Online Calculation Of Materials For Floor Screed, Calculator Of The Ratio Of Cement To Sand

2023 Author: Philip Bishop | [email protected]. Last modified: 2023-08-25 07:54

Before installing the flooring, it is necessary to level all the floors in the apartment or room. For floor screed, cement-sand mortar is mainly used. To save the budget, it is necessary to correctly and accurately calculate the required amount of materials for the future mortar for the floor screed. The calculation can be done using the online floor screed calculator.

The values are in meters, note the thickness. Specify in this format (0.00 meters)

Room width
Room length
Screed height

Cement	kg.
Sand	kg.
Water	l.

Calculators from wpcalc.com

An example of calculating the amount of required materials.

To calculate the required volume of solution, we use the formula:

S × h = V

Where,

S is the area of the room;
H is the height of the required screed layer;
V is the required volume of solution.

Using the above formula, we can calculate the required dry volume of the mixture. An important point in calculating the required volume of solution is the fact that the volume of a solution of cement, sand and water is less than the total volume of all ingredients. So from one kilogram of cement-sand mixture, after adding water, 0.7 kg is obtained. solution. Thus, we obtain the formula for the volume of the required solution:

Dry mix volume / 0.7 = Required solution volume

Cement and sand are sold in bags per kilogram, so we need to calculate the amount of ingredients in kilograms.

Based on the fact that:

one cubic meter of cement-sand mixture weighs 1540 kg
there is 1300 kg of substance in a cube of cement
in a cube of sand - 1625 kg
The ratio of cement to sand in a solution is 1 to 3
Generalized formulas for individual ingredients can be drawn up.

M c = (S × h / 0.7) × 325

M p = (S × h / 0.7) × 1220

Where,

M c - the mass of the required cement;
M p - the mass of the required sand;
S is the surface area;
h - layer height.

The bottom line. Using an online floor screed calculator in practice, you can avoid additional expenses and find out the amount of material.

Volume ratio table for different grades of concrete

Concrete, brand

Cement / sand / crushed stone ratio
cement M 400	cement M 500
100	1.0: 4.0: 6.0	1.0: 5.2: 7.0
150	1.0: 3.1: 5.0	1.0: 4.0: 5.8
200	1.0: 2.4: 4.1	1.0: 3.1: 4.8
250	1.0: 1.8: 3.3	1.0: 2.4: 3.9
300	1.0: 1.6: 3.2	1.0: 2.1: 3.6
400	1.0: 1.1: 2.5	1.0: 1.4: 2.7
450	1.0: 1.0: 2.1	1.0: 1.2: 2.4