Sir please suggest me answer 1). If question is asked *Vicat Apparatus* is used to ----- a) To find setting time of cement b) To find standard Consistency Then what will we chose???
In dono me basic difference hai pratical lab me normal consistency of cement me 400gm cement lete hai aur cement weight 25% water lete hai aur mix prepared krte hai aur isme vicats niddle 10mm ki use krte hai. Isme 25% se 5% water add krte chale jayenge tab tak jab tak hume top se 33 to 35 penetration na mil jaye or yah bottom se 5 to 7 penetration mil jaye. Aur setting me 100gm cement and 0.85p water (where p= normal consistency of cement). Aur isme 1mm ki niddle use krte hai isme hame top se 33to 35 penetration par 25 to 30 minutes mil jaye yeah initial setting time.
