITZ) between the RCA and binding material, negatively impacting the concrete's properties. To this end, various methods for reinforcement of the RCA, cleaning the RCA's old paste and enhancing the quality of the RCA-based concrete without RCA modification are studied in terms of environmental effects, cost and technical matters. Furthermore, this research sought to identify gaps in knowledge and future research directions.Design/methodology/approachThe review of the relevant journal papers revealed that various methods exist for improving the properties of RCAs and RCA-based concrete. A decision matrix was developed and implemented for ranking these techniques based on environmental, economic and technical criteria.FindingsThe identified methods for reinforcement of the RCA include accelerated carbonation, bio deposition, soaking in polymer emulsions, soaking in waterproofing admixture, soaking in sodium silicate, soaking in nanoparticles and coating with geopolymer slurry. Moreover, cleaning the RCA's old paste is possible using acid, water, heating, thermal and mechanical treatment, thermo-mechanical and electro-dynamic treatment. Added to these treatment techniques, using RCA in saturated surface dry (SSD) mixing approaches and adding fibres or pozzolana enhance the quality of the RCA-based concrete without RCA modification. The study ranked these techniques based on environmental, economic and technical criteria. Ultimately, adding fibres, pozzolana and coating RCA with geopolymer slurry were introduced as the best techniques based on the nominated criteria.Practical implicationsThe study supported the need for better knowledge regarding the existing treatment techniques for RCA improvement. The outcomes of this research offer an understanding of each RCA enrichment technique's importance in environmental, economic and technical criteria.Originality/valueThe practicality of the RCA treatment techniques is based on economic, environmental and technical specifications for rating the existing treatment techniques.

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“…Most used fibers to improve the strength properties of concrete are cotton fiber, carbon fiber, glass fiber and basalt fiber. The study conducted by Mehta and Bhandari [11], Blazy et al [12] investigated the effects of adding glass fibers on the mechanical properties of concrete. The study showed that the addition of glass fibers (1 % to 2.5 %) in geopolymer concrete increased the flexural strength of the specimen by 20 % compared to a specimen without glass fibers.…”

Section: Introductionmentioning

confidence: 99%

The effect of glass fiber on fresh properties of industrial based geopolymer concrete

Munir¹,

Kärki²

2023

Mater. sci. eng., appl.

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This research study is primarily focused on evaluating the fresh properties of industrial-based 3D printable geopolymer concrete by adding glass wool strings and glass fibers activated by sodium silicate solution with a molar ratio of 2.4-2.6 (31 % SiO2 and 13 % Na2O). The glass wool strings, and recycled glass fiber are added to industrial-based geopolymer concrete at a dosage of 1 % to 5 % by volume of the concrete. The fresh concrete properties such as open time, setting time and shape stability of industrial-based geopolymer concrete (GPC) with glass wool and glass fibers were compared with those of industrial-based GPC without glass wool strings and glass fibers. The results show that the addition of glass wool increases the setting time of the concrete mix at room temperature. The deformation of the specimens at room temperature decreased by 39 %. The addition of glass fiber in geopolymers also increases the stiffness by 74 % compared to GPC without glass fiber.

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Effect of glass fiber and recycled aggregates on Geopolymer concrete

Cited by 5 publications

References 14 publications

Behavior of Fibers in Geopolymer Concrete: A Comprehensive Review

Behavior of Fibers in Geopolymer Concrete: A Comprehensive Review

A review of the advanced treatment techniques for enriching the recycled concrete aggregates for recycled-based concrete: economic, environmental and technical analysis

The effect of glass fiber on fresh properties of industrial based geopolymer concrete

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