One Source Equipment Rentals has gas and diesel powered walk behind saws for rent or sale from Husqvarna. Walk behind saws are designed for cutting and grooving the flat surface of asphalt and concrete slabs and floors. They can be used with dry diamond blades (up to 14″) or with water. Walk behind saw can be used for; cutting control joint in new concrete, patching concrete/asphalt, creating a trench in a concrete slab/asphalt. See also early entry saws for green concrete.