Bituminous concrete

An asphalt concrete and asphalt technology, applied in the field of asphalt concrete, can solve the problems of the impact of the compressive strength of the asphalt pavement and the service life of the asphalt pavement, so as to reduce the phenomenon of efflorescence, enhance the anti-ultraviolet performance and waterproof performance, and reduce the maintenance cost. Effect

Inactive Publication Date: 2019-08-30
广州市建筑集团混凝土有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, since the asphalt pavement is generally set in an outdoor open-air environment, it will be exposed to sunlight and rainwater for a long time, so that the asphalt pavement is easily eroded by ultraviolet rays and rainwater, and the compressive strength of the asphalt pavement is easily affected. Even It is easy to affect the service life of asphalt pavement, so it is extremely important to improve the anti-ultraviolet performance and waterproof performance of asphalt concrete

Method used

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Examples

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Embodiment 1

[0063] A kind of asphalt concrete, comprising the following components in parts by mass:

[0064] 80kg of asphalt; 20kg of Portland cement; 7kg of water reducer; 25kg of water; 50kg of sand; 38kg of stone; 20kg of methyl o-hydroxybenzoate; 1kg of cellulose triacetate;

[0065] The preparation method of asphalt concrete is as follows:

[0066] S1. Add 80kg of asphalt into a 250L mixing tank and heat to 140°C;

[0067] S2. Increase the temperature to 150°C, add 20kg of Portland cement, 7kg of water reducer, 25kg of water, 50kg of sand, 38kg of stone, 20kg of methyl o-hydroxybenzoate, 1kg of cellulose triacetate, and 7kg of acrylic emulsion while stirring. , and stir evenly to obtain asphalt concrete.

Embodiment 2

[0069] A kind of asphalt concrete, comprising the following components in parts by mass:

[0070] 85kg of asphalt; 15kg of Portland cement; 8kg of water reducer; 28kg of water; 45kg of sand; 40kg of stone; 18kg of methyl o-hydroxybenzoate; 2kg of cellulose triacetate;

[0071] The preparation method of asphalt concrete is as follows:

[0072] S1. Add 85kg of asphalt to a 250L mixing tank and heat to 140°C;

[0073] S2. Increase the temperature to 150°C, add 15kg of Portland cement, 8kg of water reducer, 28kg of water, 45kg of sand, 40kg of stone, 18kg of methyl o-hydroxybenzoate, 2kg of cellulose triacetate, and 8kg of acrylic emulsion while stirring. , and stir evenly to obtain asphalt concrete.

Embodiment 3

[0075] A kind of asphalt concrete, comprising the following components in parts by mass:

[0076] Asphalt 90kg; Portland cement 18kg; water reducing agent 5kg; water 30kg; sand 48kg; stone 35kg; methyl o-hydroxybenzoate 15kg; triacetate cellulose 3kg; acrylic emulsion 5kg.

[0077] The preparation method of asphalt concrete is as follows:

[0078] S1. Add 90kg of asphalt into a 250L mixing tank and heat to 140°C;

[0079] S2. Increase the temperature to 150°C, add 18kg of Portland cement, 5kg of water reducer, 30kg of water, 48kg of sand, 35kg of stone, 15kg of methyl o-hydroxybenzoate, 3kg of cellulose triacetate, and 5kg of acrylic emulsion while stirring. , and stir evenly to obtain asphalt concrete.

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Abstract

The invention relates to the field of concrete, and provides bituminous concrete aiming at the problem that the compressive strength of bituminous concrete is easily affected by sunshine and rainwater. The bituminous concrete is prepared from the following components in parts by mass: 80-90 parts of bitumen, 15-20 parts of portland cement, 5-8 parts of a water reducing agent, 25-30 parts of water,45-50 parts of sand, 35-40 parts of stone, 15-20 parts of methyl salicylate, 1-3 parts of cellulose triacetate and 5-8 parts of an acrylic emulsion. Through synergetic coordination of the methyl salicylate, the cellulose triacetate and the acrylic emulsion, the formation of a layer of protective film on the surface of the bituminous concrete is facilitated, so that the anti-ultraviolet property and water resistance of the bituminous concrete are enhanced, and the service life of the bituminous concrete is prolonged.

Description

technical field [0001] The invention relates to the field of concrete, more specifically, it relates to an asphalt concrete. Background technique [0002] Asphalt concrete, commonly known as asphalt concrete, is artificially selected mineral materials with a certain gradation composition, such as crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials, under strict control conditions The mixture made by mixing, asphalt concrete is mainly used in road surface. [0003] However, since the asphalt pavement is generally set in an outdoor open-air environment, it will be exposed to sunlight and rainwater for a long time, so that the asphalt pavement is easily eroded by ultraviolet rays and rainwater, and the compressive strength of the asphalt pavement is easily affected. Even It is easy to affect the service life of asphalt pavement, so it is extremely important to improve the anti-ultraviolet performance an...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B24/36C04B2103/302C04B14/06C04B18/12C04B24/045C04B24/383C04B24/2641
Inventor 梁金成
Owner 广州市建筑集团混凝土有限公司
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