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Footings are an important part of foundation construction. They are typically made of concrete with rebar reinforcement that has been poured into an excavated trench. The purpose of footings is to support the foundation and prevent settling.
Slab-on-grade foundation. As the name suggests, a slab is a single layer of concrete, several inches thick. The slab is poured thicker at the edges, to form an integral footing; reinforcing rods strengthen the thickened edge. The slab normally rests on a bed of crushed gravel to improve drainage.
Concrete Calculator - Figure out how much concrete you'll need for your footings. You can look up the recommended footing size, based on the size and type of house and the bearing capacity of the soil.
A guide to common concrete footing problems and their solutions: Pouring concrete footings in wet soil, fixing misplaced footings and more.
The strength and compactness of soil is important when pouring concrete footings. See a chart of soil bearing capacities for bedrock, sand, clay and more.
The construction must be done correctly in terms of the type of foundation being formed, avoiding problems with settlement, and properly preparing the subgrade through final curing stages. Each phase of foundation construction has necessary requirements and components upon which a structure depends.
Waterproofing likes a clean wall. Here's what I recommend for a surface preparation procedure: Survey the entire surface to be waterproofed. Identify special problems, such as water on footings, concrete forms not removed, footings not dugout, and pipe penetrations not prepared.
Luckily, there are ways to repair a concrete foundation without having to tear it out and start from scratch. If you suspect trouble, do the following: Examine the foundation yourself for obvious issues; Have a repair expert do a home foundation inspection; Consult with a structural engineer if necessary
Use the footing calculator to calculate the sides of the porch and the steps. Use this free concrete calculator to quickly find out how many bags, yards or cubic meters you need. Simply enter length, width and thickness.
The nationwide concrete cost ranges between $140 and $170 or more per cubic yard. The average ready mix price was $156.96 per cubic yard in the second quarter of 2023. Expect to pay $5.50 to $9.00 per square foot for materials and labor. Rising material, labor, and transportation costs have driven up concrete prices in recent years.