Which type of concrete work is primarily affected by pouring speed limits?

Pouring speed limits are most significantly relevant to walls because the vertical nature of wall construction can lead to issues with proper bonding and setting of the concrete if poured too quickly. When concrete is poured at a rapid pace, it can create problems such as segregation, where the heavier aggregate settles at the bottom, leaving a weaker mix at the surface.

In walls, maintaining an appropriate pouring speed ensures that the concrete can adequately fill the forms and achieve the intended strength and finish. Proper control of the pouring speed helps in reducing the risk of defects, such as honeycombing or voids, thus ensuring the structural integrity of the wall. Other types of concrete work, such as foundations, columns, and slabs, also require attention to pouring speed, but the unique characteristics of wall forms make them particularly sensitive to this factor.