T416 Rev. 107West Virginia Division of Highways Asphalt Content By The Ignition Method (AASHTO T308, Test Method A) Mix Design Calibration And Gradation Comparison Worksheet Lab Number: Technician:Material:.
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How to fill out the Aashto T308 online
Filling out the Aashto T308 form online can streamline the process of documenting asphalt content through the ignition method efficiently. This guide offers clear, step-by-step instructions to help you navigate the form, ensuring accurate data entry and compliance with industry standards.
Follow the steps to successfully complete the Aashto T308 form.
- Click the ‘Get Form’ button to obtain the form and open it in your designated application.
- Begin by entering the lab number and technician's name in the appropriate sections at the top of the form. This helps identify who conducted the tests.
- Fill in the material type and the T400 number next to the relevant fields to specify the materials being tested.
- Record the field sample number and the date for reference. Accurate records are vital for compliance and traceability.
- Input the temperature data before the ignition test in Celsius. List the temperature adjacent to the data field.
- For each prepared sample, document the weights in the specified fields (A, B, and C), making sure to perform the necessary calculations to derive the sample weight.
- After the ignition, enter the weights for the basket and aggregate in fields (D) and (E), and calculate the aggregate weight (F) similarly.
- Input the asphalt content obtained from the oven printout or through the alternative calculation in (G). Ensure accuracy by adhering to the provided guidance.
- If the asphalt content difference exceeds 0.15 percent, repeat the tests as instructed and document the remaining results for determining the calibration factor.
- Continue to fill out the calibration factor data according to the specified requirements, ensuring all necessary calculations are completed.
- Complete the aggregate gradation calibration section, entering data for sieve sizes and recording any necessary differences as outlined.
- Finally, review all entered data for accuracy, save your changes, and proceed to download, print, or share the completed form as needed.
Start filling out the Aashto T308 form online now for efficient testing documentation.
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How to calculate correction factor for asphalt?
Calculate the difference between the actual and measured asphalt binder contents to 0.01 percent. The asphalt binder correction factor, Cf, is the average of the differences expressed as a percent by mass of asphalt mixture. T 308 - Materials Manual M 46-01 - WSDOT Washington State Department of Transportation (.gov) https://.wsdot.wa.gov › manuals › fulltext › t... Washington State Department of Transportation (.gov) https://.wsdot.wa.gov › manuals › fulltext › t... PDF
How to determine asphalt content?
The asphalt content is calculated as the difference between the initial mass of the asphalt paving mixture and the mass of the residual aggregate, and the calibration factor. The asphalt content is expressed as mass percent. 4.1. 5.9.57 determination of asphalt content and gradation of hot mix ... ksdot.gov https://.ksdot.gov › Connections › ConstManual ksdot.gov https://.ksdot.gov › Connections › ConstManual
What are the different types of hot mix asphalt?
HMA pavement mix types include Open-Graded Friction Courses (OGFC), Stone Matrix Asphalt (SMA), and fine- and coarse graded dense mixes. HMA pavement mixtures are expected to perform over extended periods of time under a variety of traffic and environmental conditions. HMA Pavement Mix Type Selection Guide dot.gov https://.fhwa.dot.gov › research › pavements › asphalt dot.gov https://.fhwa.dot.gov › research › pavements › asphalt
What is the binder content limit?
The binder content is typically in the 6.0 to 7.0 percent range for Open-graded surface mixes. Binder content, usually in the range of 1.5 to 3.0 percent by weight of the total mix for Open-graded base mixes.
What is the binder content test method?
This test method describes the procedure to determine the binder content of hot mix asphalt (HMA) by removing the binder via pyrolysis. HMA samples are placed in a furnace and heated past the autoignition point of the binder. The binder is ignited and burned off leaving the aggregate intact.
How do you calculate binder content?
Asphalt binder content is calculated as the difference between the initial mass of the HMA and the mass of the residual aggregate, correction factor, and moisture content. The asphalt binder content is expressed as percent of moisture-free mix mass. determining the asphalt binder content of hot mix asphalt (hma) by the ... idaho.gov https://apps.itd.idaho.gov › files › Asphalt › t308wpr12 idaho.gov https://apps.itd.idaho.gov › files › Asphalt › t308wpr12
How to find optimum binder content?
The optimum binder content should be determined by observing the excessive mixture draindown, or filling of un-compacted air voids through the pyrex dish. The technician must be careful not to allow the mixture to slide, or move while observing the uncompacted mixture.
How to calculate percentage for binder?
DETERMINATION OF BINDER CONTENT FOR ASPHALT MIX STANDARD. OBJECTIVE. APPARATUS. PROCEDURE. CALCULATIONS. Percentage of binder in the total mix = W1—(W2+W3) / W1 * 100. W1 = Weight of sample taken. ... REPORT. DETERMINATION OF BINDER CONTENT AND SIEVE ANALYSIS FOR ASPHALT MIX. IRC: SP 11-1988 (Appendix -5)
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