3 gallons of Dresses foam agent
Can you pleas describe or provide a link to this "Dresses foam agent"? I can't find it.
There are also other almost identical foaming agents available at local farm stores.
They are used for "row marking" where the tractor squirts droplets of foam so they can mark where they went.
Posts made by gemniii
RE: Average Cost Per Sqft
RE: Geopolymer Aircrete?
1 cubic foot of cement would yield about 3 cubic feet of concrete.
I thought the "standard" mix for concrete was 1 part cement, 6 parts other -
A concrete mixture ratio of 1 part cement, 3 parts sand, and 3 parts aggregate will produce a concrete mix of approximately 3000 psi.
from link text
RE: cracking of bricks
Perhaps part of the problem is language -
Since the article is in the UK the article is probably discussing Autoclaved aerated concrete (AAC), rather than Domegaia's form of AirCrete.
The article mainly discusses the problems with using the wrong mix for mud and poor application techniques. Both problems are usually taken care of in a Domegaia type build.
Marking foam vs Dawn
Another data point -
I recently tried to buy a gallon of Drexel FM 160 at my local farm store but they did not carry it so I purchased a gallon of Enduron PSI made by Precision Laboratories, another marking foam, for making aircrete.
Unfortunately life got in the way and I have not made any aircrete with it yet, but I am impressed with it's foam staying power.
To test it against the Dawn I had been successfully using I put 20ml of each in 500ml of water (PH7, about 60° F) in a 2L bottle and shook vigorously for 30 seconds.
After 30 minutes
the Dawn bubbles were starting to diminish
and at 3 hours there was significant difference.
Water curing aircrete - anyone tried it?
In one reference Concrete network.com they state:[quote]How to cure concrete.
The concrete is flooded, ponded, or mist sprayed. This is the most effective curing method for preventing mix water evaporation. Make sure you allow proper time for water curing.
Water retaining methods:
Use coverings such as sand, canvas, burlap, or straw that are kept continuously wet. The material used must be kept damp during the curing period.
Waterproof paper or plastic film seal:
Are applied as soon as the concrete is hard enough to resist surface damage. Plastic films may cause discoloration of the concrete-do not apply to concrete where appearance is important.
The chemical application should be made as soon as the concrete is finished. Note that curing compounds can effect adherence of resilient flooring, your flooring contractor and/or chemical membrane manufacturer should be consulted.
All the desirable properties of concrete are improved by proper curing![/quote]
Has anyone tried it?