This apparatus is used for determining strain and deformation characteristics of standard concrete cylinders of 150mm diameter x 300mm length. The compressometer consists of two frames for clamping to the specimen using five tightening screws with hardened and tapered ends. Two spacers hold the frames in position. An adjustable pivot rod rests on pivot screws.
A spring enables the pivot rod to remain in contact with pivot screws. The ball chain is for adjusting the tension of the spring. A dial gage, fixed to a bracket on the top frame, is used for making deformation measurements.
TO-372 Longitudinal Compressometer with TO-072 analog dial gage