The utility model relates to the technical field of concrete, and discloses a heat and
moisture preservation device for concrete, which comprises a box body, the inner side wall of the box body is fixedly connected with a mounting cover, the top of the box body is fixedly connected with a water tank, one side of the water tank is fixedly connected with a guide
pipe, and the outer wall of the guide
pipe is fixedly connected with an
electromagnetic valve. The outer wall of the guide
pipe is fixedly connected with a window, the outer wall of the guide pipe is fixedly connected with an adjusting sleeve, the inner wall of the adjusting sleeve is movably connected with an adjusting rod, the outer wall of the adjusting rod is fixedly connected with a fastening sleeve, and one end of the adjusting rod is fixedly connected with a
piston. According to the heat preservation and
moisture preservation device for the concrete, the speed of
water flow can be manually adjusted and observed when water is added to the concrete for
moisture preservation, so that the
water flow can enter the box body in a buffered mode, the situations that excessive adding is caused by the too high
water flow speed and the water flow and the concrete are not uniformly fused are avoided, and the situation that the concrete cannot be used is avoided; the moisturizing effect is further improved.