Question: What is Reactive Powder Concrete? Answer: Reactive Powder Concrete is a high strength ductile material formulated from a special combination of constituent materials. These materials include portland cement, silica fume, quartz flour, fine silica sand, high-range water-reducer, water, and
BENEFITS OF SILICA FUME IN HPC
Terence C. Holland, Silica Fume Association Many designers still look at silica fume as though it were a new material. Silica fume is not new any longer—it has been used in concrete since the 1950s in Norway and since the
LETTERS TO THE EDITOR
The following letters were received concerning the article entitled “Capping Cylinders for Testing High Strength Concrete,” in Issue No. 14. Nicholas J. Carino, National Institute of Standards and Technology (NIST) In 1994, NIST and FHWA published the results of a
COUNTY BRIDGES IN OHIO
Stephen Mary, Hamilton County, Ohio and Richard A. Miller, University of Cincinnati Many bridges in the USA are designed and maintained by city and county engineers. These bridges must meet the same strength, serviceability, and durability requirements as state-owned bridges.
SOUTH DAKOTA’S FIRST HPC BRIDGE
Hadly G. Eisenbeisz, South Dakota Department of Transportation The South Dakota Department of Transportation’s first use of high performance concrete (HPC) in an entire superstructure became a reality in the summer of 1999 with the construction of a railroad overpass