Recycling waste gypsum and calcium carbide slag for the production of all-solid-waste supersulfated cement DOI

Changzhi Shao,

Yu’an Gong,

Qingsong Zhang

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(12)

Published: Dec. 1, 2024

The appropriate use of industrial solid waste is an effective method for alleviating environmental pollution. In this study, the potential using desulfurized gypsum (DG), phosphogypsum (PG), dihydrate (G), and calcium carbide slag (CS) in production supersulfated cement (SSC) was investigated. effects various types their dosages on performance hydration process SSC were thoroughly examined. results indicate that as ratio CS to (CS/G) increased, pH whereas fluidity setting time decreased. For same CS/G ratio, SSCs activated by DG (D-CSSC) PG (P-CSSC) exhibited longer times lower values than those G (G-CSSC). Mineralogical analysis microstructural characterization revealed type influenced rate, microstructure, products (type quantity) SSC, thereby affecting its compressive strength. loose pore structure G-CSSC significantly reduced Owing formation a significant amount Calcium aluminum hydrate (C-A-H) gel, D-CSSC demonstrated greater early strength; however, hannebachite hindered late strength development. continuously participated hydration, leading more denser microstructure P-CSSC, which increased This study elucidates effect offers valuable insights enhancing it.

Language: Английский

A new gelling material: Properties of recycled aggregate concrete under conditions of complete cement replacement using steel slag, ore slag, and fly ash DOI
Huijie Wei, H WAN, Shuo Yuan

et al.

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 464, P. 140180 - 140180

Published: Jan. 28, 2025

Language: Английский

Citations

2
Physico-chemical properties of new clinker-free hydraulic binder from metakaolin, anhydrite II and lime DOI
Klára Pulcová, Martina Šídlová,

Lukáš Mauermann

et al.

Open Ceramics, Journal Year: 2025, Volume and Issue: 21, P. 100739 - 100739

Published: Jan. 18, 2025

Language: Английский

Citations

1
Investigation of mechanical, microscopic, and leaching properties of coal-based solid waste geopolymer mortar activated by soda residue and phosphogypsum DOI
Haotian Pang, Wenyue Qi, Yanli Huang

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 947, P. 174459 - 174459

Published: July 3, 2024

Language: Английский

Citations

7
Early-Age Cracking of Fly Ash and GGBFS Concrete Due to Shrinkage, Creep, and Thermal Effects: A Review DOI Open Access
Yingda Zhang, Xinyue Liu,

Ziyi Xu

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(10), P. 2288 - 2288

Published: May 12, 2024

Supplementary cementitious materials (SCMs) are eco-friendly that can partially replace ordinary Portland cement (OPC). The occurrence of early-age cracking in OPC-SCM blended is a significant factor impacting the mechanical properties and durability concrete. This article presents comprehensive review existing research on concrete mix at early ages. To assess effects SCMs concrete, cement-based terms its viscoelastic behavior, evolution performance, factors affect risk ages, reviewed. use be an effective method for mitigating while improving structures. Previous showed shrinkage creep lower than those conventional Moreover, content resulted better resistance to thermal cracking. Proper selection, proportioning, implementation help optimize performance reduce environmental impact mix.

Language: Английский

Citations

5
Role of polyferric sulphate in hydration regulation of phosphogypsum-based excess-sulphate slag cement: A multiscale investigation DOI
Ziyan Wang, Tao Sun, Gaoshang Ouyang

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 948, P. 173750 - 173750

Published: June 10, 2024

Language: Английский

Citations

4
In-situ growth of AFt in early induction stage to generate 3D network with C-S-H for Portland cement crack resistance DOI
Tao Yang, Junlin Lin, Yali Li

et al.

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 467, P. 140349 - 140349

Published: Feb. 11, 2025

Language: Английский

Citations

0
Clean and high-value recycling approach for waste concrete powder: Mechano-chemical activation of pozzolanic activity DOI
Qiang Gao,

Xi-guang Li,

Xiaodong Shi

et al.

Powder Technology, Journal Year: 2025, Volume and Issue: unknown, P. 120988 - 120988

Published: March 1, 2025

Language: Английский

Citations

0
Study on the thermo-mechanical properties of PEG/ordinary Portland cement-based phase change composite modified by calcium aluminate cement DOI

Hangkai Yu,

Guochen Sang, Zhixuan Wang

et al.

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 447, P. 138079 - 138079

Published: Sept. 2, 2024

Language: Английский

Citations

1
Recycling waste gypsum and calcium carbide slag for the production of all-solid-waste supersulfated cement DOI

Changzhi Shao,

Yu’an Gong,

Qingsong Zhang

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(12)

Published: Dec. 1, 2024

The appropriate use of industrial solid waste is an effective method for alleviating environmental pollution. In this study, the potential using desulfurized gypsum (DG), phosphogypsum (PG), dihydrate (G), and calcium carbide slag (CS) in production supersulfated cement (SSC) was investigated. effects various types their dosages on performance hydration process SSC were thoroughly examined. results indicate that as ratio CS to (CS/G) increased, pH whereas fluidity setting time decreased. For same CS/G ratio, SSCs activated by DG (D-CSSC) PG (P-CSSC) exhibited longer times lower values than those G (G-CSSC). Mineralogical analysis microstructural characterization revealed type influenced rate, microstructure, products (type quantity) SSC, thereby affecting its compressive strength. loose pore structure G-CSSC significantly reduced Owing formation a significant amount Calcium aluminum hydrate (C-A-H) gel, D-CSSC demonstrated greater early strength; however, hannebachite hindered late strength development. continuously participated hydration, leading more denser microstructure P-CSSC, which increased This study elucidates effect offers valuable insights enhancing it.

Language: Английский

Citations

0