A kind of emulsified asphalt with fast setting and non-stick wheel sticky layer and its preparation method

A technology of emulsified asphalt and adhesive layer, which is applied to building components, building insulation materials, buildings, etc. It can solve the problems of low road durability, low construction efficiency, and slow demulsification speed, so as to achieve fast demulsification speed and improve construction efficiency , good emulsifiability

Active Publication Date: 2017-06-09
南京交科瑞路技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] One of the purposes of the present invention is to provide a fast-setting, non-sticky emulsified asphalt and its preparation method to solve the problems of low construction efficiency and sticky wheels caused by slow demulsification speed and slow forming in the construction of pavement structural layers. The problem of low pavement durability caused by

Method used

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  • A kind of emulsified asphalt with fast setting and non-stick wheel sticky layer and its preparation method
  • A kind of emulsified asphalt with fast setting and non-stick wheel sticky layer and its preparation method

Examples

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Effect test

Embodiment 1

[0031] The first is the preparation of intermediate materials. Select: No. 70 SK petroleum asphalt as the base asphalt; polyethylene with a weight-average molecular weight of 3000 as the interface enhancer; the asphalt emulsifier adopts the fast-cracking and fast-setting type, and in this example, aliphatic quaternary ammonium salt is used. Emulsifier, octadecyl trimethyl ammonium chloride; hydrogen chloride aqueous solution with a hydrochloric acid concentration of 36%; hydroxyethyl cellulose ether with a weight-average molecular weight of 50,000 is selected as a thickener. The above-mentioned materials and water are weighed according to the following weights:

[0032] No. 70 SK petroleum asphalt 50kg

[0033] Polyethylene with a weight average molecular weight of 3000 6kg

[0034] Octadecyltrimethylammonium chloride 0.3kg

[0035] Hydrogen chloride aqueous solution with a concentration of 36% 0.13kg

[0036] The weight average molecular weight is 50000 hydroxyethyl cellul...

Embodiment 2

[0043] The first is the preparation of the intermediate material. We select: No. 90 Sinopec asphalt as the base asphalt; polypropylene with a weight-average molecular weight of 2000 as the interface enhancer; the asphalt emulsifier is of fast-cracking and fast-setting type. In this example, aliphatic amines from MeadWestvac are selected. Salt emulsifier AA-63; hydrochloric acid concentration of 37% hydrogen chloride aqueous solution; weight-average molecular weight of 50000 hydroxyethyl cellulose ether as thickener. The above materials are weighed according to the following weights and the corresponding water is weighed:

[0044] No. 90 Sinopec asphalt as base asphalt 60kg

[0045] Polypropylene with a weight average molecular weight of 2000 10kg

[0046] Aliphatic amine salt emulsifier AA-63 3.0kg

[0047] Hydrogen chloride aqueous solution with a concentration of 37% 0.5kg

[0048] The weight average molecular weight is 50000 hydroxyethyl cellulose ether 0.10kg

[0049] ...

Embodiment 3

[0055] The first is the preparation of intermediate materials. Select: No. 70 SK petroleum asphalt as the base asphalt; polyethylene with a weight-average molecular weight of 4000 and polypropylene with a weight-average molecular weight of 2000 are used as interface enhancers; the asphalt emulsifier is fast-cracking and fast-setting , the present embodiment selects the composite emulsifier that the aliphatic amine salt asphalt emulsifier EM44 of Akzo Nobel Company and octadecyltrimethylammonium chloride compound are formed; Hydrochloric acid concentration is 37% hydrogen chloride aqueous solution; Select weight-average molecular weight as 70000 hydroxyethyl cellulose ether as a thickener. The above-mentioned materials are weighed according to the following weights and corresponding water is weighed:

[0056] No. 70 SK petroleum asphalt 40kg

[0057] Polyethylene with a weight average molecular weight of 5000 0.25kg

[0058] Polypropylene with a weight average molecular weigh...

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Abstract

The invention relates to a fast-setting, non-sticky emulsified asphalt and a preparation method thereof. The emulsified asphalt comprises the following components accounting for its total mass percentage: 40%-60% matrix asphalt, 0.5-10% interface reinforcement agent, 0.1% to 3% asphalt emulsifier, 0 to 3% hydrochloric acid, 0 to 0.1% thickener, and the rest is water. The preparation method includes: firstly, two intermediate materials of reinforced modified asphalt and soap liquid are prepared, followed by high-speed grinding of the intermediate materials to form unstabilized emulsified asphalt; finally, constant temperature stirring is carried out on unstabilized emulsified asphalt to obtain a sticky layer emulsified asphalt. The beneficial effect of the present invention is that the demulsification speed is fast and the forming is fast, thereby greatly improving the construction efficiency; it has the characteristics of non-stick wheels, which avoids the damage of construction equipment and transportation vehicles to the adhesive layer materials, and improves the bonding efficiency and bonding efficiency. Strength, thereby improving the durability of the pavement; asphalt has good high-temperature performance; at the same time, the process is simple and practical, which is conducive to popularization and application.

Description

technical field [0001] The invention relates to the field of road materials, in particular to a fast-setting, non-stick wheel adhesive layer emulsified asphalt used for bonding layers between structural layers in new or maintained road surfaces and a preparation method thereof. Background technique [0002] In road construction and maintenance projects, the process of spreading adhesive layer materials is usually used between adjacent structural layers to promote the formation of an overall stress structure between layers, thereby reducing interlayer structural shifts, hugs and other diseases caused by traffic loads. . The interlayer bonding strength and anti-skid ability provided by the adhesive layer material can form a whole between the layers of the pavement structure and improve the durability of the pavement. [0003] However, in the actual construction process, the existing adhesive layer materials, after the spreading is completed, the demulsification speed is slow ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L23/06C08L23/12C08L1/28C08K5/19C08K3/16
Inventor 王文峰郭良倩吴春颖刘伟牛晓伟叶勤
Owner 南京交科瑞路技术有限公司
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