Patterned cementitious surface conrolling sunlights reflection and its effect of CO2 reduction

Research Project

Project/Area Number	24760444
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Building structures/materials
Research Institution	The University of Tokyo
Principal Investigator	KITAGAKI Ryoma 東京大学, 工学(系)研究科(研究院), 講師 (20456148)
Project Period (FY)	2012-04-01 – 2014-03-31
Project Status	Completed (Fiscal Year 2013)
Budget Amount *help	¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000) Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000) Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords	日射 / 短波反射 / 熱収支 / 建築材料 / セメント硬化体表面 / 凹凸形状制御
Research Abstract	Patterned cementitious surface conrolling sunlight reflection were designed and developed to increase heat transfer from sunlight in winter and decrease in summer. A heat transfer model for the concrete surface considering heat irradiation on the surface microstructure is proposed and compared with the experimental results. As a results the surface of the concrete, which has seasonal heat selectivity, is developed and the effects of CO2 reduction are calculated quantitatively based on degree-day methods.