Ready-mixed concrete class B35 (M450)
Concrete M450 or B35 – most often used in the construction of structures subjected to high loads, in the design of buildings for non-special purposes. The high cost of the solution is justified only where it is really necessary to ensure the highest possible indicators of strength, load resistance, density, water tightness, etc.
| Characteristics | Meaning |
| Average strength: | 458 kgf/cm2 or 43 N/mm2 |
| Average density: | 2500-3000 kg/m³ |
| Frost resistance: | F300+ |
| Mobility: | P3-P5 |
| Waterproof: | W8-W14 |
| GOST: | 7473-2010 |
To obtain 1 m³, class B35, you must:
- cement – PC 500, 550, 600 – 450 kg;
- sand according to GOST 8736 – 660 kg;
- crushed stone with a fraction of up to 20 mm – 1.1 tons;
- purified water – 185 l.
Recommended for construction:
- skyscraper foundations
- foundations in the aquatic environment
- subway tunnels
- underground structures
- swimming pools/water parks
- road tunnels
- road / railway bridges
- auto racks
- airfields (upper layer)
