Tuesday, November 24, 2009

The cement arrives...

We scheduled the cement to be delivered mid-morning so it would be warmer than an early morning pour. Cement needs the warmth to cure properly, it is better to pour in the middle of summer than in the winter, but the summer in this part of the country it is so hot it would have been very hard to have worked in the hot sun setting the forms, so we compromised with the fall .
The crew finished up with last minute details just before the 1st truck arrived .
To extend the 30 foot chute the crew used a 4X8 sheet of plywood, it sorta worked but the cement was so heavy the plywood collapsed easily. So they used special cement tools to move the cement in place.

We were a little worried after the first truck because it appeared not to go very far. We realized that they started in the corner with the deepest forms so as each truck arrived they covered more area.
Each truck carries 10 cubic yards. So how it works is the contractor estimates the cubic yards by measuring the ditches and slab top.
One cubic yard = 27 cubic feet.
Cement is ordered by the nearest full truck then after the last truck dumps the last truck is ordered to complete the job. Our two slabs took 48 yards of cement.

After the cement partially cures ( it will become thick enough to hold some weight but soft enough to move steel through it, there is a small window of time for this) we put in the weld plates(metal poles will be welded to these) anchor bolts (6X6 cedar posts will sit on top of these) for the shop and re-bar for the cinder blocks in the bath house (the re-bar will go through the blocks to anchor them to the slab) .

The slab sat for a few days then the forms were removed and the out side was smoothed and finished.







Larry and his crew did a wonderful job and for a reasonable fee. Here they are on the steps to somewhere.......







1 comment:

John and Mary Lee said...

Wow, "concrete" progress!
It is so nice when you finally get the cement poured. It really starts to give you a sense of permanence, and progress.

We will check in now and then.

We have added meat rabbits this winter and are starting up bees in the spring.

Blessings ! , John & Mary Lee