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Method for producing wet-mixing, skid-resistance and noise-reduction asphalt road surface material

An asphalt pavement, warm mix technology, applied in the field of material science and engineering, can solve the problems of slow heat dissipation of asphalt mixture, high temperature heat stroke of construction personnel, and unfavorable construction of construction personnel, so as to improve the anti-skid ability, change the acoustic impedance, reduce the pump The effect of the Pu effect

Active Publication Date: 2009-06-03
WUHAN MUNICIPAL CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, to pave this kind of asphalt pavement, it must be paved at a higher temperature, which consumes a lot of energy, and the construction site is filled with smoke, which is not conducive to the construction of construction personnel.
Especially for construction in semi-enclosed places, asphalt mixture dissipates heat very slowly, and the ambient temperature is too high, resulting in construction safety accidents such as high-temperature flameout of paver, high-temperature heatstroke of construction workers, and exhaust gas poisoning.
At present, no method has been invented at home and abroad to prepare asphalt pavement materials with noise reduction and anti-skid functions at relatively low temperatures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A preparation method for a warm-mixed anti-skid and noise-reducing asphalt pavement material, comprising the steps of:

[0051] 1), the preparation of modified asphalt:

[0052] Modified asphalt is composed of base asphalt, A-type modifier, B-type modifier, stabilizer, and antioxidant. The mass ratio of each component is: base asphalt: A-type modifier: B-type modifier: Stabilizer: Antioxidant=100:2.4:4.1:0.18:0.18; first, base asphalt is heated to 160°C, add A-type modifier and B-type modifier, stir for 10min, start high-speed shearing machine, rotating speed 5000 RPM / min, cut at 180°C for 20 minutes, add stabilizer and antioxidant, continue to cut for 15 minutes, and then stand for 50 minutes to obtain modified asphalt;

[0053]Described matrix asphalt is AH-70 heavy traffic asphalt (also heavy traffic road asphalt);

[0054] Described A type modifier is SBS modifier (styrene-butadiene-styrene block copolymer) (or claims SBS bitumen modifier); B type modifier is acti...

Embodiment 2

[0067] A preparation method for a warm-mixed anti-skid and noise-reducing asphalt pavement material, comprising the steps of:

[0068] 1), the preparation of modified asphalt:

[0069] Modified asphalt is composed of base asphalt, A-type modifier, B-type modifier, stabilizer, and antioxidant. The mass ratio of each component is: base asphalt: A-type modifier: B-type modifier: Stabilizer: Antioxidant = 100:5.3:6.30:0.27:0.18; first, base asphalt is heated to 160°C, add A-type modifier and B-type modifier, stir for 10min, start high-speed shearing machine, rotating speed 5000 RPM / min, cut at 180°C for 20 minutes, add stabilizer and antioxidant, continue to cut for 15 minutes, and then stand for 50 minutes to obtain modified asphalt;

[0070] Described base asphalt is AH-90 heavy traffic asphalt (also heavy traffic road asphalt);

[0071] Described A type modifier is styrene-butadiene-styrene block copolymer (SBS modifier); B type modifier is activated rubber powder (SBR asphal...

Embodiment 3

[0084] A preparation method for a warm-mixed anti-skid and noise-reducing asphalt pavement material, comprising the steps of:

[0085] 1), the preparation of modified asphalt:

[0086] Modified asphalt is composed of base asphalt, A-type modifier, B-type modifier, stabilizer, and antioxidant. The mass ratio of each component is: base asphalt: A-type modifier: B-type modifier: Stabilizer: Antioxidant=100:4.3:7.3:0.27:0.16; first, base asphalt is heated to 160°C, add A-type modifier and B-type modifier, stir for 10min, start high-speed shearing machine, rotating speed 5000 RPM / min, cut at 180°C for 20 minutes, add stabilizer and antioxidant, continue to cut for 15 minutes, and then stand for 50 minutes to obtain modified asphalt;

[0087] The base asphalt is AH-70 heavy traffic asphalt;

[0088] Described A class modifier is SBS modifier (styrene-butadiene-styrene block copolymer); B class modifier is activated rubber powder;

[0089] The stabilizer is aviation oil; the antio...

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Abstract

The invention relates to a method for producing an asphalt road surface material, in particular to a method for producing a wet-mixing, skid-resistance and noise-reduction asphalt road surface material. The invention is characterized in that the method comprises the following steps: 1) the production of modified asphalt: the modified asphalt consists of basic asphalt, modifying agent A, modifying agent B, stabilizing agent and antioxidant; and the mass ratio of the components is as follows: 100:2.0-6.5:1.6-9.4:0.18-0.45:0.1-0.6; 2) the production of wet-mixing asphalt: the wet-mixing asphalt consists of the modified asphalt, modifying agent C, sulfur and diatomite, and the mass ratio of the components is as follows: 100:1.5-6.0:1.0-10.0:1.0-8.5; 3) the selection of mineral aggregate graduation: the mineral aggregate consists of coarse aggregate, fine aggregate and stuffing, and the mass ratio of the components is as follows: 100:7.0-14.0:3.3-5.9; 4) the production of wet-mixing, skid-resistance and noise-reduction asphalt road surface material: the material consists of the mineral aggregate, wet-mixing modified asphalt and fiber, and the mass ratio of the components is as follows: 100:4.5-5.0:0.225-0.533. The asphalt road material produced by the method has lower construction temperature and has the functions of reducing noise and resisting skid.

Description

technical field [0001] The invention belongs to the field of material science and engineering, and in particular relates to a preparation method of an asphalt pavement material. technical background [0002] Asphalt concrete pavement is smooth and seamless, and it is comfortable to drive. It has become the main form of road paving at home and abroad. With the rapid development of the national economy and the continuous improvement of living standards, people have higher and higher functional requirements for roads. It is not only required to drive safely and comfortably, but also to make the road surface have anti-slip, noise reduction and other functions, and at the same time have the characteristics of environmental protection and energy saving. The dense asphalt concrete widely used at present has small pavement texture, poor skid resistance, and high driving noise; at the same time, hot-mix asphalt mixture is basically used in road engineering at the present stage for p...

Claims

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Application Information

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IPC IPC(8): C04B26/26
CPCY02A30/30
Inventor 胡曙光丁庆军沈凡黄绍龙谢先启陈跃庆邓利明黄小霞王发洲叶家军
Owner WUHAN MUNICIPAL CONSTR GROUP
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