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The aim of the test is to determine the cohesion increase of a bituminous mixture in fixed temperature and hygrometry conditions, using a spreadability–meter.
This standard gives a method to measure the spreadability characteristics of asphalt which are able to vary with time. It may be used for the determination of the delay between manufacturing and laying. For emulsion-based asphalts and other cold mixtures (those mixed and laid at temperatures below 60 °C), the test method characterises the "pot-life" of the mixture, the time during which it is possible to spread it. This time depends on a number of parameters (including the type and rate of emulsion, the type of aggregate and the type of grading curve) and is important for a client to be able to fix this time (minimal pot-life). For other mixtures other than mastic asphalt, for which the test is not applicable, the test method is intended to be of assistance to the designer for mixture design rather than as a type test.
This European Standard applies to bituminous mixtures both those made up in laboratory and those resulting from work site sampling, with an upper aggregate size not larger than 31,5 mm.
Reģistrācijas numurs (WIID)
59835
Darbības sfēra
The aim of the test is to determine the cohesion increase of a bituminous mixture in fixed temperature and hygrometry conditions, using a spreadability–meter.
This standard gives a method to measure the spreadability characteristics of asphalt which are able to vary with time. It may be used for the determination of the delay between manufacturing and laying. For emulsion-based asphalts and other cold mixtures (those mixed and laid at temperatures below 60 °C), the test method characterises the "pot-life" of the mixture, the time during which it is possible to spread it. This time depends on a number of parameters (including the type and rate of emulsion, the type of aggregate and the type of grading curve) and is important for a client to be able to fix this time (minimal pot-life). For other mixtures other than mastic asphalt, for which the test is not applicable, the test method is intended to be of assistance to the designer for mixture design rather than as a type test.
This European Standard applies to bituminous mixtures both those made up in laboratory and those resulting from work site sampling, with an upper aggregate size not larger than 31,5 mm.
