Properties of ultra-high performance geopolymer concrete incorporating recycled waste glass

Tahwia, Ahmed M.; Heniegal, Ashraf M.; Abdellatief, Mohamed; Tayeh, Bassam A.; Elrahman, Mohamed Abd

doi:10.1016/j.cscm.2022.e01393

Cited by 37 publications

(18 citation statements)

References 41 publications

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“…Tabel 1. Komposisi kimia limbah kaca Selama beberapa tahun terakhir, upaya ilmiah beberapa peneliti diarahkan pada penggunaan limbah kaca sebagai pengganti sebagian semen dan agregat untuk mengatasi permasalahan lingkungan dan biaya pembuangan limbah kaca yang tinggi (Ahmad et al, 2022;Geng et al, 2022;Tahwia et al, 2022;Topçu & Canbaz, 2004). (Ismail & AL-Hashmi, 2009) melaporkan bahwa limbah kaca menghasilkan masalah lingkungan yang berbahaya.…”

Section: Pendahuluanunclassified

Pengenalan dan Pemanfaatan Limbah Kaca Menjadi Produk Bernilai

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Amin²,

Meutia³

et al. 2022

dinamisia

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Glass waste is harmful if it is disposed of and mixed with other waste. A special disposal site is needed to avoid injuring the hands and feet of the garbage collectors, especially at the Final Disposal Site (TPA). Glass waste highly consists of silica (SiO2), which is needed in cement. Glass waste is crushed by a mechanical method using a crusher, creating glass powder with an average size of 54 µm. Cement is mixed with glass powder in a ratio of 4:1. Water cement factor (FAS) is used at 0.3. The partners in this community service activity are primary school-age children in Ateuk Lam Ura Village, Simpang Tiga District, and Aceh Besar District. The success of the resulting product is indicated by its compressive strength, the hardening of cement and glass powder, and the product's visual appearance without any visible pores. The product has good strength and looks neat with a solid surface. The compressive strength of the product obtained is 3.21. Partners are interested and can apply glass waste to flower pots properly.

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Section: Pendahuluanunclassified

Pengenalan dan Pemanfaatan Limbah Kaca Menjadi Produk Bernilai

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Amin²,

Meutia³

et al. 2022

dinamisia

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“…Metakaolin (MK), obtained from the calcination of kaolin clay, is a common source of silica and alumina [17], and it has been used as a base material and in combination with other waste materials in the preparation of geopolymers [18][19][20][21]. Many other precursor materials can be used to create geopolymers, such as fly ash [22][23][24][25], red mud [26][27][28], slag [29][30][31], volcanic resources [32][33][34][35], waste glass [36][37][38], mine tailings [39][40][41], and different construction and demolition waste [42,43].…”

Section: Introductionmentioning

confidence: 99%

Acid Resistance of Metakaolin-Based Geopolymers and Geopolymeric Mortars Reinforced with Coconut Fibers

Lezzerini,

Aquino,

Pagnotta

2024

Fibers

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This paper investigates the durability of geopolymers and geopolymeric mortars made with metakaolin and alkaline activators, with and without a coconut fiber addition, after immersion for seven days into solutions of citric acid (1%, 2.5%, 5%, and 10%); hydrochloric acid (1%, 2.5%, 5%, and 10%); and sulfuric acid (1%, 2.5%, 5%, and 10%). The study focuses on mass changes, uniaxial compressive strength, flexural strength, and ultrasound pulse velocity measurements. X-ray diffraction and scanning electron microscopy are used to analyze the degradation products and microstructural changes. The aim is to assess the effect of acid exposure on the strength and stability of geopolymer materials and identify any protective effects of coconut fiber reinforcement. The samples are immersed in acid solutions of varying concentrations, and their mechanical properties are measured. The presence of coconut fibers slightly modifies the physical properties and the compressive strength, improving the mechanical flexural strength. Geopolymer and geopolymeric mortar materials experienced a weak decrease in strength when exposed to solutions of citric acid and a significant one when exposed to solutions of hydrochloric and sulfuric acids, attributed to depolymerization of the aluminosilicate binders. Brick waste geopolymeric mortars reinforced with coconut fibers showed the best performance in acid solutions with respect to geopolymers and quartz-rich sand geopolymeric mortars, suggesting a more stable cross-linked aluminosilicate geopolymer structure in this material.

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“…To address such weakness, fillers and fibers have been added into geopolymers to improve the overall performance of fiber-reinforced geopolymer composites. Different types of reinforcing fibers were already incorporated in geopolymer binders such as steel fibers [39,40], carbon fibers [41], and synthetic fibers [22,42], etc. However, considering the environmental issues, natural fibers have attracted wide attention to develop eco-friendly geopolymer composites.…”

Section: Introductionmentioning

confidence: 99%

Geopolymer composites reinforced with natural Fibers: A review of recent advances in processing and properties

TANANE,

Moujoud,

Ousaleh

et al. 2024

Preprint

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The construction sector is a significant contributor to global greenhouse gas emissions, resource depletion, and environmental degradation. Therefore, sustainable development in the construction sector is essential to reduce its environmental impact. Geopolymer materials have attracted particular attention offering technical properties similar to those of Portland cementitious materials with a much lower CO 2 emission and lower environmental impact. Their use as clean insulating materials seems promising due to their excellent thermal and mechanical properties. Moreover, natural fibers, such as bamboo, flax, hemp, and jute, can be used as reinforcement within the geopolymer matrix, providing additional benefits such as improved tensile and flexural strength, reduced density, and improved thermal and acoustic insulation properties. Hence, this review paper aims to explore the raw materials and manufacturing conditions involved in the formation of compact and porous geopolymer materials. In addition, the various factors affecting the properties of geopolymer materials are critically discussed and compared with those of Portland cementitious materials. Moreover, the impact of many variables, including fiber size, fiber orientation, and fiber content on the performance of natural fiber-reinforced geopolymer composites are highlighted, providing insights for future research developments.

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Properties of ultra-high performance geopolymer concrete incorporating recycled waste glass

Cited by 37 publications

References 41 publications

Pengenalan dan Pemanfaatan Limbah Kaca Menjadi Produk Bernilai

Pengenalan dan Pemanfaatan Limbah Kaca Menjadi Produk Bernilai

Acid Resistance of Metakaolin-Based Geopolymers and Geopolymeric Mortars Reinforced with Coconut Fibers

Geopolymer composites reinforced with natural Fibers: A review of recent advances in processing and properties

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