Almost from the beginning of the use of reinforced concrete as a structural material, attempts were made to improve the quality and strength of the material by applying prestressing forces. In a patent applied for in 1886 entitled "Constructions of Artificial Stone and Concrete Pavements", P. H. Jackson of San Francisco described several methods of applying prestress forces by stretching ties by turnbuckles, screws and nuts and wedges. Later in 1888 C. F. W. Doehring in Germany, and in 1896 J. Mandl in Austria secured patents for applications of steel and concrete that may quite properly be described as prestressed concrete.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.111184 |
| Date | January 1957 |
| Creators | Issen, Lionel. |
| Contributors | De Stein, J. (Supervisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Engineering. (Department of Engineering.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: NNNNNNNNN, Theses scanned by McGill Library. |
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