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3. Laboratory Test Results

3. Laboratory Test Results. Laboratory Test Items. Cylinder specimens, D=5cm, L=10cm, are used for laboratory test. Soil strength is determined by Unconfined Compression Test. The spectral characteristic is measured by optical spectrometer. An example of weathering.

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3. Laboratory Test Results

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  1. 3. Laboratory Test Results

  2. Laboratory Test Items • Cylinder specimens, D=5cm, L=10cm, are used for laboratory test. • Soil strength is determined by Unconfined Compression Test. • The spectral characteristic is measured by optical spectrometer.

  3. An example of weathering Liaozhong Jing (Mar.30.2002)

  4. Weathering-induced surface change outdoor-exposure test using a cylinder specimen Start day after 90 days after 120 days deterioration processcaused by weathering

  5. Test Case Series N : without Relics Preservation Admixture (TOT) Series P : with Relics Preservation Admixture (TOT) TOT has developed by Tanaka Geology Consultants, Co.Ltd.

  6. Unconfined Compression Test Results-Series N (not used TOT)- deterioration process caused by weathering The peak value of Stress is called Unconfined Compression Strength (soil strength).

  7. Unconfined Compression Test Results-Series P (used TOT)- deterioration process caused by weathering Because of TOT effects, the peak values became larger than Series N.

  8. Comparison of Results Unconfined Compression Strength: Peak value of Stress on unconfined compression test result

  9. Spectral Characteristics-Series N- deterioration process caused by weathering

  10. Spectral Characteristics-Series P- deterioration process caused by weathering

  11. Relationship between Soil Strength and the Spectral Characteristic

  12. Relationship between Soil Strength and the Spectral Characteristic exponential relationship between them This figure shows a possibility of soil state monitoring from satellite imageries.

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