Preparation and properties of pre-treated nano-bentonite incorporated styrene-butadiene-styrene (SBS) modified asphalt

Shun Chen; Yingyuan Pan; Bo Zhang; Xingyang He; Ying Su; Qiao Liu; Yingjie Wang; Wentian Wang; Jizhan Chen; Yan Zhu; Songwei Li

Case Studies in Construction Materials (Dec 2023)

Preparation and properties of pre-treated nano-bentonite incorporated styrene-butadiene-styrene (SBS) modified asphalt

Shun Chen,
Yingyuan Pan,
Bo Zhang,
Xingyang He,
Ying Su,
Qiao Liu,
Yingjie Wang,
Wentian Wang,
Jizhan Chen,
Yan Zhu,
Songwei Li

Affiliations

Shun Chen: School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China; Building Waterproof Engineering and Technology Research Centre of Hubei, China
Yingyuan Pan: School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China
Bo Zhang: School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China
Xingyang He: School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China; Building Waterproof Engineering and Technology Research Centre of Hubei, China; Corresponding author at: School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China.
Ying Su: School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China; Building Waterproof Engineering and Technology Research Centre of Hubei, China
Qiao Liu: School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China
Yingjie Wang: School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China
Wentian Wang: School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China
Jizhan Chen: School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China
Yan Zhu: School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China
Songwei Li: China Construction Third Bureau First Engineering Co., LTD, China

Journal volume & issue: Vol. 19
p. e02505

Abstract

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The composite modification method helped improve the viscoelastic properties, aging resistance, and high and low-temperature resistance of asphalt. In this paper, organic modified bentonite (OBT) was successfully prepared by means of liquid phase grinding. The pre-treated OBT was incorporated with styrene-butadiene-styrene (SBS) to prepare modified asphalt (OBTS-MA). It aims at enhancing the properties of composited modified asphalt with new method. After characterizations, the data of three basic indices indicated that the ductility value of OBTS-MA was significantly increased by 210% compared with the asphalt. ATR-FTIR data showed that the carbonyl content of OBTS-MA was markedly lower than that of the asphalt after aging. Nanoindentation and fluorescence microscopy tests revealed that OBT and SBS formed stable structure in OBTS-MA, which significantly optimized the apparent mechanical properties of modified asphalt. This study provided a new idea for optimizing asphalt modification with potential cost-saving and environmentally friendly characteristics. It also performed good prospects and ecological benefits in the future.

Published in Case Studies in Construction Materials

ISSN: 2214-5095 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/case-studies-in-construction-materials

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