Concrete Containing Waste Glass as an Environmentally Friendly Aggregate: A Review on Fresh and Mechanical Characteristics

Materials, Journal Year: 2022, Volume and Issue: 15(18), P. 6222 - 6222

Published: Sept. 7, 2022

The safe disposal of an enormous amount waste glass (WG) in several countries has become a severe environmental issue. In contrast, concrete production consumes large natural resources and contributes to greenhouse gas emissions. It is widely known that many kinds may be utilized rather than raw materials the field construction materials. However, for wide use building construction, it necessary ensure characteristics resulting are appropriate. Recycled one most attractive can used create sustainable compounds. Therefore, researchers focus on cement mortar by utilizing as aggregate or pozzolanic material. this article, literature discussing recycled partial complete replacement aggregates been reviewed focusing effect fresh mechanical properties concrete.

Language: Английский

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Smart materials and technologies for sustainable concrete construction

Developments in the Built Environment, Journal Year: 2023, Volume and Issue: 15, P. 100177 - 100177

Published: May 25, 2023

This paper presents a comprehensive review of current trends and opportunities for sustainable concrete construction, emphasizing the importance adopting eco-friendly practices to mitigate industry's environmental impact. Green concrete, supplementary cementitious materials, permeable cool use local materials are explored as technologies. Innovations like self-healing 3D-printed photocatalytic electrified machineries, carbon capture, utilization, storage principles also discussed, highlighting their potential improve sustainability construction practices. Challenges faced in implementing practices, such technical, economic, social barriers, addressed. The roles governments, industry, academia promoting examined, stressing need interdisciplinary collaboration research. Lastly, emerging technologies, including digitalization, data-driven approaches, circular economy principles, identified critical factors driving transition towards construction.

Language: Английский

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Fly Ash-Based Geopolymer Composites: A Review of the Compressive Strength and Microstructure Analysis

Materials, Journal Year: 2022, Volume and Issue: 15(20), P. 7098 - 7098

Published: Oct. 12, 2022

Geopolymer (GP) concrete is a novel construction material that can be used in place of traditional Portland cement (PC) to reduce greenhouse gas emissions and effectively manage industrial waste. Fly ash (FA) has long been utilized as key constituent GPs, GP technology provides an environmentally benign alternative FA utilization. As result, thorough examination manufactured using precursor (FA-GP concrete) employed replacement for conventional become crucial. According the findings current investigations, FA-GP equal or superior mechanical physical characteristics compared PC concrete. This article reviews clean production, mix design, compressive strength (CS), microstructure (Ms) analyses collect publish most recent information data on In addition, this paper shall attempt develop comprehensive database based previous research study expounds impact substantial aspects such physio-chemical precursors, mixes, curing, additives, chemical activation CS The purpose work give viewers greater knowledge consequences uses making effective

Language: Английский

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Application of Ultra-High-Performance Concrete in Bridge Engineering: Current Status, Limitations, Challenges, and Future Prospects

Buildings, Journal Year: 2023, Volume and Issue: 13(1), P. 185 - 185

Published: Jan. 10, 2023

Ultra-high-performance concrete (UHPC) is a form of cementitious composite that has been the most innovative product in technology over last three decades. broadly employed for design numerous forms construction owing to its excellent mechanical characteristics and durability, studies on behavior have grown fast While utilization ultra-high-performance bridge engineering (BE) limited high costs, little recognized about UHPC various BE elements. As result these issues, comprehensive review current development trends should be conducted determine present state perspective. This study presents state-of-the-art applications BE. also discusses status, limitations, challenges, areas further investigation The aim this research help stakeholders understand distinctive characteristics, benefits, barriers broad applications. understanding will aid increasing entire market share both national worldwide building sectors.

