The Property Research on Interfacial Modificated Semi-Flexible Pavement Material

Yang, Yan; Huang, Shao Long; Ding, Qing Jun; Peng, Xin

doi:10.4028/www.scientific.net/amm.71-78.1090

Cited by 8 publications

(4 citation statements)

References 2 publications

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“…Interface modifier commonly refers to silane coupling agent (SCA) or other additives, which can enhance the cohesive strength of interfaces between asphalt and cement to protect weak interfaces from cracking [79]. With the increase of the dosage of SCA, all properties of GSP are improved, especially shear resistance [88,89].…”

Section: Interface Modifiersmentioning

confidence: 99%

Influential Factors and Evaluation Methods of the Performance of Grouted Semi-Flexible Pavement (GSP)—A Review

Guo

Hao

2021

Applied Sciences

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Grouted Semi-flexible Pavement (GSP) is a novel pavement composed of open-graded asphalt concrete grouted with high-fluidity cement mortar. Due to its excellent load-bearing and anti-rutting performance, it has great potential as anti-rutting overlay and surface in road construction. However, the understanding of GSP performance remains limited and pertinent findings are inconsistent. This article aims to provide a systematic literature review for the articles which were published between 2000 and 2020 on GSP, explore the problems in the recent research, identify knowledge gaps, and deliver recommendations for future research. The influential factors and the relative evaluation methods of GSP performance are summarized and discussed in this article.

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Section: Interface Modifiersmentioning

confidence: 99%

Influential Factors and Evaluation Methods of the Performance of Grouted Semi-Flexible Pavement (GSP)—A Review

Guo

Hao

2021

Applied Sciences

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“…The molded granite specimen was 4 cm × 3 cm × 3 cm in size, and the specimen is shown in Figure 2. The mortar was prepared using water, cement, and special additives (including sand), which was provided by Guangdong Longhu Technology Co., Ltd. (Shantou, China) [26], using a ratio of 0.23 of water to powder (cement and additives), and a cement/additive ratio of 45:55 to produce the cement mortar. An image of the prepared mortar is shown in Figure 3.…”

Section: Test Aggregatesmentioning

confidence: 99%

Performance and Fracture Analysis of Composite Interfaces for Semi-Flexible Pavement

Liu

Cai

et al. 2021

Coatings

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Semi-flexible pavement is widely used in pavement engineering due to its excellent rutting resistance; however, it mainly fails due to cracking. Therefore, it is important to understand the properties of the aggregate–mortar–asphalt interfacial transition zone, to better understand the cracking mechanism of the semi-flexible pavement. In this work, we used pull-off tests and digital image analysis technology to compare and analyze the interfacial tensile strength and granite–bitumen–mortar interactions in three types of asphalt (70# matrix asphalt, PG76-22 modified asphalt and S-HV modified asphalt) at different curing ages. The analysis results showed that, for the three different bitumen materials, with settled mortar, the peak interfacial tensile strength values all occurred at approximately 14 d of curing. In addition, the order of the tensile strength followed the order of asphalt penetration degree; the order of the interfacial water damage resistance from weak to strong was 70# asphalt cementation specimen, PG76-22 modified asphalt cementation specimen, and S-HV modified asphalt cementation specimen. The results of this analysis highlight the original contributions of the optimum curing time for the composite interface of semi-flexible pavement materials prepared with different asphalts to reach optimum crack resistance.

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“…Experience of applying PG82-modified asphalt shows that the rutting problem of long steep slopes has not been completely solved [9,10]. Poured, semi-flexible pavement structures are not wear-resistant and cannot play the function of a wear layer in pavement structures [11][12][13]. The research shows that epoxy asphalt pavements exhibit excellent performances, high-temperature stability, fatigue durability, and aging resistance [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Study of Low-Content Epoxy Asphalt Mixture Applied to the Road

Li,

Luo,

Wang

et al. 2024

Buildings

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To realize the application of epoxy asphalt concrete on roads and solve the problem of the high cost of epoxy asphalt concrete and the causes of bulging in the construction process, a low-content epoxy asphalt mixture was experimentally studied. Rheological and microscopic tests were carried out to study its performance. At the same time, 17 kinds of low-content asphalt mixture Marshall test pieces and rut plate test pieces with different oil stone ratios were made. Their road performances were tested, and a watertight breathable epoxy asphalt mixture was studied to solve the bulging problem. The research shows that, for ordinary roads, a content of epoxy resin of 10–15% can meet both the high-temperature and the low-temperature requirements. For sections with special rutting resistance requirements, a controlled epoxy resin content between 15 and 30% is recommended. When the content of epoxy resin is greater than 30%, epoxy asphalt initially forms a crosslinked spatial network. An epoxy asphalt with a complex structure from asphaltene to epoxy, with ultra-high performance, can be used for small steel bridge pavements. A BBR test showed that, with an increase in epoxy resin content, the low-temperature performance of asphalt gradually weakens. When the content was 20%, epoxy asphalt’s low-temperature performance was weaker than that of SBS-modified asphalt. Under extremely low-temperature conditions, the performance of epoxy asphalt could not meet the specifications. When the voids of low equivalent epoxy asphalt mixture are controlled at 4.1–4.5%, it is watertight and breathable; this can solve the problem of bulging and greatly reduce the cost of projects.

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The Property Research on Interfacial Modificated Semi-Flexible Pavement Material

Cited by 8 publications

References 2 publications

Influential Factors and Evaluation Methods of the Performance of Grouted Semi-Flexible Pavement (GSP)—A Review

Influential Factors and Evaluation Methods of the Performance of Grouted Semi-Flexible Pavement (GSP)—A Review

Performance and Fracture Analysis of Composite Interfaces for Semi-Flexible Pavement

Study of Low-Content Epoxy Asphalt Mixture Applied to the Road

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