Coal gangue based geopolymer as an additive of warm mix asphalt: Preparation and properties DOI Creative Commons
Ning Tang,

Nan Nie,

Wenjie Du

et al.

Materials Research Express, Journal Year: 2024, Volume and Issue: 11(11), P. 115503 - 115503

Published: Nov. 1, 2024

Abstract In contrast to conventional hot mix asphalt technology (HMA), warm (WMA) permits the mixing and compaction of mixture at lower temperatures. This innovative approach is characterized by significant energy savings reduced emissions, making it a sustainable choice for production. paper used coal gangue prepare WMA additive. By leveraging free water in its zeolite-like structure, which evaporates upon heating, bubbles form within bitumen. causes bitumen expand lose viscosity, thereby achieving purpose mixing. Both achieve decline mixture’s temperature provide an effective method utilizing resources. It helps mitigate environmental hazards associated with massive accumulation gangue, including soil contamination resource pollution. Therefore, based on alkali activation theory, this aimed develop novel geopolymer (CG) CG was through microscopic testing analysis storage stability. The impact varying dosages performance examined. foaming test elucidated mechanism behavior CG. Additionally, road analyzed. findings indicate that has abundant pore structures, providing space, as additive exhibits good stability ambient temperature. When dosage 5% mass bitumen, viscosity 130∼140 °C appropriate, results performance. Compared HMA, range 20∼50 °C.

Language: Английский

Properties, hazards and valuable metal recovery technologies of red mud: A review DOI

Peixin Du,

Peng Wang, Xueqian Zhang

et al.

Particuology, Journal Year: 2024, Volume and Issue: 93, P. 328 - 348

Published: July 27, 2024

Language: Английский

Citations

16
Microwave-Enhanced Fe/Al Recovery from Red Mud: Mechanistic Role of Carbothermal Reduction and Alkali Activation in Mineral Transformation DOI
Yuhua Huang,

Wei Mo,

Jinpeng Feng

et al.

Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: unknown, P. 107150 - 107150

Published: April 1, 2025

Language: Английский

Citations

0
Efficient recovery of iron and alumina from red mud by alkali-enhanced magnetization reduction DOI

Yafei Qi,

Xiaolin Pan, Honghe Zheng

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 133146 - 133146

Published: April 1, 2025

Language: Английский

Citations

0
Polymetallic red mud direct materialization strategy towards zero waste emission: Electromagnetic wave absorption conversion and sodium solidification DOI
Bingbing Liu, Chunyu Han,

Siyi Xiao

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(6), P. 114794 - 114794

Published: Nov. 13, 2024

Language: Английский

Citations

1
Red Mud as a Green Dephosphorization Agent: Co-reduction with High Phosphorus Oolitic Hematite for Iron Extraction and Dephosphorization DOI
Xiaoping Wang,

Wenda Lu,

Lingkun Rong

et al.

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

Citations

1
Coal gangue based geopolymer as an additive of warm mix asphalt: Preparation and properties DOI Creative Commons
Ning Tang,

Nan Nie,

Wenjie Du

et al.

Materials Research Express, Journal Year: 2024, Volume and Issue: 11(11), P. 115503 - 115503

Published: Nov. 1, 2024

Abstract In contrast to conventional hot mix asphalt technology (HMA), warm (WMA) permits the mixing and compaction of mixture at lower temperatures. This innovative approach is characterized by significant energy savings reduced emissions, making it a sustainable choice for production. paper used coal gangue prepare WMA additive. By leveraging free water in its zeolite-like structure, which evaporates upon heating, bubbles form within bitumen. causes bitumen expand lose viscosity, thereby achieving purpose mixing. Both achieve decline mixture’s temperature provide an effective method utilizing resources. It helps mitigate environmental hazards associated with massive accumulation gangue, including soil contamination resource pollution. Therefore, based on alkali activation theory, this aimed develop novel geopolymer (CG) CG was through microscopic testing analysis storage stability. The impact varying dosages performance examined. foaming test elucidated mechanism behavior CG. Additionally, road analyzed. findings indicate that has abundant pore structures, providing space, as additive exhibits good stability ambient temperature. When dosage 5% mass bitumen, viscosity 130∼140 °C appropriate, results performance. Compared HMA, range 20∼50 °C.

Language: Английский

Citations

0