High-temperature-resistant waterproof emulsified asphalt

A technology of emulsified asphalt and high temperature resistance, applied in asphalt coatings, fireproof coatings, coatings, etc., can solve problems such as waterproof layer damage, achieve the effects of improving bonding strength, high toughness, and improving heat resistance

Inactive Publication Date: 2016-10-26
甘肃路桥善建科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the temperature resistance of waterproof emulsified asphalt can barely reach 150°C without flowing, while the temperature of hot asphalt mixture generally reaches about 160°C during construction, which can easily cause damage to the waterproof layer

Method used

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  • High-temperature-resistant waterproof emulsified asphalt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 High temperature-resistant waterproof emulsified asphalt, which is an emulsified asphalt with a pH value of 3 composed of raw materials in the following weight ratio (kg / kg): 2% emulsifier, 40% base asphalt, 10% latex, Additive I is 0.1%, additive II is 0.1%, and the balance is water.

[0028] in:

[0029] The emulsifier is made by mixing raw materials in the following weight ratio (kg / kg): aminated lignin 23%, aliphatic amine 35%, and the balance is water.

[0030] Aminated lignin refers to the product obtained by Mannich reaction of amine compounds, aldehyde compounds and lignin.

[0031] The number of carbon atoms of the aliphatic amine is 12, and the amine group is a primary or secondary amine.

[0032] The base asphalt is petroleum asphalt with an index penetration of 50.

[0033] The latex is mixed by the following weight ratio (kg / kg): cationic neoprene latex 24%, acrylic latex 23%, and the balance is water.

[0034] Additive I is made by mixing raw...

Embodiment 2

[0041] Example 2 High-temperature-resistant waterproof emulsified asphalt, which is emulsified asphalt with a pH value of 8 composed of raw materials in the following weight ratio (kg / kg): 4% emulsifier, 45% base asphalt, 20% latex, Additive I is 1%, additive II is 1%, and the balance is water.

[0042] in:

[0043] The emulsifier is made by mixing raw materials in the following weight ratio (kg / kg): aminated lignin 35%, aliphatic amine 23%, and the balance is water.

[0044] Aminated lignin refers to the product obtained by Mannich reaction of diethylenetriamine, formaldehyde, and broad-leaved pine lignin.

[0045] The number of carbon atoms in the aliphatic amine is 22, and the amine group is a primary or secondary amine.

[0046] The base asphalt is petroleum asphalt with an index penetration of 120.

[0047] Latex, additive I, additive II are the same as in Example 1.

[0048] The preparation method of the high temperature resistant waterproof emulsified asphalt compri...

Embodiment 3

[0053] Example 3 High temperature-resistant waterproof emulsified asphalt, which is emulsified asphalt with a pH value of 5.5 composed of the following weight ratios (kg / kg): 3% emulsifier, 42% base asphalt, 15% latex, Additive I is 0.5%, additive II is 0.5%, and the balance is water.

[0054] in:

[0055] The emulsifier is made by mixing raw materials in the following weight ratio (kg / kg): aminated lignin 29%, aliphatic amine 29%, and the balance is water.

[0056] Aminated lignin refers to the product obtained by Mannich reaction of triethylenetetramine, formaldehyde, and coniferous pine lignin.

[0057] The number of carbon atoms in the aliphatic amine is 17, and the amine group is a primary or secondary amine.

[0058] The base asphalt is petroleum asphalt with an index penetration of 85.

[0059] Latex, additive I, additive II are the same as in Example 1.

[0060] The preparation method of the high temperature resistant waterproof emulsified asphalt comprises the fol...

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Abstract

The invention relates to high-temperature-resistant waterproof emulsified asphalt. The high-temperature-resistant waterproof emulsified asphalt with a pH (potential of hydrogen) value of 3-8 is characterized by comprising, by weight, 2%-4% of emulsifiers, 40%-45% of matrix asphalt, 10%-20% of latex, 0.1%-1% of additives I, 0.1%-1% of additives II and the balance water. The high-temperature-resistant waterproof emulsified asphalt has the advantages that the high-temperature-resistant waterproof emulsified asphalt is excellent in performance, and the heat resistance, the toughness and the storage stability can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of waterproof emulsified asphalt, in particular to high temperature resistant waterproof emulsified asphalt. Background technique [0002] Emulsified asphalt is a kind of water-based paint, which is non-toxic and environmentally friendly, can be sprayed, and has a fast construction speed. It has been widely used in the construction and repair of ordinary roads, but its temperature resistance is poor, and it is difficult to achieve high-grade roads and bridges. requirements. [0003] Road and bridge waterproof coatings have their special performance requirements, which are mainly reflected in: the coating film of the waterproof layer needs to withstand the asphalt concrete paving temperature of 150 °C without affecting the performance of the waterproof layer. At present, the temperature resistance of waterproof emulsified asphalt can barely reach 150°C without flowing, while the temperature of hot asphalt mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D111/02C09D133/00C09D7/12
CPCC09D195/00C08L2201/08C08L2205/035C09D5/18C09D7/61C09D7/63C09D7/65C08L11/02C08L33/00C08K13/02C08K3/34C08K5/101C08K5/092
Inventor 张星宇窦晖曹贵王朝军
Owner 甘肃路桥善建科技有限公司
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