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National Ready Mixed Concrete Company. Encino, California. The National Ready Mixed Concrete Company is driven by outstanding customer service, quality products, on time delivery, operating with the highest environmental standards and industry leading solutions.
according to ISO 14025:2006 and specifically, the NSF PCR for ready-mix concrete. The goal of this study is to provide information to support the development of an EPD for 72 ready-mixed concrete product ranges covering a significant portion of NRMCA member production.
concepts of specifications for ready mixed concrete addressed in industry standards published by ACI or ASTM International. Provisions of ACI 318-19, Building Code for Structural Concrete, as it relates to requirements concrete ingredient materials and mixtures, production and delivery are incorporated in this document.
The National Ready Mixed Concrete Association's Quality Control Manual is comprised of three separate publications, Section 1, the Ready Mixed Concrete Quality Control Guide, Section 2, the Ready Mixed Concrete Quality Control Checklist and Section 3, the Plant Certification Check List.
National Ready Mix is the first concrete supplier in Southern California to provide provide 3rd party verified Type III EPD’s, convert the majority of their hauling and delivery fleet to renewable natural gas (RNG), offer low-carbon concrete mixes, and adopt low-carbon cement.
The concrete has entrained air or the air content is higher than desirable for the application. The concrete mixture is sticky from higher cementitious material or sand-fines content. Environmental conditions during placement are con-ducive to rapid drying causing the surface to “crust” and appear ready to finish.
The first defense against corrosion of steel in concrete is quality concrete and sufficient concrete cover over the reinforcing bars. Quality concrete has a water-tocementitious material ratio (w/c) that is low enough to slow down the penetration of chloride salts and the development of carbonation.
