Table 6: Commercially available earth blocks and Auroville public values against building standard and mean values of tests’ results.

Products in Mainstream
Company Product Size (mm) Density (Kg/m3) Compressive Strenght >12 Conductivity (λ)
Grup. PLANA SL (Spain) BTC BIOTERRE CSEB 290x145x95 7.0 N/mm2 0.415 W/mKº 0 ºC
0.546 W/mKº 35 ºC
Ibstock (UK) (Ecoterre™ Earth Bricks) Earth Brick Standard 220x105x67 1940 3.8 N/mm2
Code EB3590
Earth Brick Large 220x105x133 1940 2.9 N/mm2
Code EC3590
Cannabric® (Spain) 300x145x105 1171 5.7 MPa 0.1875 W/mK
Auroville Hollow interlocking block 245 5.85
CSEB class A - 1900-2200 5-7 Mpa 4.6 - 0.81
CSEB class B - 1700 -2000 2-5 Mpa 0.81 -0.93
AENOR CEB Standard
Compressive Strenght>13 BTC 1 1.3 MPa
BTC 3 3 MPa
BTC 5 5 Mpa
Earth Blocks with Hemp shiv
Compressed Earth-Hemp Blocks E 290x140x100 1745 5.27 MPa 0.257
E-HI 290x140x100 1404 3.83 MPa 0.213
E-HII 290x140x100 1162 2.52 MPa 0.139
E-HIII 290x140x100 962 2.21 MPa 0.064