Statement
Metsä Wood
1 (3)
23.7.2020
Material properties of Kerto® LVL S-beam PLUS in Australia Kerto LVL S-beam PLUS material values were tested and analysed by Eurofins Expert Services Oy. The European and ASTM test methods used are in accordance with the Australian test methods according to AS/NZS 4357.2 and AS/NZS 4063.1. The design characteristic values for use with AS 1720.1 are given in the below table. Evaluation of design characteristic values was done according to AS/NZS 4063.2. The stress grade was defined according to AS/NZS 4357.0 and AS 1720.1. The product doesn’t have a third party certificate in Australia yet. Design characteristic property (thickness range 36 – 63 mm) 5th percentile bending strength, parallel to grain, edgewise (cross section depth h = 300 mm)
Value A
55,0 MPa
5th percentile bending strength, parallel to grain, flatwise
B
68,0 MPa
5th percentile tension strength, parallel to grain (cross section width (larger cross-
D
40,0 MPa
5th percentile tension strength, perpendicular to grain, edgewise
E
1,0 MPa
5th percentile compression strength, parallel to grain
G
38,0 MPa
Mean bearing strength, perpendicular to grain, edgewise (2,0 mm deformation criterion)
H
11,5 MPa
Mean bearing strength, perpendicular to grain, flatwise (2,0 mm deformation criterion)
I
6,5 MPa
5th percentile shear strength, parallel to grain, edgewise
J
5,0 MPa
5th percentile shear strength, parallel to grain, flatwise
K
2,3 MPa
Mean apparent modulus of elasticity, parallel to grain
ABDG
14500 MPa
Mean modulus of rigidity, parallel to grain, edgewise
J
725 MPa
Mean modulus of rigidity, parallel to grain, flatwise
K
725 MPa
5th percentile shear at joint strength, edgewise
-
5,6 MPa
5th percentile shear at joint strength, flatwise
-
3,1 MPa
For other cross section depths the design characteristic value is multiplied by 𝑘ℎ = (
300 0,15
)
when h ≥ 90 mm
𝑘ℎ = 1,20
when h < 90 mm
ℎ
sectional dimension) h = 150 mm) For other cross section widths the design characteristic value is multiplied by 𝑘ℎ = (
150 0,15
)
when h ≥ 80 mm
𝑘ℎ = 1,10
when h < 80 mm
ℎ