Fig. 1. Unconfined compression tests of sand treated with agar Fig. 2. (a) Triaxial compression tests on untreated sand and sand treated with 1% agar grout; (b) triaxial compression tests on untreated sand and sand treated with 2 and 4% agar grout Fig. 3. Unconfined compressive tests of sand treated with 1% agar and 0.5% starch Fig. 4. Triaxial compression tests of sand treated with 1% agar and 0.5% Starpol 600/1% Starpol 136 Table 1. Mohr-Coulomb Parameters for Sand Treated with Biopolymers where oy and a3 denote the major and minor principal stresses at failure, respectively. Fig. 5. Shearing modes and strain at failure (peak deviator stress) in triaxial compression under a confining pressure of 100 kPa: (a) 1.0% agar at 2% strain; (b) 2.0% agar at 2.5% strain; (c) 4.0% agar at 3% strain; (d) 1.0% agar and 0.5% Starpol 600 at 1.6% strain
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Brendan C . O'Kelly
