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Prepared agent of base course suitable to highway for intensifying waterproof performance of basal layer of roadbed

A technology for expressways and grassroots, applied in the field of waterproof enhancers, can solve the problems of shortening the service life of expressways, increasing maintenance funds and costs, and large maintenance times and workload, achieving good toughness, simple operation, and excellent water resistance and dispersion. Effect

Inactive Publication Date: 2007-05-23
窦家龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, the sticky material (such as soil) in the base course has been greatly reduced, leaving only the aggregate (such as gravel) to form the space under the asphalt oil surface, which in turn causes damage to the road surface, shortens the normal service period of the expressway, and requires a large number of repairs and workload , the maintenance funds and costs increase, and the traffic resistance caused by maintenance is often

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The base compound is suitable for the waterproof reinforcement of expressway subgrade base, which is characterized in that it is prepared from the following raw materials according to the weight ratio: water: 5.01 sodium silanolate: 1.188 sodium silicate: 2.97 pure acrylic emulsion: 0.505;

[0019] The production process of the present invention is as follows: according to the above weight ratio, sodium siliconate, sodium silicate and water are mixed and stirred for 40 minutes, then pure acrylic emulsion is added and stirred for 40 minutes to obtain the finished product.

Embodiment 2

[0021] Choose according to 1000 grams of raw material total amount of the present invention, wherein, choose raw material water 515.5 grams, sodium silanolate 123.7 grams, sodium silicate 309.3 grams, pure acrylic emulsion 51.5 grams. Sodium silanolate, sodium silicate and water were mixed and stirred for 30 minutes according to the above weight, then pure acrylic emulsion was added and stirred for 60 minutes to obtain the finished product.

[0022] The finished product of the present invention belongs to silicone-modified acrylic acid water-based environment-friendly formulation, one-component, white emulsion in appearance, and its temperature resistance range: before reaction: -15℃~+18℃, after reaction: -45℃~+ 160℃; PH value: 13.0±0.5; viscosity: 7.0~9.0mpa.s; free formaldehyde content≤0.1g / kg; VOC content≤200g / L; W(Pb) content≤90mg / kg; W(Hg) content ≤60mg / kg.

Embodiment 3

[0024] The using method of finished product of the present invention is as follows:

[0025] 1. Roll the base layer into shape.

[0026] 2. Spray a sufficient amount of this solution evenly on the surface of the base layer by spraying.

[0027] 3. Spray once if the penetration thickness is not enough, you can spray the second time, but it must be done before the first time is dry.

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Abstract

A chemical for reinforcing the water-proof bad of expressway is prepared from water, silanol, sodium sodium silicate and acrylate emulsion through sequentially and proportionally mixing and stirring. It can improve the strength, toughness, and water and temp difference resistance of expressway bed.

Description

Technical field: [0001] The invention relates to a waterproof enhancer, in particular to a base compound suitable for waterproof reinforcement of expressway subgrade bases. Background technique: [0002] At present, in the process of expressway maintenance and improvement, the subgrade base of the expressway is generally repaired after the original base is excavated, and then the base is re-paved to the oil surface layer. For the expressway base layer, due to the large traffic flow, after a certain period of operation, the surface asphalt oil surface will produce scattering cracks to allow surface water to infiltrate, and the water in the cracks or lines will be generated at the moment when heavy-duty vehicles pass by at high speed. Under the action of high pressure, high-pressure and high-speed impact water jets are formed, and the impacted soil forms mud that is squeezed out from the cracks (grains). For a long time, the sticky material (such as soil) in the base course h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C3/04C09K17/02
CPCC04B2111/00482C04B2111/0075C04B2111/72C04B28/26C04B24/2641C04B24/42
Inventor 窦家龙
Owner 窦家龙