How much does a cube of concrete weigh? Main characteristics and composition
A fairly common material at present is concrete. It is used in the production of various works, from ordinary repairs in apartments, to capital construction. At the stage of planning, selection of materials, calculation of their quantity, one has to ask the question: how much does a cube of concrete weigh. Let’s try to figure out how to do it correctly and what this parameter depends on.
General information, concrete characteristics
In fact, the concept of “weight” for this raw material does not have any exact figures. This is due to the fact that the building material of such a plan consists of different components that differ significantly in weight. As components can be used:
- crushed stone;
- pumice stone;
- expanded clay and others.
Under initially equal conditions, the weight of the two solutions can be very different. Even the size of the filler granules affects the mass. The larger the fraction, the smaller the weight, since more voids are formed during mixing.
Concrete grade and concrete class. Table of concrete parameters. Concrete in modern construction. Classification of concrete types. Table of conformity of grades and classes of concrete. Indicators of frost resistance.
At the same time, builders simply need information about how much a cube of concrete weighs. Based on these figures, the scope of the material is determined. It is used in determining the type of foundation for various soils, as well as in calculating other load-bearing structures (walls, floors).
Important! Data on how much a concrete product weighs can be useful not only during construction, but also during the demolition of buildings.
Types of concrete
Depending on the proportion of raw materials and final weight, concretes are divided into several types. There are heavy and extra heavy materials, light and ultralight. Each individual species has its own niche reserved on the market.
Heavy, super-heavy concrete
Heavy concretes containing solid stone rocks are used to create the foundations of buildings, foundations and other similar structures. However, when mixing the mortar, the proportion of its components may vary, so it is almost impossible to say exactly how much a cube of concrete weighs. Usually this figure varies between: 1900-2500 kg/m3.
Particularly heavy materials are used relatively rarely. Hematite, barite and even cast iron and iron ore elements can be added to the composition of such a material. Cement of the highest grades is also used for production, which significantly affects the price of the entire structure. For the construction of private houses and apartments, their use is irrational. Especially heavy options are suitable for the construction of large industrial buildings. The average weight of a cube of superheavy concrete can vary from 2500 to 3000 kg.
Lightweight, ultralight concrete
Such materials differ from their heavyweight counterparts in a more porous texture. Due to this, the weight of the cube is 500 – 1900 kg. Their use is limited to lightweight partitions and walls of small buildings. And how much does an ultralight concrete cube weigh? The use of the following components: vermiculite, perlite, allows you to significantly reduce the weight. Therefore, the ultralight version can weigh less than 500 kg.
Foam concrete or aerated concrete can be attributed to particularly light concretes. The weight reduction in this case occurs due to the volumetric, cellular structure. These are worthy competitors to conventional trains, which have recently become very popular.
Important! The use of aerated concrete is also possible when creating load-bearing structures, provided that the load on them will not be too great.
How much does a cube of concrete weigh?
Some characteristics of concrete can be clarified by opening in SNiP 11-3. The table shows the weight of the material depending on the type of components:
|n/a||A type of concrete||Weight in t/m3|
|2||Foam concrete||0,3 — 1,0|
|3||With the addition of crushed stone||2,4|
|4||With expanded clay sand||0,5 — 1,6|
|5||With quartz sand||0,8 — 1,2|
|6||Tuff||1,2 — 1,6|
|7||With perlite sand||0,8 — 1,0|
|8||Aerated concrete||0,3 — 1,0|
These are approximate figures, but professional builders use them to determine the total weight. It is almost impossible to get more accurate data. Additionally, developers calculate the weight of 1 cubic meter depending on the brand of cement. For heavy materials, this data will look like this:
|n/a||Cement grade||Liquid state (t/m3)||Dry condition (t/m3)|
As you can see, the weight of concrete depends on numerous factors. Therefore, no one can calculate the exact value up to 1 kg. It is quite enough to use approximate figures for the necessary calculations to determine the weight of the future structure.