Initial drying shrinkage
The difference between the length of the cured specimen and the length when it is dried.
The difference between the length of the specimen from existing structure and its length when completely dried.
The difference between the length of the dried specimen and its length when again saturated with water.
The apparatus consists of a frame with adjustable cross head. The base is provided with a stainless steel circular platen having a recessed seating and a 300 to 301 mm long alloy steel reference bar having coefficient of thermal expansion less than 2 x 10-6 mm/degC with 6 mm dia steel balls mounted at the ends.
Supplied complete, with a dial gauge 0.002 mm x 10 mm.