Language: Английский

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RETRACTED: A review of the sustainable utilisation of red mud and fly ash for the production of geopolymer composites

Construction and Building Materials, Journal Year: 2022, Volume and Issue: 350, P. 128892 - 128892

Published: Aug. 19, 2022

Language: Английский

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Ultra-high-performance fiber-reinforced concrete. Part V: Mixture design, preparation, mixing, casting, and curing

Case Studies in Construction Materials, Journal Year: 2022, Volume and Issue: 17, P. e01363 - e01363

Published: July 30, 2022

Language: Английский

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Influence of microsilica and polypropylene fibers on the fresh and mechanical properties of ultra-high performance geopolymer concrete (UHP-GPC)

Case Studies in Construction Materials, Journal Year: 2022, Volume and Issue: 17, P. e01367 - e01367

Published: Aug. 2, 2022

The goal of this research is to identify the impact microsilica and polypropylene fibers (PF) on mechanical characteristics an ultra-high performance geopolymer concrete (UHP-GPC). workability, compressive strength, modulus elasticity, splitting tensile strength a total 20 mixtures were evaluated experimentally. To produce mixtures, PF was utilized at four different volume fractions: 0 %, 0.75 1.75 2.75 %. Moreover, five levels employed in terms mass binder: 7.5 15 25 35 findings showed that when % added UHP-GPC, significantly degraded, but then enhanced more than added. Furthermore, contributes UHP-GPC introducing minimizes significant drop employed. ‎

Language: Английский

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The use of crushed recycled glass for alkali activated fly ash based geopolymer concrete and prediction of its capacity

Journal of Materials Research and Technology, Journal Year: 2023, Volume and Issue: 24, P. 8267 - 8281

Published: May 1, 2023

The influence of waste glass aggregate (WGA) with fly ash in certain proportions was studied by different amounts molarity and WGA proportion on geopolymer concrete (GPC). For this aim, the values NaoH concentration consumed investigation were determined as 11, 13 16. At end examinations, workability, setting time, compression strength (CS) test, splitting tensile (ST) tests flexural (FS) are performed. conclusions demonstrated that slump increased (WG) percentages decreased. While concerning CS, ST FS combination increased, these test results tend to decrease correspondingly. NaOH altered from 11 16, increase. This examination study demonstrates had also a slight adverse capacity workability. Moreover, use 10% 16 is suggested gain optimum sustainable GPC considering both fresh hardening properties combined molarity. Furthermore, examination, offered models established related those built several standard codes. More importantly an equation derived predict compressive mixture utilized study. Additionally, scanning electron microscopy (SEM) analysis achieved example parts attained examples formed WGA.

Language: Английский

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Influence of high temperature exposure on compressive strength and microstructure of ultra-high performance geopolymer concrete with waste glass and ceramic

Journal of Materials Research and Technology, Journal Year: 2023, Volume and Issue: 23, P. 5681 - 5697

Published: March 1, 2023

This research evaluates the effect of high temperatures up to 800 °C on compressive strength and microstructure developed ultra-high performance geopolymer concrete (UHPGC) containing waste glass (WG) ceramic (WC). Fine aggregate was partially substituted with WG WC in range 7.5–22.5% by vol. Samples were heated 200–800 at a heating rate 5 °C/min for 1.5 h. The visual appearance, mass loss, residual strength, microscopic investigation UHPGC mixtures investigated. outcomes experiments demonstrated that varied from 98% 97%, 59%–63%, 27%–32% after being subjected 300, 600, °C, respectively. While samples had strengths varying 86% 83%, 51%–45%, 24%–18%, Therefore, deteriorates more slowly an increase than WC. Microscopy showed pore structure expanded temperature, notably above 600 while less enhanced strength. Finally, incorporation is effective thermal stability Thermogravimetric analysis (TGA) results revealed 22.5% maintained about 95% its weight, incorporating lost 8% their weight. It concluded could be implemented as eco-friendly material desirable properties temperatures.

Language: Английский

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Utilization of sodium carbonate activator in strain-hardening ultra-high-performance geopolymer concrete (SH-UHPGC)

Frontiers in Materials, Journal Year: 2023, Volume and Issue: 10

Published: Feb. 6, 2023

In this study, strain-hardening ultra-high-performance geopolymer concrete (SH-UHPGC) was produced using Na 2 CO 3 , SiO and their hybridization (1:1 in mole ratio) as alkaline activators. An ultra-high compressive strength achieved for all the developed (i.e., over 130 MPa). Strain-hardening with hybrid activators showed highest (186.0 MPa), tensile strain capacity (0.44%), (11.9 It should be highlighted that very significant multiple cracking can observed even at a low level (e.g., 0.1%). According to reaction heat, microstructures, chemical composition analyses, had degree, while of -based lowest. found best sustainability, presented overall performance (considering mechanical performance, energy consumption, environmental impact, economical potential). The findings work provide useful knowledge improving sustainability economic potential materials.

Language: Английский

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