著者

松岡 保正

出版者

長野工業高等専門学校

雑誌

長野工業高等専門学校紀要 (ISSN:02861909)

巻号頁・発行日

no.29, pp.27-36, 1995

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There lie two quiescent volcanoes and three canyons in the basin of the Torii River. In time of heavey rainfall, driftwoods and gravels are produced in theese areas. Sometimes they cause hydrospheric disaster. On the other hand, these areas are kept in reratively good condition. So we must pay due regard to natural river ecosystems. A good cooperation between engineers, ecologists, and similar experts paired with the work of good service team is essential to water resources management and maintainance.

著者

松岡 保正

出版者

長野工業高等専門学校

雑誌

長野工業高等専門学校紀要 (ISSN:02861909)

巻号頁・発行日

vol.29, pp.27-36, 1995-12-28

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There lie two quiescent volcanoes and three canyons in the basin of the Torii River. In time of heavey rainfall, driftwoods and gravels are produced in theese areas. Sometimes they cause hydrospheric disaster. On the other hand, these areas are kept in reratively good condition. So we must pay due regard to natural river ecosystems. A good cooperation between engineers, ecologists, and similar experts paired with the work of good service team is essential to water resources management and maintainance.

著者

遠藤 典男 小林 勇人 中島 星矢 松岡 保正

出版者

長野工業高等専門学校

雑誌

長野工業高等専門学校紀要 (ISSN:02861909)

巻号頁・発行日

vol.38, pp.37-40, 2004-06-30

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Recently, increasing amount of waste, recycling society has been desired. Recycling fine aggregate are crashed in waste concrete, so involving a lot of various (small or micro) cracks. When mixing recycling fine aggregate in standard concrete, they make compressive strength deterioration. The other hand, porous concrete (POC) are applied to low strength fields. For example, concrete coastal revetment in which plants and small animals are able to alive, permeable pavement, soundproof wall on road, and so on. In this research, mixing recycling fine aggregate to POC, and evaluating mechanical properties for that POC.