수축 보상 모르타르의 현장 적용 연구

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김기동;정성철;송명신;이경희

  • 발행 : 2000.06.01

초록

In this study, we compared a plain mortar with the CAS-system shrinkage compensation mortar for Ondol that is Korean traditional heating system. The Ondol mortar is necessary to have properties as non-crack, fine flatness and stability for thermal changes. especially, mortar'crack prevention is to be most important property in Ondol mortar. To develope the stable material on the crack-prevention, we used to calcium-sulfo-aluminate(CSA)system in shrinkage compensation mortar. And so, we confirmed the effects of calcium-sulfo-aluminate(CSA) system for mortar's physical properties such as setting time, compressive strength and expansion ratio for crack prevention. The initial and final setting time of the CSA mortar is faster than plain mortar about 2hours. And, Compressive strength increased about 20% that plain mortar. The crack length per unit area, plain mortar is 0.426∼0.481m/m2. The Results of apartment construction field test, the shrinkage compensation mortar is excellent about the crack-reduce effect.

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참고문헌

  1. セメント ユソグリト 論文集 no.46 セメント ペ一ヌトの 自己收縮 田擇英一외
  2. セメント ユソグ リト論文集 no.47 自己收縮にぉよはすセメントの自己收縮の影響 田擇英一외
  3. セメント 若手の會 テキスト no.2 乾燥收縮應力の 解析 左藤喜昭외
  4. セメントユンクリト 中の水の擧動. TCR. pp.53-55 田代忠一,田擇英一著
  5. 土木學會 硏究發表會 講演槪要集 pp.720-721 水和物の種類か セメント ベ一ストの自己收縮にほす影響 左 剛 외
  6. J of ACI.9-10 pp.536-542 Procedure for Mixture Proportioning of Type-K Expansive Cement Blends for use in shrinkage- Compensating Mortars Jan Olek, Menashi. D. Cohen
  7. セメント技術年報 v.40 pp.75-78 セメントの硬化收縮と硬化休 の內部 空隙について 田擇英一외
  8. 建築學會誌 v.12 no.8 pp.231-241 公同住宅 바닥 모르터의 龜裂防止를 위한 無收縮 混利材의 開發 및 適用에 관한 實驗硏究 程聖哲 外
  9. proceding of JSCS. no.159 Influence of Curing Time On Shrinkage and Weight Loss of Hydrating portland cement Tazawa. E
  10. ユンクリ一ト學年論文報告集 v.14 no.1 pp.561-566 ユンクリ一トの自己收縮 田擇英一외
  11. Cement and concrete Research v.10 no.5 pp.601-660 Total deformation of loaded drying concrete Wittmann. F.H.;Roelfstra;P. E.