Method for testing property of low-carbon asphalt and low-carbon asphalt mixtures

Abstract

The invention belongs to the field of highways and city roads, in particular to a method for testing the property of low-carbon asphalt and low-carbon asphalt mixtures. The method comprises the following steps of: respectively calculating bulk density of a compact-molded Marshall sample at different temperatures, and using mixture and compaction temperature of the low-carbon asphalt and low-carbon asphalt mixtures at the maximum bulk density as mixture and compression temperature of the low-carbon asphalt mixtures; testing the aging property of the low-carbon asphalt and low-carbon asphalt mixtures, which comprises the following steps of: preparing asphalt samples according to the regulations, and testing the natures of the asphalt samples including needle penetration, viscosity, softening points, ductility and the like before a test of heating a film; adjusting a baking oven to be horizontal so that a rotary disc can rotate on a horizontal plane at a certain speed, enabling a position of a thermometer to be equal to the distance of the centre and the edge of the rotary disc, placing a sample-accommodating utensil on the rotary disc in the baking oven when the temperature in the baking oven reaches 120DEG C, timing when the temperature in the baking oven rises again to 120 DEG C and keeping the temperature; and testing the natures of the asphalt samples including needle penetration, viscosity, softening points, ductility and the like after the aging is completed. Through basic detection of two properties, the method can more objectively evaluate the basic property of the low-carbon asphalt and low-carbon asphalt mixtures and can ensure that the property of the designed low-carbon asphalt concrete can meet the requirement of national current specifications.

Description

technical field [0001] The invention belongs to the field of highways and urban roads, and in particular relates to a method for measuring the properties of low-carbon asphalt and low-carbon asphalt mixture. Background technique [0002] Low-carbon economy is an economic model based on low energy consumption, low pollution, and low emissions. It is another major progress of human society after agricultural civilization and industrial civilization. The core of low-carbon economy is to bring about a fundamental change in the concept of human survival and development through energy technology and emission reduction technology innovation, industrial structure and system innovation. [0003] The background of the "low-carbon economy" is the severe challenge of global warming to human survival and development. With the continuous growth of the global population and economic scale, the environmental problems brought about by energy use are constantly recognized by people, not only...

AI Technical Summary

Problems solved by technology

If this method is used to measure the viscosity of low-carbon asphalt, there will be cases where the mixing and compaction temperature of low-carbon asphalt that cannot be measured or obtained is too high, and the high mixing and compacting temperature will cause the aging of low-carbon asphalt, environmental and Production safety and other issues

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