Put bricks and forward, it remains of the small. But there are certain recognized norms and rules that must be taken into account during the construction of any objects. And we definitely need to know a special recipe for preparing concrete for the foundation, have good tenacity and certain properties.
Concrete for the foundation consists of mandatory components: sand, cement and water. Also, gravel, gravel, pebbles, granular scores are added there. In some cases, special modifiers are added. Consistency can be of two types – fluid and tough. The one that is more tough can withstand over the weight of more than 1800 kg per cubic meter.
Recipe for making concrete for the foundation
Tough concrete:
– Portland cement M300-500- 1 part;
– Construction sand – 3.8 parts;
-gravel, gravel – 6.5 parts;
-Water-60-70% of the net weight of cement.
To prepare cement from these components, we first need to mix dry components, and only after that gradually add the necessary volume of water to the resulting mixture.
There is also such a recipe for the preparation of concrete for the foundation, if you need to make light, fluid concrete. We need sand, with the addition of expanded clay or slag, water and cement:
– Expanded clay concrete M 50 consists of cement, expanded clay and water, in relations 250 kg // 100-150 liters
– Halc concrete M 100 is made of cement, slag of granular, water and quartz sand
– Opilc concrete M70, produced from cement, sawdust, water and quartz sand
If you make concrete yourself, then it is necessary to consider that the solution should be as plastic as possible and need as a smaller seal as possible. For a more convenient masonry, we need, as less durable, liquid concrete.
If you need concrete for the foundation, then it is much faster it is kneaded with a concrete mixer. We fill the water into the mechanical concrete mixer and only then interfere in it cement until the solution is formed, apparently similar to liquid clay. If necessary, you can add more water, and again mix for about 3-5 minutes until a thick, homogeneous mass is obtained.
