Recommended application rates for RS-1 and CRS-1 tack coats vary, but are typically between:

The recommended application rates for RS-1 and CRS-1 tack coats typically range from 0.05 to 0.10 gallons per square yard. This rate is important as it ensures proper bonding between layers of asphalt. Tack coats serve to improve the adhesion of the overlay or additional layers to the existing surface, which is crucial for the longevity and integrity of the pavement.

Using the correct application rate can also help prevent issues such as slippage or delamination of the asphalt layers, which can occur if the tack coat is applied too thinly. Conversely, an excessively high application rate might lead to pooling or other complications that can negatively affect the performance of the asphalt. In practice, following these recommended rates ensures effective adhesion while also managing material costs and efficiency.

In the context of the other options, the range of 0.01 to 0.05 liters/m^2 does not provide sufficient coverage for effective bonding, while the range of 0.01 to 0.05 gallons per square yard is lower than the recommended effective adhesion levels. Therefore, 0.05 to 0.10 gallons per square yard is the correct and effective range for applying tack coats like RS-1 and CRS-1.