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A platform for research: civil engineering, architecture and urbanism
Self-healing asphalt concrete based on microwave heating and containing metal fibers and preparation method of self-healing asphalt concrete
The invention discloses self-healing asphalt concrete based on microwave heating and containing metal fibers. The self-healing asphalt concrete is prepared from raw materials in parts by weight as follows: 60-70 parts of coarse aggregate, 20-30 parts of fine aggregate, 4-6 parts of pulverized steel slag powder filler, 4-6 parts of asphalt and a conductive material accounting for 2%-5% of the volume of the asphalt. During preparation, steel wool fibers are added to the asphalt at the temperature of 160-170 DEG C and stirred uniformly, the mixture is stirred uniformly with the coarse aggregate and the fine aggregate which are heated to the temperature of 170-180 DEG C, then the pulverized steel slag powder filler is added and stirred uniformly, and a mixture is obtained; a Marshall compaction apparatus is used for compacting both sides of the mixture for 75 times respectively or a rotary compaction apparatus is used for compacting the mixture for 100 times, and the concrete is obtained. Compared with the prior art, the self-healing asphalt concrete based on microwave heating and containing the metal fibers has the advantages as follows: the formula is simple, the construction is convenient, the electrothermic performance and the pavement performance of an asphalt pavement are improved, especially the self-healing capacity of cracks is remarkably improved, ice and snow melting of the asphalt pavement in winter is facilitated, and the resource utilization rate of steel slag as solid waste is further increased.
Self-healing asphalt concrete based on microwave heating and containing metal fibers and preparation method of self-healing asphalt concrete
The invention discloses self-healing asphalt concrete based on microwave heating and containing metal fibers. The self-healing asphalt concrete is prepared from raw materials in parts by weight as follows: 60-70 parts of coarse aggregate, 20-30 parts of fine aggregate, 4-6 parts of pulverized steel slag powder filler, 4-6 parts of asphalt and a conductive material accounting for 2%-5% of the volume of the asphalt. During preparation, steel wool fibers are added to the asphalt at the temperature of 160-170 DEG C and stirred uniformly, the mixture is stirred uniformly with the coarse aggregate and the fine aggregate which are heated to the temperature of 170-180 DEG C, then the pulverized steel slag powder filler is added and stirred uniformly, and a mixture is obtained; a Marshall compaction apparatus is used for compacting both sides of the mixture for 75 times respectively or a rotary compaction apparatus is used for compacting the mixture for 100 times, and the concrete is obtained. Compared with the prior art, the self-healing asphalt concrete based on microwave heating and containing the metal fibers has the advantages as follows: the formula is simple, the construction is convenient, the electrothermic performance and the pavement performance of an asphalt pavement are improved, especially the self-healing capacity of cracks is remarkably improved, ice and snow melting of the asphalt pavement in winter is facilitated, and the resource utilization rate of steel slag as solid waste is further increased.
Self-healing asphalt concrete based on microwave heating and containing metal fibers and preparation method of self-healing asphalt concrete
XIONG RUI (author) / CHEN HUAXIN (author) / SHENG YANPING (author) / GUAN BOWEN (author) / CHANG MINGFENG (author) / YANG XIAOKAI (author) / YANG FA (author) / XIONG XIN (author) / WANG LU (author)
2015-12-16
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Self-healing asphalt concrete under microwave action and preparation method thereof
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