Assessment of metal leaching from rediset-polymer modified asphalt binder on groundwater and soil contamination

Rahmad, Suzielah; Khahro, Shabir Hussain; Rosyidi, Sri Atmaja P.; Widyatmoko, Iswandaru; Memon, Nasrullah; Al-Sabaeei, Abdulnaser M.; Milad, Abdalrhman; Sutanto, Muslich Hartadi; Yusoff, Nur Izzi Md.

doi:10.1016/j.cscm.2022.e01108

Cited by 5 publications

(6 citation statements)

References 42 publications

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“…However, it was found that there had been no chemical reaction between PG76 and Rediset. It was also found that after 64 days submerged under water, Rediset-PG76 had no effect on the adjacent water source and soil [ 8 ] summarises the different additives and technologies for WMA [ 21 , 31 , 58 , 84 , 85 ]. Even though the technologies differ, they all seek to reduce bitumen viscosity, enhance workability, reduce emissions, and maintain the desired performance.…”

Section: Components and Production Of Asphalt Mixturementioning

confidence: 99%

Section: Life Cycle Assessmentmentioning

confidence: 99%

“…Researchers have conducted experimental studies on the LCA of WMA [ 2 , 7 , 8 , 12 , 13 , 16 , 27 , 127 , 128 , 129 , 130 , 131 , 132 ]. Figure 5 shows the result of the LCA analysis of the environmental impact assessment of WMA [ 7 , 8 ]. The figure shows a 24%, 18%, 10%, and 3% reduction in the environmental impacts of air pollutants, fossil fuel depletion, smog formation, and global warming, indicating that, overall, WMA has 15% less environmental impact than HMA [ 2 ].…”

Section: Life Cycle Assessmentmentioning

confidence: 99%

“…Moreover, theoretical estimates show that lowering the temperature by 28 °C results in an 11% savings on petroleum fuel [ 142 ]. According to Hassan [ 8 ], compared to HMA, WMA uses 18% less fossil fuel. However, the cost of warm mix additives increases the cost of producing WMA.…”

Section: Energy Consumption and Economic Benefitsmentioning

confidence: 99%

“…One of the biggest problems faced by the world is global warming [ 6 ]. The high pace of transportation contributes to the emissions of large amounts of greenhouse gases that cause global warming [ 2 , 7 , 8 , 9 ]. According to the Inventory of U.S. Greenhouse Gas Emissions and Sinks, transportation contributes about 27% of total U.S. GHG emissions in 2020 [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

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A Comparative Review of Hot and Warm Mix Asphalt Technologies from Environmental and Economic Perspectives: Towards a Sustainable Asphalt Pavement

Milad

Babalghaith

Al-Sabaeei

et al. 2022

IJERPH

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The environmental concerns of global warming and energy consumption are among the most severe issues and challenges facing human beings worldwide. Due to the relatively higher predicted temperatures (150–180 °C), the latest research on pavement energy consumption and carbon dioxide (CO2) emission assessment mentioned contributing to higher environmental burdens such as air pollution and global warming. However, warm-mix asphalt (WMA) was introduced by pavement researchers and the road construction industry instead of hot-mix asphalt (HMA) to reduce these environmental problems. This study aims to provide a comparative overview of WMA and HMA from environmental and economic perspectives in order to highlight the challenges, motivations, and research gaps in using WMA technology compared to HMA. It was discovered that the lower production temperature of WMA could significantly reduce the emissions of gases and fumes and thus reduce global warming. The lower production temperature also provides a healthy work environment and reduces exposure to fumes. Replacing HMA with WMA can reduce production costs because of the 20–75% lower energy consumption in WMA production. It was also released that the reduction in energy consumption is dependent on the fuel type, energy source, material heat capacity, moisture content, and production temperature. Other benefits of using WMA are enhanced asphalt mixture workability and compaction because the additives in WMA reduce asphalt binder viscosity. It also allows for the incorporation of more waste materials, such as reclaimed asphalt pavement (RAP). However, future studies are recommended on the possibility of using renewable, environmentally friendly, and cost-effective materials such as biomaterials as an alternative to conventional WMA-additives for more sustainable and green asphalt pavements.

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