Today construction of buildings from foam concrete blocks gains ground. And it is quite explainable. At rather low cost, foam concrete blocks managed to combine in themselves the best qualities two others, having success, construction materials - tree and concrete. Rather small weight and simplicity of processing do foam concrete blocks by one of the most popular materials at country construction. How not to be mistaken with the choice upon purchase of this material?
Instruction
1. Pay attention to the foam concrete block price. Too low price demonstrates, as a rule, bad quality of material.
2. Try to define quality of foam concrete block of vizualnon walls there should not be stains from lubricant. Color of walls should not differ from color of internal part of foam concrete block. Make sure of lack of cracks which availability can demonstrate to violation of the mode of drying of this material that can lead to its rather fast destruction.
3. Study structure penoblokasledut to consider that air bubbles in foam concrete blocks are always separated from each other. Thanks to such structure, foam concrete block possesses good indicators of heat conductivity and does not absorb moisture. Also it is necessary to know that all bubbles have to have spherical shape, and foam concrete block - uniform structure. Heterogeneity of structure can demonstrate production of this material on molding technologies and as a result - its poor quality. Availability of bubbles of oval form and heterogeneity of structure of foam concrete block can negatively affect durabilities of the built building.
4. Pay attention to color the penoblokatsvetovy palette of this material can vary from light gray to dark gray tones. White color of blocks can mean that before you the gas-silicate block or that at production of the block number of technology violations has been allowed.
5. Check the accuracy of the stated sizes. Make sure that all surfaces of foam concrete block equal. For this purpose it is necessary to lay foam concrete blocks at each other. Try to shake foam concrete blocks. Blocks of appropriate quality will not be shaken since permissible deviation from geometry makes only 2 mm, and at such deviation the blocks have to adjoin densely to each other.
6. Make check of material on prochnostvozmita small piece of foam concrete block and try to pound it in palms. If material has crumbled with little effort, means production technique is violated. Most likely, the producer in attempts to save used too large amount of water at production of this material.
7. Specify density of foam concrete block at the seller and, whenever possible, weigh it. Standard foam concrete block at the density of 600 kg/m3 and sizes 200х300х600 has to weigh 21.6 kg.