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Accession Number:
AD0883922
Title:
Bond Allowance for Grouted Prestressed Steel.
Corporate Author:
NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA
Report Date:
1958-04-17
Abstract:
A limited number of grout mixes and grout-placing methods commonly used to provide bond between post-tensioned prestressing wires or bars and concrete structural elements were evaluated according to the primary criterion of bond-strength as measured by pull-out tests and according to additional criteria such as ease of placing, availability, and cost. The use of at least 40 psi pressure in the grouting cavity was found to be an important factor in the development of bond-strength. It was found that grout should be placed with a positive-action pump. A grout mix proportioned by weight of one part Portland cement, type I, and one-third part of water was most satisfactory from the overall standpoints of bond-strength, ease of placing, availability, and cost. Author
Descriptive Note:
Technical note,
Pages:
0020
Distribution Statement:
Availability Microfiche copies only.
File Size:
0.00MB
