TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

RELATIONSHIP BETWEEN ELASTIC MODULUS AND PERMEABILITY OF DAMAGED CONCRETE

Accession Number:

00984635

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States
Order URL: http://www.trb.org/Main/Public/Blurbs/155509.aspx

Find a library where document is available


Order URL: http://worldcat.org/isbn/0309094909

Abstract:

The study examined the effects of selected damage mechanisms on the dynamic elastic (Young's) modulus (E sub d) and air permeability index (API) of concrete. The relationship between E sub d and API in damaged concrete and the use of E sub d and API to determine both the extent of damage due to various exposures and the presence and extent of damage gradients are reviewed. The E sub d and API were determined by using 25-mm-thick disks sawed from high-strength and conventional-strength concrete cylinders, before and after static fatigue damage; from cores removed from a lightweight, precast, prestressed concrete beam after exposure to intense fire; and from cores removed from an elevated concrete slab after exposure to thermal shock and subsequent cryogenic temperatures. The findings of the study suggested that E sub d and API were linearly related for a given set of raw materials until damage was significant, that analyzing concrete disks at 25-mm (1-in.) depths provided insight into damage gradients, and that the durability of high-strength concrete in service may have been better than conventional-strength concrete under similar stress conditions. E sub d and API were found to be effective tools in the assessment of damaged concrete and gradients of damage. API was found to be particularly sensitive to fire damage and associated severe drying.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1893, Concrete 2004.

Monograph Title:

CONCRETE 2004

Monograph Accession #:

00984628

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Dilek, U
Leming, M L
Guth, D

Pagination:

p. 53-60

Publication Date:

2004

Serial:

Transportation Research Record

Issue Number: 1893
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309094909

Features:

Figures (5) ; Photos (1) ; References (12) ; Tables (1)

Subject Areas:

Highways; Materials; I32: Concrete

Files:

TRIS, TRB, ATRI

Created Date:

Jan 27 2005 12:00AM

More Articles from this Serial Issue: