column3a 090313 to 15 5.24 pm concrete lorry gets into position 5.28 pm 2 workers poured in concrete 5.34 pm concrete disposed and waiting for another worker ? 5.39 still waiting 5:45pm 3 workers start concreting again 5:54:40 pm started inserting the vibrator with difficulty finally managed to go in 5:55:22 pm pulled out the vibrator (only 40 seconds !!!) 6:04 finished concreting , tapping the formwork
http://www.youtube.com/watch?v=n8_846zxXZ0&hl=en
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