Test device for alkali carbonate reaction test

The utility model belongs to the technical field of carbonate aggregate detection, and particularly discloses an alkali carbonate reaction test device which comprises a test box, a measuring device, a placing bracket and a test piece ejector rod, the measuring device is used for detecting the change value of the length of the to-be-measured alkali carbonate aggregate test piece. The placing bracket is arranged in the test box and is used for placing a to-be-tested alkali carbonate aggregate test piece; the test piece ejector rod is arranged on the side wall of the test box and is positioned on one side of the placement bracket. The measuring device adopts a high-precision dial indicator; the measuring end of the measuring device is located on the other side of the placing support and located on the same axis with the test piece ejector rod to form a clamping measuring structure. The whole structure is simple, the whole structure has the advantages of being convenient to carry and easy to assemble/disassemble,