The Effect of Air Void on the Laboratory Properties of Polyurethane Mixtures DOI Open Access
Yong Zhou, Shijie Ma, Chee Lip Gan

et al.

Coatings, Journal Year: 2025, Volume and Issue: 15(2), P. 228 - 228

Published: Feb. 14, 2025

Polyurethane (PU) materials, with their excellent mechanical properties, durability, and fatigue resistance, hold promise for addressing the challenges of aging, environmental pollution, segregation during storage modified asphalt mixtures, thereby extending lifespan pavements enhancing level service. Although studies have been conducted on road performance PU mixtures that compared them there is relatively less research how air void affects performance. This study systematically investigates dynamic characteristics dense-graded at three ranges—1%–3%, 3%–5%, 5%–7%—and verifies effectiveness through statistical methods. The results show voids a significant impact Compared to low voids, high can increase high-temperature by 12%–33%. However, higher also lead decrease in resistance water damage, reduction about 9%–24%. When range mixture has better stability. Therefore, when designing reasonable should be selected based engineering conditions achieve optimal pavement structure combination save investment. provides scientific basis design application lays foundation further understanding mechanisms.

Language: Английский

The Effect of Air Void on the Laboratory Properties of Polyurethane Mixtures DOI Open Access
Yong Zhou, Shijie Ma, Chee Lip Gan

et al.

Coatings, Journal Year: 2025, Volume and Issue: 15(2), P. 228 - 228

Published: Feb. 14, 2025

Polyurethane (PU) materials, with their excellent mechanical properties, durability, and fatigue resistance, hold promise for addressing the challenges of aging, environmental pollution, segregation during storage modified asphalt mixtures, thereby extending lifespan pavements enhancing level service. Although studies have been conducted on road performance PU mixtures that compared them there is relatively less research how air void affects performance. This study systematically investigates dynamic characteristics dense-graded at three ranges—1%–3%, 3%–5%, 5%–7%—and verifies effectiveness through statistical methods. The results show voids a significant impact Compared to low voids, high can increase high-temperature by 12%–33%. However, higher also lead decrease in resistance water damage, reduction about 9%–24%. When range mixture has better stability. Therefore, when designing reasonable should be selected based engineering conditions achieve optimal pavement structure combination save investment. provides scientific basis design application lays foundation further understanding mechanisms.

Language: Английский

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