May I ask what the anti-corrosion specifications for pool tanks are?

I also found some professional discussions on the anti-corrosion treatment of pool surfaces online; I learned about methods such as \"one layer of fabric with three coats of paint\", \"two layers of fabric with four coats of paint\", and \"three layers of fabric with five coats of paint\". However, I couldn’t find any authoritative technical specifications or industry standards. My intention in asking this question is to find out where these anti-corrosion techniques originate, so that they can be found in relevant specifications or standards, as well as to understand under what circumstances each of these methods should be used

I’ve forgotten which specific standard it is. Since it’s a sludge thickening tank for pre-treatment emissions, the first thing to determine is the medium inside it. Then there’s the temperature. What is the substrate? For a typical tank like this, using 5 layers of lining is sufficient. The number of layers of lining and the type of coating used depend on factors such as temperature and the medium involved.

This post was last edited by tl1380843633 on 2009-12-16 00:34. It should be implemented in accordance with the \"Code for Corrosion Prevention Design of Industrial Buildings GB 50046-2008\". 6.1.5 The protective measures for the inner surfaces of tanks and basins should comply with the provisions in Table 6.1.5, as well as meet the following requirements: 6.1.5.1 For building materials, acid-resistant bricks and acid-resistant stones with a thickness of not less than 20 mm should be used. The masonry materials should be water glass-based materials, resin-based materials, or polymer cement mortar; asphalt-based materials shall not be used. Resin mortar is recommended as the grouting material. 6.1.5.2 Water glass concrete should preferably be made from dense sodium water glass or potassium water glass, with a thickness of not less than 80 mm. 6.1.5.3 When using block materials and water glass concrete for the lining, a separation layer shall be provided, and its material should be fiberglass (with 2–3 layers of fabric). When the thickness of the surface layer is greater than 60 mm, membrane materials can be used, but bituminous paper-backed asphalt shingles should not be used. 6.1.5.4 For tanks and pools protected with coatings or fiberglass, a layer of blocks or resin mortar should be added to the areas subject to erosion and wear. 6.1.5.5 The construction of the lining in the expansion joint areas of wastewater treatment tanks shall meet the requirements for deformation.

Are the numbers provided by Banzhu incorrect? I also have the \"Code for Corrosion Protection Design of Industrial Buildings GB 50046-2008\", but it states that the thickness of the building materials should be no less than 30 mm.

The last edit to this post was made by tl1380843633 on 2009-12-18 at 23:37. What the person above mentioned refers to is item 1 in version 6.1.5; it pertains to the use of block materials for lining； For fiberglass lining, take another look at point 3! And it shall be carried out in accordance with the provisions of Table 6.1.5. What I cited on the fourth floor was the \"Code for Corrosion Prevention Design of Industrial Buildings GB 50046-95\"; the new standard, \"Code for Corrosion Prevention Design of Industrial Buildings GB 50046-2008\", no longer specifies the number of floors, only the thickness. If it is necessary to design the number of layers, it can also be done in accordance with the \"Code for Corrosion Prevention Design of Industrial Buildings GB 50046-95\".

Thank you very much. Found GB50046 in the forum and studied it a bit; it was very informative!

I recommend that you refer to the \"GB50046-2008 Code for Corrosion Protection Design of Industrial Buildings\" for your design; it contains detailed descriptions.