(ÉªmËpÉÉrd) adj. 1. weakened, diminished, or damaged: impaired hearing; to rebuild an impaired bridge. 2. functioning poorly or inadequately: Consumption of alcohol results in an impaired driver. 3. Facetious. deficient or incompetent (prec. by a noun or adverb): VCR-impaired; morally impaired.
According to our concrete slab material estimator, the average minimum cost per square foot of a concrete slab is $1.36 and the maximum is $1.88. By comparison, the price per square foot for a cement slab is $5.50. Just know that even if you do not hire a pro, there are additional costs that come with all concrete slab projects.
Simple concrete patio costs. A fairly small and simple concrete patio measuring 10 feet by 20 feet costs $1,000 to $2,000 as of 2010, according to the website Cost Helper. Although expensive for such a small area, this price includes professional site preparation, labor and concrete costs.