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Calculation of the composition and proportions of heavy concrete

The units of measurement are cubic meters. Required amount of concrete m3 Crushed stone in concrete
Depending on the purpose of the concrete. Strength grade
Large aggregate in concrete
Fine aggregate in concrete Sand in concrete
For old cement, it is necessary to specify a smaller brand. Cement
Stamp:The draft of the cone (see)
Mobility of the mixture
Amount of cement 273 kg
Cement volume 0.248 m3
Amount of water 190 liters
Granite rubble 1127 kg
Volume Granite rubble 0.817 m3
Quarry sand 699 kg
Volume Quarry sand 0.499 m3
Concrete mix density 2289 kg/m3
Total weight of concrete 2289 kg
Water/Cement 0.7
Proportions Cement:Sand:Rubble:Water 1 : 2.6 : 4.1 : 0.7in kg
Proportions Cement:Sand:Rubble:Water 1 : 2 : 3.3 : 0.765 in volume
Cement 27 $
Granite rubble 11 $
Quarry sand 7 $
Total cost 46 $

Information on the purpose of the calculator

Online calculator for calculation and selection of heavy concrete compositions on cement binder with the use of large and small aggregates. Taking into account plasticizing additives, compaction method and mobility of the concrete mixture. The calculation is approximate, and may differ from the real one, depending on the materials used, their humidity and other characteristics. For a more precise definition of proportions it is necessary to make a trial batch.

To calculate the proportions for one batch in a concrete mixer, it is necessary to specify the quantity of concrete equal to the working volume of the concrete mixer (60-70% of the total).

Brief description of heavy concrete

Reinforced concrete products for construction are made not only on specialized enterprises, but also very often cast directly on the object being built. Without no construction site is complete without concrete. To create a reliable design with the specified technical characteristics use heavy concrete, which in accordance with building regulations has with a volume weight of over 1,800 kg/m3.

Distinctive features of heavy concrete

The production of building materials is carried out in two categories: light and heavy concrete products. They differ significantly in physical and technological characteristics and accordingly, according to the scope of application:

Characteristics of heavy concrete

Calculation and selection of the composition and proportions of heavy concrete is carried out taking into account required characteristics (properties):

Structural features of heavy concrete

The composition and proportions of the components used for heavy concrete directly affect its technological and physical characteristics, therefore, the calculation should be carried out accurately enough, which is more convenient to carry out on an online calculator. For casting high-quality concrete products with suitable technical characteristics, it is necessary take into account a number of features of the manufacture of heavy concrete:

Water is an important calculated ingredient, the addition of which is not permissible in excess of the norm.

It is a mistake to think that adding water can increase the plasticity of concrete without harm its quality, because its uniformity and strength decreases and shrinkage increases. To increase plasticizers are used to improve the plasticity of concrete, which improve the ability to move fillers, which guarantees high-quality filling of the mold and an easy exit from the casting of air with a uniform structure all concrete. Professional construction necessarily uses plasticizers.

The following is a complete list of calculations performed with a brief description of each item.

General information on the results of calculations

C ( ) / 7 8 9 x 4 5 6 + 1 2 3 - . 0 =