Development of a Robust Field Technique to Quantify the Air-Void Distribution in Fresh Concrete

Ley, Tyler; Tabb, Braden; Oklahoma State University. School of Civil & Environmental Engineering

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Development of a Robust Field Technique to Quantify the Air-Void Distribution in Fresh Concrete

2013-07-01
By Ley, Tyler ; Tabb, Braden

[PDF-2.69 MB]

English

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Creators:

Ley, Tyler ; Tabb, Braden

Ley, Tyler ; Tabb, Braden Less -
Corporate Creators:

Oklahoma State University. School of Civil & Environmental Engineering
Corporate Contributors:

United States. Dept. of Transportation. Research and Innovative Technology Administration
Subject/TRT Terms:

[+]

Air Voids Concrete Durability Durability Freeze Thaw Durability Freeze Thaw Performance Fresh Concrete Fresh Properties Measuring Instruments Quality Control Research Hub Super Air Meter Test Methods Test Procedures
Publication/ Report Number:

OTCREOS9.1-31-F
Resource Type:

Tech Report
Geographical Coverage:

Oklahoma ; United States

Oklahoma ; United States Less -
Edition:

Final Report, Aug. 2009 – Aug. 2013
Corporate Publisher:

Oklahoma Transportation Center
Abstract:

In order to make concrete frost durable it is common to provide a small and well distributed air void system. Current measuring techniques require weeks to complete on hardened and polished samples of concrete. This report presents the results of a novel test method that uses a higher number of sequential pressures to measure the air void volume and distribution of voids in fresh concrete. The method has been named the Super Air Meter or SAM. Results from the SAM are measured for over 50 concrete mixtures and then compared to hardened air void analysis and conventional measurements of fresh air content. In addition some data is presented from two different operators and two different devices to compare the repeatability of the method. The results are very promising and the data suggests that the test is an inexpensive and useful tool to evaluate the air void quality in fresh concrete.
Format:

PDF
Funding:

DTRT06-G-0016
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:d5ab18fe201c2f0108ca52dea702e73e76b9fd9621f894b900b1584e41adc429
Download URL:

https://rosap.ntl.bts.gov/view/dot/27051/dot_27051_DS1.pdf
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Development of a Robust Field Technique to Quantify the Air-Void Distribution in Fresh Concrete

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