Study on fire resistance and mechanical properties of modified recycled waste oyster powder in asphalt binder

Study on fire resistance and mechanical properties of modified recycled waste oyster powder in asphalt binder

In this study, an eco‐friendly approach is presented for the innovative use of waste oyster shell (OS) powder modified with zinc stannate, aliphatic alcohols, and silane coupling agents blended with styrene‐butadiene‐styrene (SBS) modified asphalt to make a flame‐retardant binder (modified oyster sh...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied polymer science Vol. 141; no. 24
Main Authors: Ren, Denghui, Deng, Shilin, L.V., Yanying, Li, Cao, Yang, Qingzhao, Lai, Fang, Li, Jing
Format: Journal Article
Language:English
Published: Hoboken, USA John Wiley & Sons, Inc 20-06-2024
Wiley Subscription Services, Inc
Subjects:
Aliphatic alcohols
Asphalt
Binders (materials)
Butadiene
Coastal zone
Coupling agents
eco‐friendly applications
Fire resistance
flame retardancy
Flame retardants
Mechanical properties
Modulus of elasticity
oyster shell
Oysters
Performance tests
SBS asphalt
Smoke
Storage modulus
Styrenes
Thermal stability
VOCs
Volatile organic compounds
Zinc stannate
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this study, an eco‐friendly approach is presented for the innovative use of waste oyster shell (OS) powder modified with zinc stannate, aliphatic alcohols, and silane coupling agents blended with styrene‐butadiene‐styrene (SBS) modified asphalt to make a flame‐retardant binder (modified oyster shell [MOS]/styrene‐butadiene‐styrene [SBS]/MA), which is rendered flame retardant and smoke suppressive. Compared with the original SBS/MA, MOS/SBS/MA with a 2% addition rate showed a 35.44% increase in ultimate oxygen index, a 30.62% reduction in peak exotherm, a 10.87% reduction in smoke density, and a 75% reduction in volatile organic compound (VOC) emissions. It also has excellent mechanical properties, with increases in composite modulus, elastic modulus, and storage modulus of 68.58%, 97.29%, and 59.59%, respectively, at 46°C. The thermal stability of MOS/SBS/MA is also improved, with a decomposition temperature 26°C higher than that of SBS/MA. Pavement performance tests show that the water‐soaked Marshall's split strength has increased by 3.87% and the coefficient of rutting by 3.51%. Increased by 3.51%, this method effectively utilizes the waste OS, improves the fire‐retardant properties of asphalt while retaining the mechanical properties of the modified asphalt binder, and provides a model for developing sustainable fire‐retardant asphalt in coastal areas. Discarded oyster power, after being coated with zinc stannate and fatty alcohol, achieved good flame retardancy and mechanical properties.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.55504