Direct shear testing device for cohesive property of fresh concrete

The utility model discloses a direct shear testing device for cohesive performance of fresh concrete, which is characterized by comprising a bottom platform, a dynamic shear device, a dial indicator, a weight, a mold for bearing the fresh concrete and a tension meter connected with the mold through a tension rope, and the dial indicator and the mold are respectively fixed on the bottom platform. One end of the tension meter is connected with the tension rope to ensure that the tension rope is in a horizontal state when being tightened, a detection pointer of the dial indicator is contacted with the outer wall of the mold, the other end of the tension meter is connected with power shearing equipment through the tension rope, and the mold is composed of two independent closed hollow cubes with the same specification and through centers. A video recorder is used for recording the whole test process and recording the reading change of the tensile machine and the dial indicator. The device is simple, easy to opera