Mechanical and load transmission properties of soil-concrete block

Kayo Doumoto, Kiyonobu Kasama, Mitunari Hirasawa, Kouki Zen, Zentaro Furukawa, Yuichi Yahiro, Masato Nakamichi, Mitsunobu Sakamoto, Tatsuya Ueda, Masaaki Katagiri, Shuji Yamamoto, Osamu Kawahara, Toshiyuki Nagano

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)


In order to recycle dredged soil, our research group developed interlocking blocks from dredged soil. Dredged soil interlocking blocks (350 mm in width, 350 mm in depth and 100 mm-150 mm in height) were made from soft clay dredged at the Kanmon run. They were produced with the constant dehydration pressure 5 MPa and cement content of 15%, 20% and 25% per the dry weight of clay. The unconfined compression test and bending test were carried out to investigate material characteristics of dredged soil interlocking blocks in the water for six months. On the other hand, in order to check the effect of interlocking blocks, a road was constructed by using interlocking blocks on the surface and, as a roadbed material, dredged and dehydrated soil and crushed stone for mechanical stabilization were used. Characteristics of dispersion of traffic load and settlement were evaluated by running experiments. Stress was measured by four earth pressure gauges and settlement was measured by surveying. The following conclusions are obtained: (1) There was close relationship between unconfined compressive strength and water-cement ratio. Therefore, it is concluded that unconfined compressive strength of dredged soil blocks are controlled by water-cement ratio. (2) Dredged and dehydrated soil can disperse traffic load effectively. (3) Soil-concrete blocks can't disperse traffic load effectively, but have sinking suppressing effect when using dredged and dehydrated soil as roadbed material.

Original languageEnglish
Number of pages5
Publication statusPublished - 2015
Event6th Japan-China Geotechnical Symposium, SJGS 2015 - Hokkaido, Japan
Duration: Aug 31 2015Sept 1 2015


Other6th Japan-China Geotechnical Symposium, SJGS 2015

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology


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