Concrete Kibbles are considered 'ancillary devices' as are the brick cage and man box. Kibbles generally have the capacity of between 0.5m3 - 2m3. I have heard of 3m3 capacity kibbles, for this size you would need a decent size crane.
This kibble is a 2m3 kibble however it is hard to fill it all the way up. The heaviest I have loaded up this kibble is 4.7t of concrete which would be close to 2m3 of concrete.
Care must be taken to lower the kibble as it is being emptied as it will rise due to deflection reducing as the kibble becomes lighter. Here we are using the kibble to pour footings for columns.
My worst experience with a concrete kibble was when the boom pump that was pouring a concrete slab broke down. To avoid cold joints forming on the slab we had to continue to add concrete to the slab, slowly with the kibble.
On site the concrete trucks arrive staggered to keep the concrete pump continuously pumping. Therefore any delay caused by malfunction of the pump will lead to this situation where there are many trucks waiting to get rid of their concrete.
I have been told by the drivers that they charge $3 waiting time per minute after 20 minutes. This convoy would of been costing the builder $21 per minute.
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