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Multi component sealant for prefabricated concrete building joints and preparation method thereof

A concrete building and prefabricated technology, applied in the field of sealants, can solve the problems of long construction period, large energy consumption, etc., achieve good waterproof and sealing effects, solve joint problems, and avoid rainwater penetration

Inactive Publication Date: 2018-06-15
HUBEI HUITIAN NEW MATERIALS STOCK CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional construction methods have exposed many shortcomings, such as long construction period, low labor production efficiency, poor quality control, large energy consumption, and do not meet the requirements of energy saving and emission reduction. Traditional buildings can no longer keep up with the development of modern urbanization. pace

Method used

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  • Multi component sealant for prefabricated concrete building joints and preparation method thereof

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preparation example Construction

[0035] The present invention also provides a method for preparing a multi-component sealant for any of the above prefabricated concrete building joints, comprising the following steps:

[0036] Prepare component A, component B and component C, and the sequence of preparing component A, component B and component C is not limited;

[0037] The preparation method of component A is: add silane-modified polyether polymer I, silane-modified polyether polymer II, plasticizer, nano-calcium carbonate, ground calcium carbonate, thixotropic agent and functional auxiliary to the reactor. agent, blended under vacuum for 1 to 2 hours to obtain component A;

[0038] The preparation method of component B is as follows: add plasticizer, heavy calcium carbonate, kaolin, and catalyst to the reaction kettle, and blend under vacuum conditions for 1 to 2 hours to obtain component B of weather-resistant sealant for prefabricated concrete joints ;

[0039] C component is color paste;

[0040] Pack...

Embodiment 1

[0044] With 20 parts of silane modified polyether polymer I, 10 parts of silane modified polyether polymer II, 25 parts of plasticizer, 30 parts of nanometer calcium carbonate, 10 parts of heavy calcium carbonate, 2 parts of thixotropic agent, 3 parts Functional additives, blended for 1 to 2 hours under vacuum protection, to obtain component A of weather-resistant sealant for prefabricated concrete joints; 25 parts of plasticizer, 60 parts of heavy calcium carbonate, 5 parts of kaolin, 10 parts of catalyst Blending for 1 to 2 hours under vacuum protection to obtain component B of weather-resistant sealant for prefabricated concrete joints. Mix components A and B according to the mass ratio of 10:1, add an appropriate amount of component C, mix and stir for 15 minutes and then start construction.

Embodiment 2

[0046] With 25 parts of silane modified polyether polymer I, 5 parts of silane modified polyether polymer II, 20 parts of plasticizer, 30 parts of nanometer calcium carbonate, 15 parts of heavy calcium carbonate, 2.5 parts of thixotropic agent, 2.5 parts Functional additives, blended for 1 to 2 hours under vacuum protection, to obtain component A of weather-resistant sealant for prefabricated concrete joints; 30 parts of plasticizer, 50 parts of heavy calcium carbonate, 8 parts of kaolin, 12 parts of catalyst Blending for 1 to 2 hours under vacuum protection to obtain component B of weather-resistant sealant for prefabricated concrete joints. Mix components A and B according to the mass ratio of 10:1, add an appropriate amount of component C, mix and stir for 15 minutes and then start construction.

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Abstract

The invention discloses a multi component sealant for prefabricated concrete building joints and a preparation method thereof. The multi component sealant includes an A component, a B component and anappropriate amount of a C component; the mass ratio of A component to B component is 10:1, every 100 parts of the A component include 20-50 parts of a silane-modified polyether polymer I, 5-50 partsof a silane-modified polyether polymer II, 5-35 parts of a plasticizer, 10-30 parts of nano calcium carbonate, 5-20 parts of heavy calcium carbonate, 0.1 to 3 parts of a thixotropic agent and 0.1 to 5parts of a functional auxiliary; the silane-modified polyether polymer I and the silane-modified polyether polymer II are polyoxypropylene ethers with hydrolysable silicon alkyl groups as end groups,every 100 parts of the B component include 15-35 parts of the plasticizer, 40-60 parts of the heavy calcium carbonate, 1-10 parts of kaolin and 1-20 parts of a catalysts, and the C component is colorpaste. The multi component sealant has good adhesion, excellent waterproof and sealing effect and elastic recovery rate reaching 90%, effectively resists the displacement of a prefabricated concretebuilding, has elongation at break reaching 700%, and effectively solves the joint problem caused by the displacement.

Description

technical field [0001] The invention relates to the technical field of sealants, in particular to a multi-component sealant for prefabricated concrete building joints and a preparation method thereof. Background technique [0002] Traditional construction methods have exposed many shortcomings, such as long construction period, low labor production efficiency, poor quality control, large energy consumption, and do not meet the requirements of energy saving and emission reduction. Traditional buildings can no longer keep up with the development of modern urbanization. pace. Prefabricated buildings have gradually become the development direction of the construction industry because of their obvious advantages such as ensuring project quality, reducing energy consumption, and shortening the construction period. The waterproof and sealing of buildings has always been a prerequisite for the complete realization of building functions, because the waterproof effect directly affect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J171/00C09J11/08C09J11/04C09J11/06
CPCC08K2003/265C08K2201/011C08K2201/014C08L2205/025C09J11/04C09J11/06C09J11/08C09J171/00C08L71/00C08K13/02C08K3/26C08K3/346C08K5/12
Inventor 李华伟赵瑞王翠花韩胜利吴正明章锋
Owner HUBEI HUITIAN NEW MATERIALS STOCK CO LTD
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