vi Acknowledgments The author and publisher would like to thank the following individuals for their valuable input in the development of Modern Masonry. The author would like to especially thank GCC Ready Mix in Watertown, SD, for their permission to take pictures of their facility and concrete testing procedures. Air Vol Block American ConForm Industries, Inc. American Plywood Association Anchor Wall Systems, Inc. Anderson Corporation Areté 3 Ltd. ASG Corporation Besser Company Bomanite Corporation Brick Industry Association Colorado Masonry Institute Concrete Reinforcing Steel Institute Dayton Superior Donley Brothers Company Eldorado Stone Corporation Elgin-Butler Company Eneco Corporation Fireplace Professionals, Inc. in Sioux Falls, SD Fox Blocks Gage Brothers in Sioux Falls, SD GCC Dacotah Cement Plant GCC Ready Mix in Watertown, SD General Shale Brick Georgia Marble Company Glen-Gery Corporation Heatilator, Inc. Indiana Limestone Institute Interpace Corp. ITW Ramset/Red Head Jack Klasey John R. Bare & Associates Johnson Level and Tool Manufacturing Company, Inc. Kawneer Company, Inc. Kimble Manufacturing Company LiteForm Technologies Marco Manufacturing, Inc. Marshalltown Company MK Diamond Products, Inc. Nancy Henke-Konopasek National Concrete Masonry Association National Terrazzo and Mosaic Association, Inc. NRG Insulated Block, Buffalo, NY Occupational Safety & Health Administration Oldcastle APG South, Inc. DBA Georgia Masonry Supply Portland Cement Association Robinson Brick Company Stanley Goldblatt Stone Products Corporation The InterDesign Group, Indianapolis, Indiana The Majestic Co., Inc. Tilt-up Concrete Association Trenwyth Industries, Inc. US Department of Labor Wilkening Fireplace Company Wire Reinforcement Institute