Suitability of Saw Dust Ash and Quarry Dust as Mineral fillers in Asphalt Concrete

Oba, Kenneth Miebaka; LongJohn, Tamunoemi Alu; Ijeje, Kaniyeh Anthony

doi:10.31033/ijemr.12.2.4

Cited by 5 publications

(2 citation statements)

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“…In each case, a genuine decline was documented. Oba et al 28) studied how a standard mineral filler and a non-conventional mineral filler may be used to replace fractions of aggregates in asphalt concrete to save money and promote waste material reuse. Replacement aggregates of 3 % Quarry Dust and 3 % Saw Dust Ash was used to creating asphalt concrete mix proportions.…”

Section: Fig 3: Study Area Mapmentioning

confidence: 99%

Finding Alternative to River Sand in Building Construction

Singh¹,

Singh²,

Kumar³

et al. 2022

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Due to the increasing expansion of infrastructure, there is a very high worldwide demand for river sand in the modern era. India's annual demand for river sand is 60 million metric tons. In metropolitan cities, the need for river sand is about 1 kilogram per person per day. The rapid extraction of river sand is producing detrimental effects on the environment. The main objective of the research is to determine the impact of rapid sand mining on river bank erosion and accretion and to find substitute materials for river sand. The River bank variations were measured for 1990-2000, 2000-2010, 2010-2020, and 1990-2020, and the corresponding erosion and accretion maps were created. These materials (copper slag, quarry dust, foundry sand, and sawdust) are used as an alternative to river sand to produce concrete mix. These alternatives substituted river sand from 10% to 60% in the mix proportion of M25 grade concrete to obtain the optimum compressive strength. These alternatives were also subjected to physical testing to determine their similarities to river sand. A Scanning Electron Microscope was used to analyze the hardened concrete's microstructure. The hardened concrete (River sand Substituted) is also analyzed to determine the changes in the internal structure of the concrete after 14 and 28 days.

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Section: Fig 3: Study Area Mapmentioning

confidence: 99%

Finding Alternative to River Sand in Building Construction

Singh¹,

Singh²,

Kumar³

et al. 2022

Evergreen

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“…These modifiers can enhance specific properties of the binder and mixture of the modified asphalt. Several studies have also explored different modifiers in asphalts, including industrial waste [5], agricultural waste [6], polymer-modified [7], waste cooking oil [8], and mineral fillers [9][10].…”

Section: Introductionmentioning

confidence: 99%

The Performance of a Hybrid Asphalt Mixture in Modifying Hot Mix Asphalt Properties

Sani,

Jaya,

Masri

et al. 2024

Preprint

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Waste materials in asphalt mixtures have garnered significant interest due to environmental concerns and the necessity for sustainable infrastructure. This study evaluated the performance of a waste material-based hybrid asphalt mixture, including palm oil fuel ash (POFA), garnet waste, and sawdust. Numerous physical tests were conducted to examine the hybrid asphalt mixture characteristics, such as penetration, softening point, and viscosity assessments. A Marshall stability and Dynamic Shear Rheometer (DSR) was also performed to assess the stability and rheological characteristic of the mixture. Consequently, the hybrid asphalt mixture demonstrated favourable outcomes in improving the hot mix asphalt characteristics. These findings suggested that the hybrid contents (0% as control, 3%, 6%, and 9%) produced a significant performance impact on the hybrid asphalt mixture. The 6% hybrid asphalt mixture yielded the highest stability, delivering a Marshall stability value of 22.33 kN and suitable ageing resistance of asphalt samples due to the high sensitivity of the binder to the test temperature. Furthermore, the scanning electron microscopy (SEM) and atomic force microscopy (AFM) studies reported strong adhesion and interaction between the particles in the 6% hybrid asphalt mixture. This study effectively demonstrated that the waste materials (POFA, garnet waste, and sawdust) in the hybrid asphalt mixtures developed enhanced physical and mechanical characteristics. The results also indicated that the hybrid asphalt mixtures exhibited potential durability and performance in improving the longevity and efficacy of hot mix asphalts. Therefore, this study provided evidence of effective and sustainable construction practices in asphalt pavements. Further research on waste components in asphalt mixtures should also be investigated to enhance their overall efficacy.

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