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Polystyrene concrete blocks

Heat-saving blocks made of polystyrene concrete by Semey Cement Plant LLP are an excellent alternative to other building materials such as brick, autoclaved aerated concrete, and foam concrete due to their improved technical characteristics and wide range of applications. The automated production line allows manufacturing blocks of various densities and purposes.

Areas of application of polystyrene concrete:

  • Thermal insulation panels
  • Monolithic thermal insulation of attics and roofs
  • Monolithic thermal insulation of three-layer panels, blocks, and exterior walls
  • Thermal insulation in cavity masonry
  • Hollow elements for prefabricated-monolithic walls
  • Solid blocks or monolithic walls: - non-load-bearing; - self-supporting; - load-bearing

Composition of polystyrene concrete

Main characteristics of polystyrene concrete blocks

Type of polystyrene concreteBlock dimensionsDensity (D), kg/m3Strength class (grade)Thermal conductivity λ, W/(m·oC)Vapor permeability µ, mg/(m·h·Pa)Frost resistance (F)Fire resistance group
Thermal insulation

100*300*600

120*300*600

150*300*600

200*300*600

D 250M 2.5-M3.50,0750,110F 50Г 1
Thermal-structural

100*300*600

120*300*600

150*300*600

200*300*600

D 250

D 350

D 400

M 2.5

B 0,75

B 1,0

0,075

0,095

0,105

0,110

0,09

0,085

F 50

F 75

F 75

Г 1

Г 1

Г 1

Structural-thermal

100*300*600

120*300*600

150*300*600

200*300*600

400*300*600

D 400

D 500

D 600

B 1,0

B 1,5

B 2,0

0,105

0,125

0,145

0,085

0,075

0,068

F 75

F 100

F 150

Г 1

Г 1

Г 1

Comparison of polystyrene concrete blocks with analogues

  POLYSTYRENE CONCRETE D500 FOAM CONCRETE D500 AUTOCLAVED AERATED CONCRETE D500
Compressive strength B 2,0 B2,0 B2,5-3,5
Flexural tensile strength 0,7 Мпа Does not pass tests Does not pass tests
Frost resistance F200 F15 — F50 F15 — F35
Water absorption up to 4 % up to 12 % up to 40 %
Seismic resistance From 9 to 12 points Does not pass tests Does not pass tests
Environmental safety Safe Safe Safe
Biostability High Low Low
Thermal insulation 0,13 Вт/(м*˚С) 0,27 Вт/(м*˚С) 0,17 Вт/(м*˚С)
Sound insulation 61 Дб 55 Дб 52 Дб
Vapor permeability 0,75 мг/(м*ч*Па) 0,15 мг/(м*ч*Па) 0,20 мг/(м*ч*Па)
Combustibility Non-combustible Non-combustible Non-combustible
Crack resistance High Low Medium
Durability ~150 years ~15 — 20 years ~25 — 30 years

Advantages

Polystyrene concrete wall blocks are more efficient than other building materials in many respects

  • Reduction of the cost per 1 sq. m of wall due to material efficiency by 1.5 - 2 times
  • Reduction of labor costs due to low weight by 1.5 times
  • Saving up to 70% of mortar consumption due to precise geometric dimensions and reduced wall thickness
  • Reduction of expenses for purchasing and installing additional insulation and for energy costs during the building’s operation.
  • Increase in the usable interior space of the building — an additional pleasant bonus.
  • Excellent thermal insulation and heat retention — in winter at -20oC, the house loses only 1oC per day
  • Moisture resistance — 5 times higher than that of autoclaved aerated concrete
  • Vapor permeability — walls “breathe,” regulating indoor humidity
  • Frost resistance — withstands temperature fluctuations from -40oC to +75oC
  • High sound insulation — a 20 cm block reduces noise by up to 70 dB
  • Does not rot, is not prone to mold or bacteria growth
  • Precision of block dimensions — deviation no more than 2 - 3 mm
  • Low weight — simplifies transportation, does not overload the foundation, the house does not settle.
  • Ease of processing — easy to drill, saw, and shape into any form.
  • Fire safety — non-combustible material, fire resistance category 1
  • Seismic resistance — from 9 to 12 points
  • Environmental safety — uses food-grade polystyrene, and due to multiple expansion, contains no harmful resins.
  • Suitable for the construction of load-bearing structures
  • Effectively withstands linear loads due to high compressive and flexural tensile strength, does not break during transportation, and has high crack resistance.
  • Service life of at least 150 years