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Road crack sealant and preparation method thereof

A sealant and road technology, applied in chemical instruments and methods, adhesives, and other chemical processes, can solve problems such as concrete slab crushing, poor embedding resistance, slab swelling and fracture, and achieve road adhesion Excellent, good high temperature resistance, good water resistance effect

Inactive Publication Date: 2015-02-18
李保集
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For joint fillers with poor embedding resistance, impurities are easy to embed in the joints, so that the joints lose their expansion and contraction properties, causing the board surface to bulge and break, especially when small-sized stones are embedded in the expansion joints, it will cause the board at the joints to Concentrated pressure at the end, crushing the concrete slab near the joint and other adverse consequences

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: (1) Take 2.5 kg of neodymium oxide with a particle size of 40-50nm, 20 kg of Chenrun Chemical PPG-6000 polypropylene glycol, and 13 kg of polymethylene polyphenyl polyisocyanate. Stir at a speed of 400-500 rpm for 30 minutes, then add 3 kg of dimethylolbutyric acid, 1.3 kg of sodium benzenesulfonate, 1 kg of crospovidone, and nano-titanium nitride 7 with a particle size of 400-500 nm kg, stir for 15 minutes at a speed of 500-600 rpm;

[0017] (2) Take 20 kg of Alz Chemical 2130 phenolic resin and 8 kg of dolomite powder with a particle size of 3-5um, mix and stir evenly;

[0018] (3) Take 25 kg of Donghai brand 90-A grade road petroleum asphalt, 11 kg of hydroxypropyl methylcellulose, and 2 kg of zinc fluoroborate, mix and stir evenly;

[0019] (4) Add the mixture in step (3) to the mixture in (1), stir at a speed of 300-400 rpm for 15 minutes, then add the mixture in step (2), and stir at a speed of 800-1000 rpm / min speed stirring for 10 minutes Serve.

...

Embodiment 2

[0025] Example 2: (1) Take 2 kilograms of neodymium oxide with a particle size of 40-50 nm, 19 kilograms of Chenrun Chemical PPG-6000 polypropylene glycol, and 12 kilograms of polymethylene polyphenyl polyisocyanate. Stir at a speed of 400-500 rpm for 30 minutes, then add 2 kg of dimethylolbutyric acid, 1 kg of sodium benzenesulfonate, 1 kg of crospovidone, and nano-titanium nitride 6 with a particle size of 400-500 nm. kg, stir for 15 minutes at a speed of 500-600 rpm;

[0026] (2) Take 18 kg of 2130 phenolic resin and 6 kg of dolomite powder with a particle size of 3-5um, mix and stir evenly;

[0027] (3) Take 24 kg of Donghai brand 90-A grade road petroleum asphalt, 10 kg of hydroxypropyl methylcellulose, and 2 kg of zinc fluoroborate, mix and stir evenly;

[0028] (4) Add the mixture in step (3) to the mixture in (1), stir at a speed of 300-400 rpm for 15 minutes, then add the mixture in step (2), and stir at a speed of 800-1000 rpm / min speed stirring for 10 minutes Ser...

Embodiment 3

[0034] Example 3: (1) Take 3 kilograms of neodymium oxide with a particle size of 40-50 nm, 23 kilograms of Chenrun Chemical PPG-6000 polypropylene glycol, and 15 kilograms of polymethylene polyphenyl polyisocyanate. Stir at a speed of 400-500 rpm for 30 minutes, then add 3 kg of dimethylolbutyric acid, 1.5 kg of sodium benzenesulfonate, 1.5 kg of crospovidone, and nano-titanium nitride 8 with a particle size of 400-500 nm. kg, stir for 15 minutes at a speed of 500-600 rpm;

[0035] (2) Take 25 kg of 2130 phenolic resin and 9 kg of dolomite powder with a particle size of 3-5um, mix and stir evenly;

[0036] (3) Take 28 kg of Donghai brand 90-A grade road petroleum asphalt, 12 kg of hydroxypropyl methylcellulose, and 2.5 kg of zinc fluoroborate, mix and stir evenly;

[0037] (4) Add the mixture in step (3) to the mixture in (1), stir at a speed of 300-400 rpm for 15 minutes, then add the mixture in step (2), and stir at a speed of 800-1000 rpm / min speed stirring for 10 minut...

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Abstract

The invention discloses a road crack sealant which is prepared from the following raw materials in parts by weight: 2kg-3kg of nanometer neodymium oxide, 19-23 parts of polypropylene glycol, 12-15 parts of polymethylene polyphenyl polyisocyanates, 2-3 parts of dimethylolbutanoic acid, 1-1.5 parts of benzene sulfonic acid sodium, 1-1.5 parts of crosslinked povidone, 6-8 parts of nanometer titanium nitride, 18-25 parts of phenolic resin 2130, 6-9 parts of dolomite powder, 24-28 parts of petroleum asphalt, 10-12 parts of hydroxypropyl methyl cellulose and 2-2.5 parts of zinc tetrafluoroborate hydrate. Prepared by compounding various components and active powder, the road crack sealant disclosed by the invention is good in waterproofness and elasticity and extremely good in road surface adhesivity, and also is quite good in heat resistance and wear resistance.

Description

technical field [0001] The invention belongs to the field of engineering materials, and relates to a road crack sealant and a preparation method thereof. Background technique [0002] Pavement cracks are one of the most common and most prone early diseases among all kinds of road surface damages. It almost accompanies the entire service period of the expressway and aggravates with the growth of road age. Because of the climate and the overload of vehicles, potholes have become one of the common diseases of asphalt concrete pavement. [0003] For joint fillers with poor embedding resistance, impurities are easy to embed in the joints, so that the joints lose their expansion and contraction properties, causing the board surface to bulge and break, especially when small-sized stones are embedded in the expansion joints, it will cause the board at the joints to The end pressure is concentrated, and the concrete slab near the joint is crushed and other adverse consequences. Thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J195/00C09J161/06C09J171/08C09J101/26C09J11/04C09J11/06C09K3/10E04B1/68
Inventor 李保集
Owner 李保集
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