混和材 (1)

[V-16] Performance of Low carbon High performance Concrete exposed to natural environment for 5 years

*齋藤 淳¹、榎原 彩野¹、齋藤 尚²、堺 孝司³ (1. 安藤ハザマ、2. 東京エスオーシー、3. 日本サステイナビリティ研究所)

Keywords:Low environmental impact concrete, CO2 reduction, Fly ash, Blast furnace slag, Low carbon High performance Concrete

The mechanical and durability performances were investigated for a structure constructed using low carbon high-performance concrete (LHC) with a binder proportion of 60% Portland cement, 20% fly ash, and 20% blast-furnace slag fine powder at a age of 5 years. Mechanical properties such as compressive strength and elastic modulus were equal to or better than concrete using ordinary portland cement. On the other hand, with regard to durability, it has been confirmed that it has 100 years of carbonation resistance and very high salt damage resistance.