Performance of asphaltic concrete modified with recycled crushed bricks
The pavement industry relies greatly on this conventional material in constructing the road. However, the shortage of the mined material has led to the need of finding alternative with local materials to partially substitute the asphalt components. The conventional pavement industry also contr...
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Main Authors: | , , , , |
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Format: | Conference or Workshop Item |
Language: | English English |
Published: |
IOP Publishing
2021
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Subjects: | |
Online Access: | http://irep.iium.edu.my/89102/7/89102_Performance%20of%20asphaltic%20concrete%20modified%20with%20recycled%20crushed%20bricks.pdf http://irep.iium.edu.my/89102/8/89102_Performance%20of%20asphaltic%20concrete%20modified%20with%20recycled_SCOPUS.pdf http://irep.iium.edu.my/89102/ https://iopscience.iop.org/article/10.1088/1755-1315/682/1/012061/pdf |
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Summary: | The pavement industry relies greatly on this conventional material in constructing
the road. However, the shortage of the mined material has led to the need of finding alternative
with local materials to partially substitute the asphalt components. The conventional pavement
industry also contributed to thermal and greenhouse emission resulting from the mining
activities. In addition, throughout the year, the amount of construction and demolition (C&D)
waste generated from civil construction activities particularly in Malaysia is increasing in
alarming rate. Recycling the C&D waste specifically in bricks is viewed as reasonable
potential as aggregate modifier in the impulse for greener and sustainable asphalt pavement
production. In this paper, recycled crushed bricks (RCB) is introduced to bituminous wearing
course as partial replacement for coarse aggregates. The coarse aggregate is partially replaced
with RCB in proportions of 0%, 10%, 20%, 30% and 40% by weight. This study summarizes
the results of laboratory evaluation of Los Angeles Abrasion Value, Aggregate Crushing Value
and Marshall Test. Results show that asphaltic concrete modified with 10% RCB has the
lowest abrasion and crushing values which were 20.2% and 30% respectively. Similarly, the
mix has the highest Marshall Stability and lowest flow which 15.61 kN and 3.37 mm
respectively. Thus, partial replacement of coarse aggregates with 10% RCB in bituminous mix
is suitable to be used in wearing course and can be used as alternative material in bituminous
mix to reduce the dependency on natural aggregates and utilize the C&D waste efficiently. |
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