When the length of the concrete mix

When the length of the concrete mixture is greater than 10m, the vibrating operation can be started. The row vibrator is inserted into the vibrating rod. When the vibrating rod group is intermittently inserted, the moving distance should not exceed the effective effect of the vibrating rod. 1.5 times the radius, and no more than 500mm, the vibrating time is generally 15 ~ 30s; the vibrator's holding time of vibrating at each position, the mixture stops sinking, no more bubbles and the cement mortar will prevail, It can't be over-vibrated, and the steel bar should be avoided during the vibrating process to prevent the steel bar from dislocating.