Composite toughened cement stabilized macadam with rubber/PVA fiber: Deformation, durability and stress evacuation effect DOI
Chaohui Wang,

Haowen Xue,

Penghui Wen

et al.

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 479, P. 141487 - 141487

Published: May 1, 2025

Language: Английский

Cross-scale study on the interaction behaviour of municipal solid waste incineration fly ash-asphalt mortar: a macro-micro approach DOI

Xiaolong Sun,

Hualong Xu,

Xiao Qin

et al.

International Journal of Pavement Engineering, Journal Year: 2025, Volume and Issue: 26(1)

Published: March 13, 2025

Language: Английский

Citations

1
Study on the performance and mechanism of graphene oxide / polyurethane composite modified asphalt DOI Creative Commons

Tengteng Guo,

Zhenxia Li, Yuanzhao Chen

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 20, 2025

In order to enhance the aging resistance, high temperature stability and low crack resistance of asphalt pavement materials, 0.06% oxidized graphene (GO) 12% polyurethane (PU) were used as composite modifiers modify base asphalt. The RTFOT test was conducted evaluate anti-aging performance modified rheological properties GO/PU evaluated. SEM FTIR tests analyze microstructure results show that basic meets requirements is improved. improvement rutting factor frequency scanning master curve shows its better anti-rutting deformation ability. strain recovery R-value for bitumen increased by 20.7% at a stress level 0.1 kPa, unrecoverable creep compliance Jnr decreased 76.0%, showing excellent viscoelastic properties. stiffness S 31.2% at−12 °C, indicating it had good surface relatively smooth, exhibiting stable network structure, thus solving PU segregation problem in matrix asphalt.The change infrared spectrum absorption peak reaction between isocyanate groups aromatic esters bitumen, GO oxidizes with the-CH functional group asphalt, content C = double bond changes during modification process, based on chemical supplemented physical modification.

Language: Английский

Citations

0
Research on the properties of polymer stabilized coal gangue materials in rubber powder slag base DOI Creative Commons
Zhenxia Li,

Tengteng Guo,

Chenze Fang

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 10, 2025

In order to solve the problems of high energy consumption in cement production, environmental pollution by coal gangue, shortage aggregate resources road engineering, and improvement shrinkage performance semi-rigid base materials, properties rubber powder slag-based polymer stabilized gangue materials were studied. On basis raw material tests, mechanical durability geopolymer with different content substitution rate The unconfined compressive strength, indirect tensile rebound modulus, freeze–thaw dry tests crushed stone/coal (GSS/GSG) mixtures contents carried out. microstructure mixture was analyzed scanning electron microscopy spectrum analysis. results show that increase content, strength frost resistance GSS continue increase, but its drying will be adversely affected. When replaces natural gravel, all aspects has decreased, have decreased significantly. incorporation slightly reduce material, can effectively improve performance. optimum is 1.2%, coefficient reduced 12.1%. bonding effect C–S–H generated slag promote formation N–A–S–H gel from fly ash. stabilize pore absorption filling geopolymer, so as achieve purpose stabilizing resilient modulus geopolymer.

Language: Английский

Citations

0
The novel rapid curing pavement maintenance seal with a low environmental impact: Preparation and performance evaluation DOI
Qian Chen,

Xiang Lan,

Anquan Li

et al.

Wear, Journal Year: 2025, Volume and Issue: unknown, P. 205919 - 205919

Published: Feb. 1, 2025

Language: Английский

Citations

0
Performance analysis of geopolymer-carbon fiber stabilized steel slag base layer DOI Creative Commons

Tengteng Guo,

Yuanzhao Chen, Zhenxia Li

et al.

Polymer Testing, Journal Year: 2025, Volume and Issue: unknown, P. 108766 - 108766

Published: March 1, 2025

Language: Английский

Citations

0
Compatibility between polyurea resin modifier and asphalt binder based on segregation and rheological parameters DOI Creative Commons
Jianfeng Gao, Tao Guo, Sen Chen

et al.

REVIEWS ON ADVANCED MATERIALS SCIENCE, Journal Year: 2025, Volume and Issue: 64(1)

Published: Jan. 1, 2025

Abstract Polyurea (PUA) resin exhibits excellent flexibility and stress dispersion, its application has been widely explored across various fields in recent years. To assess the potential of PUA materials asphalt binder pavement applications, both modifier modified were prepared this study. The interactions between investigated using scanning electron microscopy storage stability tests, focusing on interaction effects segregation phenomena. optimal particle size for use was identified. Rheological models, including Han curve Cole-Cole plots, employed to examine phase separation behavior PUA-modified binder. Additionally, compatibility analyzed relation thermal properties. correlation mechanical properties explored. results demonstrated that modifiers with smaller sizes exhibited stronger integration base binder, showing improved compatibility. Increasing content exacerbated phenomena system. A strong observed macroscopic achieve favorable while minimizing segregation, comprehensive consideration dosage parameters is necessary optimizing performance binders.

Language: Английский

Citations

0
Composite toughened cement stabilized macadam with rubber/PVA fiber: Deformation, durability and stress evacuation effect DOI
Chaohui Wang,

Haowen Xue,

Penghui Wen

et al.

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 479, P. 141487 - 141487

Published: May 1, 2025

Language: Английский

Citations

0