What are the requirements for standardized swimming pool bricks

At present, many people in the market say that the national standard swimming pool brick with the size of 240 * 115mm is stipulated by the state. In fact, the state does not have any documents to explain the concept of national standard swimming pool brick and European standard swimming pool brick, but different grades of swimming pools have different technical requirements. The so-called national standard swimming pool brick is that the domestic production technology was not mature at the beginning, so it is easier to produce this product; In addition, European standard swimming pool tiles are commonly used in commercial swimming pools and Olympic swimming pools in Europe and other countries. At present, 244x119mm high-grade standard swimming pool tiles are basically used in large domestic venues. The requirements of national specifications for standard swimming pool tiles are as follows:

A. Standard swimming pool brick color: the bottom and wall of the competition and training pool shall be light color, basically white, and the lane marking line shall be black or dark blue.

B, pasting process: tile tiles must be used in ceramic tile bonding process with special tile adhesive and sealant, tile glue and sealant: ceramic tile and water sealing agent, penetrate into the inner space of ceramic tiles, and have stronger bonding function. It is suitable for long term immersion without falling off, anti-aging, water proofing, anti-seepage, alkali resistance, weatherability, high temperature resistance and corrosion resistance. It will not cause tile cracking and reduce tile hollowing due to thermal expansion and cold contraction.

C. Thickness: 8mm thick and above ceramic tiles are mostly used in international and domestic formal competition swimming pools. The fracture modulus of such thick ceramic tile is as high as 50MPa and the failure strength is as high as 2000N newtons, which is enough to resist the huge impact pressure in the pool and ensure the long-term service life.

D. Water absorption: the water absorption of swimming pool tiles is 0.28-0.36, and the friction coefficient of floor tiles is greater than 0.5.

E. Anti skid coefficient: the anti-skid of swimming pool bricks is the EU DIN test standard, the turning area is grade B anti-skid, and the pool side and bank are grade C anti-skid. Only when the anti-skid standard is met can the safety of athletes and swimmers be guaranteed.

F. Model and specification: the swimming pool brick is equipped with corresponding ceramic tiles for each different size part of the swimming pool. There are about more than 20 models and specifications to ensure that there is no need to cut during construction.

G. Production mode: the production mode of standard swimming pool tiles is both extrusion and molding, which can produce not only various special-shaped bricks, but also plane bricks with length and width tolerance less than 0.75%. This is very important for the 50m + 0.03m competition pool.