Accession Number:

AD0684422

Title:

PRELIMINARY INVESTIGATIONS OF PRESTRESSED CELLULAR CONCRETE STRUCTURES.

Descriptive Note:

Technical note,

Corporate Author:

NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF

Personal Author(s):

Report Date:

1966-11-16

Pagination or Media Count:

27.0

Abstract:

The note describes work accomplished during the first phase of a research and development program concerned with concrete cellular block units joined in prestressed configurations to form structural elements. The preliminary work involved a literature survey, which included a search of patents on related concepts, and an experimental program involving testing of two five-foot square slabs assembled of concrete cellular block units with steel rods used as prestressing tendons. Applied loadings were of concentrated and of distributed loading patterns. Parameters evaluated during these experiments included interface reactions of the blocks, changes in magnitude and patterns of prestress, and ultimate load-bearing capacity of the two slabs. Separate experiments involved tests of concrete strength, prestress rod strength, and assemblages of the blocks and rods in the form of beams and columns. Parameters to be investigated later include variations in block unit configuration, changes in block unit concrete strength, block unit reinforcing of mat and random types, and the effects of high-bond filling material at the block interfaces. Author

Subject Categories:

  • Construction Equipment, Materials and Supplies
  • Structural Engineering and Building Technology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE