Papers by Quang Mai Trieu
Công nghệ tái chế mặt đường bê tông nhựa ở Việt Nam Mai Triệu Quang -Công ty Cổ phần Tư vấn và ĐT... more Công nghệ tái chế mặt đường bê tông nhựa ở Việt Nam Mai Triệu Quang -Công ty Cổ phần Tư vấn và ĐTXD ECC Trang Abstract: The total length of road network in Vietnam is over 20,000 kilometers, in which the total length of National Highway is 17,000 kilometers. Every year in Vietnam, hundreds of kilometers of road need to be rehabilitated, that requires a huge quantity of road materials. The conventional road rehabilitation method in Vietnam is to remove and dispose old road materials. Old asphalt and base materials are not recycled, and they must be disposed of or stockpiled, increasing transportation costs and utilizing valuable landfill space. In some locales, old asphalt can no longer be landfilled. Environmental laws are becoming stricter, thus adding to the expense of mining new materials and landfilling old. Full-Depth Reclamation (FDR) is a full pavement rehabilitation process in which the pavement and a portion of the subbase material are uniformly crushed, pulverized and blended. This process rebuilds worn out asphalt pavements by recycling the existing roadway. The old asphalt and base materials are pulverized, mixed with additive such as Portland cement, foam bitumen or emulsion and water, and compacted to produce a strong, durable base for either an asphalt or concrete surface. This report presents the overall figures on pavement recycling in Vietnam, and provides some findings on the first large scale pavement recycling by using Full Depth Reclamation in 18 kilometers of National Highway No.5 from Ha Noi to Hai Phong, a heavy traffic highway in the North of Vietnam. This will contribute to accelerate the application of pavement recycling in road maintenance and rehabilitation projects in Vietnam.
Công nghệ tái chế mặt đường bê tông nhựa ở Việt Nam Mai Triệu Quang -Công ty Cổ phần Tư vấn và ĐT... more Công nghệ tái chế mặt đường bê tông nhựa ở Việt Nam Mai Triệu Quang -Công ty Cổ phần Tư vấn và ĐTXD ECC Trang Abstract: The total length of road network in Vietnam is over 20,000 kilometers, in which the total length of National Highway is 17,000 kilometers. Every year in Vietnam, hundreds of kilometers of road need to be rehabilitated, that requires a huge quantity of road materials. The conventional road rehabilitation method in Vietnam is to remove and dispose old road materials. Old asphalt and base materials are not recycled, and they must be disposed of or stockpiled, increasing transportation costs and utilizing valuable landfill space. In some locales, old asphalt can no longer be landfilled. Environmental laws are becoming stricter, thus adding to the expense of mining new materials and landfilling old. Full-Depth Reclamation (FDR) is a full pavement rehabilitation process in which the pavement and a portion of the subbase material are uniformly crushed, pulverized and blended. This process rebuilds worn out asphalt pavements by recycling the existing roadway. The old asphalt and base materials are pulverized, mixed with additive such as Portland cement, foam bitumen or emulsion and water, and compacted to produce a strong, durable base for either an asphalt or concrete surface. This report presents the overall figures on pavement recycling in Vietnam, and provides some findings on the first large scale pavement recycling by using Full Depth Reclamation in 18 kilometers of National Highway No.5 from Ha Noi to Hai Phong, a heavy traffic highway in the North of Vietnam. This will contribute to accelerate the application of pavement recycling in road maintenance and rehabilitation projects in Vietnam.
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Papers by Quang Mai Trieu