Glue used in gravel road paving, and application method thereof

A technology for paving gravel roads and application methods, which is applied in the direction of condensed pavements, roads, roads, etc., which are laid on site, can solve the problems of large increase in the pressure of drainage pipes, easy to accumulate water on the road surface, and difficult to dry, etc. The effect of noise, less usage, comfortable walking feeling

Active Publication Date: 2015-10-14
DONGGUAN LYUBAINENG CEMENTING COMPOUND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current gravel pavement has relatively low water permeability, and the pavement is prone to water accumulation and is not easy to dry. In case of continuous heavy rain, the pressure of urban drainage pipes will increase greatly, and urban waterlogging will easily occur

Method used

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  • Glue used in gravel road paving, and application method thereof
  • Glue used in gravel road paving, and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A glue for paving gravel roads, the glue is composed of polyurethane A material and polyurethane B material in a weight ratio of 5:4,

[0028] The weight percent of each component of polyurethane type A material is:

[0029] Trihydroxypolyether 330N, 70%;

[0030] Vinyl polymer grafted polyether polyol POP36 / 30, 10%;

[0031] Polyether GE-305, 20%;

[0032] It should be noted that 330N means polyether polyol with molecular weight up to 4800, POP36 / 30, 36 means POP viscosity is less than 3600, 30 means POP hydroxyl value is 30±2, GE-305 means product model.

[0033] The weight percentage of each component of polyurethane B material is:

[0034] 4,4'-Diphenylmethane diisocyanate, 50%;

[0035] Hydrogenated phenylmethane diisocyanate, 50%.

[0036] Polyurethane material A and polyurethane material B undergo an addition reaction to form the above polyurethane glue. The polyurethane glue is an odorless, light yellow viscous liquid. In order to determine the curing time ...

Embodiment 2

[0038] A glue for paving gravel roads, the glue is composed of polyurethane A material and polyurethane B material in a weight ratio of 5:4,

[0039] The weight percent of each component of polyurethane type A material is:

[0040] Trihydroxypolyether 330N, 70%;

[0041] Vinyl polymer grafted polyether polyol POP36 / 30, 10%;

[0042] Polyether GE-305, 20%;

[0043] The weight percentage of each component of polyurethane B material is:

[0044] 4,4'-Diphenylmethane diisocyanate, 60%;

[0045] Hydrogenated phenylmethane diisocyanate, 40%.

[0046] The performance of this glue is with embodiment 1.

Embodiment 3

[0048] The present embodiment provides a kind of method that above-mentioned polyurethane glue is applied in paving stone road, please refer to figure 1 As shown, it is a flowchart of the application method, and the specific steps are:

[0049] 1) Put the stones used for paving into the mixing tank;

[0050] 2) Prepare the glue:

[0051] Preparation of polyurethane type A material: Mix trihydroxy polyether 330N, vinyl polymer grafted polyether polyol POP36 / 30 and polyether GE-305 in a weight ratio of 7:1:2, and stir evenly to form polyurethane type A material;

[0052] Preparation of polyurethane material B: Mix 4,4'-diphenylmethane diisocyanate and hydrogenated phenylmethane diisocyanate at a weight ratio of 1:1, stir evenly to become polyurethane material B;

[0053] Mix the polyurethane type A material with the polyurethane type B material, stir for 10-15 minutes until uniform, and become polyurethane type glue;

[0054] 3) After preparing the glue, stir the glue and th...

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Abstract

The invention discloses a glue used in gravel road paving, and an application method thereof. The glue is composed of a polyurethane material A and a polyurethane material B according to a weight ratio of 5:4. The polyurethane material A comprises, by weight, 70% of trihydroxy polyether 330N, 10% of vinyl-polymer-grafted polyether polyol POP36 / 30, and 20% of polyether GE-305. The polyurethane material B comprises, by weight, 50-60% of 4,4'-diphenyl methane diisocyanate, and 40-50% of hydrogenated diphenyl methane diisocyanate. The application method comprises the following steps: gravels used for paving are placed in a stirring tank; the glue is prepared, and is well mixed with the gravels; and the mixture is used for paving a road. According to the invention, the glue provided by the invention is used for paving a gravel road, such that the pavement has high porosity, and the pavement can be dried fast when wet. The glue is odorless and dust-free. With the glue, construction is simple and highly efficient. With the glue, the pavement has good shock-absorption performance and better freezing and thawing resistances.

Description

technical field [0001] The invention relates to the field of glue paving, in particular to a glue used for paving gravel roads and an application method thereof. Background technique [0002] In the current paving construction, cement or asphalt is often mixed with stones. The construction process is complicated and has dust and odor, which will cause damage to the health of construction workers. The current gravel pavement has relatively low water permeability, and the pavement is prone to water accumulation and is not easy to dry. In case of continuous heavy rain, the pressure of urban drainage pipes will increase greatly, and urban waterlogging will easily occur. In addition, due to the acceleration of urbanization and dense urban buildings, asphalt roads and cement pavements have greater heat absorption rate and smaller specific heat capacity than suburban soil and preparation, which causes urban areas to heat up quickly and emit heat to the surroundings and the atmosphe...

Claims

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Application Information

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IPC IPC(8): C04B26/16E01C7/30
Inventor 林德高
Owner DONGGUAN LYUBAINENG CEMENTING COMPOUND CO LTD
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