Construction and Initial Evaluation of Sulfur Extended Asphalt (SEA) Pavement in a Hot Climate

摘要

The installation involved preblending of the sulfur and asphalt with the Texas Gulf apparutus, mixing in a drum mixer, and conventional paving procedures. The initial findings revealed few problems regarding mix design, mixing temperature control, paving, compacting, and environmental controls. Various field and laboratory tests indicated that the SEA materials and pavements reacted similarly to the control materials and pavements. Condition and crack surveys 11, 17, and 22 months after installation showed that the SEA and control pavements were both in excellent condition with no cracking in any of the sections.