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Leightweight, deformable, isotropic fill
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DEVICE FOR DEVASEMENT WITHOUT POLLUTION OR NOTABLE WATER CONSUMPTION
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Process for making earth banks impervious by spraying with a mixture based on clay and cement
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Reservoir for liquids lighter than water - has walls formed by pressure grouting from oscillating injector
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Vibratory compactor probe - works at its natural frequency and has rigid extension tubes
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