Those who have their own dachas or private houses know how important concrete mortar is for any construction work, and it is especially important to know how to calculate the proportions of concrete in buckets. This is the basis of everything. Many people order mortar from construction organizations, and then struggle with the question of “when will it be delivered?” and “what quality will the mixture be?” Luckily, we'll tell you how to make high-quality concrete for your foundation yourself!
For small areas, it is better to measure the volume of components manually in buckets. By acting this way, you will spend less time on the process itself, and the solution will be of higher quality. How many buckets of components are needed to make concrete is calculated depending on the amount of work. All components for concrete composition have different amounts of capacity per bucket:
- cement 15 kg;
- sand 19 kg;
- crushed stone 17.5 kg.
Prepare a deep trough of mortar and use shovels to mix by hand.
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The concrete recipe is used in almost all areas of construction: on foundations, wall ceilings, and when cladding both internal and external surfaces of buildings.
It is advisable to make concrete mortar using buckets in the following cases:
- No large-scale construction work is planned.
- Filling the desired area is done in stages.
- It is impossible to transport special equipment to the work site.
- A large distance from objects that can provide ready-mixed concrete.
Proportions of components per 1m3 of concrete, using buckets:
- 2 buckets of cement;
- 5 buckets of sand;
- 9 buckets of crushed stone.
Having prepared the necessary components, we begin mixing the concrete. The ratio of water and cement is 1 to 2, that is, water will require 50 percent of the amount of cement. It is better to pour it at the end, after adding all the ingredients.
It is recommended to produce the solution before starting work and in the amount that you plan to use within 2 hours.
The most popular brands of concrete and their purposes
- Concrete grade M100 is used in the initial stages of working with the foundation.
- M150 is a little stronger, it is used to fill screeds.
- M200 is the most common for pouring foundations and constructing reinforced concrete products.
- M250 - for creating small floor slabs and sports. platforms.
- M350 - recommended for the foundation of large-scale buildings.
- M450 - applicable for the construction of dams, dams, subways, etc.
Forced action concrete mixer and gravity unit
There are no fundamental differences in the order of mixing the solution in these machines. The only difference is in the operating principle of the units. The forced one actively mixes with blades, and the gravitational one uses the rotation of the drum itself and the force of universal gravity.
The main thing here is to take the right time. The forced one does its job 2 times faster.
The forced-type concrete mixer has different sizes and modifications:
- rotary;
- cascade:
- planetary.
Such units can operate continuously, when the components can be loaded and the finished mixture can be unloaded at the same time. You can safely buy such equipment if you want to open a mini concrete production plant. But more often these installations are bulky and are used in production.
Proportions of components for the foundation
Even the most experienced builders and concrete workers will not be able to solve the problem: “What volume of components should be taken to make the most durable mortar?” As for concrete production, everything is approximate. The most significant factors that influence the quantity are humidity and fraction size.
Know the recommended ratios when using buckets and stick to them.
Proportion table for M400 concrete, sand and gravel:
