Anti-corrosive pre-stressed concrete pipe pile foundation

Abstract

The invention relates to an anti-corrosive pre-stressed concrete pipe pile foundation, which is characterized in that the cementing material adopted by the concrete for preparing the pipe pile body is a granular micro-powder material with different varieties and fineness; and a cascaded matching method is adopted for matching. The anti-corrosive pre-stressed concrete pipe pile foundation has the obvious advantages of (1) needing not to change the production process of the pipe pile or increase the manufacture equipment, obviously improving the impermeability and sulfate resistance of the concrete, and leading the anti-corrosive effect to be better and more durable; and (2) utilizing the waste slag raw material and being cheaper than the method of coating and the method of permeation and rust retardant agent.

Description

Technical field: [0001] The invention relates to a pretensioned prestressed concrete pipe pile foundation, which is a corrosion-resistant prestressed concrete pipe pile foundation. Background technique: [0002] Prestressed concrete pipe pile foundations are widely used in various types of buildings. Under corrosive geological conditions, it is necessary to clean the pile tips, pile bodies, pile joints and pile caps that form the prestressed concrete pipe pile foundations. Links to take anti-corrosion measures. At present, it can be seen that most of the reported anti-corrosion prestressed pipe piles focus on the pile body or on the joints, and there is no report on the anti-corrosion prestressed concrete pipe pile foundation. In the past, the anti-corrosion methods of the pipe pile body include: [0003] (1) Paint anti-corrosion materials on the surface of the pipe pile, such as asphalt, epoxy resin, etc., but in the process of sinking the pile, due to the friction between...

AI Technical Summary

Problems solved by technology

[0003] (1) Paint anti-corrosion materials on the surface of the pipe pile, such as asphalt, epoxy resin, etc., but in the process of sinking the pile, due to the friction between the surface layer of the pipe pile and the soil, the anti-corrosion material will fall off and affect the effect. It is also very unsafe during transportation

[0004] (2) The method of adding various composite rust inhibitors into the pipe pile concrete to improve the corrosion resistance of the concrete, but because the pipe pile production process adopts high-pressure steam curing, in the process of high-pressure steam curing, the mixed rust The effectiveness of the composite rust inhibitor is destroyed, and its anti-corrosion function is almost lost

[0005] (3) The impregnation method, that is, the pipe pile is impregnated in the active silicone material, so that the silicone penetrates into the concrete first, which has played a role in blocking the penetration of corrosive media. This method is expensive and inconvenient to use

[0006] The anti-corrosion method of the joint can be seen in the reported mechanical joint method, which is very expensive, and there is no report on the effective corrosion resistance of the pile end.

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