You are probably confused with the regular grey cement building blocks for perimeter walls. They have a different size (approximately 19x40 cm), and are hollow. Sometimes you can see that these are used without concrete collumns/poles, but only for building a small shed with a light weight roof. But you have to fill up the holes in every block with concrete, and/or reinforce them with iron at the corners.Isan1968 wrote:If my information are right Q Con is the only one for a load bearing building. Mean with Q Con blocks you no need concrete columns. I think that´s why Q Con is more expensive than other products.
AAC blocks are completely different, they are white and are 60x20x7,5 (standard size). They don't weigh much (I think they weigh only something like 1 kilo per block) and break easily. The AAC blocks are only used for their light weight and for insulation.
When there is weight involved, and at windows and door frames, you have to use a steel/concrete construction.
Be aware that when you are building a house, you need to have a proper concrete construction to carry the roof. For a small roof, you need approximately 2000 rooftiles. Standard rooftiles are 4 kilo per piece, so only the weight of the rooftiles will be 8000 kilos. Even basic common sense tells you that you can't build a house without a proper weight bearing construction.
