| Class or grade of polystyrene concrete by compression strength | Strength indicators of items, МРа at least | |
| For compression | For stretching upon bending | |
| B1/D450 | 1,45 | 0,60 |
| B1,5/D450 | 2,16 | 0,65 |
| Grade of polystyrene concrete by average density | Grade by frost-resistance |
| D450 | F35,F50 |
| Grade of polystyrene concrete by average density | Heat conductivity ratio in dry condition under temperature of (25±5)°С,
W/ (m*К), not exceeding |
| D450 | 0,115 |
Forms and Major Dimensions of Polystyrene Concrete Blocks tong-and-grooved:
in millimeters
| Name of product | Major dimensions | ||
| Length, L | Width, B | Thickness, H | |
| Polystyrene concrete heat insulation blocks D450, B0,1-B1,5 F35,F50 | 500±7 | 300±7 | 200±5 |
Note – Upon concurrence of volumes with consumer, output of items of different geometrical dimensions is allowed.
Estimated ratios:
| Grade by density | Estimatedratiosinoperating conditions | |
| Vapor permeability,
(m2·h·Pa)/mg |
||
| D450 | 0,080 |