I am about to pour a 4 inch thick, 20 ft by 30 ft cement floor slab.
I am located in the Philippines. This will be on clay type soil.
I am wondering about reinforcement. I was thinking of digging
6 inch wide by 4 inch deep "trenches" spaced 10 feet apart,
in the ground before pouring the slab to create a "backbone"
that would hopefully strengthen the slab. This would effectively
create a "beam" under the slab. The trenches would be in a
tic-tac-toe configuration. If you look at the website below, I would
keep the "trenches" in line with the concrete posts.
Would this help? Or would this cause problems?
I do not have access to reinforcing wire mesh, and they have indicated
to me that rebar is not needed. I would like to reinforce the slab.
I have a website that shows the progress of the house being built:
Building a house in the Philippines is an experience you will never
forget. There are many practices that would cause you to shudder.