Comprehensive Survey on Effective Utilization of Mongolian Fly Ash

• Project/Area Number: 25303004
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 海外学術
• Research Field: Environmental conscious materials and recycle
• Research Institution: Tohoku University
• Principal Investigator: Pushpalal Dinil 東北大学, 国際文化研究科, 教授 (10361148)
• Co-Investigator(Renkei-kenkyūsha): Matsumoto Toshifumi 共立女子大学, 家政学部, 教授 (70316454) ; Saito Kiyoshi 桐蔭横浜大学, 医用工学部, 教授 (90225699)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: フライアッシュ / モンゴル / 圧縮強度 / Class C / Anhydrite / れんが / コンクリート / 環境負荷 / アンハイドライト / 圧縮強度予測式

Outline of Final Research Achievements

The purpose of this study was to investigate the possibility of utilization of Mongolian fly ash in the construction industry. We have conducted the following studies under this research: 1. Interviews in Ulaanbaatar to understand current conditions of usage and the inhibition factors of dissemination of use of fly ash. 2. Research on the optimal mix proportion for fly ash brick industry 3. Experiments to find effect of anhydrite in fly ash in giving a high compressive strength.
We have obtained the following results:1. We have found that non-uniformity of fly ash and radioactivity of fly ash inhibit the usage. 2. Utilization of slag cement with the cement to calcium hydroxide ratio is 1.43 gives the optimum blend with the highest compressive strength and the lowest CO2emissions. 3. Fly ash with anhydrite gives the higher strength than fly ash without anhydrite at all ages. It has found that this optimum content of anhydrite in fly ash would be 1.5-2.5kg/m3 of concrete.

Research Products

• [Journal Article] モンゴル産フライアッシュを混和したコンクリートの強度発現特性 その１ モンゴル産フライアッシュの性質と実験計画 と実験計画 (2015)
  • Author(s): 鹿島大雄，鈴木敦詞，プシュパラール ディニル
  • Journal Title: 日本建築学会大会学術講演梗概集 Volume: XX Pages: 71-72
  • Acknowledgement Compliant
• [Journal Article] モンゴル産フライアッシュを混和したコンクリートの強度発現特性 その２ 圧縮強度試験結果と強度予測式の提案 (2015)
  • Author(s): 鈴木敦詞，鹿島大雄，プシュパラール ディニル
  • Journal Title: 日本建築学会大会学術講演梗概集 Volume: XX Pages: 73-74
• [Journal Article] モンゴル産高カルシウムフライアッシュを使用したコンクリートの強度特性に関する研究 (2015)
  • Author(s): 鹿島大雄，鈴木敦詞，プシュパラールディニル
  • Journal Title: コンクリート工学年次論文集 Volume: 37 Pages: 121-126
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Study on Strength Properties of Concrete Using High Calcium Mongolian Fly Ash (2015)
  • Author(s): Hiroo Kashima, Atsushi Suzuki, Dinil Pushpalal, O.Batmunkh
  • Journal Title: Proceedings of 14th Annual Concrete Conference, Mongolia Volume: XX Pages: 10-15
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Prediction Model for Compressive Strength of Fly Ash Concrete (2015)
  • Author(s): Atsushi Suzuki, Hiroo Kashima, Dinil Pushpalal, O.Batmunkh
  • Journal Title: Proceedings of 14th Annual Concrete Conference, Mongolia Volume: XX Pages: 16-20
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] モンゴル産フライアッシュを使用したコンクリートの強度発現予測式. (2015)
  • Author(s): 鈴木敦詞，鹿島大雄，プシュパラールディニル
  • Journal Title: 日本建築学会東北支部研究報告集構造系 Volume: 78 Pages: 153-156
• [Presentation] MIX PROPORTIONING WITH MONGOLIAN FLY ASH (2014)
  • Author(s): Dinil Pushpalal
  • Organizer: 13th ANNUAL CONCRETE CONFERENCE
  • Place of Presentation: ULAANBAATAR, MONGOLIA
  • Year and Date: 2014-06-06
  • Invited
• [Presentation] Making Concrete Stronger and Greener with Mongolian Fly Ash (Part 1) (2013)
  • Author(s): Dinil Pushpalal
  • Organizer: 12th Annual Concrete Conference, Ulaanbaatar, Mongolia
  • Place of Presentation: Ulaanbaatar, Mongolia
  • Invited