Design of high-performance concrete mixtures and test beams for a bridge in Virginia.

Ozyildirim, H. Celik; Gomez, Jose´ P; Virginia Transportation Research Council (VTRC)

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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 of high-performance concrete mixtures and test beams for a bridge in Virginia.

1995-01-01
By Ozyildirim, H. Celik ; Gomez, Jose´ P

[PDF-3.32 MB]

English

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Creators:

Ozyildirim, H. Celik ; Gomez, Jose´ P

Ozyildirim, H. Celik ; Gomez, Jose´ P Less -
Corporate Creators:

Virginia Transportation Research Council (VTRC)
Subject/TRT Terms:

[+]

Concrete Bridges--Design And Construction--Virginia Prestressed Concrete Beams--Virginia Prestressed Concrete Construction--Virginia
Publication/ Report Number:

FHWA/VA-96R27
Resource Type:

Tech Report
Geographical Coverage:

Virginia
Edition:

Final report.
Corporate Publisher:

Virginia Transportation Research Council (VTRC)
Abstract:

The main objective of this study was to develop concretes with a compressive strength of 69 to 83 MPa (10,000 to 12,000 psi) at 28 days and a high early release strength (within 20 hr) exceeding 70% of the 28-day strength. The properties of the high-performance concretes (HPC) tested included compressive strength, flexural strength, splitting tensile strength, and permeability. Four prestressed concrete AASHTO Type II beams were fabricated with HPC at a prestressing plant and load tested to failure. This test program was undertaken to support the field application of HPC in Virginia. Results showed that high-strength and low-permeability air-entrained mixtures could be designed. Concretes with a 28-day strength exceeding 69 MPa (10,000 psi), a minimum release strength of 70% of the 28-day strength, and coulomb values below 1,500 at 28 days can be produced with a water-cementitious material ratio (W/CM) of about 0.30 or below. Achieving such a low W/CM requires large amounts of cementitious material, proper selection of aggregates, and high dosages of high-range water-reducing admixtures. Thorough mixing is necessary, and good construction practices must be followed during placement, consolidation, and curing. To achieve high early strengths, proper temperature management is also needed.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:90a209dd161502e968287966e3e292102e6633fedd37de92a34438682b1ad88f
Download URL:

https://rosap.ntl.bts.gov/view/dot/19430/dot_19430_DS1.pdf
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Design of high-performance concrete mixtures and test beams for a bridge in Virginia.

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