Type D Flex base is a road base material extensively used in the construction of highways, driveways, and other infrastructure projects. This material is composed of crushed recycled concrete, which offers a durable and stable foundation. It is designed to meet stringent specifications set for TxDOT Item 247, ensuring excellent compaction and load-bearing capabilities. Flex base is particularly valued for its ability to create a firm and reliable surface that can withstand heavy traffic and adverse weather conditions, making it an essential component in both urban and rural road construction projects.