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Interface agent and preparation method thereof and application of interface agent in fabricated building structure

A technology of interface agent and coagulation agent, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of long hardening time and high bonding strength of interface agent, achieve long hardening time and improve the interface Excellent bonding performance and low temperature resistance

Active Publication Date: 2020-06-16
JIANGSU SOBUTE NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the performance requirements of interface agents such as high bond strength, long hardening time, and low temperature resistance in the construction of new and old concrete for prefabricated components, the present invention provides an interface agent and its preparation method and its application in prefabricated building structures. application in

Method used

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  • Interface agent and preparation method thereof and application of interface agent in fabricated building structure
  • Interface agent and preparation method thereof and application of interface agent in fabricated building structure
  • Interface agent and preparation method thereof and application of interface agent in fabricated building structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] An interface agent for a prefabricated building structure, consisting of the following component A and component B in parts by weight:

[0046] The composition of the A component calculated in parts by weight is:

[0047]

[0048] The composition of the B component calculated in parts by weight is:

[0049]

[0050] Among them, ordinary portland cement is P.O 42.5 type cement; white portland is 42.5 type cement; fine aggregate is 40 mesh quartz sand; mineral powder is ultrafine mineral powder, and its specific surface area is 1400m2 / kg; The bulk density is 500kg / m3; the low-temperature reinforcing agent is a mixture of sodium silicate and calcium nitrate with a mass ratio of 1:1; the dispersant is polycarboxylate early-strength powder superplasticizer; the emulsion is vinyl acetate-ethylene copolymer emulsion; The cellulose ether is hydroxypropyl cellulose ether with a molecular weight of 50,000; the coagulant regulator is hydroxyethylidene diphosphonic acid coag...

Embodiment 2

[0052] An interface agent for a prefabricated building structure, consisting of the following component A and component B in parts by weight:

[0053] The composition of the A component calculated in parts by weight is:

[0054]

[0055] The composition of the B component calculated in parts by weight is:

[0056]

[0057] Among them, ordinary portland cement is P.O 42.5 type cement; white portland is 42.5 type cement; fine aggregate is 40 mesh quartz sand; mineral powder is ultrafine mineral powder, and its specific surface area is 1400m2 / kg; The bulk density is 500kg / m3; the low-temperature reinforcing agent is a mixture of sodium silicate and calcium nitrate with a mass ratio of 1:2; the dispersant is polycarboxylate early-strength powder superplasticizer; the emulsion is vinyl acetate-ethylene copolymer emulsion; The cellulose ether is hydroxypropyl cellulose ether with a molecular weight of 80,000; the coagulant regulator is hydroxyethylidene diphosphonic acid coag...

Embodiment 3

[0059] An interface agent for a prefabricated building structure, consisting of the following component A and component B in parts by weight:

[0060] The composition of the A component calculated in parts by weight is:

[0061]

[0062] The composition of the B component calculated in parts by weight is:

[0063]

[0064] Among them, ordinary portland cement is P.O 42.5 type cement; white portland is 42.5 type cement; fine aggregate is 40 mesh quartz sand; mineral powder is ultrafine mineral powder, and its specific surface area is 1400m2 / kg; The bulk density is 500kg / m3; the low-temperature reinforcing agent is a mixture of sodium silicate and calcium nitrate with a mass ratio of 1:1; the dispersant is polycarboxylate early-strength powder superplasticizer; the emulsion is vinyl acetate-ethylene copolymer emulsion; The cellulose ether is hydroxypropyl cellulose ether with a molecular weight of 80,000; the coagulant regulator is hydroxyethylidene diphosphonic acid coagul...

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Abstract

The invention provides an interface agent, a preparation method thereof and an application of the interface agent in a fabricated building structure. The interface agent uses an ultrafine composition,and the low-temperature construction performance and the bonding strength of the interface agent are improved. The interface agent is prepared from a component A and a component B, wherein the component A is prepared from ordinary Portland cement, white Portland cement, a low-temperature reinforcing agent, a dispersing agent, fine aggregate, mineral powder and dense silica fume, and the componentB is prepared from emulsion, cellulose ether, a thickening time control agent, a defoaming agent and water. The interface agent has the excellent characteristics of high bonding strength, long hardening time, low temperature resistance and the like. The interface agent is applied to a fabricated building structure, and has remarkable economic and social benefits for improving the construction efficiency and engineering quality of the fabricated building structure.

Description

technical field [0001] The invention relates to an interface agent, its preparation method and its application in assembled building structures. Background technique [0002] The construction of prefabricated building components involves the bonding of new and old concrete components such as laminated panels, balconies, air-conditioning panels, stairs, prefabricated beams, and prefabricated columns. However, due to the precast production process, the mold is coated with oil-based release agent, so that the product is still relatively smooth after demoulding, and the existing interface agent has poor permeability, and subsequent on-site pouring of new concrete is prone to hollowing, voiding, etc. problems, reducing the quality of construction. [0003] At the same time, during the assembly and construction of prefabricated components, the waiting time for the next process (new concrete pouring or grouting) after the application of the interface agent is relatively long, gene...

Claims

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Application Information

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IPC IPC(8): C04B18/14C04B28/04
CPCC04B40/0039C04B28/04C04B2111/00637C04B2201/50C04B14/06C04B18/12C04B18/146C04B12/04C04B22/085C04B2103/408C04B24/383C04B24/003C04B2103/50C04B24/2623C04B24/2676Y02W30/91
Inventor 沙建芳徐海源刘建忠郭飞刘加平夏中升李炜
Owner JIANGSU SOBUTE NEW MATERIALS
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