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BUILDING PHYSICS

DESIGN SYMBOLS OF SIMPROLIT BLOCKS AND THEIR THERMO-SOUND-PHYSICAL PROPERTIES
GENERAL SYMBOLS:

SIMPROLIT BLOCKS HAVE UNIFIED MARKING SYSTEM:

1. Filling of hollow longitudinal gaps, oriented towards the inside of the structure:
   О - without filling;
   B - concrete;
   S - Simprolit polystyrene concrete.
2. Transversal thermo-insulation pads, in the middle of the blocks and sideways:
   О - without transversal thermo-insulation pads;
   P - longitudinal thermo-insulation pad made of polystyrene (styrofoam), its thickness depending on the type of the block;
   S - longitudinal thermo-insulation pad made of Simprolit one-layer (SOP) plate, its thickness depending on the type of the block.
3. Longitudinal thermo-insulation pads, oriented towards the outside of the wall, their thickness (in cm) depending on thermic calculations.
   О - without transversal thermo-insulation pads;
   P (1, 2……) – longitudinal thermo-insulation pad made of polystyrene (styrofoam), thickness (1, 2..) cm;
   S (1, 2……) – longitudinal thermo-insulation pad made of Simprolit one-layer (SOP) plate, thickness (1, 2………) cm..

Example 1: SB25 (B-0-P1) symbolizing 25 cm thick Simprolit block (filled with concrete - without transversal thermo- insulation pads - with 1 cm thick longitudinal thermo-insulation pads made of polystyrene)

Example 2: SBS20 (B-S-P2) symbolizing 20 cm thick type ''S'' Simprolit block (filled with concrete - with transversal thermo insulation pads made of Simprolit one-layer (SOP) plate - with additional 2 cm thick longitudinal thermo-insulation pads made of polystyrene) .

SYMBOLS USED FOR THERMO-SOUND-PHYSICAL PROPERTIES OF SIMPROLIT BLOCKS:

R₀ [=] m² °C/W - Total heat transfer resistance coefficient for facade wall structure
R [=] m² °C/W - Heat transfer resistance coefficient for facade wall elements
R₀^тр [=] m² °C/W - Required total heat transfer resistance coefficient for facade walls

R₀ = R + 1/α_в + 1/α_н R₀^тр
где
α_в [=] W/m² °C - Heat transition coefficient on the inside surface of the facade wall
α_н [=] W/m² °C - Heat transition coefficient on the outside surface of the facade wall
K [=] W/m² °C - Heat transfer coefficient for particular elements of the wall
ΣK [=] W/m² °C - Total heat transfer coefficient for walls made of different elements
K [=]: Summer stability (min. 10 - for walls facing north, 15 - for other walls, 25 - for roofs)
D₂₄ [=] W/(m² °C) - Heat inertia coefficient
t₁ [=] °C (t_i inside temperature, t_e outside temperature) Comfortability
где
t_i= Calculated temperature of the inside air (according to the building design standards and technical norms)
t_{e =} Calculated temperature of the outside air (according to the building design standards and technical norms)
R_w [=] dB: Sound insulation level of the facade wall
q [=] kg/m² - Weight of the wall per m2 (together with filling, insulation pads and double-sided plaster layer)

Remark: in the following review the coefficients related to certain block types are given: without filling, with smallest and highest heat transfer resistance. Other variants are given in the special chapter "Civil engineering physics".