Effectiveness of Weight Ratio of Mineral Filler to Effective Bitumen in the Asphalt-mixture Fatigue Performance

IF 1 Q4 ENGINEERING, CIVIL

Jordan Journal of Civil Engineering Pub Date : 2023-01-01 DOI:10.14525/jjce.v17i1.12

Sajjad Rezaei, M. Khabiri, Hamed Abshari, Behzad Pezeshk, Mojtaba Movahed, Amir Khakbazan

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Abstract

The effectiveness of weight ratio of mineral filler to effective bitumen in the fatigue performance of asphalt mixture with integral granules was investigated based on experiments on bitumen mastic (mixture of bitumen and mineral filler passed through sieve grade 200). The experiments included a dynamic shear rheometer, elastic recovery, linear amplitude sweep tests and other performance tests on asphalt mixture, such as fatigue of indirect tensile and resilient modulus test for assessing the medium temperature with various mineral fillerto- bitumen ratios of: 0.4, 0.6, 0.8, 1.0, 1.2, 1.4 and 1.6 for bitumen 70-16 PG. Based on this project, the weight ratio of mineral filler to effective bitumen according to Iran Management and Planning Organization (IMPO234) and SHRP-A407 standard and based on fatigue performance of asphalt mixture was separated and modified. So, to control and modify the medium temperature, the maximum weight ratio of filler to effective bitumen should be considered, which is equal to 0.8. The results of this research showed that for controlling the fatigue performance, the rheological behavior of bitumen mastic should be considered beside the asphalt mixture performance and the bitumen rheological behavior. KEYWORDS: Asphalt mixture, Bitumen mastic, Ratio of filler to bitumen, Performance, Fatigue

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矿物填料与有效沥青的重量比对沥青混合料疲劳性能的影响

通过沥青胶泥(沥青与矿物填料经200级筛分的混合料)试验，研究了矿物填料与有效沥青的重量比对整体颗粒沥青混合料疲劳性能的影响。试验包括动态剪切流变仪、弹性恢复、线性振幅扫描试验和其他沥青混合料的性能试验，如间接拉伸疲劳试验和弹性模量试验，以评估不同矿物填料与沥青比的介质温度:70-16 PG沥青的0.4、0.6、0.8、1.0、1.2、1.4、1.6。根据伊朗管理与规划组织(IMPO234)和SHRP-A407标准，根据沥青混合料的疲劳性能，对矿物填料与有效沥青的重量比进行了分离和改性。因此，要控制和调节介质温度，应考虑填料与有效沥青的最大重量比为0.8。研究结果表明，为了控制疲劳性能，除了沥青混合料性能和沥青流变特性外，还应考虑沥青胶泥的流变特性。关键词:沥青混合料，沥青胶浆，填料沥青比，性能，疲劳

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来源期刊

Jordan Journal of Civil Engineering ENGINEERING, CIVIL-

CiteScore

2.10

自引率

27.30%

发文量

期刊介绍： I am very pleased and honored to be appointed as an Editor-in-Chief of the Jordan Journal of Civil Engineering which enjoys an excellent reputation, both locally and internationally. Since development is the essence of life, I hope to continue developing this distinguished Journal, building on the effort of all the Editors-in-Chief and Editorial Board Members as well as Advisory Boards of the Journal since its establishment about a decade ago. I will do my best to focus on publishing high quality diverse articles and move forward in the indexing issue of the Journal.