Some questions related to concrete are particularly popular among both facility owners and constructors. We decided to collect all the answers in one article.
The weight of a cubic metre of concrete depends on the fillers used in its composition. If we distinguish this material by its specific gravity, there are four categories of concrete:
- extra lightweight (one cube weighs no more than 500 kg);
- lightweight(one cubic metre weighs 500-1800 kg);
- heavy (one cubic metre weighs 1800-2500 kg);
- extra heavy (one cubic metre weighs 2500-3000 kg).
This material consists of cement, sand and gravel. The proportions are calculated depending on the grade of concrete to be produced and the purpose for which it is being used. For example, heavyweight concrete consists of 1 part of cement, 3 parts of and 5 parts of crushed stone.
Truck mounted mixers vary greatly in their capacity. Their volume can vary from 2 cubic metres and up to 15 cubic metres. Most often, truck mounted concrete mixers with a mixer volume of 5-9 cubic metres are used. In any case, you should get information about the volume of their mixers at the point of sale of concrete.
Also, keep in mind that if the construction site is too far from the plant, the concrete will most likely be delivered to you in a dry state.And it will be diluted with water only upon arrival at the construction site.This is to ensure that the material does not lose its quality on the way to the site. In order to avoid issues due to the fact that the diluted concrete will not fit into the concrete mixer, when calculating, start from the volume of the material in finished form.
To create a strip foundation*, you need to calculate the volume by multiplying the height, length and width of the future strip. This yields the amount of concrete required to create one strip. To calculate the volume required to pour the entire foundation, multiply the amount of concrete already calculated by the number of strips in the base.
The volume of concrete required to create a slab foundation is calculated in the same way. You just need to find the volume of one slab rather than a strip. The resulting value is then multiplied by the number of slabs.
A strip foundation is usually cheaper than a slab foundation, because it requires less material.
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