One of the best things I did when pouring my floor was to install a simple floor drain in the middle about 2" lower than the outside edge. 4" pvc that goes down under the slab and daylights outside. I agree with the rebar, I used #4 at 12" o.c. each way and my floor hasn't cracked.
5600 taps on tubing w/ vacuum, 3.5 x12 Oil Fired with pre-heater, 2 Post RO
http://s674.photobucket.com/albums/v...owhillmapping/
http://snowhillfarm.com
Hi
I have attached the link to the UVM publication page.
http://www.uvm.edu/~uvmaple/?Page=on...lications.html
There is also a link to their Sugarhouse Design pdf file.
http://www.uvm.edu/~uvmaple/sugarhousedesign.pdf
Sugarhouse file is 27 pages.
Enjoy
Whitetail24
Thanks 3rdGen, Vermont and SnowHill. The rebar makes a lot of sense under the evap and I will do just that.
We're pretty much in the woods so a center drain is also a great idea as long as I can keep the critters from using it as an entrance....
Did you build on footers? The mason is thinking a thickend slab - 12"x 12" deep at outer edge with a curb then going to 5" in the floor area. Any thoughts or experience with that?
Thanks again
John Allin
14x18 Hemlock Timber Frame Sugar House 2009
Leader 2x6 w/Patriot Raised Flue Pan 2009
Leader Steam Hood 2014 - Clear Filter Press 2015
Leader Revolution Pan and SS Pre-Heater 2016
CDL Hobby 250 RO & Air Tech L25 Hi Vac Pump 2019
06' Gator HPX to collect wood & sap
14' Ski-Doo Tundra for winter work in the woods
Great Family 3 grown kids+spouses and 7 grand kids who like the woods
7th Gen Born in Canada - Raised in Chardon Ohio - Maple Capital of the World..<grin>.
Just remember your slab is only as good as your sub grade. The better your sub grade is the longer your slab will last crack free. Rebar should be a must as well. I work for a concrete paving company and could keep going with many options, it just depends on what lengths you are willing to go.
Johnallin Lets start by saying I am no concrete expert but here is my thoughts. If you go the route of the 12 inch slab on the outer perimeter I would not pour it so it is part of the floor. I would pour the 12 inch footer first build the sugarhouse then pour the floor. I would put that foam sheeting between the footer and the floor. I would think the weight of the walls plus the snow on the roof would cause enough settling that it will crack your floor in a hurry if it was one piece. I do know that alot of old school mason who built houses many moons ago only had footers down in the ground a few inches. I live in an old house that was built that way and darn if it is not still standing as strong as ever. But like already mentioned it might have alot to do with the earth under the foundation and frost zones. We get snow before a hard freeze here and anytime or any year in the winter you can dig out the snow and have unfrozen ground under it. Sounds like you are skipping the zoning laws and inspector but you just might want to check your codes to be safe incase you get a visit. And the last thing is I think we have a tendancy to overkill the capacity of concrete. An arch and full pans is not as heavy as you think. I have installed many machines that are in the thousands of pounds that the manufactures only require a 5 inch pad for and they do not move.
2X6 deluxe Phanuef
Adding 200 more every year
27 years left of building a Hobby into a retirement time burner.
Johnallin,
My sugar house is on a slab that is about a foot deep under the walls and 4 to 6 inches deep for the main floor. It is one piece except that I formed out the place where the evaporator sets and poured that a week later and 2 inches thicker (a little less bending to fire the thing). I used lots of farmer re rod throughout the floor (old gutter cleaner chains, spreader webs, bandsaw blades, and whatever else). The pour was ramrodded by my 82 year old father in law who poured concrete as an independent contractor for 35 years. Building is 24 x 26 feet. Evaporator slab is 6 x 14 feet. No sign of anything moving or any cracks. We dug out and leveled the foundation area and put drainage tile around and under the area. We put a floor drain in that goes down to one of the drainage tile. A sub base of crushed marble was put down and the concrete poured on top of that. A good solid and well drained base is essential. Limit the moisture and you limit the potential for frost heaving.
My evaporator sit's on a 14x18 slab that is a foot higher then the main floor.No more bending to fire it.
02 F350 powerstroke and 89 Toyota 4X4 5 speed sap haulers
16X16 sugar shack
30"X8' raised flue GH Grimm evaporator Smoky Lake Maple front pan!
Sthil MS 460, 026 (2), 009, husky 61, 365, 272, and a 42
2009 41 taps, 2010 72 taps on a barrel evapotator all buckets, 2011 151 taps 34 buckets 117 taps on tubing.