How to protect wet season?

In many places in China, especially in the south, the rainy season is long, and the stone maintenance construction is generally carried out on the dry plate. Because the rainy season has brought all kinds of trouble to the stone maintenance construction, it is urgent to solve the problem of the rainy season stone maintenance construction, and it is also the problem that the construction units dream of solving.

The principle of stone maintenance and renovation is the chemical reaction of the active ingredients in the curing agent and the ionic water in the surface of the inner wall of stone pores, so that the silicon atom or siloxane can be chemically connected with the stone surface, and the surface of the internal pores of the stone from the outside into a complex network structure. In recent years, with the development of related chemical technology, the synthesis ability of new organosilicon products is also improving.

1.The maintenance and construction of rainy season stone has also been well solved. Now talk about some specific measures and plans for the maintenance and construction of rainy season stone.

2. From the point of stone conservation principle, curing agent is with the stone ion state of water in the reaction, how many for curing agent of stone material surface water in the pores of the influence of the curing reaction is not necessarily, but undertake maintenance construction such as wet stone material relative to the dry stone, its curing reaction is slow, no dry plate curing layer which is formed by the dense.

3. Sometimes the amount of water in the stone internal pores is too high, such as the use of solute curing agent can not enter the internal pores of the stone, also can not achieve the ideal maintenance effect.

4. When refurbishing the exterior wall that is wet by rain, you can wait for the exterior stone surface to be slightly dry with strong permeable emulsion stone curing agent for several times (at least 2 times). And for the wet stone containing water spots, can only be used to wash and bake and brush the method to carry out maintenance treatment.

5. Water spot is the internal stone containing deliquescent salinite, and these deliquescent salinite will absorb a lot of water in the air, and the stone surface has obvious wet marks, no matter how the outside weather change, these wet marks are not dry.

6. When dealing with this kind of plate, because the stone surface is alkaline, acid cleaning agent can be used to clean to neutral, and then the stone surface is forced to dry quickly, and the solvent-based stone curing agent is used for maintenance.

7. If the general stone curing agent is used for curing, the curing reaction is relatively slow (generally 24 hours) and the salt and alkali will continue to return before the curing reaction is completed. The solvent-based rapid solidification stone curing agent curing reaction time is faster, 15-40 minutes can achieve the curing effect, and can effectively contain all kinds of salt and alkali back on the stone surface, so as to achieve long-term prevention and treatment of water spots.

8. Wet stone material relative to the dry stone maintenance construction, has certain defects, curing agent in wet stone inside the pore surface mesh between the protective layer is less than in dry stone inside the pore surface form a protective layer of dense mesh, protective effect is relatively weak, but it can shorten the construction period and improve space utilization in the rainy season, so get the recognition of many construction units