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Title:

DURABILITY OF VERY-EARLY-STRENGTH LATEX-MODIFIED CONCRETE AGAINST FREEZE-THAW AND CHEMICALS

Accession Number:

00984629

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

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

Abstract:

This study focused on the durability of very-early-strength latex-modified concrete against freeze-thaw and chemical exposure by using water absorption, freeze-thaw resistance, deicer salt scaling, and chemical resistance tests. The experimental variables were latex content (latex solids and cement as percentages) and water-cement ratio (w/c). This study examined five levels of latex content (0%, 5%, 10%, 15%, and 20%) at a constant slump and three w/c's (0.36, 0.38, and 0.40) at a constant latex content of 15%. The results were as follows: the water absorption at 15% latex content was less than 50% at 0% latex content and supported the theory of a continuous polymer film that hinders the penetration of water. Within the range of this study, both the latex-modified and nonmodified concrete exhibited good freeze-thaw performance, although the latex-modified exhibited superior properties. In both the weight loss and visual evaluations, the deicer salt scaling test indicated improved performance as the latex content increased. In the chemical resistance tests, the weight loss of latex-modified concrete decreased as the latex content increased for both sulfuric and hydrogen chloride acid exposures. However, in the calcium chloride solution test, the weight change varied from a slight gain with no latex to a slight loss at 20%.

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:

Yun, K-K
Kim, D-H
Choi, S-Y

Pagination:

p. 1-10

Publication Date:

2004

Serial:

Transportation Research Record

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

ISBN:

0309094909

Features:

Figures (11) ; References (10) ; Tables (3)

Uncontrolled Terms:

Latex content

Subject Areas:

Highways; Materials; I32: Concrete

Files:

TRIS, TRB, ATRI

Created Date:

Jan 27 2005 12:00AM

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