| Testing Equipments > Length Comparator for Cement Concrete |
List of Concrete Testing Equipments
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 Length Comparator for Cement Concrete |
| Length Comparator for Cement Concrete IS: 9459 The apparatus can be used for three basic tests: Initial drying shrinkage – The difference between the length of the cured specimen and the length when it is dried. Drying shrinkage - The difference between the length of the specimen from existing structure and its length when completely dried. Moisture movement - 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 plate and a recessed seating and a 300 ± 1.0 mm long alloy steel reference bar having coefficient of thermal expansion less than 2x10-6deg with 6 mm dia steel balls mounted at the ends. Supplied complete, with a dial gauge 0.002 mm x 10 mm. |
