Frequently Asked Questions
Are there different grades of concrete?
There are two types of concrete mixes, nominal mix and design mix. … Nominal mixes for grades of concrete such as M15, M20, and M25 are generally used for small scale construction. Large structures have high strength requirements, thus they go for higher grades of concrete such as M30 and above.
How thick does a concrete path need to be?
The strength and durability of the concrete walkway is impacted by the thickness of the slab. Most builders pour concrete walkways about 4 inches thick.
How much is labor for concrete work?
Labor Costs The average cost of pouring concrete is anywhere from $1.36 to $4.99 per square foot. Thus, let's take an approximate median and assume labor costs to be $3 per square foot. This means that 400 square feet could cost $1,200 for labor.
Which grade of concrete is used for slab?
The high strength concrete includes M60 and M80 grades. Generally M10 and M15 grades of concrete are used for levelling course, and bedding for footings. Standard concrete and concrete of grade M20 is applicable for Reinforced Cement Concrete (RCC) works for slabs, beams, columns and so on.
What is good quality concrete?
A concrete is said to be of good quality, if it is strongest, densest, most workable and most economical for the job for which it is prepared. Amount of cement used in concrete should be low and that of aggregate should be high.