The research considered urgent ecological reasons linked to environment such as worn tires, the waste tire rubber＇s powder was collected from the tire cars repair shops （passed from the sieve No 18 μm）, and used t...The research considered urgent ecological reasons linked to environment such as worn tires, the waste tire rubber＇s powder was collected from the tire cars repair shops （passed from the sieve No 18 μm）, and used to improve the asphalt concrete properties. Raw materials used were prepared and tested. Varies of asphalt concrete mixtures were prepared with different ratios of bitumen （5, 5.5, 6, 6.5, 7% % of concrete weight）. The Marshall mix design method was used to determine optimum conditions for bitumen in asphalt concrete with specific weight, stability and flow Test, the optimum amount of bitumen was 6.1% of whole asphalt concrete. The different percentages of waste tire rubber powder （0.0, 0.05, 0.10, 0.15% of bitumen weight） were added in optimum bitumen of asphalt concretes, then specific weight and Marshall test were evaluated. These asphalt-rubber mixtures were found to act quite differently from traditional, unmodified asphalt mixtures. However, these results indicate that improved pavement performance can be achieved with asphalt-rubber binder.展开更多
The industry-oriented-bilateral project ( "Environmental friendly strategy for Waste Management in India Utilising Cement and Concrete Production Technology" ) between India and Norway was established in 200...The industry-oriented-bilateral project ( "Environmental friendly strategy for Waste Management in India Utilising Cement and Concrete Production Technology" ) between India and Norway was established in 2009 and will continue to the end of 2011. It aims to further increase the utilisation of mineral wastes in Indian cement and concrete industry in an environmentally and scientifically sound way in order to ensure sustainable energy and resource management. The project intends to advance the state of the art regarding blended cement and concrete technology as well as provide practical solutions and guidelines. Emphasis are given to the synergies achieved by using ternary binder systems in concrete mixes as well as the use of appropriate admixtures in order to integrate certain waste materials at higher levels than today's practice. The prioritised materials are coal combustion residues,slag and C&D waste. The background,project concept and the current status are presented.展开更多
文摘The research considered urgent ecological reasons linked to environment such as worn tires, the waste tire rubber＇s powder was collected from the tire cars repair shops （passed from the sieve No 18 μm）, and used to improve the asphalt concrete properties. Raw materials used were prepared and tested. Varies of asphalt concrete mixtures were prepared with different ratios of bitumen （5, 5.5, 6, 6.5, 7% % of concrete weight）. The Marshall mix design method was used to determine optimum conditions for bitumen in asphalt concrete with specific weight, stability and flow Test, the optimum amount of bitumen was 6.1% of whole asphalt concrete. The different percentages of waste tire rubber powder （0.0, 0.05, 0.10, 0.15% of bitumen weight） were added in optimum bitumen of asphalt concretes, then specific weight and Marshall test were evaluated. These asphalt-rubber mixtures were found to act quite differently from traditional, unmodified asphalt mixtures. However, these results indicate that improved pavement performance can be achieved with asphalt-rubber binder.
基金The Research Council of Norway,The Royal Norwegian Embassy New Delhi,Borregaard Industries Ltd.and Elkem AS for providing financial support to the Indo-Norwegian Bilateral initiative:the BILAT-INDIA project.
文摘The industry-oriented-bilateral project ( "Environmental friendly strategy for Waste Management in India Utilising Cement and Concrete Production Technology" ) between India and Norway was established in 2009 and will continue to the end of 2011. It aims to further increase the utilisation of mineral wastes in Indian cement and concrete industry in an environmentally and scientifically sound way in order to ensure sustainable energy and resource management. The project intends to advance the state of the art regarding blended cement and concrete technology as well as provide practical solutions and guidelines. Emphasis are given to the synergies achieved by using ternary binder systems in concrete mixes as well as the use of appropriate admixtures in order to integrate certain waste materials at higher levels than today's practice. The prioritised materials are coal combustion residues,slag and C&D waste. The background,project concept and the current status are presented.
