Preparation of geopolymers from thermally activated lithium slag as sole precursor: Mechanical properties and microstructure DOI Creative Commons

Xiaofeng Luo,

Liang Huang, Yin Li

et al.

Case Studies in Construction Materials, Journal Year: 2024, Volume and Issue: 20, P. e03248 - e03248

Published: May 7, 2024

Lithium slag (LS) is a waste residue generated during lithium extraction, posing significant environmental challenge due to its extensive accumulation. This study proposes method of utilizing thermally activated LS as the sole precursor for geopolymer synthesis. The thermal activation mechanism was investigated using XRD, FTIR, ICP, and SEM techniques, while exploring optimal composition geopolymers(LSG). research revealed that heating at 700 °C increased amorphous content from 15.9 % 48.1 %, altering chemical structure aluminosilicates enhancing leaching capacity in alkaline environments, thereby boosting reactivity. activator modulus alkali equivalent were found significantly influence strength microstructure LSG. As 1.0 1.4, initially rose before declining, whereas progressively with 0.10 0.16. synthesized 1.2 0.16 exhibited highest compressive 53.1 MPa after 28 days. Test results indicated internal LSG primarily comprised unreacted particles, N(C)-A-S-H gel, microcracks. facilitated dissolution Si4+ Al3+ within LS, intensifying geopolymerization produce more densifying strength. elucidates by which high-temperature calcination enhances reactivity, well impact on microstructural properties LSG, offering new insights into engineering applications high-performance cementitious materials.

Language: Английский

A review on fly ash high-value synthesis utilization and its prospect DOI Creative Commons
Min Wang, Dong Chen, Hui Wang

et al.

Green Energy and Resources, Journal Year: 2024, Volume and Issue: 2(1), P. 100062 - 100062

Published: March 1, 2024

As a common industrial solid waste, fly ash requires proper processing and utilization to alleviate environmental pressure. In contrast earlier low-value treatment methods for ash, such as its use in construction materials, it is more practical explore the high-value of considering elemental ingredient morphological characteristics. Herein, this work comprehensively reviews research progress extracting preparing silica, alumina, zeolite respectively derived from silicon aluminum elements ash. Specifically, mechanisms processes various are elucidated detail, virtues drawbacks production technologies compared identify economical environmentally friendly method. Importantly, first energy storage electrode materials. Different synthesis strategies thoroughly examined, especially fully utilizing primary resource, converting into Finally, paper summarizes opportunities challenges associated with

Language: Английский

Citations

22

Metaheuristic optimization of machine learning models for strength prediction of high-performance self-compacting alkali-activated slag concrete DOI
Suraj Kumar Parhi, Soumyaranjan Panda, Saswat Dwibedy

et al.

Multiscale and Multidisciplinary Modeling Experiments and Design, Journal Year: 2024, Volume and Issue: 7(3), P. 2901 - 2928

Published: March 4, 2024

Language: Английский

Citations

16

Recycled aggregate concrete: a sustainable approach to concrete production DOI
Ali Akbar Firoozi, Ali Asghar Firoozi

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 415 - 459

Published: Jan. 1, 2025

Language: Английский

Citations

4

Sustainable Infrastructure Solutions: Advancing Geopolymer Bricks via Eco-Polymerization of Plastic Waste DOI Creative Commons
Md. Zia ul Haq, Hemant Sood, Rajesh Kumar

et al.

E3S Web of Conferences, Journal Year: 2023, Volume and Issue: 430, P. 01203 - 01203

Published: Jan. 1, 2023

This article investigates the possible synergy between geopolymers and plastics as a method for sustainable composite materials, addressing growing worldwide need environmentally responsible solutions. Geopolymers, which provide low-carbon alternatives to traditional building are being studied alongside plastics, recognised their flexibility lightweight properties. The research emphasises ability of this attain increased mechanical, thermal, chemical qualities by investigating molecular-level interaction processes, enhanced material properties, applications in diverse sectors. Furthermore, assesses environmental consequences, such decreased carbon emissions energy usage, while also analysing manufacturing scaling problems. work lays way unique route science, poised greatly contribute more resilient built environment, giving insights into both present accomplishments future possibilities.

Language: Английский

Citations

41

Mathematical modeling techniques to predict the compressive strength of pervious concrete modified with waste glass powders DOI
Soran Abdrahman Ahmad,

Serwan Rafiq,

Hozan Hilmi

et al.

Asian Journal of Civil Engineering, Journal Year: 2023, Volume and Issue: 25(1), P. 773 - 785

Published: Aug. 1, 2023

Language: Английский

Citations

36

Artificial intelligence-based prediction of strengths of slag-ash-based geopolymer concrete using deep neural networks DOI
Solomon Oyebisi, Thamer Alomayri

Construction and Building Materials, Journal Year: 2023, Volume and Issue: 400, P. 132606 - 132606

Published: Aug. 3, 2023

Language: Английский

Citations

34

Mechanical properties prediction of geopolymer concrete subjected to high temperature by BP neural network DOI

W.L. Zhong,

H. Ding,

Xinxin Zhao

et al.

Construction and Building Materials, Journal Year: 2023, Volume and Issue: 409, P. 133780 - 133780

Published: Oct. 21, 2023

Language: Английский

Citations

23

Machine learning approach for predicting compressive strength in foam concrete under varying mix designs and curing periods DOI Creative Commons
Soran Abdrahman Ahmad, Hemn Unis Ahmed,

Serwan Rafiq

et al.

Smart Construction and Sustainable Cities, Journal Year: 2023, Volume and Issue: 1(1)

Published: Nov. 10, 2023

Abstract Efforts to reduce the weight of buildings and structures, counteract seismic threat human life, cut down on construction expenses are widespread. A strategy employed address these challenges involves adoption foam concrete. Unlike traditional concrete, concrete maintains standard composition but excludes coarse aggregates, substituting them with a agent. This alteration serves dual purpose: diminishing concrete’s overall weight, thereby achieving lower density than regular creating voids within material due agent, resulting in excellent thermal conductivity. article delves into presentation statistical models utilizing three different methods—linear (LR), non-linear (NLR), artificial neural network (ANN)—to predict compressive strength These formulated based dataset 97 sets experimental data sourced from prior research endeavors. comparative evaluation outcomes is subsequently conducted, leveraging benchmarks like coefficient determination ( R 2 ), root mean square error (RMSE), absolute (MAE), aim identifying most proficient model. The results underscore remarkable effectiveness ANN evident model’s value, which surpasses that LR model by 36% 22%. Furthermore, demonstrates significantly MAE RMSE values compared both NLR models.

Language: Английский

Citations

23

Rubbered light concrete containing recycled PET fiber compared to macro-polypropylene fiber in terms of SEM, mechanical, thermal conductivity and electrochemical resistance DOI
Ibrahim M. El‐Mehasseb, Dina E. Tobbala

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 415, P. 135010 - 135010

Published: Jan. 23, 2024

Language: Английский

Citations

11

Geopolymer mortars having glassy materials considering mechanical and microstructural features DOI
Talip Çakmak, İlker Ustabaş, Zafer Kurt

et al.

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 91, P. 109738 - 109738

Published: May 23, 2024

Language: Английский

Citations

10