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Mumbai: MTHL to utilise innovative SMA technology for long-lasting roads
Updated On: 16 July, 2023 07:49 AM IST | Mumbai | Ranjeet Jadhav
Stone matrix asphalt (SMA) will ensure durability, pothole-free roads on India’s longest sea bridge
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Under construction MTHL connecting Mumbai with Navi Mumbai. File pic
As the completion of the Mumbai Trans Harbor Link (MTHL)—India’s longest sea bridge connecting Sewri with Nhava Sheva— draws near, the Stone Matrix Asphalt (SMA) technology will be utilised for construction. This technology offers the advantage of high durability, eliminating the issue of potholes. According to MMRDA officials, the MTHL road will surpass the quality of the iconic Bandra Worli Sea Link’s road. SMA is a type of asphalt pavement mixture that incorporates a high percentage of crushed, durable stone aggregates and a specialised asphalt binder. Compared to conventional surface courses, SMA roads provide several benefits.
Regarding road construction on the MTHL using SMA technology, a senior MMRDA official stated, “The use of SMA technology on the MTHL road will increase its lifespan. SMA is an asphalt mixture with a gap-graded aggregate mixture, consisting of high contents of coarse aggregate fractions, fillers, and binders. SMA has proven its superiority on heavily trafficked highways worldwide in recent years, leading to a 20 to 30 per cent increase in pavement life over conventional methods.”
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