JCI Annual Convention in Kyushu

Presentation information

The 45th JCI Technical Conference

A. Material & Construction » Recycled concrete/Recycle

Recycled concrete/Recycle

Fri. Jul 7, 2023 1:00 PM - 3:00 PM Room 4 (411)

座長:小澤満津雄 (土木),北垣亮馬 (建築)

[1206] PROPERTIES OF MORTAR INCORPORATING SPENT COFFEE GROUNDS COATED WITH WATER REPELLENT

Byungcheol CHOI1, Gyuyong KIM2, Yaechan LEE1, Jeongsoo NAM1 (1.Chungnam National University 2.忠南大学校)

Keywords:使い終わったコーヒーかす、撥水剤、モルタル、圧縮強度、吸収率、spent coffee grounds、water repellent、mortar、compressive strength、absorption ratio

As  the  amount  of  spent  coffee  grounds(SCG) generated after  manufacturing  coffee  increases,  a treatment plan is needed. Therefore, this study examined the properties of mortars incorporating SCG with and without water repellent coating. Results showed, the compressive strength, density and absorption ratio of a mortar incorporating water-repellent coated spent coffee grounds were improved. However, additional research is needed to reduce the W/B due to the separation of the surface layer and the deep layer of the test specimen and the destruction of the specimen.