What is the standard size of block bricks?
1, block bricks are divided into small, medium and large block bricks according to their size. In these three series of block bricks, the height of small block bricks is generally between 1 15-380mm, the height of medium block bricks is generally between 380-980mm, and the height of large block bricks is above 980mm, among which the most used is small block bricks.
2. From the appearance and shape, block bricks can be divided into hollow block bricks and solid block bricks. Hollow block bricks can be designed flexibly according to the needs of brick use, and can be designed into three types: multi-row flat holes, single-row round holes and single-row square holes, among which multi-row flat holes have better thermal insulation effect.
3. Commonly used block bricks include fly ash small hollow block, lightweight aggregate concrete small hollow block, decorative concrete small hollow block and ordinary concrete. The water absorption rate of block brick is relatively high, so it can't be soaked in water for a long time, and it can't be used in building parts with alternating dry and wet conditions.
How to choose block bricks?
1, see whether the factory certificate of the block brick is consistent with the physical object and the testing center, and at the same time see whether the factory certificate has the seal of the testing department and the signature of relevant personnel. Moreover, all the bricks sold in the market now have test reports, which indicate the test number and relevant information of the laboratory. If the merchant can't provide such information, it means that the product has quality problems.
2. When buying block bricks, be sure to carefully check the measured specifications and values in the block brick test report. In addition, the commodity inspection may also be required to show the as-built drawings, negotiation records, quality acceptance records, technical disclosure, construction organization design and other relevant certificates of block bricks. Not only that, but also pay attention to whether the test report and certificate are consistent with the actual parts and projects, and also correspond to the construction materials one by one, so as to ensure the quality of block bricks.