In Vicat apparatus, the paste is said to be of 'Normal consistency' if the rod penetrates-
33 to 35 mm
According to standard test procedures for cement, the paste is said to be of 'Normal consistency' if the 10 mm diameter rod (plunger) penetrates to a depth such that the bottom of the rod is 33 to 35 mm below the original surface (top of the mould). Therefore, for normal consistency, the rod should penetrate 33 to 35 mm from the top surface of the paste.
Important Questions from Cement
Refractory cement is rich in
The ______ in excess makes the cement unsound and causes the cement to expand and disintegrate
Match the apparatus for conduct of test in List 1 with the property of cement in List 2.
List 1
List 2
A. Vicat’s apparatus test
1. Soundness test
B. Le-Chatelier’s apparatus
2. Fineness
C. Briquette test method
3. Setting time
D. Air permeability method
4. Tensile strength
The cement becomes useless if its absorbed moisture content exceeds
In ordinary cement, about 99% of its final strength is achieved in _____.
