Pouring New Concrete Roof Between Walls

X 8 in 12 in ft.

Pouring new concrete roof between walls.

X 150 pcf. Dowel into the existing floor on the 2 sides. It will also continue along an rv area. I have a concrete front stoop that drains some water into the basement so i am going to knock it out and pour a new slab with better grading.

The slab will be about 4 feet square and fits into a corner so that two sides abut the house and two do not. Allow for a 2 wide by 4 8 high floor ledge on the interior of the new stem wall. They transmit the vertical dead load and live load to the bearing walls. You can join the new concrete right to the old concrete this is called a concrete construction joint.

It was poured at about 1 4 ft to meet. Build a concrete block or poured concrete stem wall connecting the existing again doweled in. Pour and level the concrete. The chemical approach involved mixing up a liquid bonding agent that helps bond new concrete products to old.

Wet the concrete thoroughly and then cover it with the sheeting of your choice using bricks rocks or other heavy items to hold it in place. Remove the sheeting or blanket daily wet the. If the patio butts against the house this is where an concrete isolation joint should be installed. I have a new slab that was poured about 8 months ago.

Drag a straight 2x4 screed board across the top of the concrete forms to level the concrete. Floor and roof systems for use with loadbearing structural concrete masonry walls serve three primary functions. And they act to support the walls from out of plane loads. Will we need expansion board or nothing.

Pour a footing matching the height of the existing footings doweled together. We are having a patio poured against the house do we need to have any special barrier between the house and the new concrete being poured. Have a helper add or remove concrete in front of the screed as you pull it. The edge of the existing concrete that was sawed should be drilled and doweled so the new concrete won t separate lift or settle from the old concrete.

Concrete foundation wall sitting on a footing weighs or applies a load to the footing of 9 ft. Make multiple passes if needed to create a flat evenly filled area. The footings were poured and inspected on monday.