Seal Coat Application Rate

Below are general guidelines for applying sealer based on a typical application scenario. Number of coats: Two, Normally Coverage rate: First coat. Through the preventive maintenance program, about 16,000 lane miles a year are routinely resurfaced with a seal coat by contracts and about 3,000 lane miles per year of seal coats are placed with state forces.

Additionally, seal coats are used in intermediate layers during construction to seal the pavement structure. This calculator is designed to help sealcoating contractors calculate the amount of sealcoat materials, sealcoat additives, sand and water required for specific sealcoating projects. Simply select the number of coats of sealcoat, the square footage of the sealcoating project, the sealcoat application rate, the percent water dilution, the percent sealcoat additive (s) and the amount of sand per.

APPLICATION OF SEAL COAT First Coat: Apply the mixture uniformly to obtain the rates specified in the mixture Chart on page one. Drying Between Coats: Allow each coat to dry so that application-equipment may get back on previous coat without damage to select. Second Coat: Apply the second coat as outlined for the first coat above.

The Asphalt Seal-Coat Calculator is a practical tool designed to estimate the total amount of sealer required in gallons for seal-coating a specific area in square feet. It simplifies the process by providing an accurate calculation based on the area to be covered and the sealer's coverage rate per gallon. Formula of Asphalt Seal.

The application rate of a given aggregate should be determined such that the resulting seal coat will be one-stone thick. This amount of aggregate will remain constant, regardless of the binder type or pavement condition. This page discusses setting the asphalt shots-a specified number of full rock lands-for roadway projects that involve seal coat surface applications.

It addresses the asphalt application rate, distributor capacity, and calculating and marking the asphalt shot. Although typical aggregate and asphalt application rates are available in specifications such as ASTM D1369-84 and IN-DOT standard specifications (Chapter 404), design method, and guidelines are still needed to compute an optimum seal coat application rate for specific aggregate, emulsion, and pavement condition on a project. Accordingly, seal coats with rates based on the McLeod method showed acceptable performance.

The aggregate application rate should be high enough to protect the seal coat from immediate failure during construction but low enough to avoid unacceptable levels of accumulated fines content. When determining binder application rates in the field, achieving an embedment depth of the stone into the asphalt binder of about 40 to 50 percent is the goal. If all of the aggregate particles are about the same size, embedment depth will be about the same for each particle contributing to successful seal coat performance.