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A kind of high-strength anti-seepage concrete and preparation method thereof

A technology of impermeable concrete and concrete, which is applied in the field of building materials, can solve problems such as restricting the application of concrete materials, leakage, etc., and achieve the effects of improving mechanical properties, simplifying process steps, and saving resources

Active Publication Date: 2021-07-13
台州远巢新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of ordinary concrete's own structure, leakage often occurs during use, which seriously restricts the application of concrete materials.

Method used

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  • A kind of high-strength anti-seepage concrete and preparation method thereof
  • A kind of high-strength anti-seepage concrete and preparation method thereof
  • A kind of high-strength anti-seepage concrete and preparation method thereof

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preparation example Construction

[0044] The preparation method of polyurethane aqueous dispersion 1 is:

[0045] Step 1: Add polytetrahydrofuran ether diol and dimethylol propionic acid into the reactor, start stirring, control the temperature of the reactor at 70°C, slowly add isocyanate, react for 4 hours, add sodium ethylenediamine ethanesulfonate, and react 3 hours;

[0046] Step 2, continue to add acetone to the reactor, stir evenly, then slowly add benzphenylmethanol, control the temperature of the reactor to 50°C, and react for 5 hours;

[0047] Step 3, continue to add a triethylamine aqueous solution with a mass concentration of 2% in the reactor, control the pH value of the mixture in the range of 6 to 8, stir evenly, remove acetone by distillation under reduced pressure, add organic silicon wetting agent, For defoaming agent, add deionized water to the reactor until the solid content of the mixture is 40%, and stir to obtain the polyurethane aqueous dispersion 1.

[0048] The preparation method of...

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Abstract

The invention belongs to the technical field of building materials, and in particular relates to a high-strength impermeable concrete. The raw material of the concrete contains modified natural river sand, and the natural river sand is modified by 3-aminobutyltriethoxysilane. There are amino groups on the surface of the particles, which are cross-linked with the macromolecules in the special polyurethane aqueous dispersion, which can reduce the internal voids after the concrete is cured, block the capillary channels, improve the impermeability of the concrete, and have excellent mechanical properties. The invention also provides a preparation method of the concrete.

Description

technical field [0001] The invention belongs to the technical field of building materials. More specifically, it relates to a high-strength anti-seepage concrete and a preparation method thereof. Background technique [0002] Concrete is an artificial stone made of cement as the main cementitious material, mixed with water, sand, stones and other building materials in an appropriate proportion, after uniform mixing, compact molding and curing and hardening; concrete has good plasticity and excellent durability and strength properties are widely used in construction, road construction and other fields. However, due to the characteristics of ordinary concrete's own structure, leakage often occurs during use, which seriously restricts the application of concrete materials. [0003] Therefore, it is necessary to provide a concrete material with excellent impermeability to solve the problems in the prior art. Contents of the invention [0004] In order to solve the problems ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B20/02C08G18/73C08G18/66C08G18/48C08G18/34C08G18/38C08G18/28C08G18/12C04B24/28
CPCC04B20/023C04B24/282C04B28/04C04B2201/50C08G18/12C08G18/348C08G18/4854C08G18/6685C08G18/6692C08G18/73C08G18/3855C08G18/2825C04B14/068C04B24/42C04B2103/50C04B14/00
Inventor 彭材大
Owner 台州远巢新型建材有限公司