The ABCs of floor flatness and levelness
What do we mean by floor flatness and levelness? ACI 117.1R-14 defines flatness as “deviation of a surface from a plane” and levelness as “deviation of a line or surface […]
Specifications
How many cylinders: a pot roast story
How many cylinders does it take to determine the compressive strength of concrete for acceptance testing? To quote ACI 318, A strength test shall be the average of the strengths […]