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Author:

Ji, Jie (Ji, Jie.) | Li, Jinhui (Li, Jinhui.) | Wang, Jiani (Wang, Jiani.) | Suo, Zhi (Suo, Zhi.) | Li, Haimeng (Li, Haimeng.) | Yao, Hui (Yao, Hui.)

Indexed by:

Scopus SCIE

Abstract:

In order to study the influence of different factors on the early strength of the cold recycled emulsified asphalt mixtures, 16 different types of cold recycled mixtures were designed and produced, which were combined with different cement content, water content, and cement-water ratio. The indirect tensile strength (IDT), compressive strength (UCS), tensile strength at 15 & DEG;C (TS), and indirect tensile strength ratio (ITSR) tests were used to test the early strength of the cold recycled mixture. The variance analysis method was utilized to analyze the influence of the single factor on the early strength of the cold recycled mixture. The results show that appropriate cement-water ratio content can effectively improve the early strength of cold recycled mixtures. According to the Spearman correlation coefficient and comparison of each evaluation indicator, IDT and ITSR are significantly affected by various factors, and the results are relatively stable and well-differentiated, which is recommended as indicators of early strength evaluation. Cement-water ratio is recommended as the main control factor to control the early strength of the cold recycled emulsified asphalt mixtures. The optimal cement-water ratio ranges from 0.6 to 1.0, while the cement content is controlled from 1.2% to 1.5% and the water content from 3.8% to 4.3%. This study is of great significance for promoting the design of emulsified asphalt cold regenerative mixture with cement-water ratio and improving and accelerating its early strength development.

Keyword:

Variance analysis Cold recycled emulsified asphalt Cold recycled mixture Early strength Evaluation index Cement-water ratio

Author Community:

  • [ 1 ] [Ji, Jie]Beijing Univ Civil Engn & Architecture, Sch Civil & Transportat Engn, Beijing 100044, Peoples R China
  • [ 2 ] [Li, Jinhui]Beijing Univ Civil Engn & Architecture, Sch Civil & Transportat Engn, Beijing 100044, Peoples R China
  • [ 3 ] [Suo, Zhi]Beijing Univ Civil Engn & Architecture, Sch Civil & Transportat Engn, Beijing 100044, Peoples R China
  • [ 4 ] [Yao, Hui]Beijing Univ Civil Engn & Architecture, Sch Civil & Transportat Engn, Beijing 100044, Peoples R China
  • [ 5 ] [Ji, Jie]Collaborat Innovat Ctr Energy Conservat & Emiss Re, Beijing 100044, Peoples R China
  • [ 6 ] [Wang, Jiani]Collaborat Innovat Ctr Energy Conservat & Emiss Re, Beijing 100044, Peoples R China
  • [ 7 ] [Suo, Zhi]Collaborat Innovat Ctr Energy Conservat & Emiss Re, Beijing 100044, Peoples R China
  • [ 8 ] [Li, Haimeng]Beijing Univ Civil Engn & Architecture, Sch Humanities, Beijing 100044, Peoples R China
  • [ 9 ] [Yao, Hui]Beijing Univ Technol, Coll Metropolitan Transportat, Fac Architecture Civil & Transportat Engn, Beijing Key Lab Traff Engn, 100 Pingleyuan, Chaoyang 100124, Beijing, Peoples R China

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Source :

JOURNAL OF MATERIALS IN CIVIL ENGINEERING

ISSN: 0899-1561

Year: 2023

Issue: 5

Volume: 35

3 . 2 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:19

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 7

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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