Continuous Water Content Monitoring by using Radio Isotope Moisture Meter

DOI Web Site 11 References
  • 井上 孝之
    （株）竹中工務店 東京本店 技術部
  • 瀬古 繁喜
    愛知工業大学 工学部 建築学科
  • 鈴木 裕史
    （株）竹中工務店 地理院研究合同庁舎耐震改修（07）（08）建築工事所
  • 中島 智
    国土交通省関東地方整備局 営繕部 保全指導・監督室

Bibliographic Information

Other Title
  • ラジオアイソトープ水分計による単位水量連続測定技術の実施（耐震改修工事の例）
  • ラジオ アイソトープ スイブンケイ ニ ヨル タンイ スイリョウ レンゾク ソクテイ ギジュツ ノ ジッシ タイシン カイシュウ コウジ ノ レイ

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Abstract

Water content of ready mixed concrete affects strength and durability of hardened concrete. Radio Isotope Moisture Meter enables to measure water content of concrete through the pumping pipe. In this report, the method of continuous monitoring of water content and the result of measured water content data are presented. Upper limit water content is established, when measured water content transgress the upper limit, concrete has to be returned to the ready mixed concrete factory. As a result, all of the concrete during the construction, measured water content was within +15kg/m3, that means the quality variation was small enough. For this case, it is demonstrated that there is an advantage using radio isotope moisture meter to verify all concrete quality.

Journal

  • Concrete Journal

    Concrete Journal 48 (11), 11_20-11_27, 2010

    Japan Concrete Institute

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