Length Comparator

Product Details :

Length Comparator is used to measure the drying shrinkage of an autoclaved Portland cement and the potential expansive reactivity of a specified amount of cement aggregate combinations in the mortar bars at the time of storage on self-drying. The instrument comprises of channeled base over which two vertical pillars are affixed and an adjustable cross plate is provided at the top. A dial gauge is also provided for reading 0.002 mm x 12 mm or 0.01 X 25mm. More details of this instrument are mentioned below:

• The plunger end of the dial gauge can be easily located up on a 6.5 mm. dia ball or other reference point that is cemented in the specimen
• On the base, there is a similar recessed seating where a second ball can be placed or reference point in the specimen
• Provided with a stainless steel standardization bar along with an insulated grip and with a 6.5mm dia ball properly mounted in the ends