A study for improving the performance of low-carbon concrete with by-product powder and recycled aggregate

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420558
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Building structures/Materials
• Research Institution: The University of Kitakyushu
• Principal Investigator: Takasu Koji 北九州市立大学, 国際環境工学部, 教授 (60336948)
• Research Collaborator: MINE NAOTO Universiti Tunku Abdul Rahman, Malaysia SHL Professor ; Kwan Wai Hoe Universiti Tunku Abdul Rahman, Malaysia Assistant Professor
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 再生骨材 / フライアッシュ / 砕石粉 / 砕砂 / 流動性 / クリープ / 外割混合 / 最適調合

Outline of Final Research Achievements

In the present, recycled aggregate attain the practical level as a recycled material. So, case study of using recycled aggregate is increased to use for the building structure. However, recycled aggregate has some issues to prevail using as building structures. The purpose of this study is to improve strength and suppress drying shrinkage and creep property by mixing fly ash in concrete with recycled aggregate. As a result, the compressive strength and drying shrinkage were improved by using blast furnace slag. The compressive strength and drying shrinkage were evaluated by pore volume of under the 2μm. By mixing fly ash, creep coefficient of concrete with recycled aggregate could be suppressed more than ordinary concrete.

Free Research Field

建築材料・施工