Coral, Copra, and Concrete
Author : Daniel W. Urish
Publisher :
Page : pages
File Size : 44,32 MB
Release : 2015-06
Category : Chagossians
ISBN : 9781578649570
Author : Daniel W. Urish
Publisher :
Page : pages
File Size : 44,32 MB
Release : 2015-06
Category : Chagossians
ISBN : 9781578649570
Author : United States. Department of Housing and Urban Development. Office of International Affairs
Publisher :
Page : 3 pages
File Size : 48,17 MB
Release : 1970
Category :
ISBN :
Author : William R. Lorman
Publisher :
Page : 78 pages
File Size : 18,46 MB
Release : 1960
Category : Aggregates (Building materials).
ISBN :
Author : United States. Army. Washington District
Publisher :
Page : pages
File Size : 21,76 MB
Release : 1952
Category : Concrete
ISBN :
Author :
Publisher :
Page : 616 pages
File Size : 14,10 MB
Release : 1940
Category : Great Britain
ISBN :
Author : William R. Lorman
Publisher :
Page : 60 pages
File Size : 45,58 MB
Release : 1964
Category : Aggregates (Building materials).
ISBN :
The water permeability of hardened coral concrete was investigated to learn the effects of mix design factors. The independent variables were aggregate type and source, watercement ratio, cement content, and pozzolanic admixture. The test data demonstrated that the least permeable coral concrete contained Eniwetok aggregate and after 3 months exposure had a coefficient of permeability approximating 0.000001 inches per hour for the liquid phase and approximating 0.000005 pounds per square inch per hour for the vapor phase. These values were equivalent, for all practical purposes, to the corresponding coefficients of the least permeable reference concrete. The least permeable coral concrete had a gross water-cement ratio not exceeding 5.4 gallons of water per bag of cement and a cement factor of 9.0 bags per cubic yard of concrete. The use of calcined opaline shale, as a partial replacement of portland cement, served to make the coral concrete test specimens stronger, more watertight, and more damp-proof than was otherwise possible, all other factors being equal. (Author).
Author :
Publisher :
Page : 540 pages
File Size : 30,13 MB
Release : 1954
Category : Industrial arts
ISBN :
Author : Paul A. Howdyshell
Publisher :
Page : 0 pages
File Size : 33,19 MB
Release : 1974
Category : Aggregates (Building materials)
ISBN :
Author :
Publisher :
Page : 3 pages
File Size : 48,94 MB
Release : 1958
Category : Aggregates (Building materials)
ISBN :
Author : Paul A. Howdyshell
Publisher :
Page : 42 pages
File Size : 23,86 MB
Release : 1974
Category : Aggregates (Building materials)
ISBN :