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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.3
- 수록면
- 75 - 82 (8page)
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In this study, to reduce carbon dioxide caused global warming, it attempts to manufacture high volume mineral admixture (HVMA) concrete using large content of by-products blast furnace slag and fly ash, and 10 % of cement occurred carbon dioxide. As compressive strength of HVMA concrete is lower, the concrete experiment was performed using inorganic additives, an inorganic additives of CSA, anhydrous gypsum and calcium oxide, for strength increase of normal concrete degree.
At the slump of concrete, CSA 1 % series was not showed loss of change after 1 hour, but CSA 2 % series showed significant loss of change after a hour. And air content of concrete was not change between initial and 1 hour later, so additives was not affect air content. Compressive strength of 28 days was measured 23.4～30.7 MPa at CSA 1 % and range of 25.4～39.1 MPa at CSA 2 %, it increased according to usage of CSA and anhydrous gypsum, but it did not show significant changes about use of calcium oxide. Elastic modulus of 28 days was measured 27.4～29.5 GPa at CSA 1 % and range of 27.2～32. 0 GPa at CSA 2 %, and its range of change according to additives were lower compared to compressive strength. Considering fluidity and mechanical properties of concrete, it is judged that optimum combination ratio of additives for performance revelation of HVMA concrete at normal concrete area was CSA is 1 %, and anhydrous gypsum and calcium oxide is 2～4 % respectively.
Therefore, HVMA concrete made by only 10 % of cement and a little inorganic additives is expected that reduce carbon dioxide at concrete in manufacturing field and match government policy of low carbon green growth.
At the slump of concrete, CSA 1 % series was not showed loss of change after 1 hour, but CSA 2 % series showed significant loss of change after a hour. And air content of concrete was not change between initial and 1 hour later, so additives was not affect air content. Compressive strength of 28 days was measured 23.4～30.7 MPa at CSA 1 % and range of 25.4～39.1 MPa at CSA 2 %, it increased according to usage of CSA and anhydrous gypsum, but it did not show significant changes about use of calcium oxide. Elastic modulus of 28 days was measured 27.4～29.5 GPa at CSA 1 % and range of 27.2～32. 0 GPa at CSA 2 %, and its range of change according to additives were lower compared to compressive strength. Considering fluidity and mechanical properties of concrete, it is judged that optimum combination ratio of additives for performance revelation of HVMA concrete at normal concrete area was CSA is 1 %, and anhydrous gypsum and calcium oxide is 2～4 % respectively.
Therefore, HVMA concrete made by only 10 % of cement and a little inorganic additives is expected that reduce carbon dioxide at concrete in manufacturing field and match government policy of low carbon green growth.
목차
Abstract
1. 서론
2. 실험계획
3. 실험결과
4. 결론
참고문헌
참고문헌 (10)
참고문헌 신청
최동욱 / 2009 / 콘크리트 산업의 기후변화 대응을 위한 기초 조사 / 한국콘크리트학회 가을학술대회 친환경콘크리트위원회
국토해양부 / 2011 / 한국건설교통기술평가원, 탄소저감형 건설재료 기술개발 기획보고서 :56~58
溝渕 麻子 / 2011 / 混和材を高含有したコンクリートの基礎的性狀 (その1 フレッシュ性狀および力學性狀) / 日本建築學會大會學術講演梗槪集(關東) :185~186
辻 大二郞 / 2011 / 高爐スラグ高含有セメントを用いたコンクリートの基礎物性 (その1) 分散劑種類がフレッシュ性狀及び硬化性狀に及ばす影響 / 日本建築學會大會學術講演梗槪集(關東) :205~206
金井 亮 / 2011 / 高爐スラグ高含有セメントを用いたコンクリートの基礎物性 (その2) SO3量と水セメント比がフレッシュ性狀と壓縮強度に及ばす 影響 / 日本建築學會大會學術講演梗槪集(關東) :207~208
국토해양부 / 2011 / 한국건설교통기술평가원, 탄소저감형 건설재료 기술개발 기획보고서 :56~58
溝渕 麻子 / 2011 / 混和材を高含有したコンクリートの基礎的性狀 (その1 フレッシュ性狀および力學性狀) / 日本建築學會大會學術講演梗槪集(關東) :185~186
辻 大二郞 / 2011 / 高爐スラグ高含有セメントを用いたコンクリートの基礎物性 (その1) 分散劑種類がフレッシュ性狀及び硬化性狀に及ばす影響 / 日本建築學會大會學術講演梗槪集(關東) :205~206
金井 亮 / 2011 / 高爐スラグ高含有セメントを用いたコンクリートの基礎物性 (その2) SO3量と水セメント比がフレッシュ性狀と壓縮強度に及ばす 影響 / 日本建築學會大會學術講演梗槪集(關東) :207~208
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