The Influence of Block Thickness on the Performance of Asphalt Paving Blocks

Abdelgalil, Ahmed; Nor, Hasanan Md.

doi:10.19026/rjaset.7.507

Cited by 8 publications

(2 citation statements)

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“…Zhang et al conducted a study to compare the mechanical characteristics of the precast hot-mix asphalt block with the precast mortar block, and based on the research result, it can be concluded that the precast HMA paver block has good resistance to deformation and rutting at par with conventional paver blocks, and for different climatic conditions and environments, the precast bituminous blocks should be designed to meet the desired gradation and requirement [50]. Abdelgalil et al conducted a study on the influence of block thickness on the performance of asphalt blocks, and observed that with a decrease in block thickness of the asphalt block, the static load resistance also decreases [51].…”

Section: Rap Studies Ref Literaturementioning

confidence: 99%

Development and Evaluation of Sustainable Bituminous Paver Blocks

Radhakrishnan

Dhurai

2023

Recycling

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Most road surfaces globally are constructed using bituminous materials. The construction of new roads and the maintenance of existing ones demand a huge amount of virgin natural aggregates. Depletion of resources that takes place during the construction of the road has an impact on cost and also on the environment. Hence, there is a need to reduce virgin aggregate use for bituminous pavement construction. This can be achieved by utilizing sustainable materials such as marble waste and reclaimed asphalt pavement (RAP) in hot mix asphalt (HMA)-type road construction. This research work is focused on sustainable development goal (SDG) 12, exclusively on the target number 12.5 which describes the recycling and reuse of materials. However, no investigations were seen to be reported on the integrated utilization of sustainable materials and RAP in bituminous paver blocks. The bituminous mixes were evaluated based on strength and compared with the control mix in this study. Bituminous paver blocks were then cast using sustainable materials and tested in the laboratory to assess the performance of the blocks through a compression test, Cantabro loss test, and wheel rut test. The test results gave satisfactory values; hence, these bituminous blocks can be used for service maintenance of the pavement structures. The study indicates that using sustainable material along with RAP in blocks can provide an eco-friendly, easily maintainable pavement system which makes it a key approach to SDG 9 as well, in terms of innovative infrastructure solutions.

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Section: Rap Studies Ref Literaturementioning

confidence: 99%

Development and Evaluation of Sustainable Bituminous Paver Blocks

Radhakrishnan

Dhurai

2023

Recycling

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“…The road structure has been deteriorating rapidly over the years because of increasing traffic density, axle loading, and low maintenance services [1][2][3][4]. Therefore, the asphalt mixture must be improved to reduce pavement surface deterioration and increase durability [5][6][7]. During the past years, researchers have improved the asphalt binder concerning performance-related properties, such as resistance to permanent deformation (rutting) and fatigue cracking [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Effect of Crumb Rubber on Properties of Asphalt Mix by Wet Process

Al-Soudany,

Mohammed,

Hussein

et al. 2023

E3S Web Conf.

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The increase in the number of vehicles during the past twenty years has dramatically increased the traffic density and axial loading. In addition to the construction failures and lack of periodic maintenance, rapid deterioration of the road condition happens. So, it was necessary to find solutions to these problems that have been growing for years. One of these solutions is to improve the asphalt mixture to resist excessive loads and weather fluctuations. This research aims to investigate the addition of crumb rubber derived from recycled tires; to the asphalt mixture for improving performance characteristics and to compare the improved and unimproved samples. It is worth mentioning that crumb rubber addition to the asphalt mixture is considered one of the smart solutions for sustainability that the world is heading towards today, considering that the crumb rubber comes from waste tires, which is difficult to eliminate and pollute the environment. Four different proportions of crumb rubber have been added in this research (6, 9, 12, and 15%); by weight of bitumen to (60-70) asphalt binder, with a particle size passing from sieve no.50 (0.3 mm). The aggregate gradation is designed according to the Marshall method with a (12.5 mm NMAS) wearing course to obtain the optimum asphalt content and to prepare laboratory samples to perform various laboratory tests. Marshall Stability and flow, indirect tensile strength (ITS), moisture susceptibility, and permanent deformation of asphaltic mixes with different contents of crumb rubber were investigated. The results of the tested samples were compared with the original samples. It is shown that the asphaltic mixes performance has been improved when adding a certain amount of crumb rubber. Marshall Stability is increased by 29.2% when adding 9% CR by the weight of bitumen. However, the addition of crumb rubber can increase the stiffness of the asphalt mixture resulting in a more rigid pavement structure that is less prone to moisture damage and rutting under traffic load.

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