Masonry Magazine April 1969 Page. 21
Books
(Continued from page 16) and solvents which make them ideal in certain phases of concrete construction, repair, and maintenance.
In 1961, shortly after the formation of ACI Committee 503, a total of 50 million lb of basic epoxy-resin was used in all industry. Of this quantity, approximately 30 million lb went into coatings with one-half of that amount being used in some way with concrete and masonry.
In 1966, the total industry used 150 million lb of the basic epoxy-resin, of which 65 million lb was used in coatings and 40 percent of the coatings were used with concrete. It is estimated by 1970, the entire industry will use 225 to 250 million Ib of epoxy annually with an ever increasing amount going to concrete.
This symposium volume presents papers related to job applications and application techniques, test methods, and research, and to the development of specifications for the use of these materials with concrete.
Included in the 12 papers of this symposium volume are: the history and development of epoxy-resins over the past 20 years, epoxies in construction and maintenance, surface treatment for portland cement concrete pavements, bonding concrete to concrete, structural repair of cracked concrete, patching and grouting, repair of bridge pavements, repair of cavitation damage, stresses in epoxy compounds, methods of evaluation, and application specifications guidelines.
Concrete Construction Handbook. Edited by Joseph J. Waddell, Riverside Division, American Cement Corporation, and prepared by a staff of specialists. 898 pages plus index; 616 illustrations; 6 x 9; McGraw-Hill Handbook Series; $27.50. Publication date: December, 1968.
The Concrete Construction Handbook is a practical, concise volume designed to serve as a ready reference book for the man on the job and as a source of information for anyone interested in any phase of concrete construction. The material is presented in a practical, how-to-do-it fashion without a mass of supporting evidence and theory, and maximum use of tables, charts, and drawings helps furnish the reader with practical working information and assistance. The Handbook is a complete guide to the most difficult and tricky of all operations in the construction industry- the mixing, placing and curing of specification-quality concrete.
Included for the first time in any (Continued from page 25) masonry April, 1969
Three New Accessories for Morgen Scaffolding
FORK LIFT BRACKET
Really cuts the cost of moving scaffolding! One man operating a fork lift truck can move completely assembled pairs of Morgen towers without the help of laborers. The operator drives the fork lift up to the towers and engages the pins which secure the bracket to the tower by remote control from his seat. Towers up to 40 feet high can be moved from wall to wall, or even from building to building.
SCAFFOLDING TRAILER
This rugged trailer holds 16 fully assembled 20%-foot towers and carriages for easy transporting from job to job or for storage between jobs. The trailer eliminates the need to disassemble the towers and remove the carriages after each use. Fully assembled towers can be moved intact to the next job behind a pick-up. The trailer is equipped with a self-contained hydraulic brake system for safe highway towing.
PILASTER BRACKET
Lets you easily scaffold buildings that were real headaches until now- buildings with pilasters at frequent intervals. The bracket is used to support an extended masons' platform between the pilasters. The set includes a pair of arms mounted on a 2 x 3 square tubing member that spans between two carriages. In the event that more than one pair of arms is required, additional arms can be added on the square tubing member.
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MORGEN MANUFACTURING CO. Box 160-G4 Yankton, S. D. 57078
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