Specifications of thermal blocks

Thermal block

For production of thermal blocks of PSV-S type polystyrol (foaming-self-damping expanded polystyrene foam) of leading world manufacturers from Korea, Germany, and Poland is used. By its physical and mechanical properties this polystyrol outstrips by far domestic equivalents.

PSV-S does not contain chloro-fluocarbons or incompletely halogenated chloro-fluocarbons. It is an environment-friendly material is not harmful for human body used of production of disposable tableware, package for food products and the like.

Expanded polystyrene foam burns under the influence of a quite strong heating source. However, in a house there are always many materials capable of inflame at lower temperatures as compared with expanded polystyrene foam, which is reflected in the table given below.

Besides, to reduce the possibility of accidental inflammation all articles made of polystyrol PSV-S contain flame-proof additives, which are added at production.

Such special additives help to prevent inflammation of the material from small fire sources,  such as, for example, matches or lit up cigarettes. It is an important factor of fire safety.

Name of productNEW!!! Block EPS ordinary EPS 90 (M - 25) "100х50"NEW!!! Block EPS ordinary EPS 120 (M - 35) "100х50"Block EPS ordinary/сorner EPS 90 (M - 25)Block EPS ordinary/сorner EPS 120 (M - 35)Block EPS, folding EPS 90 (M - 35) "50х50"Block EPS, folding          EPS 120 (M - 35)    "100х50"
The actual density of polystyrene foam15,1-16 kg/m321,1-22,0 kg/m315,1-16 kg/m321,1-22,0 kg/m321,1-22,0 kg/m321,1-22,0 kg/m3
Geometric sizes, mm1250*300*2501250*300*2501000х250х250 mm1000х250х250 mm1000х(200-550)х2501000х(200-600)х250
Polystyrene foam wall thickness50 мм + 100 мм50 мм + 100 мм50 mm + 50 mm50 mm + 50 mm50 mm + 50 mm50 mm + 100 mm
Internal distance between expanded polystyrene boards150 мм150 мм150 mm150 mm100 mm - 450 mm100 mm -450 mm
Thermoblock weight0,95 kg1,3 kg0,5 kg0,75 kg1,2 kg1,45 kg
Jumper weight----0,07 kg/pcs0,07 kg/pcs
Concrete consumption0,13 m3/m20,13 m3/m20,13 m3/m20,13 m3/m2.0,1-0,45 m3/m2.0,1-0,45 m3/m2.
Finished wall weight325 kg/m2325 kg/m2325 kg/m2325 kg/m2250 - 1125 kg/m2250 - 1125 kg/m2
Thermal conductivity, λ0,037 W/m∙K0,033 W/m∙K0,037 W/m∙K0,033 W/m∙K0,037 W/m∙K0,033 W/m∙K
Vapor permeability0,032 mg/(m.h.Pa)0,032 mg/(m.h.Pa)0,032 mg/(m.h.Pa)0,032 mg/(m.h.Pa)0,032 mg/(m.h.Pa)0,032 mg/(m.h.Pa)
Water absorption (24 hours)< 2%< 2%< 2%< 2%< 2%< 2%
Self-extinguishing time< 2 sec< 2 sec< 2 sec< 2 sec< 2 sec< 2 sec
Flammability groupГ1Г1Г1Г1Г1Г1
Acoustic insulation46 db46 db46 db46 db46 db46 db

TABLE 1. INFLAMMATION TEMPERATURE OF TRADITIONAL HOUSEHOLD MATERIALS.

 Description

Temperature of inflammation that occurred as a result of a burst of flame, ˚С *

Auto-ignition temperature, ˚С **

Paper

220

230

Pine needles

228-264

260

Cotton

230-266

254

Wool

200

 

PVC

391

454

Polystyrol

345-360

488-496

Expanded polystyrene foam

346

491


* Temperature of inflammation that occurred as a result of a burst of flame is the temperature, at which are formed vapours, which, when mixed with air, may inflame from an external flame source.

 ** Auto-ignition temperature is the temperature at which material smoldering or inflammation occurs without any external flame source.

All organic chemical materials, including plastic, wood and paper, wool and cotton, release various toxic products, including carbon oxide, when burning. At fire it is the most dangerous gas. Burning of the above-listed organic materials may also result in oxygen deficiency. Knowledge of the chemical composition and structure of organic materials provide grounds for understanding reasons of smoke formation and toxic gases at burning. The majority of materials subject to inflammation contain carbon, therefore at burning they oxidize and release carbon dioxide (СО2). If the oxidizing process is not complete enough  carbon oxide (СО) is released. The concentration CO in air equal to 0.3% or 3000 PPM (parts per million)  at exposure to it within  30 minutes is dangerous for human beings. Polystyrol heated to 300 ˚С releases 10 РРМ of carbon oxide only ; up to 400 ˚С –50 РРМ only;  up to 500 ˚С –500 РРМ only; and when heated up to 600 ˚С it releases 1000 РРМ of carbon oxide.

Taking into account the mentioned above parameters, one can easily testify safety of our products, as well as safety if expanded polystyrene foam as a whole.

What are the main technical characteristics of thermoblocks? +
The main characteristics include dimensions, polystyrene density, compressive strength, thermal insulation properties, and the weight of the block.
What are the standard dimensions of thermoblocks? +
The standard dimensions are 250×1000×250 mm, though other variations are available depending on the intended use.
What does the density of PSB-C 35 or PSB-C 25 mean? +
This refers to the grade of polystyrene, which determines its density and strength. PSB-C 35 has higher density and strength, while PSB-C 25 has slightly lower values.
What is the compressive strength of thermoblocks? +
The compressive strength depends on the block grade and can range from 1.5 to 3 MPa, ensuring the reliability of the structure.
What are the thermal insulation properties of thermoblocks? +
Thermoblocks provide a thermal conductivity coefficient of approximately 0.031–0.038 W/(m·K), corresponding to a high level of energy efficiency.
What is the weight of one thermoblock? +
The weight depends on the size and grade of polystyrene, usually ranging from 10 to 15 kg, making installation easier.
Does the type of block affect the service life of the building? +
Yes, high-quality blocks with correct characteristics ensure the durability and stability of the building for over 30-50 years.
What materials are used for reinforcing thermoblocks? +
Reinforcement is typically made of steel or composite materials, which enhance the strength of the structure.
Can thermoblocks be used for construction in different climatic zones? +
Yes, thanks to different grades of polystyrene and structural features, thermoblocks are suitable for various climatic conditions.
Where can I find detailed technical documentation on thermoblocks? +
Valkyria Company provides all necessary technical documentation for its products upon request or on the official website.