Tag Archives: Concrete

Taking a new approach to concrete

repair_Chapter1_ChimneyRehabilitation

In 2006, the Strategic Development Council of the ACI Foundation (established by the American Concrete Institute) recognized the need to set minimum requirements for strength, serviceability, and durability for existing structures.

Read More

Specifying and achieving a level composite steel floor

floor_Overall photo 3

Composite steel assemblies are an efficient and popular structural option for floor construction. Figure 1 shows a typical assembly, consisting of a steel beam, metal deck, concrete slab, and shear connectors. The composite action between the steel beam and concrete provided by shear connectors creates the composite properties that make the system a very stiff and strong structural element.

Read More

Proposed ASTM test method to measure smoothness of concrete

bigstock-Construction-Worke

The American Society for Testing and Materials (ASTM) Subcommittee E06.21 has suggested a new test method to help minimize the confusion in quantifying texture value at the concrete surface. WK49335, Test Method for Concrete Micro Surface Texture will be used to measure concrete surfaces with a contact stylus instrument—a profilometer.

Read More