Concrete shrinkage and dilatometer

The utility model relates to the field of concrete testing, in particular to a concrete shrinkage and dilatometer which comprises a base, a first supporting plate is fixedly installed on one side of the top of the base, a limiting sliding groove is formed in the right side of the top of the base, a matched limiting sliding block is inserted into an inner cavity of the limiting sliding groove, and a first electric push rod is fixedly connected to the side wall of the limiting sliding block. The outer end of the first electric push rod is fixedly connected with the inner wall of the limiting sliding groove, and the top of the limiting sliding block is fixedly connected with a second supporting plate. According to the utility model, the electric push rod can drive the second support plate to move transversely, so that the dial indicator and the corresponding support plate can move outwards when the concrete test block is disassembled, the concrete test block is convenient and fast to disassemble and assemble, th