BETONYP FISICHE

3.1 MAIN PROPERTIES OF Betonyp ®

3.101 Sizes of Betonyp® building boards

Standard lenght: 3200 mm, 2800 mm, 2600

Standard width: 1250 mm

Plates size: 590 x 590 mm.

Standard thickness: 8,10,12,14,16,18,20,24,

28,30,32,34,36,38,40 mm

On special request, the plates with a thickness different than the ones mentioned above, can be provided in a thickness of 8 mm and 40 mm.

List 2.

Quantity per unit area and thickness tolerance as a function of thickness of the Betonyp ® board.
To smooth construction boards, tolerance compared to the named thickness is uniform + -0.3 mm.

3.102 Density of Betonyp ® building boards.

In accordance with the standards EN634-2 article 2, the density of the boards should be above 1000 kg / m (3)According to the relevant test results, at a temperature of 20 ° C, relative humidity of 50-60% and a moisture content of 9% for tables, the density of the Betonyp ® boards is: § = 1450 + -100 kg / m
For static calculations - and for security reasons - it is recommended to increase or decrease the maximum density value of 20%

3.103 Moisture content in the transport

Similar to wood, in natural conditions, the Betonyp® building boards acquire a balanced moisture content depending on temperature and humidity.

The moisture content in accordance with specific standards MSZ EN 634-2 is:
u = 9 + -3%
reached in hydroscopic equilibrium corresponding to a temperature of 20 ° C and humidity equal to 50-60%.

3.104 Equilibrium moisture content than air humidity

Figure 3.

Average moisture content of balanced Betonyp ®, as a function of humidity, T = 20 ° C
At a temperature of 20 ° C and relative humidity of 35%, the moisture content is balanced by 7%.
At a temperature of 20 ° C and relative humidity of 60%, the moisture content is balanced by 12%.
At a temperature of 20 ° C and relative humidity of 90%, the moisture content is balanced by 19%.

3.105 Water and vapour absorption of the building boards Betonyp ®

It's well known that moisture plays a significant role in seasoning wood's process.
It's important, therefore, accurately establishing rules for absorption and transmission of' water.

3.105.1 Absorption of Betonyp ® construction boards

3.105.11 Absorption of water vapor
in atmospheres with high humidity and temperature.
T = 40 ° C § = 100% (tropical climate)

Figure 4.

Absorption of steam of Betonyp ® building panels

(T = 40 c°; § = 100%)

Figure 4. momentarily shows the average moisture content of the Betonyp ® boards construction in dry conditions as a function of time.
The state of momentary absorption of cement attached to the particle board showing the deviation. This deviation is caused by uneven and partially organic composition of the board, and at the same time, the difference in density. Within individual samples, its components with a 'high and show a minimum density of the respective rates of absorption, while the minimum and maximum u values obtained are higher for those elements.

3.105.12 Absorption in atmospheric spaces

t = 20+- 2 C°, § = 45 +- 5%

Figure. 5
Absorption of the Betonyp ® table , saturated in exposure to rain later in the dry areas of atmosphere. (t = 20 + - 2 ° C, § = 45 + - 5%)

Figure 5 and 6 show the average of momentary moisture content of concrete attached to the chipboard all'esporsi bathe in the rain and evaporation, respectively, until reaching a dry state as a function of time.
Note that the maximum water absorption of the table, again treated, has changed. The moisture content is balanced for that atmosphere would be about 7%. The figures show that even the board treated again reached that value, despite the time available for absorption seemed sufficient.

Figure 6.
Absorption of the Betonyp ® table in an environment of saturated steam, then dry in terms of atmosphere. (t = 20 +-2C °, § = 45 + -5%)

3.105.2 Water absorption exposing the table in the rain

Water and air temperature t = 14 +- 0,5 C°,

water pressure p = 2 bar

Figure 7.
Absorption of a Betonyp ® board totally exposed dry in the rain. (t = 14 + -0.5 ° C, p = 2 bar).

Figure 7 shows the average of momentary moisture content of the table totally exposed dry in the rain, as a function of time.

Moisture resistance of the Betonyp ® table shows good results.

3.105.3 Moisture released of Betonyp ® building boards

3.105.31 Dehumidification in atmosphere

t = 20+-2C°, § = 50+-5%

Figure 8.
Issue Table of moisture Betonyp ® building boards, saturated by the absorption of water vapor in atmospheric spaces.

( t = 20+-2C°, § = 50+-5%)

Figure 9.
Desorption of the Betonyp ® construction tables saturated in exposure at the rain weather (t = 20+-2C°, § = 50+-5%)

Figures 8 and 9 shows the average of momentary moisture content of the cement combined with chipboard, wet from saturation, from absorption of water vapor and exposure to rain, respectively, as a function of time.

