Title: Choosing Concrete Proportions for Durable Floors
Author(s): Carl Bimel
Publication: Concrete International
Appears on pages(s): 60-62
Keywords: durability; mixture proportions; slab-on-ground; specifications
Extremely low water-cementitious materials ratios are often specified for slab-on-ground construction, making it unnecessarily difficult for workers to properly finish the slab and increasing the tendency of the slab to crack. In this article, the origin of this requirement is traced back to misinterpretation of code provisions dating back to 1956, and the proper specification of concrete properties in floor slabs is discussed.