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A kind of permeable concrete additive and preparation method thereof

A technology of permeable concrete and additives, which is applied in the field of building materials, can solve the problems of cumbersome maintenance process of permeable concrete, and achieve the effects of eliminating water spray maintenance, reducing costs and improving cladding force

Active Publication Date: 2018-10-16
SHANDONG HONGYI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the curing process of permeable concrete is an extremely tedious process.

Method used

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  • A kind of permeable concrete additive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A permeable concrete additive is composed of the following raw materials in parts by weight: 95 parts of micropowder material, 0.2 part of reinforcing agent, 0.5 part of defoaming agent, and 2 parts of viscosity-increasing and water-retaining agent;

[0034] The micropowder is SiO 2 Content greater than 90% silica fume;

[0035] The reinforcing agent is triisopropanolamine;

[0036] Described defoamer is organosilicon defoamer;

[0037] The thickening and water-retaining agent is prepared by the following steps:

[0038] 1) Put 30g of methacrylic acid and 18g of polyethylene glycol into a reaction vessel, add 80g of chloroform and 0.8g of hydroquinone, condense and reflux at 110°C for 3.5h in a nitrogen atmosphere to obtain the primary product ;

[0039] 2) The first product was distilled under reduced pressure at 40°C to remove chloroform to obtain an esterified macromonomer;

[0040] 3) 80g of allyl polyoxyethylene ether, 90g of distilled water, 0.8g of ammonium ...

Embodiment 2

[0046] A permeable concrete additive, which is composed of the following raw materials in parts by weight: 50 parts of micropowder material, 1.5 parts of reinforcing agent, 1 part of defoaming agent, and 6 parts of viscosity-increasing and water-retaining agent;

[0047] The micropowder is S95 grade finely ground mineral powder;

[0048] The reinforcing agent is diethanol monoisopropanolamine;

[0049] The thickening and water-retaining agent is prepared by the following steps:

[0050] 1) Put 40 parts by weight of methacrylic acid and 14 parts by weight of polyethylene glycol into a reaction vessel, add 90 parts by weight of chloroform and 0.6 parts by weight of hydroquinone, and condense in a nitrogen atmosphere at 110 ° C Reflux for 3.5 hours to obtain the first product;

[0051] 2) The first product was distilled under reduced pressure at 40°C to remove chloroform to obtain an esterified macromonomer;

[0052] 3) Allyl polyoxyethylene ether of 85 parts by weight, distil...

Embodiment 3

[0055] A permeable concrete additive, which is composed of the following raw materials in parts by weight: 0.5 parts of micropowder material, 3 parts of reinforcing agent, 1.5 parts of defoaming agent, and 10 parts of viscosity-increasing and water-retaining agent;

[0056] The micropowder material is primary fly ash;

[0057] The reinforcing agent is triisopropanolamine;

[0058] The thickening and water-retaining agent is prepared by the following steps:

[0059] 1) Put 50 parts by weight of methacrylic acid and 10 parts by weight of polyethylene glycol into a reaction vessel, add 100 parts by weight of chloroform and 0.4 parts by weight of hydroquinone, and condense in a nitrogen atmosphere at 110 ° C Reflux for 3.5 hours to obtain the first product;

[0060]2) The first product was distilled under reduced pressure at 40°C to remove chloroform to obtain an esterified macromonomer;

[0061] 3) Allyl polyoxyethylene ether of 90 parts by weight, distilled water of 90 parts ...

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Abstract

The invention discloses a pervious concrete additive. The pervious concrete additive is prepared from raw materials in parts by weight as follows: 0.5-95 parts of micropowder, 0.2-3 parts of a reinforcing agent, 0.5-1.5 parts of a defoaming agent and 2-10 parts of a viscosity-enhancing and water-retaining agent. The invention further discloses a preparation method of the pervious concrete additive. A large amount of industrial waste is utilized, sources are wide, the cost is low, the prepared pervious concrete effectively reduces cost of a water permeable brick while guaranteeing permeation coefficient and compressive strength, meanwhile, a new path is provided for industrial waste residue treatment, and remarkable economic and social benefits are obtained. The preparation method adopts a simple process, and is easy to operate and high in practicability.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a permeable concrete additive and a preparation method thereof. Background technique [0002] With the continuous improvement of urban construction, the requirements for building materials are also getting higher and higher. Due to its unique structure, permeable concrete has good air permeability and water permeability. It has a good effect on alleviating the urban heat island effect, replenishing groundwater and solving urban waterlogging caused by heavy rain. It can be applied to urban squares, residential roads and Some park roads. [0003] At present, the country vigorously advocates the construction of urban sponge projects, but due to the lack of professional technology and construction technology of permeable concrete, some problems such as high cost of permeable concrete, complicated construction technology and unobvious later functions have been ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/42C04B24/16C08F283/06C08F228/02C08F222/20C04B103/46C04B103/44
CPCC04B24/165C04B40/0039C04B2103/44C04B2103/46C08F283/065C04B18/146C04B24/122C04B24/42C04B18/141C04B18/08C08F228/02C08F222/20
Inventor 李耀朱孔赞侯陕秦尤敏赵洪义冯恩娟
Owner SHANDONG HONGYI TECH