Optimized aggregates gradations for portland cement concrete mix designs evaluation.

Heyen, Wally; Halsey, Lieska; Rea, Robert; Syslo, Mick; Krason, Tim; Gernert, Tom; Weigel, Jeremy; Swanson, Debra; Beason, Jim; Nebraska. Dept. of Roads

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Optimized aggregates gradations for portland cement concrete mix designs evaluation.

2008
By Heyen, Wally ; Halsey, Lieska ; Rea, Robert ; ...

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English

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Creators:

Heyen, Wally ; Halsey, Lieska ; Rea, Robert ; Syslo, Mick ; Krason, Tim ; ... More +

Heyen, Wally ; Halsey, Lieska ; Rea, Robert ; Syslo, Mick ; Krason, Tim ; Gernert, Tom ; Weigel, Jeremy ; Swanson, Debra ; Beason, Jim Less -
Corporate Creators:

Nebraska. Dept. of Roads
Subject/TRT Terms:

[+]

Aggregate Gradation Blended Cement Durability Tests Local Materials Mechanical Tests Mix Design Optimization Portland Cement Concrete
Resource Type:

Tech Report
Geographical Coverage:

Nebraska
Corporate Publisher:

Nebraska. Dept. of Roads
NTL Classification:

NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance;NTL-HIGHWAY/ROAD TRANSPORTATION-Design;
Abstract:

This research main purpose was to optimize aggregate blends utilizing more locally available materials. With the industry collaboration and partnership, the Department embraced a change that impacts a specification implemented in the 1947 for Class of 47B concrete. This aggregate optimization embraces today’s availability of new blended cements in Nebraska. These new blended cements enhanced the Alkali Silica Reaction of Nebraska’s sand and gravel. As well as, and not short of improving future gradation from a gap-graded to a more dense gradation. Combined aggregate gradations were evaluated for mechanical and durability characteristics for paving mix designs. The outcome of these evaluations resulted in the introduction of a new blend aggregate grading band for the Department named 47B Revised (47BR), which would allow the use of more locally available materials currently being produced in the state, thereby optimizing its economy.

The goal for the new 47BR Combined Aggregate Gradation is to have the contractor, with agency oversight, develop a concrete mix design with an optimum combined aggregate gradation and provide the Contractor with the testing and control responsibilities to ensure a quality product. This report presents the results of the evaluation and optimization of the 47BR Concrete Specification.
Format:

PDF
Funding:

R-2008
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:9c8bad761e46d1c5bba1d00f613e87d525db6f0b181b80f7d08f410bee8d9855
Download URL:

https://rosap.ntl.bts.gov/view/dot/26205/dot_26205_DS1.pdf
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Optimized aggregates gradations for portland cement concrete mix designs evaluation.

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