Studies on Hardening in Kanto LoamLime Stabilization

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Other Title
  • 石灰処理による関東ロームの硬化現象について
  • イシ ハイショリ ニ ヨル カントウ ローム ノ コウカ ゲンショウ ニ ツイテ オモニ チョウキザイレイ ニ オケル ハンノウ セイセイブツ ト ノ カンケイ
  • On the Reaction Products in a Long Term Curing
  • おもに長期材令における反応生成物との関係

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Description

To obtain the fundamental dada of hardening in Kanto loam-lime stabilization, we investigated its hardening by means of the identification of the reaction products and the measurement of its physical properties.<BR>The results are summarized as follows ;<BR>(1) Reaction products in Kanto loam-lime stabilization were recognized tetracalcium aluminate 13-hydrate (4CaO·Al2O3·13H2O) and dicalcium aluminate silicate 8-hydrate (2CaO·SiO2·Al2O3·8H2O) at the early stages, and thereafter calcium silicate hydrates.<BR>(2) The compressive strength of Kanto loam-lime stabilization specimen increased with the reaction time. From this result, it is supposed that there might be some close correlation between the strength and the reaction products.<BR>(3) The structure of Kanto loam dealt with quick lime showed a tendency of aggregation, but considering the test results concerning the specific surface area, the treatment of lime seems to contribute the strength development of the loam.<BR>(4) Hardening in Kanto loam-lime stabilization depends on the composition of clay minerals in Kanto loam, and especially hydrated halloysite seems important for strength development.

Journal

  • Gypsum & Lime

    Gypsum & Lime 1966 (84), 170-177, 1966

    The Society of Inorganic Materials, Japan

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