Investigation of the performance and life cycle assessment of alkali-activated sintered sludge-slag-based permeable concrete DOI Creative Commons
Xiaohui Ning,

Jiayang Zhang,

Chao Zhuang

et al.

Frontiers in Materials, Journal Year: 2024, Volume and Issue: 11

Published: Nov. 19, 2024

As urbanization continues to accelerate, the application of permeable concrete is becoming an increasingly prevalent practice. Nevertheless, carbon dioxide emission issue associated with traditional cannot be overlooked. In this study, alkali-activated sintered sludge and slag were employed as raw materials prepare sludge-slag-based concrete. The effects calcination temperature, content, binder-to-aggregate ratio on compressive strength, porosity, permeability coefficient investigated through implementation one-way experiments. formation mechanism was analyzed using scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS), a assessment performed. findings indicated that increase in content resulted notable decline 28-day accompanied by reduction Ca/Si C-A-S-H hydration products, from 1.08 0.35. Conversely, demonstrated abiotic losses declined markedly effectively mitigating burden construction materials.

Language: Английский

Amended compacted clay liner for containment of copper-laden leachate in tailings reservoirs DOI Creative Commons
Yuzhang Bi,

Xinpo Sun,

Min Chen

et al.

Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Journal Year: 2025, Volume and Issue: 11(1)

Published: March 3, 2025

Language: Английский

Citations

2

Killing three birds with one stone: A novel valorization strategy for comprehensive utilization of waste titanium gypsum DOI
Xiao Lin, Hongwen Liu,

Zhen-Xing Zhou

et al.

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 442, P. 137680 - 137680

Published: July 31, 2024

Language: Английский

Citations

8

Securing gypsum demand in cement industry by gypsum by-products: Current challenges and prospects DOI

A. Sina,

Jamal Ait Brahim,

Babar Ali

et al.

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: unknown, P. 101034 - 101034

Published: Oct. 1, 2024

Language: Английский

Citations

6

Exploring the feasibility of using fluidized bed homogeneous crystallization technology to recover sulfate ions from briny water as calcium sulfate pellets DOI

Hun-Yi Liu,

Anabella C. Vilando,

Thi-Hanh Ha

et al.

Desalination, Journal Year: 2024, Volume and Issue: 592, P. 118174 - 118174

Published: Oct. 5, 2024

Language: Английский

Citations

5

Effects of different admixtures on the working performance and mechanical properties of phosphogypsum slag-based composite cementitious materials DOI
Hui Lin, Yue Li, Bin Yang

et al.

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 95, P. 110268 - 110268

Published: July 23, 2024

Language: Английский

Citations

4

Development of a Recycling Process for the Recovery of Gypsum Stone from Stockpile Material DOI Creative Commons

Jacob Fenner,

J. Luh,

Bengi Yagmurlu

et al.

Recycling, Journal Year: 2025, Volume and Issue: 10(1), P. 12 - 12

Published: Jan. 16, 2025

Due to changes in the German government’s energy concept, amount of gypsum produced flue gas desulfurisation plants (FGD gypsum) will fall from 5 million tons per year 1 or less by 2038 at latest. As 2016, FGD accounts for 55% mix. The resulting raw material gap must be closed through innovative recycling concepts, such as processing existing mine dumps. process development aims achieve a calcium sulfate dihydrate content 85% and reduction stockpile volume 50%. main components stockpiles are form stone well clay minerals organic matter. Successful laboratory tests were transferred pilot scale jigging machine with dewatering screening. water is circulated throughout entire process. heavy fraction 76% when measured ICP OES 87% via thermogravimetric methods. Furthermore, pilot-scale dry screening on took place, up 1500 could processed. fluctuating weather conditions, quality was subject significant variations. Under optimal 60% feed recovered stone; however, nearly impossible during rain; therefore, combination downstream recommended.

Language: Английский

Citations

0

Ecological and human health risks of potentially toxic elements (PTEs) in street dust of Al-Hillah City, Iraq using Monte Carlo simulation DOI

Rafeef Fadhil Al-Rubaye,

Fatemeh Kardel, Reza Dehbandi

et al.

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 966, P. 178722 - 178722

Published: Feb. 1, 2025

Language: Английский

Citations

0

Influence of dicarboxylic acid modifiers on the growth habits of α-hemihydrate gypsum crystals prepared from desulfurized gypsum and its mechanisms of action DOI

K. An,

Shuhui Li, Xuemao Guan

et al.

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 467, P. 140321 - 140321

Published: Feb. 13, 2025

Language: Английский

Citations

0

Greenhouse gas emissions of global construction material production DOI Creative Commons
Seth Kane, Josefine A. Olsson, Sabbie A. Miller

et al.

Environmental Research Infrastructure and Sustainability, Journal Year: 2025, Volume and Issue: 5(1), P. 015020 - 015020

Published: March 6, 2025

Abstract Global production of building materials is a primary contributor to greenhouse gas (GHG) emissions, but the these necessary for modern infrastructure and society. Understanding GHG emissions from in context their function critical decarbonizing this important sector. In work, we present estimates global production, approximate ranges material properties 12 classes provide unified dataset across types. This drew industry analyses emission factors within type, broad reporting thermal mechanical compare both between Globally, 2019, estimate 42.8 Gt were produced, with 38.6 used construction industry. As result 9.3 CO 2 was emitted, or 25% fossil 5.8 (16% emissions) due applications. Both are primarily driven by structural materials, such as concrete steel. Material selection can play key role reducing function, variation per unit strength 0.001–0.1 kg /kg/MPa insulation R -value/thickness 0.018–0.14 /kg/(K⋅m W −1 ))). The developed supporting decision-making providing source examining properties, quantity produced.

Language: Английский

Citations

0

Shear strength parameters prediction of rock materials using hybrid machine learning model DOI
Yanhui Cheng, Dongliang He, Hongwei Liu

et al.

Nondestructive Testing And Evaluation, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 24

Published: March 7, 2025

Language: Английский

Citations

0