State-of-the-Art Report on Use of Limestone in Cements at Levels of up to 15%

This document is to serve as background technical information for engineers, specifiers, and other concrete technologists on use of limestone in hydraulic cements in amounts up to 15% (focusing on amounts between 5% and 15%). The document also provides supporting data for standardization of limestone blended cements in ASTM C595 and AASHTO M240. Environmental benefits are noted as well as a history of use of cements with limestone. The chemical and physical effects of limestone on fresh and hardened properties of concrete are emphasized. REFERENCE Tennis, P. D.; Thomas, M. D. A.; and. Weiss, W. J., State-of-the-Art Report on Use of Limestone in Cements at Levels of up to 15%, SN3148, Portland Cement Association, Skokie, Illinois, USA, 2011, 78 pages. Errata Corrections, September 2014: 1. Table 1.7, page 9: entries for CO2 calculations. 2. Spelling of Irassar throughout.