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Around
outer edges of your cottage build a form as shown in
picture at
side. I assume that you didn't knock
walls of your trench in; if you did, be sure to clean them out again. You are now ready to lay
reinforcing down. The usual procedure is to use wire mesh weighing 40 pounds per 100 square feet.
If you can't get it,
best substitute that I have seen is heavy turkey wire (welded type). Roll out
mesh. Put some small rocks under it so that when
concrete is poured,
mesh will be in
slab. Along
bottom of
trench use two %-inch reinforcing bars. You're actually building a concrete beam around
perimeter of
building.
You are now ready for
big pour. By this time you will probably be willing to call for transit mix. When you ask for this prepared mix, tell them you want
kind that reaches a minimum compressive strength of 2,000 pounds per square inch in 28 days. If you are going to mix your own concrete, use I part portland cement, 2 parts sand, 4 parts coarse aggregate, and enough water to make it sloppy.
The actual water content should not exceed 7|/2 gallons per bag of cement. The table will help you to figure how much you will need. The thickness of
concrete slab should be a minimum of 3 inches. After you have
framing up, you will want to add one more inch of smooth concrete for your final finish (I part cement, 3 parts sand).
You can also add color to this batch if you don't like
natural gray of
concrete. There you are. Except that you should also put some 6-inch stove bolts along
outer edge of
slab, about 8 feet on center, starting roughly I foot from
corner, to fasten your sill. If you are going to use
cottage year-round and are building in
northern states, insulate
outside perimeter with Fiberglas boards.
If you use
slab described, be sure that
soil is porous. Heavy clay or stiff soil will require
building of foundation walls to
frost line to prevent heaving.

About the Author: Jack Hudson is a writer for http://www.log-cabin-plans-n-kits.com and http://www.best-house-n-home-plans.com/. These two sites work collectively as a resouce for the planning and building of log cabins as well as choosing from different house plans. Visit one of these sites for informative articles as well as free TIPS for building a log home or choosing a house plan.