A kind of asphalt mixture and preparation method thereof

A technology of asphalt mixture and mixture, which is applied in the fields of anti-hugging asphalt mixture and its preparation, and anti-rutting. It can solve the problems such as the viscosity of asphalt at 60°C is not up to standard, and achieve improved rutting dynamic stability, simple production process, and improved anti-rutting. Effects of rutting and anti-hugging properties

Active Publication Date: 2016-05-18
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem that the viscosity of road asphalt at 60°C is not up to standard and the problems of rutting and hugging on the asphalt pavement in the prior art, the present invention provides an asphalt mixture and its preparation method, which can improve the anti-rutting and anti-hugging performance of the asphalt mixture

Method used

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  • A kind of asphalt mixture and preparation method thereof
  • A kind of asphalt mixture and preparation method thereof

Examples

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Effect test

Embodiment 1

[0034] Weigh 99.8kg of vacuum residue (penetration of 1381 / 10mm) produced by Panjin Asphalt Plant as base asphalt, heat to 110°C; weigh 0.2kg of p-phenanthrenequinone. Set the stirring speed at 1400rpm, slowly add p-phenanthrenequinone to the asphalt, after all the p-phenanthrenequinones are added, stir for 40 minutes to obtain the special road petroleum asphalt used in the present invention. The properties of asphalt are shown in Table 1.

[0035] Pre-heat the special asphalt mixture mixing tank to 130°C constant temperature; prepare Liaoyang andesite aggregates into AC-10 aggregates with a total weight of 88kg, and heat them to 130°C for later use; weigh the above-mentioned special road petroleum asphalt 6.0 kg, heated to 110°C for later use; weigh 3.0kg each of cement and mineral powder. After the temperature of the stirring tank, aggregate and asphalt is constant, add the above-mentioned aggregate, cement and mineral powder together into the stirring tank, and stir for 2 ...

Embodiment 2

[0037] Weigh 97.7kg of blended asphalt (penetration of 1121 / 10mm) produced by Yingkou Asphalt Plant as the base asphalt, and heat it to 120°C; weigh 1.0kg of o-benzoquinone, 0.9kg of α-position anthraquinone, and 0.4kg of o-phenanthrenequinone , set the stirring speed at 1000rpm, and slowly add the above-mentioned quinone compounds into the asphalt, either separately or after mixing. After all the addition is completed, stir for 70 minutes to obtain the road petroleum pitch of the present invention. The properties of asphalt are shown in Table 1.

[0038]Pre-heat the special asphalt mixing tank to 150°C constant temperature; prepare Tieling basalt aggregates into AC-16 aggregates with a total weight of 94kg, and heat them to 150°C for later use; weigh the above-mentioned special road petroleum asphalt 4.0kg, heated to 120°C for later use; weigh 1.0kg each of cement and mineral powder. After the temperature of the stirring tank, aggregate and asphalt is constant, add the abov...

Embodiment 3

[0040] Weigh 98.5kg of straight-run asphalt (penetration of 961 / 10mm) produced by Qilu Petrochemical Company as base asphalt, heat to 130°C; weigh 0.5kg of α-(1,4) naphthoquinone and 1.0kg of β-position anthraquinone , set the stirring speed at 1100rpm, slowly add α-(1,4) naphthoquinone and β-position anthraquinone to the asphalt, the two can be added separately or after mixing. After all the addition is completed, stir for 60 minutes to obtain the road petroleum pitch of the present invention. The properties of asphalt are shown in Table 1.

[0041] Pre-heat the special asphalt mixture stirring tank to 160°C constant temperature; prepare the Fushun limestone aggregate into AC-13 aggregate with a total weight of 91kg, and heat it to 160°C for later use; weigh the above-mentioned special road petroleum asphalt 5.0 kg, heated to 130°C for later use; weigh 2.0kg each of cement and mineral powder. After the temperature of the stirring tank, aggregate and asphalt is constant, add...

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Abstract

The invention discloses an asphalt mixture and a preparation method thereof, and particularly relates to an anti-track and anti-upheaval asphalt mixture and a preparation method thereof. The asphalt mixture comprises the following components in percentage by weight: 4.0-6.0% of special road oil asphalt, 1.0-3.0% of cement, 1.0-3.0% of mineral powder and 88.0-94.0% of aggregates. The preparation method comprises the following steps: (1) a stirring kettle and the aggregates are heated to reach 130-180 DEG C for standby, and the special road oil asphalt is heated to a melted state for standby; (2) the aggregates, the cement and the mineral powder are added into the stirring kettle simultaneously and are uniformly stirred; (3) the special road oil asphalt is added into the stirring kettle and is uniformly stirred and mixed with the aggregated, the cement and the mineral powder which are uniformly mixed in the stirring kettle in advance to obtain the asphalt mixture. Due to the fact that the special road oil asphalt is used for the asphalt mixture, the track dynamic stability of the mixture is substantially improved, the anti-track performance of an asphalt road surface can be obviously improved, and the asphalt mixture is particularly suitable for asphalt roads with heavy traffic load and asphalt roads where tracks are likely to occur in high-temperature areas of the southern area of China.

Description

technical field [0001] The invention relates to an asphalt mixture and a preparation method thereof, in particular to an anti-rutting and anti-hugging asphalt mixture and a preparation method thereof. Background technique [0002] Due to the large-scale and overloading of transport vehicles, the phenomenon of rutting and hugging on the asphalt pavement is becoming more and more serious; from the perspective of the cement itself, the low viscosity of asphalt at 60°C is also one of the reasons for this damage. The 60°C viscosity of asphalt, as one of the indicators to characterize the high-temperature stability of asphalt, can well simulate the anti-flow performance of asphalt pavement when the road surface temperature reaches 60°C in summer. In the "Technical Specifications for Road Asphalt Pavement Construction" promulgated by the Ministry of Communications, the "Technical Requirements for Road Petroleum Asphalt" officially listed the 60°C dynamic viscosity of road asphalt a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B24/36
Inventor 陈保莲李志军宁爱民范思远张静陈闯程国香
Owner CHINA PETROLEUM & CHEM CORP
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