Method for preventing outdoor building from accelerating deterioration and pollutant from precipitating on decorative topping surface

Abstract

The invention discloses a method for preventing an outdoor building from accelerating deterioration and a surface of a finishing coat from being separated out pollutant. A concrete structure laid with the finishing coat outdoors is provided with a water drain and air guide device. The method is as follows: in the concrete structure laid with the finishing coat outdoors, a plurality of water drainholes and air guide holes are arranged at preset intervals, inlet heights of the water drain holes and the air guide holes are larger than outlet heights, so that water permeating each structural layer between the finishing coat and the concrete structure can be discharged through the water drain holes and the air guide holes in a natural mode in time under the actions of gravity, sunshine, temperature difference and air convection, so as to avoid the water accumulated between the finishing coat and a concrete member intensifying deterioration of a material in each structural layer and separate out hydrolytic substances such as calcium hydroxide and the like in cement products to pollute the finishing coat. The method has the advantages of simple technical means, convenient construction, and common and easily obtained materials with low cost, and can be widely applied to various building constructions.

Description

A method for preventing the accelerated deterioration of outdoor buildings and the precipitation of pollutants on the surface of the finish layer technical field The invention belongs to the technical field of construction engineering, and in particular relates to a method for preventing accelerated deterioration of outdoor buildings and precipitation of pollutants on the surface of a finishing layer. Background technique Outdoor buildings such as bridges, roads, outdoor steps and steps, and outdoor square floors have been exposed to the atmosphere for many years. They not only have to bear the effects of pedestrians, vehicles, etc., but also continue to be exposed to the sun. , temperature difference, dry and wet and other external force alternating cycles. There is often seepage water or accumulated water in the structural layer between the facing layer and the concrete structure. Although in the prior art, some buildings are provided with waterproof materials or struct...

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Problems solved by technology

According to the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that, in order to solve the problem that existing outdoor buildings are prone to deterioration and pollution, the present invention provides a method of dredging rather than blocking to prevent outdoor buildings from Method for Accelerated Deterioration and Precipitation of Contaminants on Surface of Finishing Layer

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