Studying the Failure Behavior of Cement-fiber-treated Sand under Triaxial Direct Tension Tests
نویسندگان
چکیده
The main goal of this research is to study the failure behavior cement-fiber-treated sand under triaxial direct tension condition tests. Thus, a new loading system and cell was designed built for tensile loading. Samples were prepared with content cement 3 5% (dry wt.) sand, while two types polypropylene fibers 0.024 m in length 23 μm 300 thick added at 0.0% 0.5% mixture. After seven-day curing period, samples loaded tests confining pressures 100, 200, kpa drained conditions. Stress-strain behavior, changes volume energy absorbed by cement-fiber reinforced measured compared results other studies. Adding resulted reduced peak deviatoric stress increased residual stresses from brittle ductile behavior. initial stiffness 50% maximum decreased addition an increase fiber diameter, reduction rate more evident. thickness less than μm. effect adding strength parameters showed that cohesion intercept decreases, internal friction angle increases.
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ژورنال
عنوان ژورنال: Periodica Polytechnica-civil Engineering
سال: 2022
ISSN: ['0553-6626', '1587-3773']
DOI: https://doi.org/10.3311/ppci.18469