MSD Technical Reports
Importance of Concrete Cover in Bond Behavior of Concrete structures
2014-01-25 13:20:37 The bond between reinforcing bars and concrete has been acknowledged as a key to the proper performance of reinforced concrete structures for well over 100 years. In fact the performance of reinforced concrete structures depends on adequate bond strength between concrete and reinforcing steel. It is now clear that bond, anchorage, development, and splice strength are structural properties, dependent not only on the materials but also on the geometry of the reinforcing bar and the structural...
Flexural and Shear Strengthening of URM Walls with FRP Systems
2014-01-25 13:20:51 The retrofitting of existing masonry with FRP systems is of particular relevance for the case of URM walls to improve capacity under out-of-plane and in-plane loads. It is expected that the use of FRP systems in masonry applications will become a more common staple for design professionals and contractors. The American Concrete Institute (ACI) Committee 440 has recently published a design guide for strengthening of masonry with FRP systems. This report is an overview on the background for...
Causes of Damage to Concrete
2014-01-25 13:22:40 The more common causes of damage to Reclamation concrete are discussed in this report. The discussion for each cause of damage consists of (1) a description of the cause and how it damages concrete and (2) a discussion and/or listing of appropriate methods/materials to repair that particular type of concrete damage. The format for the text of this report was chosen in recognition of the importance of first determining the cause(s) of damage to concrete before trying to select the repair...