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Official Journal of the Japan Wood Research Society

Journal of Wood Science Cover Image

Table 2 List of sample characteristics and the observed shear properties

From: Evaluation of rolling shear modulus and strength of Japanese cedar cross-laminated timber (CLT) laminae

  Lamina width
62 mm 88 mm 112 mm 112 mm additional
N 28 28 28 15
Densitya (kg/m3)
 Mean 402 398 399 389
 SD 35 38 31 35
 CV (%) 9 10 8 9
\(E_{\text{fr}}\) (GPa)
 Mean 7.92 7.65
 SD 0.94 0.67
 CV (%) 12 9
Annual ring geometry
 V (mm)
  Mean 55b 52 52 24
  Min–max 1–134 2–108 1–108 1–72
 H (mm)
  Mean 2b 3 5 13
  Min–max 0–10 0–11 1–22 2–23
\(G_{\text{dsp}}\) (MPa)
 Mean 57 76 95 114
 SD 35 42 44 37
 CV (%) 62 56 47 33
 5% quantile 17 27 40 61
\(G_{\text{str}}\) (MPa)
 Mean 72 91 109 129
 SD 50 53 48 44
 CV (%) 70 59 44 34
 5% quantile 18 29 46 65
fr (MPa)
 Mean 1.54 1.83 2.02 2.24
 SD 0.50 0.46 0.45 0.56
 CV (%) 33 25 22 25
 5% quantile 0.89 1.16 1.37 1.47
\(G_{\text{fem}}\) (MPa)
 Mean 48b 64 73 70
 SD 17b 17 16 22
 CV (%) 34b 27 22 31
  1. aAir-dry density
  2. bN = 27. One sample was unable to determine the pith position