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Bonding treating agent for concrete inorganic interface

A technology of inorganic interface glue and treatment agent, which is applied in the field of large-volume concrete inorganic bonding materials, can solve the problems of concrete structure stress concentration, high binder strength, large elastic modulus, etc., and achieve sustainable development, low heat, and elasticity The effect of small modulus

Active Publication Date: 2013-08-14
CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the above-mentioned technical problems, the present invention proposes a concrete inorganic interface bonding treatment agent suitable for the repair bonding of concrete and the bonding treatment of the surface of the bulk concrete construction sub-store. The existing binder has high strength, large elastic modulus, and large deformation, and the technical problems of stress concentration are easily caused when the concrete structure is stressed.

Method used

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  • Bonding treating agent for concrete inorganic interface

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A concrete inorganic interface bonding treatment agent is characterized in that the weight ratio:

[0029] Portland cement 100;

[0030] mineral admixture 10;

[0031] Polycarboxylate powder water reducer 0.16;

[0032] nano-SiO 2 0.5;

[0033] Redispersible latex powder 1.

Embodiment 2

[0035] A concrete inorganic interface bonding treatment agent is characterized in that the weight ratio:

[0036] Portland cement 100;

[0037] mineral admixture 15;

[0038] heavy calcium powder 1;

[0039] Modified bentonite 0.10;

[0040] Polycarboxylate powder water reducer 0.16;

[0041] nano-SiO 2 0.8;

[0042] Redispersible latex powder 2;

[0043] Water retaining agent 0.1.

Embodiment 3

[0045] A concrete inorganic interface bonding treatment agent is characterized in that the weight ratio:

[0046] Portland cement 100;

[0047] mineral admixture 20;

[0048] heavy calcium powder 1;

[0049] Modified bentonite 0.1;

[0050] Polycarboxylate powder water reducer 0.16;

[0051] nano-SiO 2 0.8;

[0052] Redispersible latex powder 2;

[0053] Water retaining agent 0.1.

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Abstract

The invention belongs to the field of mass concrete inorganic material bonding, in particular relates to a high performance inorganic interface bonding treating agent for cast-in-situ mass concrete work, and can be used for repairing bonding of concrete, a bonding treatment of mass concrete construction bin dividing plane and the like. The bonding treating agent is composed of portland cement, a water reducer, a siliceous material, coarse whiting powder, a water-retaining agent, redispersibility emulsion powder, thickening agent modification bentonite and mineral admixture. The bonding material can be widely applied to a matrix of different treating effects, hydration products can penetrate into matrix concrete aggregate microgaps, bonding strength is improved continuously at a later stage for more than one year, and the bonding treating agent has the advantages of being good in water-retaining property, convenient to construct, durable and environment-friendly. A testing effect on important engineering portions of hydropowder station anti-abrasion concrete repairing and mass concrete construction bin dividing plane bonding and the like which are high in bonding requirements, durable and high in anti-seeping requirements are remarkable.

Description

technical field [0001] The invention relates to the field of large-volume concrete inorganic bonding materials, in particular to a high-performance inorganic interface bonding treatment agent for cast-in-place large-volume concrete engineering, which is suitable for repairing and bonding of concrete, and for sub-storage surface of large-volume concrete construction Adhesive treatment, etc. Background technique [0002] At present, interface agents are widely used in the field of construction, but they are mainly used for wall bonding tiles, plastering of aerated concrete, self-leveling of ground materials, etc. The interface adhesives used in the market are mainly divided into three categories, inorganic interface agents, organic interface agents and composite interface agents. Organic interface agents and composite interface agents have good bonding performance, but they will release substances harmful to the human body, and the cost is high, so they are not suitable for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
Inventor 杨代六王田堂陈雪梅王建洪阳运霞吴勇田先忠黎茜杜青林
Owner CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE