[10p-N322-1~16] 8.5 Plasma phenomena, emerging area of plasmas and their new applications

[10p-N322-16] Improvement of the hydrophilicity of mortar fabricated from cement for ultrahigh-strength concrete by atmospheric-pressure plasma jet irradiation

〇(M2)Kota Ogawa¹, Tomoki Toyama², Tetsuro Kasai², Hiroshi Kuwahata¹ (1.Tokai Univ., 2.Tokai Univ)

Keywords:plasma, mortar, hydrophilicity

An atmospheric-pressure argon plasma jet was irradiated to the mortar fabricated from cement for ultrahigh-strength concrete used in the construction of tall buildings for 1-3 minutes.
The contact angle of a water drop on the mortar surface after the plasma irradiation for 1 min decreased from 84 to 19 degree.
The hydrophilicity of the mortar surface improved after the plasma irradiation.