Behavior of joints using reinforced polymer concrete

Document Type

Conference Proceeding

Publication Date

12-1-1985

Abstract

The testing program of reinforced concrete joints consisted of six berun column .1oints with varying strength cementing agents in the joint region: 1) normal strength concrete (fc' = 4,000 psi); 2) high strength concrete (fc' = 10,000 psi); and 3) polymer concrete (fc' = 12,000 psi), Half of these joints contained 1-1/2 percent by volume of hooked end fibers, The polymer used in the joint region was Sika Stix 350, The fibers used were dramix fibers (30 mm, long by,50 mm. in diameter), From the test series on joints of this investigation, information on the following w ill he described: strength, ductility, energy absorption and dissipation, mechanisms of failure, and mechanisms of stiffness and energy dissipation under cyclic loading, From the analysis of the results, i t can he concluded that the polymer concrete used in the joint region provided: 1) better bond; 2) better confinement of the joint region; 3) a stiffe r member; 4) a higher moment capacity; 5) higher shear strength; 6) more ductility; 7) far less cracking; and 8) significant improvement in the energy dissipation capacity than did the 4,000 psi and 10,000 psi portland cement concrete used in the joint area. The addition of fibers helped to strengthen the joint region, and improve the energy absorption and dissipation capacity of the joints with normal and high strength concrete, Also, the addition of fibers to the beam column with polymer in the joint region made made the joint area act elastically while the inelastic region was formed a distance 10 inches from the face of the column in the normal strength concrete beam. The benefits and disadvantages of using a polymer concrete instead of high strength or normal concrete in seismic construction of a joint will be described,

Identifier

85116428152 (Scopus)

ISBN

[9780870317187]

Publication Title

American Concrete Institute ACI Special Publication

ISSN

01932527

First Page

279

Last Page

312

Volume

SP-089

This document is currently not available here.

Share

COinS