While I don't know much about the application the concrete block are being used for, construction term for them is Concrete Masonry Units (C.M.U.)
As has been stated, with CMU's orientated so they are on their sides, the cells parallel to the ground, they are certainly not as strong or intended to have a load placed on them in that position, so beware of that when using these for the intended purpose, sure I realize people use these quite often for unorthodox purposes, and its generally not recommended to ever use them that way with any significant load placed on them.
The second thing that comes to mind is if they have been used before, are they in any way compromised, its not hard to fracture these, given some masons will use a masonry hammer to make ends or short pieces, while some use a wet saw for all cuts.
The only other thing I can add to this is that CMU are available in many forms and there are high strength CMU, 5000 PSI, with 75% filled cells, (supplier should have copies of their certifications on hand, as they are required for submission by contractors for approval) those would be a much better choice, and I am not recommending them to be use on their sides, but if I had no other choice, unique situation, needing support and air flow, be interesting to see some photos of an air floor on one of these to get a better idea of what you are dealing with.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Usin Your Implements: Bucket Loader - by Curtis Von Fange. Introduction: Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he rea
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.