Application of Cold-mixed Cold-paved Emulsified Asphalt Mixture in Road Engineering
The cold-mixed cold-paved emulsified asphalt mixture is used of modified emulsified asphalt as the binder.The mixing and paving constructions are not to heat,and have the advantages of saving energy and protecting environment,reducing exhaust emissions and environmental pollution,and reducing construction costs.But there is little practical engineering case.By using the"cold-mixed cold-paved special modified emulsified asphalt"developed by PetroChina as the binder and selecting the dense graded AC 13,the optimal water consumption,the optimal asphalt-aggregate ratio and the maximum operable time of asphalt mixture are determined through the laboratory tests,and are applied on the underside of municipal road.The result shows that the cold-mixed cold-paved AC mixture has the good pavement performances.And its production and construction are convenient.Compared with the traditional asphalt mixture construction,there is no need to add the additional large equipment,and the construction cost can be reduced by about 7％,which has a certain market promotion prospect.
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