What should we build a house!
The exclamation mark at the end of this sentence is only relevant in a well-known song. It is synonymous with the phrase " very simple ." And if the house is built real, not song? Of real bricks, real timber, real cement, which have a real price? Then the song exclamation mark will turn into a preoccupied interrogative. And the emphasis will shift from the word “ what ” to the word “ worth ”. And the costs that are hidden behind this word are determined not only by the building materials market, but also by our knowledge of construction matters.
Mathematics is an exact science, but bricks are different, and, therefore, their number in one cube is different. Therefore, to calculate how many bricks are in the masonry cube , you should consider:
- brick size ;
- type of masonry ;
- the thickness of the seams.
We begin to count by putting checkmarks in front of these three unknowns. And to make sure that we can get several answers to one question about how many bricks are in the masonry cube, we will compare this number for different brick sizes.
Size, quantity in m 3
1 = 512/394
1.5 = 378/302
2 = 242/200
Note. The quantity designation reads as follows: “without masonry / taking into account masonry”.
Note that in the formulation of the problem "how many bricks are in the masonry cube", an inaccuracy is made, which will lead to confusion in the calculations. In fact, no one will begin to build a brick cube in the literal sense of the word! There will be a house, a garage, something else, but not an ancient fortress, with walls a meter thick . The thickest wall masonry today is two and a half bricks. And there are two, one and a half, one brick and half a brick. We will determine these values, then we will consider, but not in cubes, but in square meters. Below are examples. But why then you need to know how many bricks in one cube of masonry, if the walls are measured in square meters? The logic is simple - we build in m 2 , we buy in m 3 . So how to count? The algorithm is approximately like this:
1) find out the total area:
a) external walls;
b) internal walls;
2) determined with the size of the brick and the type of seam in the masonry;
3) determined with the width of the masonry:
a) external walls;
b) internal walls;
4) calculate the number of bricks separately:
a) for external walls;
b) for internal;
5) display the total amount;
6) divide the resulting figure by the already known number of bricks in the cube;
7) with the result we go to the store - this is the right amount of brick cubes.
If you wish, you can add one more item - "multiply by the price of one cube" to know how much money to take. And you need to take with a margin of an additional 15% of the bricks that make up the battle and marriage. It was already said above how many bricks there are in a cube of masonry. The following are some numbers per square meter. This is incomplete information, we will just show for comparison how the number of bricks varies depending on its size and accounting / neglecting the seam. When calculating these nuances should be taken into account.
Example 1. For the same masonry in 1 brick with different sizes:
Size - quantity (excluding / including seams)
1 = 128/102
1.5 = 95/78
2 = 60/52
Example 2. For different masonry with the same brick size (1):
Type of masonry - quantity (excluding / including seams)
0.5 = 61/51
1 = 128/102
1.5 = 189/153
As you can see, the larger the size, the smaller the quantity, but the price will be higher. So the losses due to inaccurate calculations are significant. Cost overruns can be minimized by not only calculating everything accurately. If the brickwork is two and a half bricks, then broken brick can also be used. There will be an overrun of the solution, but it is cheaper.
Everyone considered it, but it's too early to put a point. For construction, more wood is required, or rather, materials from wood. Timber, boards. So, it is necessary to calculate the amount of timber in the cube. The following table is intended to facilitate this process.
| Length (m) | Cross section (mm) | Count in m3 |
50 * 100 | 4,5 | 44 (0,023) |
6 | 33 (0,030) |
50 * 150 | 4,5 | 30 (0,034) |
6 | 22 (0,045) |
100 * 100 | 4,5 | 22 (0,045) |
6 | 17 (0,060) |
100 * 150 | 4,5 | 15 (0,068) |
6 | 11 (0,090) |
150 * 150 | 4,5 | 10 (0,101) |
6 | 7 (0.135) |
100 * 200 | 4,5 | 11 (0,090) |
6 | 8 (0,120) |
60 * 120 | 4,5 | 31 (0,032) |
6 | 23 (0,043) |
Explanation of the table: the numbers in parentheses indicate the volume of one
oh unit of timber.
Well, now you can sing the line with which you started the conversation, not with a question mark, but with an exclamation mark!