Effect of asphalt pavement construction on the environment of Ethiopia

Rath, Badrinarayan

doi:10.17515/resm2022.352ma1010

Cited by 2 publications

(1 citation statement)

References 35 publications

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“…The use of sand in civil engineering is not new; however, the sand has been used for a long time in the execution of backfill work for foundations and road works, especially in the formulation of asphalt mixes, as well as in the formulation of concrete for building and bridge construction. Many studies in civil engineering (AHLRICH, 1991;ALBAYATI;ABDULSATTAR, 2020;FATHI MADWI, 2020;HARITONOVS et al, 2012;NGUYEN, 2021;NIAZI;MOHAMMADI, 2003;RAJENDRAN;CHRISTOPHER;MUTHU, 2022;RATH, 2022;TACIROĞLU et al, 2022;TOPAL;SENGOZ, 2005;VAIDYA et al, 2022) have focused on the usage of sand, whether in terms of sand type, composition, granular distribution, or others. In this study, dune and river sands, two forms of natural sand, are used to examine the performance of an asphalt mix structure.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation and evaluation of the compactness and moisture damage of asphalt mixes incorporating dune and river sand

Younsi,

Bensaada,

Allout

et al. 2024

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Road construction is mainly based on the use of raw materials that must be in compliance with the standards, thus ensuring the quality and durability of the road. The use of dune sand and river sand in road geotechnics is an interesting subject. Both types of sand can be used in road construction and maintenance for a variety of applications. Dune sand is often appreciated for its uniform grain size and drainage capacity, while river sand can offer good mechanical strength. The majority of common bituminous mixes contain fillers made of quarry sand, whose amounts are difficult to regulate because of the variety of rock deposits and the conditions under which they are manufactured. In this paper, the compactness and moisture damage of asphalt mixes with two sand types, River sand (RS) with (0/4) size was sourced from the valley in the province of Medea (Algeria) and Dune Sand (DS) with a particle size of (0/0.5) was obtained from a dune in the Algerian province of Djelfa, were examined. Furthermore, a 100% replacement rate by weight of Crushed Sand (CS) with (0/3) mm size was used (quarry sand). The investigation employed a comprehensive approach, utilizing Marshall and gyratory shear compaction tests to assess compactness, while moisture damage was evaluated through rigorous water resistance testing and compressive strength methodology. The results of the study reveal a notable disparity in the mechanical performance of asphalt mixtures containing dune and river sand, showcasing diminished compactness and heightened susceptibility to moisture-induced damage when compared to alternative mix formulations. These findings underscore the critical role of sand type selection in asphalt mix design, emphasizing the need for careful consideration to optimize performance and durability.

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