The Potential Waste Glass as Replacement of Aggregate in Pavement
Abstract
Due to the rapid development of our country, there has been a significant increase in highway construction aimed at improving travel efficiency. Consequently, the demand for coarse aggregates has surged alongside the expansion of highways and roads, resulting in a sharp rise in aggregate mining activities. However, this increase in mining operations can have detrimental environmental impacts, including landscape destruction, loss of agricultural and grazing lands, riverbank erosion, deforestation, habitat destruction, and pollution of air and noise. Glass is a unique material which is hardness, durability and ability to be completely recycled, but glass recycling in Malaysia is in its early stages. Less than 30% of new bottles are produced from recycled glass. In pavement applications, the replacement of aggregates with 10% and 30% waste glass has been investigated as part of controlled experiments. The study aims to assess the effectiveness of waste glass in achieving optimal pavement stability and flow characteristics. Adjustments in bitumen content have been made based on Marshall Testing to determine the optimal point for stability and flow.
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