A kind of room temperature asphalt concrete and preparation method thereof
A room temperature asphalt and concrete technology, applied in the field of water conservancy and hydropower engineering, can solve the problems of large porosity and poor impermeability of asphalt concrete at room temperature, and achieve the effects of strong adaptability to deformation, good impermeability and high mechanical strength.
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Embodiment 1
[0049] The aggregate and mineral powder are both made of granite, and the mass percentage of the mineral aggregate is: 8% for the aggregate with a particle size d (mm) range of 16≥d>9.5, 20% for the aggregate with 9.5≥d>4.75, 4.75 The aggregate of ≥d>2.36 is 26%, the aggregate of 2.36≥d>0.075 is 40%, the cement and granite mineral powder filler of d≤0.075 each account for 3.0%; the oil-stone ratio is 6.7%. Pour the screened aggregate into the mixing container and heat it to 150°C and stir evenly. Pour the room temperature asphalt produced by the mixing type room temperature asphalt liquefaction agent into the mixing container and stir evenly. Pour the filler composed of cement and granite mineral powder into the mixing container. The container is stirred evenly, and the asphalt mixture is continuously heated until the moisture in the room temperature asphalt is discharged, thereby preparing the room temperature asphalt concrete of the present invention.
Embodiment 2
[0051] Both aggregate and mineral powder are made of limestone, and the mass percentage of mineral aggregate is: 13% for aggregate with particle size d (mm) in the range of 16≥d>9.5, 16% for aggregate with 9.5≥d>4.75, The aggregate of 4.75≥d>2.36 is 25%, the aggregate of 2.36≥d>0.075 is 40%, the cement and limestone mineral powder filler of d≤0.075 each account for 3.0%; the oil-stone ratio is 6.6%. Pour the screened aggregate into the mixing container and heat it to 150°C and stir evenly. Pour the room temperature asphalt produced by mixing type room temperature asphalt liquefaction agent into the mixing container and stir evenly. Pour the filler composed of cement and limestone mineral powder into the mixing container. Stir the container and stir evenly, continue to heat the asphalt mixture until the moisture in the room temperature asphalt is discharged, so as to prepare the room temperature asphalt concrete of the present invention.
Embodiment 3
[0053] Both aggregate and mineral powder are made of limestone, and the mass percentage of mineral aggregate is: 12% for aggregate with particle size d (mm) in the range of 16≥d>9.5, 17% for aggregate with 9.5≥d>4.75, The aggregate of 4.75≥d>2.36 is 25%, the aggregate of 2.36≥d>0.075 is 40%, the cement and limestone mineral powder filler of d≤0.075 each account for 3.0%; the oil-stone ratio is 6.6%. Pour the screened aggregate into the mixing container and heat it to 150°C and stir evenly. Pour the room temperature asphalt produced by mixing type room temperature asphalt liquefaction agent into the mixing container and stir evenly. Pour the filler composed of cement and limestone mineral powder into the mixing container. Stir the container and stir evenly, continue to heat the asphalt mixture until the moisture in the room temperature asphalt is discharged, so as to prepare the room temperature asphalt concrete of the present invention.
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