Auroville_Satprem_pt1.pdf

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Gradation (Grain size Distribution) 1. B. DATA ON CSEB RANGE OF SOILS PROPERTIES FOR CSEB � The soil quality influences the choice of stabiliser - Cement stabilisation requires more sandy soil - Lime stabilization needs more clayey soils. � Best soils for cement stabilisation are considered to have these proportions of components: 15 % Gravel + 50 % Sand + 15 % Silt + 20 % Clay Best soils for lime stabilisation are considered to have these proportions of components: 15 % Gravel + 30 % Sand + 20 % Silt + 35 % Clay Tests Cement stabilization Lime stabilization Gravel (20 – 2 mm) 0 to 30 % (Ideal= 15%) 0 to 30 % (Ideal= 15%) Sand (2 – 0.06 mm) 30 to 60 % (Ideal= 50%) 20 to 40 % (Ideal= 30%) Silt (0.06 – 0.002 mm) 10 to 25 % (Ideal= 15%) 15 to 30 % (Ideal= 20%) Clay (< 0.002 mm) 10 to 30 % (Ideal= 20 %) 30 to 50 % (Ideal= 35%) Liquid limit (W Plasticity L) Plasticity Index (IP) Dry volumic mass (Kg/m 20 to 30 % 10 to 20 % 25 to 50 % 20 to 30 % 3 ) Should only be known Should only be known Proctor Should only be known Should only be known Sulphate content (based on SO4) Less than 2 % Less than 0.5 % Chlorate content (based on Cl) Less than 1 % Less than 0.5 % Organic matter (Humus) Less than 1 % Less than 2 % 26
1. C. DISASTER RESISTANCE WITH CSEB Hollow Interlocking CSEB by the Auram press 3000 Auram Block 295 Auram Press 3000 Auram Block 245 Auram Blocks 245 Auram Blocks 295 (295 x 145 x 95 mm) Auram Blocks 245 (245 x 245 x 95 mm) �Keys to increase the resistance to shear �Hollow blocks to create a reinforced masonry 27
Page 1 and 2: COMPRESSED STABILIZED EARTH BLOCKS
Page 3 and 4: INTRODUCTION THE AUROVILLE EARTH IN
Page 5 and 6: The Auroville Earth Institute attem
Page 7 and 8: Actions in 30 countries: 1983: Tuni
Page 9 and 10: Office of the Auroville Earth Insti
Page 11 and 12: INTRODUCTION MANAGEMENT OF NATURAL
Page 13 and 14: Wastewater treatment Underground ra
Page 15 and 16: AVEI has trained thousands of peopl
Page 17 and 18: The Auram press 3000 is a multi mou
Page 19: Compressed Stabilised Earth Blocks
Page 24 and 25: CSEB wall (24 cm thick) � 3,067 R
Page 28 and 29: Aum House - New Delhi, Built in 66
Page 30: 1. C. DISASTER RESISTANCE WITH CSEB

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