The occurrence of slurry reflux will seriously affect the final effect of the entire decoration project. Therefore, in the actual operation of sandstone, we should start from various details that are prone to invasion of water vapor, and install various details to ensure that the

slurry reflux phenomenon will seriously affect the final effect of the entire decoration project. Therefore, in the actual operation of sandstone , we should start from various details that are prone to invasion of water vapor, and install various details to ensure that the building materials are closely integrated with cement mortar , so as to prevent the occurrence of slurry return.

Yellow wood grain sandstone

On the other hand, the operators should do a good job in cleaning the sandstone. In actual operations, sandstone products often have to go through a very long process of mining, processing, and repeated transportation before delivery, and are very easily contaminated by oil stains, dust and other dirt. During the installation process, the dirt remaining in sandstone product will inevitably affect the combination of building materials and cement mortar, resulting in hollowing. Therefore, it is very necessary to carefully clean the sandstone before installation. Similarly, we should also do a good job in cleaning the building veneer so that we can avoid such incidents.

Red sandstone

On the one hand, the operators should strictly follow the specifications and especially master the water-cement ratio of cement mortar. If the blending is too thin, it is easy to cause the sandstone to hollow due to evaporation of water vapor during subsequent use. At the same time, when laying, the operators should try to apply the compaction strength to the surface of the sandstone as evenly as possible, and ensure that the bonding thickness is as uniform as possible while sandstone and cement mortar are closely combined with the cement mortar. It should also be noted that during the operation process, especially during the decoration of outdoor building decoration, special attention should be paid to waterproofing, and the relevant work should be carried out after the base layer of the decoration (painted layer) is completely dried. This can greatly eliminate the hidden dangers of external adhesive quality.

Purple sandstone

For sandstone finishes contaminated by slurry, we can use a spatula to carefully remove the thin layer of calcium carbonate left on the finishes, carefully clean it with oxalic acid or special cleaning agent, and then wipe the joints with glass glue to achieve the purpose of eradicating slurry. However, before use, you must make small sample blocks to check the effect of the cleaning agent and decide whether to use it. It is also worth mentioning that since soluble alkali or salt substances have penetrated into the sandstone along the capillary pores (those that seep out of the surface of the stone slab can be removed), it is difficult to remove, so for the phenomenon of slurry reflux, the focus should be on prevention.

m yellow sandstone

Of course, we can also reduce the incidence of slurry reflux accidents by choosing low-alkali cement , alkali-free cement, or choosing high-density sandstone products as decorative sandstone. In any case, it is always the most important thing to firmly grasp the quality control in actual construction. In this way, it can not only increase the service life of sandstone finishing project , but also avoid adverse effects on corporate reputation such as rework and rework.

Red sandstone

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