A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Energy Saving in Road Paving Industry
This investigation deals with factors affecting the energy consuption at an asphalt mixing plant, in aggregate production and in repaving by heating method. The investigation has been carried out by theoretical calculations, field tests and inquiries. The required energies in making asphalt mixtures and aggregates as well as at the different stages of repaving have been investigated by theoretical calculations. In this way the basis has been found for estimating the energy consumption. The possibility of saving energy in mixing the asphalt is 1.0-1.5 litres of fuel per ton of asphalt for the part of regulating and observing the plant. The savings are approximately the same if the moisture content of the aggregate can be reduced by 1-2 per cent units. The moisture content of aggregates can be influenced in production and in storage. A decrease of one per cent unit of moisture content by means of sheltering covers 5-6 times the costs caused by sheltering. Covering also diminished the problem of freezing. Savings in the repaving method are due to the smaller amount of mass used in comparison with the traditional asphalt pavement. The heating energy needed in repaving is equal to the energy of the tack-coating agent needed in laying a traditional asphalt pavement. Considering the above mentioned factors the energy consumption of a traditional asphalt pavement is 50-100% higher than that of repaving. Technically the repaving method is not always a practical solution. (ERA citation 10:023989)
Energy Saving in Road Paving Industry
This investigation deals with factors affecting the energy consuption at an asphalt mixing plant, in aggregate production and in repaving by heating method. The investigation has been carried out by theoretical calculations, field tests and inquiries. The required energies in making asphalt mixtures and aggregates as well as at the different stages of repaving have been investigated by theoretical calculations. In this way the basis has been found for estimating the energy consumption. The possibility of saving energy in mixing the asphalt is 1.0-1.5 litres of fuel per ton of asphalt for the part of regulating and observing the plant. The savings are approximately the same if the moisture content of the aggregate can be reduced by 1-2 per cent units. The moisture content of aggregates can be influenced in production and in storage. A decrease of one per cent unit of moisture content by means of sheltering covers 5-6 times the costs caused by sheltering. Covering also diminished the problem of freezing. Savings in the repaving method are due to the smaller amount of mass used in comparison with the traditional asphalt pavement. The heating energy needed in repaving is equal to the energy of the tack-coating agent needed in laying a traditional asphalt pavement. Considering the above mentioned factors the energy consumption of a traditional asphalt pavement is 50-100% higher than that of repaving. Technically the repaving method is not always a practical solution. (ERA citation 10:023989)
Energy Saving in Road Paving Industry
A. Lampinen (author) / J. Karhula (author) / M. Eerola (author) / R. Kurki (author)
1984
76 pages
Report
No indication
English
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