3250/BEA
DYNAVOID
™
United States Patent: #6,289,636
Canadian Patent: #2,282,109
DYNAMIC INCLUSION FOR STRUCTURAL CONCRETE SLABS
DYNAVOID is designed to be used under structural concrete slabs to prevent heaving caused by the upward movement
of underlying ground. It is manufactured from inert closed-cell expanded polystyrene, and is not affected by moisture.
Concrete is placed
0
25
Creep Phase
50
100
Legs Fracture
125
150
Collapse Phase
175
200
Days (Approx.)
INSTALLATION INSTRUCTIONS
DYNAVOID panels are laid on prepared, level ground, with joints tight. The panels are easily cut to fit around protuberances, column
bases, etc. Overlay materials (hardboard, fiberboard, OSB) are strongly recommended to distribute point loads, rebar chars, etc.
DYNAVOID SELECTION CHART
70
60
60
60.1
60.4
70
21.5
25.8
25.7
18.1
20.4
14.4
15.5
10.9
13.2
20
10
9.3
7.4 10.5
6.1 8.7
S LAB LOAD (kPa)
32.5
30
30.5
31.5
24.4
14.4
16.8
11.9
13.6
9.6
10.9
7.7
6.1 8.7
10
20.6
23.6
20.4
20
40
36.5
42.4
42.6
34.6
29.2
30
16.7
S LAB LOAD (k Pa)
40
46.0
50
44.6
50
0
100 mm (4”) PRODUCT CODES
40565
40465
40467
40365
40367
40267
40264
40167
40164
40166
40547
40447
40442
40441
40342
40341
40241
40244
40142
40144
0
150 mm (6”) PRODUCT CODES
DYNAVOID is available in both 100 mm (4”) and 150 mm (6”) thicknesses in order to meet the protective void requirements for virtually
all structural slabs. The green portion of each column indicates the recommended performance range for each DYNAVOID type that
will safely support a structural slab, while permitting void form creep and collapse to occur as a result of sustained sub-grade swell.
Product selection is based on simple slab weight, producing a pressure of 23.6 kPa per metre thickness. EG: a 750 mm slab will
produce .75 X 23.6 = 17.7 kPa pressure. For slab thickness measured in inches, multiply inches by 0.6 to obtain slab load in kPa.
Note: The performance range for each type can be adjusted by adding downward restraint provided by foundations and/or
superstructure. Contact Beaver’s technical service for information.
SIZES/PACKAGING
7-26318-TWP RD 531A
Acheson, Alberta, Canada T7X 5A3
Phone (780) 962-4433
Fax: (780) 962-4640
Toll Free: (888) 453-5961
www.beaverplastics.com
PRODUCT SIZE
4” X 4’ X 4’
100x1220x1220 mm
6” X 4’ X 4’
150x1220x1220 mm
PCS/BUNDLE
10
10
6
6
™ REGISTERED TRADEMARK OF BEAVER PLASTICS LTD.
AREA/BDLE
BUNDLE SIZE
160 SQ. FT.
14.8 SQ. M.
96 SQ. FT.
8.9 SQ. M.
24” X 4’ X 4’
610x1220x1220 mm
24” X 4’ X 4’
610x1220x1220 mm
REV: 14.10.16
Printed in Canada