Development of Concrete Made with Seawater and Un-washed Sea Sand

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  • 海水および海砂を使用したコンクリート（人工岩塩層）の開発
  • カイスイ オヨビ カイサ オ シヨウ シタ コンクリート(ジンコウ ガンエンソウ)ノ カイハツ

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Abstract

We developed high-density and hard concrete using seawater and/or unwashed sea sand. The internal organizations of that concrete was denser compared with normal concrete, and it was clear that the water-tightness, early strength, and long-term strength of seawater and unwashed sea sand concrete were increased. Reinforced concrete structures that used a non-corrosive reinforcing bar were durable in the long term. Seawater and unwashed sea sand concrete construction could be used on remote islands or on the coast to reduce CO2 emission and construction costs. This paper describes the properties of s seawater and unwashed sea sand concrete and the examination about application to the concrete structures

Journal

  • Concrete Journal

    Concrete Journal 49 (12), 12_17-12_22, 2011

    Japan Concrete Institute

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