Applying control-joint filler demands balancing hardness to transfer loads, flexibility to move with the slabs and application timing to minimize tearing. A control joint (or contraction joint) is ...

A California-based consultant with 52 years of experience in the concrete industry has invented a device that, he says, makes installing ground slab joints easier, cheaper and safer than using ...

MassDOT attributed the collapse to “recent freeze/thaw cycles,” which cause “concrete to become saturated, freeze, and then delaminate as temperatures rose.” The joint that failed was ...