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Adhesive layer emulsified asphalt and preparation method thereof

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

Active Publication Date: 2015-03-11
南京交科瑞路技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 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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  • Adhesive layer emulsified asphalt and preparation method thereof
  • Adhesive layer emulsified asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The first is the preparation of intermediate materials, select: No. 30 petroleum asphalt as low-grade asphalt; H 3 PO 4 Polyphosphoric acid with a content of 105% is used as an emulsifying additive; polyethylene wax with a melting point of 135°C is used as a modifier; the asphalt emulsifier is of the fast-cracking and fast-setting type, and the cationic asphalt emulsifier EM44 of Akzo Nobel is used in this example; The acid-base regulator uses orthophosphoric acid with a concentration of 90%. Above-mentioned each material and water are weighed by following weight:

[0035] No. 30 petroleum asphalt 60kg

[0036] h 3 PO 4 Polyphosphoric acid with a content of 105% 1kg

[0037] Polyethylene wax with a melting point of 135°C 3kg

[0038] EM44 0.2kg

[0039] Orthophosphoric acid 0.2kg

[0040] Water 35.6kg

[0041] Put the weighed No. 30 petroleum asphalt in a stirrer, heat it to 170°C, start stirring, and add the weighed H 3 PO 4 Polyphosphoric acid with a conten...

Embodiment 2

[0047] The first is the preparation of intermediate materials. Select: No. 10 petroleum asphalt as low-grade asphalt; polyethylene wax with a melting point of 90°C as a modifier; the asphalt emulsifier is fast-cracking and fast-setting type, and this example uses the cationic product of Akzo Nobel Company Asphalt emulsifier E4819; acid-base regulator is concentrated hydrochloric acid with a concentration of 36% hydrogen chloride solution. Above-mentioned each material and water are weighed by following weight:

[0048] No. 10 petroleum asphalt 40kg

[0049] Emulsifying Additive 0kg

[0050] Polyethylene wax with a melting point of 90°C 2kg

[0051] E4819 1.0kg

[0052] Concentrated hydrochloric acid 1.0kg

[0053] Water 56.0kg

[0054] Put the weighed No. 10 petroleum asphalt in a stirrer, heat it to 175°C, start stirring, add the weighed polyethylene wax at the same time, and continue stirring for 3 hours, so that the polyethylene wax and asphalt are fully dissolved, and...

Embodiment 3

[0060] The first is the preparation of intermediate materials, select: No. 20 petroleum asphalt as low-grade asphalt; H 3 PO 4 Polyphosphoric acid with a content of 110% is used as an emulsification additive; polyethylene wax with a melting point of 105°C is used as a modifier; the asphalt emulsifier is of the fast-cracking and fast-setting type, and this example uses the anion from Henan Fengqiu Taihang Chemical Co., Ltd. Asphalt emulsifier GTA-A02; acid-base regulator selected concentration of 100% sodium hydroxide particles. Above-mentioned each material and water are weighed by following weight:

[0061] No. 30 petroleum asphalt 50kg

[0062] h 3 PO 4 Polyphosphoric acid with a content of 110% 0.5kg

[0063] Polyethylene wax with a melting point of 105°C 0kg

[0064] GTA-A02 2.0kg

[0065] Sodium hydroxide 0.5kg

[0066] water 47kg

[0067] Put the weighed No. 20 petroleum asphalt in a stirrer, heat it to 170°C, start stirring, and add the weighed H 3 PO 4 Polyp...

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Abstract

The invention relates to an adhesive layer emulsified asphalt and a preparation method thereof. The emulsified asphalt comprises the following components in percentage by weight: 40%-60% of low mark number asphalt, 0-3% of an emulsification promoting additive, 0-3% of a modifier, 0.2%-2% of an asphalt emulsifier, 0.2%-2% of an acid-base modifier and the balance of water. The preparation method comprises the following steps: firstly preparing two intermediate materials, namely easily emulsified and modified low mark number asphalt and liquid soap, and then performing high-speed grinding on the intermediate materials to form unsteady emulsified asphalt; finally performing constant-temperature stirring on the unsteady emulsified asphalt to obtain the adhesive layer emulsified asphalt. The adhesive layer emulsified asphalt has the benefits of high demulsification speed and quick forming, and thus the construction efficiency is greatly improved; the adhesive layer emulsified asphalt is of a non-sticking characteristic, the damage of construction equipment and transport vehicles to an adhesive layer material is avoided, the adhesive efficiency and adhesive strength are improved, and thus the durability of road surfaces is improved; the asphalt is high in high temperature performance; meanwhile, the technology is simple and practical, and is beneficial to popularization and application.

Description

[0001] technical field [0002] The invention relates to the field of road materials, in particular to a fast-setting, non-sticky emulsified asphalt used for bonding layers between structural layers in newly built or maintained road surfaces and a preparation method thereof. Background technique [0003] In road construction and maintenance projects, the process of spreading sticky layer materials is usually used between adjacent structural layers to promote the formation of an overall stressed structure between layers, thereby reducing the damage caused by traffic loads such as shifting and hugging of inter-layer structures . The interlayer bonding strength and anti-skid ability provided by the adhesive layer material can bond the interlayers of the pavement structure into a whole and improve the durability of the pavement. [0004] However, in the actual construction process, the existing sticky layer materials have slow demulsification speed and slow formation of strengt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08J3/03E01C7/24
Inventor 王文峰刘伟吴春颖牛晓伟
Owner 南京交科瑞路技术有限公司
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