A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Some Factors Influencing Durability of Concrete Flaming Gorge Dam Colorado River Storage Project
Laboratory tests determined treatment of marginal quality aggregate necessary to produce durable concrete for Flaming Gorge Dam in north-eastern Utah, an area of severe climatic exposure. Results indicated that improving aggregate quality by heavy media processing increased durability of the resulting concrete. A pulp (slurry of ferrosilicon-magnetite and water) density of 2.50 specific gravity was found to be optimum from the standpoint of economy and improvement in aggregate quality. Calcined shale pozzolan selected to improve workability and reduce heat generation of concrete decreased freezing and thawing durability. Various temperatures of pozzolan calcination were investigated and the optimum temperature determined to be 1600F. Durability of hardened concrete containing pozzolan could not be positively related to temperature of calcination but was found to be reduced by use of pozzolan. Results reported provide the basis for the specifications requirement to omit pozzolan from exposed (exterior) concrete in the faces of the dam. (Author)
Some Factors Influencing Durability of Concrete Flaming Gorge Dam Colorado River Storage Project
Laboratory tests determined treatment of marginal quality aggregate necessary to produce durable concrete for Flaming Gorge Dam in north-eastern Utah, an area of severe climatic exposure. Results indicated that improving aggregate quality by heavy media processing increased durability of the resulting concrete. A pulp (slurry of ferrosilicon-magnetite and water) density of 2.50 specific gravity was found to be optimum from the standpoint of economy and improvement in aggregate quality. Calcined shale pozzolan selected to improve workability and reduce heat generation of concrete decreased freezing and thawing durability. Various temperatures of pozzolan calcination were investigated and the optimum temperature determined to be 1600F. Durability of hardened concrete containing pozzolan could not be positively related to temperature of calcination but was found to be reduced by use of pozzolan. Results reported provide the basis for the specifications requirement to omit pozzolan from exposed (exterior) concrete in the faces of the dam. (Author)
Some Factors Influencing Durability of Concrete Flaming Gorge Dam Colorado River Storage Project
G. O. Briggs (author)
1966
44 pages
Report
No indication
English
| Engineering Index Backfile | 1961
Flaming Gorge dam and powerplant
Engineering Index Backfile | 1968
Deformation measurements of Flaming Gorge dam
| Engineering Index Backfile | 1968