Mix Design Methods for Slurry Seal/ Microsurfacing and Chip Seals November 3, 2011 12 Noon - 1:30 pm EDT (1.5 PDHs) $50

Register online to view the webinar recording.

Description
Description:  Mix designs are an integral part of the overall performance of Slurry Seal, Microsurfacing and Chip Seals. For mix design of Slurry Seals and Micros, there are several recommended sources including ASTM D 3910, ISSA A-105 & ISSA A-143. In the lab, blending of the materials that are to be used in the field is done in varying proportions to select the proper formulation. Lab tests are conducted to ensure a slurry mixture that performs well during placement and under traffic. For Chip Seals, there are procedures for determining the proper quantity of asphalt binder and cover aggregate. Material properties of the stone and asphalt are first obtained, and then calculations and lab testing performed to determine the required quantities. Adjustments must be made to account for traffic volume, absorption of the binder into the existing pavement and cover aggregate, characteristics of the cover aggregate, etc.

This webinar will illustrate the mix design process first for Slurry Seal/ Microsurfacing, and then move into the same for Chip Seals. Discussion for each treatment will include component material analysis, proportion optimization, performance testing, final formulation adjustments and recommendations.

•  Slurry Seal/ Microsurfacing mix design requirements and standard methods.
•  Chip Seal mix design requirements and standard methods
•  Highlight each performance test and its purpose
•  Discuss the importance of specified tolerances
•  Emphasize importance of proportioning according to the job mix formula in the lab and later in the field
•  Illustrate that failure to adhere to the mix design proportions will lends itself to performance issues

Instructor
Debbie Deep – MeadWestvaco Corp (Slurry Seal & Microsurfacing)
Larry Tomkins – Ergon Asphalt & Emulsions, Inc (Chip Seals)

Instructions for viewing a recorded webinar (PDF 706 kb)

(A PDH Certificate is available upon request after you view the recording by sending an email to ai_webinars@asphaltinstitute.org with the name of the session and full name you used to register)

Fees & Registration
The registration fee is $50.

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