Concrete drying shrinkage test mold for road and bridge construction

The utility model discloses a concrete drying shrinkage test mold for road and bridge construction, which comprises a module assembly, a bottom bracket is welded at the bottom of the module assembly, an air outlet cover is welded at an air inlet in the middle of the module assembly, and a connecting pipe is fixedly mounted at the air inlet in the bottom of the air outlet cover. According to the concrete drying shrinkage test mold for road and bridge construction, the upper mold frame and the lower mold base are fixed together, the measuring nail is clamped between the upper mold frame and the lower mold base, and concrete can be connected with the measuring nail during solidification, that is, when a test piece is prepared through the mold, the test piece and the measuring nail can be integrally formed; according to the air shrinkage detection device, the test piece does not need to be additionally arranged on the test piece subsequently, the test piece cannot be damaged due to the integral forming mode, the