Technological advances in concrete-making materials, production equipment, and processes have enhanced the possible innovative uses of concrete in a wide range of applications. Specifications for concrete mixtures, however, continue to be prescriptive, which often limits the ability to develop and use innovative products and construction methods. Specifications should be structured to leverage the expertise of the various stakeholders to deliver a high-quality structure with the desired service life to the owner. …
Author Archives : Colin Lobo, Ph.D., P.E.
Colin L. Lobo is Executive Vice President of the Engineering Division of the National Ready Mixed Concrete Association. He is a member of ACI Committees 318 (building code), 301 (specifications), and 329 (performance requirements for concrete). He is active on various ASTM committees and with transportation organizations. (clobo@nrmca.org)
Who Should Get Them?
The process of testing concrete and quality assurance criteria for ready mixed concrete delivered to projects are reasonably well established. The owner or the owner’s representative hires an independent testing and/or inspection agency to perform quality assurance functions during the construction of the Work. Industry standards provide requirements for the following: …