Eco-friendly agro-waste based geopolymer-concrete: a systematic review DOI Creative Commons
George Uwadiegwu Alaneme, Kolawole Adisa Olonade, Ebenezer Esenogho

et al.

Discover Materials, Journal Year: 2023, Volume and Issue: 3(1)

Published: June 10, 2023

Abstract Numerous scientific studies have been conducted, and a wide range of new inorganic geopolymer composite applications emerged as result. This innovative material can be made from agricultural waste sources rich in aluminosilicate, which provides best substitute for traditional cement terms both quality cost. paper presents the state-of-the-art review deploying agro-wastes precursor concrete with view to aggregating research using agro ash-based most auspicious, durable, inexpensive, user-friendly, eco-beneficial construction materials long-term use. thoroughly examines rheological, workability, chemistry, mechanical characteristics agro-waste emphasis on sugarcane bagasse banana peels ash. Sugarcane green bananas ( matooke ) play vital roles East African agriculture, economy food security. The effects micro-structures, curing conditions, molarity metallic alkalis, proportioning alkaline-binder ratio, aggregates content size fractions behavior were critically assessed. study highlighted abundance these products serve staple region, therefore, it becomes imperative recycle its produce durable by way management strategy. As component readily available building materials, they crucial role providing sector sustainable outlook while concluding that are potential could game changer concrete, number gaps worthy further identified. findings this demonstrates derivatives when used binder viable alternative conventional cementitious materials.

Language: Английский

The role of wastewater treatment in achieving sustainable development goals (SDGs) and sustainability guideline DOI
Khaled Obaideen, Nabila Shehata, Enas Taha Sayed

et al.

Energy Nexus, Journal Year: 2022, Volume and Issue: 7, P. 100112 - 100112

Published: July 10, 2022

Language: Английский

Citations

359
Smart materials and technologies for sustainable concrete construction DOI Creative Commons
Jonny Nilimaa

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

Citations

157
Role of microalgae in achieving sustainable development goals and circular economy DOI
A.G. Olabi, Nabila Shehata, Enas Taha Sayed

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 854, P. 158689 - 158689

Published: Sept. 13, 2022

Language: Английский

Citations

142
Membrane-based water and wastewater treatment technologies: Issues, current trends, challenges, and role in achieving sustainable development goals, and circular economy DOI
Nabila Shehata, Davidson Egirani, A.G. Olabi

et al.

Chemosphere, Journal Year: 2023, Volume and Issue: 320, P. 137993 - 137993

Published: Jan. 28, 2023

Language: Английский

Citations

110
A Comprehensive Review on Fly Ash-Based Geopolymer DOI Open Access
Ismail Luhar, Salmabanu Luhar

Journal of Composites Science, Journal Year: 2022, Volume and Issue: 6(8), P. 219 - 219

Published: July 27, 2022

The discovery of an innovative category inorganic geopolymer composites has generated extensive scientific attention and the kaleidoscopic development their applications. escalating concerns over global warming owing to emissions carbon dioxide (CO2), a primary greenhouse gas, from ordinary Portland cement industry, may hopefully be mitigated by construction with lower footprint. current manuscript comprehensively reviews rheological, strength durability properties composites, along shedding light on recent key advancements viz., micro-structures, state-of-the-art applications such as immobilization toxic or radioactive wastes, digital concrete, 3D-printed fly ash-based geopolymers, hot-pressed foam etc. They have crystal-clear role play in offering sustainable prospect part accessible toolkit building materials—binders, cements, mortars, concretes, Consequently, present scientometric review is grist for mill aims contribute single note document assessing exhaustive research findings establishing viability most promising, durable, sustainable, affordable, user eco-benevolent materials future.

Language: Английский

Citations

83
Application of geopolymers for treatment of industrial solid waste containing heavy metals: State-of-the-art review DOI

Shuying Wang,

Bo Liu, Qian Zhang

et al.

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 390, P. 136053 - 136053

Published: Jan. 20, 2023

Language: Английский

Citations

74
Mechanical performance of recycled aggregate concrete in green civil engineering: Review DOI Creative Commons
Dayang Wang,

Chenxuan Lu,

Zhimeng Zhu

et al.

Case Studies in Construction Materials, Journal Year: 2023, Volume and Issue: 19, P. e02384 - e02384

Published: Aug. 9, 2023

The use of recycled aggregate concrete can save natural resources and reduce environmental pollution, which has been widely concerned in recent years. physical mechanical properties (RAC) are studied based on the literature waste coarse (RCCA) brick (RBCA) published around world last 40 years, order to understand study performance common RAC. characteristics (water absorption, density, crushing value) two aggregates with same particle size were compared. effects effective water–cement ratio (e–W/C), cement (A/C), content compressive explained, microstructure is explored. influence its elastic modulus (Ec) correlation between Ec strength also investigated. Finally, prospects made for types RAC further research by scholars.

Language: Английский

Citations

63
Recent advances in sustainable lightweight foamed concrete incorporating recycled waste and byproducts: A review DOI

Shizhao Yang,

Xujiang Wang,

Zhijuan Hu

et al.

Construction and Building Materials, Journal Year: 2023, Volume and Issue: 403, P. 133083 - 133083

Published: Aug. 26, 2023

Language: Английский

Citations

48
Mechanical performance of low-carbon ultra-high performance engineered cementitious composites (UHP-ECC) with high-volume recycled concrete powder DOI
Xin Liu,

Chaofeng Liang,

Zhiyu Zhang

et al.

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 88, P. 109153 - 109153

Published: March 27, 2024

Language: Английский

Citations

42
The use of machine learning techniques to investigate the properties of metakaolin-based geopolymer concrete DOI Creative Commons

Seyed Ali Eftekhar Afzali,

Mohsen Ali Shayanfar, Mohammad Ghanooni-Bagha

et al.

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 446, P. 141305 - 141305

Published: Feb. 20, 2024

The construction industry significantly contributes to global greenhouse gas emissions, highlighting the imperative for developing environmentally friendly materials. Geopolymers, particularly those utilizing metakaolin (MK), have emerged as a promising green alternative conventional concrete. However, acquisition of MK-based geopolymer concrete with optimal mechanical properties poses challenges due numerous influential factors, disagreement over various findings, and lack reliable predictive model. This study aimed address this gap by employing wide range machine learning methods, namely gradient boosting machine, random forest, decision tree, artificial neural network, support vector machine. Different optimization regularization techniques were used comprehensively understand factors affecting compressive strength concrete, including mixture design, chemical characteristics initial binder activators, different curing regimes. results demonstrated exceptional performance in predicting achieving coefficient determination 0.983 mean absolute error 1.615 MPa. Additionally, employed partial dependence plots, feature importance analysis, SHapley Additive exPlanations (SHAP) elucidate proposed models. coarse-to-fine aggregate ratio, H2O/Na2O molar extra water content, sodium hydroxide concentration identified most critical parameters research advancing development sustainable materials, streamlining experimental tasks, minimizing need labor improving time efficiency, providing valuable insights optimizing design

Language: Английский

Citations

30