Ready-mixed concrete class B22.5 (M300)
M300 or B22.5 concrete is the most popular type of concrete used in civil engineering. 80% of all foundations of private buildings are made by this particular brand. This concrete was even used for the foundation of five-story buildings in general construction. In the price category, quality among all heavy concretes is the best.
| Characteristics | Meaning |
| Average strength: | 295 kgf/cm2 or 28.9 N/mm2 |
| Average density: | 1850-2500 kg/m³ |
| Frost resistance: | F150-F200 |
| Mobility: | P4 |
| Waterproof: | W8-W10 |
| GOST: | 7473-2010 |
1 m³, B22.5 sinfini olish uchun sizga quyidagilar kerak:
- Cement brand 400, 500 – 382 kg;
- Purified water with pH 4-12.5 – 220 liters;
- Filler (crushed stone, gravel, limestone) – 1.08 tons;
- Sand without impurities (2-2.5 sizes) – 705 kg.
Recommended for construction:
- foundations of buildings (up to 3 floors)
- monolithic foundations
- strip foundations
- slab foundations
- pile foundation
- bored piles
- pouring beams crossbars
- interior load-bearing walls
