Interface agent for steel structure inner wall with anticorrosive coating

Abstract

The invention relates to an interface agent for a steel structure inner wall with an anticorrosive coating. The interface agent is prepared from the following raw materials in parts by weight: 200-600parts of cement, 200-800 parts of sand, 30-100 parts of redispersible latex powder, 0.5-3.0 parts of cellulose ether and 0.05-0.30 part of triethanolamine. The interface agent has the beneficial effects that the interface agent can improve the adhesion performance between the steel structure with the anticorrosive coating and surface mortar and is better in affinity with the steel structure withthe anticorrosive coating and higher in adhesion strength; the cement and the redispersible latex powder form a composite cementing material system, the cement is used for initial rapid hydration to provide the initial adhesion strength, the redispersible latex powder is emulsified to form a film after being contacted with water, the film and a hydration product of the cement form an interpenetrating network structure, and good adhesion performance and a certain deformation resistance performance are formed on the steel structure with the anticorrosive coating; cellulose ether can improve theconstruction performance and the water retention performance of the interface agent and has the auxiliary effect to improvement of the adhesion performance of the interfacial agent; and triethanolamine can accelerate the strength growth speed and can also improve the adhesion performance of the interface agent.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an interface agent for an inner wall of a steel structure with an anti-corrosion coating. Background technique [0002] Compared with traditional houses, steel structure houses have strong advantages in terms of structural performance, use function, design and construction, and comprehensive cost. The development of steel structure houses has epoch-making significance in promoting the industrialization of houses and improving the quality of houses, which is beneficial to my country's construction industry. Technological progress in the industry is conducive to stimulating domestic demand in the metallurgical industry and promoting the development of energy-saving and environmentally friendly building materials, which is one of the transformation and upgrading directions of the construction industry. Envelope system is an important system for steel structure residences. ...

AI Technical Summary

Problems solved by technology

The interface agent is used as the connection layer between the base layer and the cladding layer of the enclosure system. Its bonding strength is a very important indicator. Due to the insufficient performance of the interface agent, the enclosure system is hollowed out, falling off, and poorly bonded. However, most of the existing interface agents are only used for the bonding between the concrete wall surface and the cladding material. At present, there is still a lack of interface agents specially suitable for the interior walls of steel structures with anti-corrosion coatings.

[0004] Compared with the steel structure, the concrete wall surface has more pores on the surface, and the mechanical and chemical bonding force between the interface agent and the interface agent is greater, while the surface of the steel structure with anti-corrosion coating is relatively smooth and has extremely low water absorption, so the steel structure The requirements for the bonding performance of the interface agent are higher. Therefore, the bonding performance of the interface agent used in traditional concrete structures and masonry structures cannot meet the requirements.

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