Creative Head : A. Mohan, K. Venkat Raman Technical Support: P. Sadhan, V. Vignesh Kumar, A.Arunya Project Assistant : A.John Kennedy, S. Rajkumar
Пікірлер: 30
@rameshgadidesi46253 жыл бұрын
Finally you not showing initial setting time value . actually initial setting time before 30 min naa.
@rajaram-pu2tn3 жыл бұрын
Don't give half half information 1)when ur add water timer should starts 2) for make penidation should need 2differnt diameter needle 3)use for determine initial setting time for 3mm needle 4)use for final setting time smaller mean 1mm 5)waterquantity=0.85×standard consists ofwater(like 0.32)×weight of cement (may you take 250 gram)
@sanjeeviglesias62934 жыл бұрын
The cement weighing 300g is taken and it is mixed with Percentage of water as determined in consistency test. The cement paste is filled in the vicat mould. The square needle of cross section 1mm× 1mm is attached to the moving rod of the vicat apparatus. The needle is quickly released and it allowed to penetrate the cement paste in tge begging the needle penetrate completely.it is then taken out and dropped at a fresh place the procedure is repeated at regular intervals till the needle does not penetrate completely the needle should penetrate upto about 5 mm measured from bottom. The initial settings time is the interval between the addition of water to cement and the stage when needle cease to penetrate completely.thia time should be about 30 minutes for opc
@thirunavukarasu0079 Жыл бұрын
👌
@mandanmishra56603 жыл бұрын
No better performance by you, 1)you don't obey the gauging rule. 2)you don't obey the time period. 3)I don't understand how you use gauging trowel by one hand. 4)pouring water is too slow.
@gopalakrishnapodilapu75993 жыл бұрын
Thank you sir
@SoudagerAamer4 жыл бұрын
0:22 That's needle isn't it?
@Right_ToServe4 жыл бұрын
Sir I think u r added again some of water... 🤔🤔
@samarthanreddy41175 жыл бұрын
0.85×32% equals 0.272 sir.. how did u get 68ml? Could u please explain that
@yasamnaresh56345 жыл бұрын
In serial no 3 the percentage of water taken is 32% i.e 80ml..at 32%we obtained standard consistency.so for IST we have to take 0.85*80=68ml..
@rohitgooner8784 жыл бұрын
The Weight of cement taken in this case is 250g. So, 32% of 250 = 80ml 0.85 * 80 = 68ml
@ashwinichinu26814 жыл бұрын
Tq u sir
@janninoenecio783 жыл бұрын
@@rohitgooner878 where did 0.85 came from?
@shantharam2699 Жыл бұрын
Actually just 24% water is enough of cement weight bro
@mdshahbaz80545 жыл бұрын
Thank you sir.
@civilengineeringbykrishans94064 жыл бұрын
Good video
@mohana39834 жыл бұрын
thnks
@ravipatel93165 жыл бұрын
But, lastly you not showing what is exect initial setting time...
@mgmwgl5 жыл бұрын
@Ravi Patel.. its 35 minutes
@vishnuvardhan71355 жыл бұрын
@@mgmwgl but our Is standard initial setting time of cement is 30. But , experimentaly you get 35. Could you please tell us sir
@thetechnicalaspirants3574 жыл бұрын
Thank u sir
@omkarutekar89504 жыл бұрын
take 400 gm of cement hame to aisa bata yaa hai
@moomin0134 жыл бұрын
Correct one
@bhagatuttam14523 жыл бұрын
Good knowledge sir ,
@badalkumar66033 жыл бұрын
Galat testing kiya hai.
@uwiringiymanajohn23523 жыл бұрын
E
@gautamkadam40674 жыл бұрын
सब गलत कर रहे हो.
@sanjeeviglesias62934 жыл бұрын
The cement weighing 300g is taken and it is mixed with Percentage of water as determined in consistency test. The cement paste is filled in the vicat mould. The square needle of cross section 1mm× 1mm is attached to the moving rod of the vicat apparatus. The needle is quickly released and it allowed to penetrate the cement paste in tge begging the needle penetrate completely.it is then taken out and dropped at a fresh place the procedure is repeated at regular intervals till the needle does not penetrate completely the needle should penetrate upto about 5 mm measured from bottom. The initial settings time is the interval between the addition of water to cement and the stage when needle cease to penetrate completely.thia time should be about 30 minutes for opc