SOLE LICENSE FOR
MALAYSIA & SINGAPORE

bubbledeck

BUBBLEDECK
INTERNATIONAL

bubbledeck_tree

Tests

BubbleDeck has been tested thoroughly in Germany, Netherlands, Denmark and North America. Results confirm that BubbleDeck behaves like a solid slab in every way. Test reports can be obtained be either visiting the Download page or contacting the BubbleDeck Group.

Shear strength

Test confirms that all concrete in the slab can be taken into account when calculating any type of forces. The results for Bending shear gives values as high as 80% compared to a solid slab of same height.

For Punching shear, tests show values up to 90%.

The theoretical value is 0.65. For safety reason, it is recommended to use a factor of 0.6 compared to values of a solid slab of same height.

Bending strength and Deflection behaviour

A BubbleDeck has the same bending strength as a solid slab of same height. The bending stiffness is 0.9 compared to a solid slab. But since the weight of the slab is only 0.65 of a solid slab, the deflection will be considerably less.

Anchoring

Tests confirm that the balls have no influence on anchoring. Values are exactly as for a solid slab.

Fire

This important aspect has been fully tested. BubbleDeck can be tailored to meet any requirements by optimising the actual concrete cover. The bubbles only slightly influence the pattern of heat transfer through the cover after a certain time and distance from the bottom. Again, BubbleDeck behaves like a solid slab.

Steel
Stress
 
Slab
Utilization
 
Fire Resistance (min)

30 60 90 120 160
Solid Slab 310
0.31 1,395 3,376 3,278 125
BubbleDeck 230
0.11 495 1,758 1,707 65

Classification : Finished deck not flammable.
Fire resistance : Depending on concrete cover.
Smoke : Resistance is 1.5 times the fire resistance.
Depth of smoke < 10m¹ on both sides.
Balls : Balls simply carbonise. No toxic gasses.
Examinations carried out in accordance with ISO 834.

Fire Resistant Report

Opinion & Conclusion

Based on the computerised finite element analysis and the design criteria from AS 3600, it is the opinion of this Division that the BubbleDeck slab systems detailed in the attached drawings and designed to support all imposed loads would be capable of achieving the fire-resistance level (FRL) tabulated below if tested in accordance in accordance with AS 1530.4-2005.

System
Simply Supported
Slab
Cover to bottom
reinforcement (mm)
Continuous
Slab
Cover to bottom
reinforcement (mm)
FRL
BD230 20
25
30
15
15
15
60/60/60
90/90/90
120/120/120
BD285 20
25
30
45
15
15
15
25
60/60/60
90/90/90
120/120/120
180/180/120
BD340 20
25
30
45
55
15
15
15
25
35
60/60/60
90/90/90
120/120/120
180/180/120
240/240/120
BD395 20
25
30
45
55
15
15
15
25
35
60/60/60
90/90/90
120/120/120
180/180/180
240/240/180
BD450 20
25
30
45
55
15
15
15
25
35
60/60/60
60/60/60
90/90/90
120/120/120
180/180/180
240/240/240

Based on the specifications and profile details by BubbleDeck, CSIRO conducted a 2-D finite element analysis on the six concrete slab profiles. Also incorporate in the analysis were the various thickness of concrete cover to the steel reinforcement.

The table above, details the calculated temperature of the steel reinforcement and the average and maximum temperature on the unexpected face of the slab.

Sound

Values for Airborne, Impact sound (Verticial/Horizontal) exists. Below representative values.

test study

This report may only be reproduced by the sponsor in full, without comment, abridgement, alteration or addition; unless otherwise agreed in writing by Fire Science Research Group.

A loadbearing floor system comprising of structural voided flat concrete floor slab when tested with a 5kN/m2 uniformly distributed load in accordance with BS 476: Part 20: 1987 and BS 476: Part 21: 1987, was found to have the following fire resistance:

  • Loadbearing capacity: 121 minutes (test terminated)
  • Integrity: 121 minutes (test terminated)
  • Insulation: 121 minutes (test terminated)
test study

This report may only be reproduced by the sponsor in full, without comment, abridgement, alteration or addition; unless otherwise agreed in writing by Fire Science Research Group.

A loadbearing floor system comprising of structural voided flat concrete floor slab when tested with a 5kN/m2 uniformly distributed load in accordance with BS 476: Part 20: 1987 and BS 476: Part 21: 1987, was found to have the following fire resistance:

  • Loadbearing capacity: 250 minutes (test terminated)
  • Integrity: 250 minutes (test terminated)
  • Insulation: 250 minutes (test terminated)