Seal Coat Application Rate
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. A seal coat is an application of a layer of asphalt binder covered with a layer of aggregate applied to an existing paved surface.
TxDOT spends close to $180 million annually maintaining 197,500 lane miles of roadway, and seal coats are a very important part of TxDOT's preventive maintenance program. Below are general guidelines for applying sealer based on a typical application scenario. Number of coats: Two, Normally Coverage rate: First coat.
TxDOT Research Library - 0-6989 / Update Seal Coat Application Rate ...
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. 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. APPLICATION OF SEAL COAT First Coat: Apply the mixture uniformly to obtain the rates specified in the mixture Chart on page one.
Sealcoating – Curtis Clean Sweep
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 Seal Coat Design Program was developed as an aid to determine the materials, application rates and quantities for a seal coat.
Download to run on Windows XP or older versions of Windows. Determine Application Rate Specify the desired thickness of the sealcoat, and the calculator will help you determine the application rate in gallons per square foot. The application rate of a given aggregate should be determined such that the resulting seal coat will be one-stone thick.
Seal Coating Asphalt: Key Benefits & Longevity
This amount of aggregate will remain constant, regardless of the binder type or pavement condition. 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.
