亜硝酸塩系補修剤のモルタルへの浸透性に関する基礎的研究

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タイトル別名
  • Fundamental Study on the Penetrability of Nitrite-Type Repair Materials into Mortar
  • アショウサンエンケイ ホシュウザイ ノ モルタル エ ノ シントウセイ ニ カンスル キソテキ ケンキュウ

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<p>This study aimed to clarify the influence of the type and concentration of nitrite-type repair materials on ion penetrability in cement mortar. The permeability test for various repair material was carried out in order to compare the physical permeability of nitrite-type repair materials. In addition, repaired mortar specimens were prepared for ion penetrability test using nitrite-type repair material, and the amount of penetration of nitrite and lithium ions were measured under outdoor and indoor conditions. As a result, the impregnation of a lithium nitrite solution became larger than that of a calcium nitrite solution in the permeability test. Moreover, when the nitrite-type repair material was directly coated on the surface of mortar specimen, it was confirmed that the amount of penetration of nitrite ions of a lithium nitrite solution became larger than that of a calcium nitrite solution. It is thought that a coexisting positive ion affects the penetration property of nitrite ions in hardened cement mortar.</p>

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  • 材料

    材料 66 (5), 359-364, 2017

    公益社団法人 日本材料学会

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