3.105.32 Release of moisture absorbed by the table in a state of equilibrium in atmospheric spaces up to states of total dryness. (t= 102C°, § = 0%)

Figure 10.

Release of moisture absorbed by the Betonyp ® table , saturated absorption of water vapor and in a state of balance from atmospheric spaces up to a state of total dryness.

(t= 102C°, § =0%)

Figure 11.

Release of moisture absorbed by the Betonyp ® table , saturated in exposure at the rain and in a state of equilibrium in atmospheric spaces up to a state of total dryness. (t= 102C°, § =0%).

The figures 10 and 11 show the average of momentary moisture content of the Betonyp ® boards construction wet absorption of water vapor and exposure to rain up to saturation, then dry state of equilibrium in atmospheric spaces, depending on time.

3.105.4 Ending...

it's claimed that the total absorption of water by Betonyp ® is not greater than 35% moisture even permanent. It's independent by the level of humidity.

Pre-treatment of the board significantly affects the absorption characteristics.

3.106 Water absorption of cement attached to chipboard through saturation.

Figure 12 shows the temporary average moisture content of the Betonyp ® tables was completely dry as a function of time.

The underlying follows a logarithmic curve, showing clearly the laws of diffusion.

It is said that initially the water uptake increases drastically, reaching a maximum value of moisture, after about 50 hours of saturation.

There has been a significant change in the moisture content after the time of saturation.

Medium value by u. max. was about 27%.

Fig. 12 Absorption of watre of Betonyp ® table totally dry through the saturation

3.107 Bulge thickness

When making tests on the cement particle board than the standard combined with the MSZ EN 317 thickness swelling after 24 hours of saturation will be about 1.5%.

3.108 Deformation resistance

The two floors of cement attached to chipboard are often subject to asymmetric climate weights. It was conducted a test on the following excessive conditions: the upper part of a test sample, loosely placed in a water bath, it has deteriorated with the contact of the outside air at a temperature of T = 20 + - 2 ° C and relative humidity of § = 65 + - 5%. Figure 13 shows the spread points that measure deformation as a function of time.

Figure 13. Measurement points located as a result of climate asymmetrical weight plotted versus time.

Figure 14. isometric drawing of most evident deformation

Deformation can be seen most dramatically in the first 3 days, while the deformation more evident in the 22nd day.

In a further observation, the deformation is insignificant.

Figure 14 shows the isometric drawing of the deformation most eminent.

3.109 Thermodynamic characteristics of Betonyp ® construction tables

List 3. shows the building characteristics of cement attached to chipboard

List 4. shows the building characteristics of cement attached to chipboard, according with standard DIN 4108.

List 5. values of thermal resistance of the tables with different characteristics and thickness.

List 6. Coefficient of heat transmission of Betonyp ® building panels with different thickness.

3.110 Characteristics of fire resistance of Betonyp ® building panels

Figure 15 shows the core values provided to the fire resistance of cement combined with chipboard on the rigid wood structure

The essential value of fire resistance depends largely on the composition and location of the structure built. Core values shown in Figure 15, are directed only at tables vertically placed.

For each structure just created, the fundamental value of fire resistance must be checked verifying it in accordance with the standard values.

Subject to the fire resistant tables, the specific standards change from country to country; for the country of production, national characteristics are as follows:

· According to DIN 4102 Betonyp ® boards are "B1" fire resistant

· Austrian standard O NORM B 3800 defines Betonyp ® tables construction, as combustible material class "A" (Versuchs-und Forschungsanstalt der Stadt Wien, MA39 F-test report No. 367/78 /

8 mm TH = ora 0,07

10 mm TH = ora 0,15

12 mm TH = ora 0,21

14 mm TH = ora 0,27

16 mm TH = ora 0,31

18 mm TH = ora 0,35

20 mm TH = ora 0,38

22 mm TH = ora 0,41

24 mm TH = ora 0,44

28 mm TH = ora 0,49

40 mm TH = ora 0,61

Figure 15. Fire resistance value as a function of thickness of Betonyp ® building panels

3.111 Soundproofing by Betonyp ® building boards

The product itself is highly indicative targets for noise reduction. Good sound insulation can only be realized through a correct use of various sound-absorbing materials, any material breaks down certain frequencies.

List 7.

Sound insulation of Betonyp ® tables according to thickness
R = average number of sound insulation (piece) Concrete - 150 mm, 480 kg / m (q)
Solid Brick - 270 mm, 360 kg / m (q)
Empty chipboard with sand
Plaster solid table - 80 mm, 80 kg / m (q)

3.112 Rough surface, quality surface

The quality of tables surface is mainly determined by the degree of roughness. The roughness is the average value of large and small protrusions or dents on the surface, compared with a theoretical surface. About the Betonyp ® boards, controlled by a method of air pressure, the value of the rough surface is about 120 - 150 microns .*