4" slab with 6 X 6 W 1.4 X W1.4 WWR 2

[davesatt]

What are most people seeing the contractor do when this type floor is specified ?
How close do you need the chairs to hold mesh this light of mesh in place. 12" ? Does anyone allow the contractor to walk in mesh or pull up mesh ? How can the contractor get the chairs in place in an enclosed building (he can't pump from over head or pour from the sides) with a lazer screed and concrete trucks on the grade ?

 

[hokie66]

jike,
The best way of keeping the cracks at the top surface tight is to keep them tight where they originate, which is at the bottom. I know this is not the majority thinking, but to me and the rest of the minority it is logical. The best paper I have seen on the subject is "A Structural Look at Slabs on Grade" by Cesar Kiamco, published in the July 1997 issue of the Concrete International magazine.

 

[jike]

Thanks hokie66, I will check it out!