Testing and Evaluation of Hard Sandstone Aggregate in Hot Mix Asphalt

Author:

PeiRong Liu12ORCID,LiMing Yang3,Jun Huang1,ChaoYang Li1,DaTian Yang4ORCID

Affiliation:

1. Guanxi Liubin Expressway Construction & Development Co., Ltd., Nanning 530023, China

2. Guanxi Nanning Second Ring Expressway Co., Ltd., Nanning 530029, China

3. Guangxi Communication Design Group Co., Ltd., Nanning 530029, China

4. College of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China

Abstract

To address the shortage of the aggregate used in a hot mix asphalt (HMA) pavement in Guangxi, properties such as the aggregate crushing, polished stone, and Los Angeles abrasion values of a type of hard sandstone aggregate used in HMA were tested after various conditioning treatments. The hard sandstone aggregate met the technical requirements for aggregate in HMA. In addition, the influence of the Marshall compaction on the hard sandstone aggregate-combined grading was tested. The combined grading curve changed a little, and the aggregate satisfied the corresponding technical requirements. Therefore, according to the abovementioned results, the hard sandstone aggregate can be used as a coarse aggregate in HMA.

Funder

Research on the Application of Granite Aggregates on the Highway from Guilin to Qinzhou Port (Nanning Liujing to Binyang section) in Guangxi

Publisher

Hindawi Limited

Reference27 articles.

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4. Optimization of Sandstone Concrete Pavement Materials Based on Finite Element Method

5. Study on the Characteristics of Sandstone and Feasibility to Replace Limestone in Cement Stabilized Macadam Base

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