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box inside of box?

Posted: Wed Sep 17, 2008 10:30 pm
by txpolevaulter_k25
We just finished pouring our new runway and putting the box in it, and I was wondering if you are suppose to put another box inside of the one cemented in the ground. The one that we have now is all nasty looking, and i had to scrape a ton of left over cement out of it, and the origional aluminum look is now white and rough feeling. Just wondering, because I have seen some runways with an extra 'floating" box inside of it, and some that don't have it at all.

Re: box inside of box?

Posted: Thu Sep 18, 2008 12:18 am
by baggettpv
You are supposed to clean the wet concrete off the metal box while it's still wet. Then paint it Yellow for good visibility hehehe. When I do this work I hang the box at the proper grade then pour a wet cement around it. Vibrating the concrete making sure to fill any voids around it. On the final screeding I make sure the concrete is smooth to the top edge of the metal box. Thus no lip at all. Any other people with construction questions just email me and I can help. Rick Baggett, Building Trades teacher, Sabin Skills Center.

Re: box inside of box?

Posted: Thu Sep 18, 2008 12:38 am
by rainbowgirl28
txpolevaulter_k25 wrote:We just finished pouring our new runway and putting the box in it, and I was wondering if you are suppose to put another box inside of the one cemented in the ground. The one that we have now is all nasty looking, and i had to scrape a ton of left over cement out of it, and the origional aluminum look is now white and rough feeling. Just wondering, because I have seen some runways with an extra 'floating" box inside of it, and some that don't have it at all.


A "floating" box sounds like a recipe for disaster when it rains.

Re: box inside of box?

Posted: Sat Oct 11, 2008 1:27 am
by birdi_gurlie
At a high school in our area, one of the schools' box is a little loose...one of the other coaches said that during the Relay for Life [it was held there] she sneaked in and put quick-setting concrete in to keep the box in place...and they found out and took the box out! Its still a little loose, but not as bad. Its still kinda crazy that she fixed their box and they broke it again ON PURPOSE.