ronie wrote:I like the cottage Walt, Is the roof going to have a finish coat of some kind or is it finished? Sorry i haven't read everything as I am on the way to Cedar Falls Iowa and will have 2G signal for the next 2 days... It looks like that place is cozy..I love the design.
Abe Connally wrote:I've done a lot with ferrocement, including vaults, domes, water tanks, buried homes, etc.
One thing I can tell you is that IT IS NOT WATERPROOF. That's right folks, it will leak, or at least, seap. But, depending on the water source, the leaking can actually cure itself, as minerals get deposited in the cracks/pores, and the leak eventually stops.
To make it completely water proof, you need a final coating of Thoroseal or just cement, water, and acrylic.
Very fine sand and/or fly ash helps with the waterproof issue.
Cold joins are the biggest problem with water tanks, you need to reduce them as much as possible.