Concrete Standards and Requirements

Colin L. Lobo is Senior Vice President of the Engineering Division of the National Ready Mixed Concrete Association in Silver Spring, Maryland. Besides managing the Engineering Division, his responsibilities include managing programs of NRMCA Research, Engineering and Standards Committee and the NRMCA P2P Steering Committee, coordinate and report on some of the Association's research studies, provide information to the membership and others, coordinate and administer NRMCA technical training programs, and develop NRMCA technical publications. Colin manages the NRMCA certification programs for Ready Mixed Concrete Production Facilities, Concrete Technologists and Pervious Concrete Contractors. Colin has been with NRMCA since 1991. Colin holds a Bachelor of Engineering Degree in Civil Engineering from Mysore University in India. He received a Masters of Science Degree from Northeastern University in Boston and a Ph.D. from Purdue University in West Lafayette, Indiana. He has published several papers as a result of his research work at Purdue and NRMCA. Colin is an active member on various committees of the American Society for Testing and Materials (ASTM) and the American Concrete Institute (ACI). He is a member of the American Society of Civil Engineers (ASCE) and participates in the technical committee work of the Transportation Research Board (TRB). Colin has been a member of technical task groups and research panels of AASHTO and FHWA. He is a registered professional engineer in the State of Maryland. On ACI, Colin is a member of ACI Committees 318 (Building Code), 301 (Specifications), 214 (strength testing), 211 (mixture proportioning), and educational committee E701 on concrete materials. He serves as the recording secretary of ACI 301. He is a Fellow of the ACI. On ASTM, Colin is a member of ASTM Subcommittees 09.94 data analysis, 09.96 (CCRL), 09.40 (ready mixed concrete), 09.60 (fresh concrete tests), 09.61 (strength testing), 01.10 (cement specifications) and many others. He serves as recording secretary for 09.60 and 09.40. He serves as NRMCA's representative on the FHWA Concrete Pavement Technology Program Engineering ETG (Task 65), Performance Specifications ETG, Mixture Optimization ETG, PCA's Product Standards and Technology Subcommittee and other technical committees as pertinent to the goals of the NRMCA. Colin has coordinated and reported on research activities at NRMCA related to measurement of water content in fresh concrete, use of wash water in ready mixed concrete, effects of reuse of returned concrete on concrete properties, testing high strength concrete and cores, alkali silica reactivity tests, reuse of returned concrete, maturity of high volume fly ash concrete, concrete durability research and several smaller research projects.