Design and evaluation of high-volume fly ash (HVFA) concrete mixes, report B : bond behavior of mild reinforcing steel in HVFA concrete.

Missouri University of Science and Technology

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

i

Design and evaluation of high-volume fly ash (HVFA) concrete mixes, report B : bond behavior of mild reinforcing steel in HVFA concrete.

2012-10-01
By Missouri University of Science and Technology

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English

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Details:

Corporate Creators:

Missouri University of Science and Technology
Subject/TRT Terms:

[+]

Bond Strength (Materials) Cement Additives Concrete Construction Economic Impacts Fly Ash Mix Design Pavements--Performance Performance Tests Portland Cement Portland Cement--Additives Recycled Materials Reinforced Concrete Reinforced Concrete--Testing
Publication/ Report Number:

TRyy1110
Resource Type:

Tech Report
Geographical Coverage:

Missouri
Corporate Publisher:

Missouri. Department of Transportation
Abstract:

The main objective of this study was to determine the effect on bond performance

of high-volume fly ash (HVFA) concrete. The HVFA concrete test program consisted of

comparing the bond performance of two concrete mix designs with 70% cement

replacement with Class C fly ash relative to a Missouri Department of Transportation

(MoDOT) standard mix design.

Two test methods were used for bond strength comparisons. The first was a direct

pull-out test based on the RILEM 7-II-128 “RC6: Bond test for reinforcing steel. 1. Pullout

test” (RILEM, 1994). The direct pull-out tests were performed on specimens with #4

(#13) and #6 (#19) deformed reinforcing bars.

The second test method consisted of a full-scale beam splice test specimen

subjected to a four-point loading until failure of the splice. This test method is a non-

ASTM test procedure that is generally accepted as the most realistic test method for both

development and splice length. The beam splice tests were performed on beams with #6

(#19) reinforcing bars spliced at midspan at a specific length to ensure bond failure

occurred prior to shear or flexural failure.

Analysis of the HVFA concrete test data indicates that using greater than 50%

replacement of cement with fly ash in concrete does not result in any increase in the

required development length of mild reinforcing steel.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:78610e408cce3cc9fa9a0a27957b52fb141f7d4c611afee096ec65eb2522ed47
Download URL:

https://rosap.ntl.bts.gov/view/dot/25527/dot_25527_DS1.pdf
File Type:

[PDF-10.50 MB]