Asphalt mixture and production method thereof

A kind of technology of asphalt mixture and production process, which is applied in the direction of building insulation materials, building components, buildings, etc., can solve the problem of affecting the safety of pavement operation, service life and economic benefits, affecting the high temperature stability and crack resistance of pavement, pavement Use performance damage and destruction to achieve the ability to strengthen the moisture stripping effect, reduce the probability of cracking of the road surface, and increase the effect of anti-rutting performance

Active Publication Date: 2019-01-11
厦门市政沥青工程有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the service period of the airport pavement, it is subject to repeated comprehensive effects of aircraft load and climate environment, and the performance of the pavement will be damaged and destroyed, which will affect the operational safety, service life and economic benefits of the pavement.
A large number of researches and investigations at home and abroad have shown that wheel rutting and cracking are the main types of damage to airport asphalt pavement, and in long-term harsh use environments, asphalt pavement is easily affected by climate and aging, which affects the high temperature stability and crack resistance of the pavement sex

Method used

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  • Asphalt mixture and production method thereof
  • Asphalt mixture and production method thereof
  • Asphalt mixture and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Modified asphalt was prepared as follows:

[0033] Weigh 10.4kg of base asphalt and 0.6kg of SBS, heat the base asphalt to 182°C, then slowly add the weighed SBS into the base asphalt, and stir at 180°C for 42min to obtain modified asphalt.

[0034] A production process of asphalt mixture, comprising the steps of:

[0035] Step 1: Weigh 21kg of the first aggregate, 28kg of the second aggregate, 20kg of the third aggregate and 8kg of the fourth aggregate, and weigh the first aggregate, the second aggregate, the third aggregate and the fourth aggregate at 175°C Four aggregates are heated, and the heated first aggregate, second aggregate, third aggregate, fourth aggregate and 0.5kg polyester fiber are evenly mixed, and dry mixed for 8s to obtain the first mixture;

[0036] Step 2: Weigh 12kg of modified asphalt, heat the modified asphalt at 170°C, add the heated modified asphalt and 0.5kg of anti-rutting agent into the first mixture in step 1, and mix for 60s to obtain t...

Embodiment 2

[0040] Modified asphalt was prepared as follows:

[0041] Weigh 4.71kg of base asphalt and 0.29kg of SBS, heat the base asphalt to 183°C, then slowly add the weighed SBS into the base asphalt, and stir at 188°C for 43min to obtain modified asphalt.

[0042] A production process of asphalt mixture, comprising the steps of:

[0043] Step 1: Weigh 22.5kg of the first aggregate, 25kg of the second aggregate, 20.5kg of the third aggregate and 11kg of the fourth aggregate, and weigh the first aggregate, the second aggregate, and the third aggregate at 177°C Heating with the fourth aggregate, and uniformly mixing the heated first aggregate, second aggregate, third aggregate, fourth aggregate and 3kg polyester fiber, and dry mixing for 9s to obtain the first mixture;

[0044] Step 2: Weigh 6kg of modified asphalt, heat the modified asphalt at 172°C, add the heated modified asphalt and 3kg of anti-rutting agent into the first mixture in step 1, and mix for 62s to obtain the first mixt...

Embodiment 3

[0048] Modified asphalt was prepared as follows:

[0049] Weigh 9.43kg of base asphalt and 0.57kg of SBS, heat the base asphalt to 184°C, then slowly add the weighed SBS into the base asphalt, and stir at 182°C for 44min to obtain modified asphalt.

[0050] A production process of asphalt mixture, comprising the steps of:

[0051] Step 1: Weigh 23kg of the first aggregate, 26kg of the second aggregate, 22kg of the third aggregate and 7kg of the fourth aggregate, and weigh the first aggregate, the second aggregate, the third aggregate and the fourth aggregate at 179°C Four aggregates are heated, and the heated first aggregate, second aggregate, third aggregate, fourth aggregate and 2kg polyester fiber are mixed evenly, and dry mixed for 10s to obtain the first mixture;

[0052] Step 2: Weigh 10kg of modified asphalt, heat the modified asphalt at 174°C, add the heated modified asphalt and 3kg of anti-rutting agent into the first mixture in step 1, and mix for 70s to obtain the ...

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Abstract

The invention discloses an asphalt mixture and a production method thereof and relates to the field of building materials. The asphalt mixture solves the problem that the existing asphalt mixture forthe airport runway has poor stability and anti-rutting ability, and comprises 4 to 12 wt% of modified asphalt, 72 to 88 wt% of aggregate, 5 to 10 wt% of a filler, 0.5 to 3 wt% of a fiber stabilizer and 0.5 to 3 wt% of an anti-rutting agent and has an asphalt-aggregate ratio of 5.6 to 14%. The modified asphalt comprises matrix asphalt and SBS and the weight of the SBS is 5-8 wt% that of the matrixasphalt. The asphalt mixture has the advantages of high dynamic stability, high temperature stability, strong rutting resistance and good water stability, and is suitable for airport runways.

Description

technical field [0001] The invention relates to the field of building materials, in particular to an asphalt mixture and a production process thereof. Background technique [0002] Airport pavement is one of the most important infrastructures of an airport, providing a place for aircraft to take off, land, roll, prepare before flight and maintain after flight. As the asphalt concrete pavement has the advantages of being smooth and skid-resistant, comfortable and stable driving, high degree of mechanized construction, and non-stop construction, etc., it has become the main pavement type for new construction and reconstruction of airport pavements at home and abroad. Compared with expressway pavement, airport pavement has a greater traffic load level and tire ground pressure, which will produce much greater stress and strain than highway pavement, and has greater requirements for the overall performance of the pavement. [0003] During the service period of the airport paveme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B28/00C08L95/00C08L53/02
CPCC04B26/26C04B28/00C04B2201/50C08L95/00C04B16/0683C04B14/02C04B14/14C04B18/08C04B18/26C04B16/0633C04B24/36C08L53/02
Inventor 陈有雄姚锋彭耀林
Owner 厦门市政沥青工程有限公司
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