The Natural slate lesions of the lime denudation

This phenomenon from the carbonated lime solution has not penetrated into the external wall surface, and the atmospheric reaction of carbon dioxide, easy to produce easily hydrolyzed calcium carbonate, as a layer of permanent coating.

This phenomenon occurs mainly in the Natural slate seams. In dealing with the phenomenon of lime erosion, it is necessary to dissolve calcium carbonate with acidic solution, and then thoroughly clean the Natural slate with water, and finally the use of waterproof resin for injection, in order to prevent the lime solution re-oozing.

This phenomenon is mainly due to Natural slate within the pores and cracks absorbed by the cold water caused by cold. Because the liquid water after the volume expansion rate of about 10%, so that the Natural slate has a lot of pressure inside the expansion of Natural slate. Some of the porous Natural slate is more likely to happen. Preventive measures are to make the Natural slate waterproof treatment to reduce the water content inside the Natural slate.

The phenomenon occurs mainly in the Natural slate internal moisture and organic matter content of high parts, it will lead to Natural slate color, reduce the strength of Natural slate and service life. Preventive measures First of all, to do the drainage works to avoid water; coupled with the application of protective agent, so that the Natural slate has a good waterproof. The emergence of moss should be the first tool to eliminate it, and then clean the professional cleaning agent, it is best to do the protection of Natural slate treatment, waterproof and improve the original drainage facilities.