Patent ID: 9346956
Filing Date: 2016-05-24
CPC Classification: C08J,C08L

Claim Text:
1. A method of manufacturing a foamed sulfur asphalt stabilized soil comprising the steps of: introducing an asphalt binder, elemental sulfur, foaming air, and foaming water into a foaming mixer, where the foaming water has a water introduction pressure, where the foaming air has an air introduction pressure, and where the water introduction pressure is greater than the air introduction pressure; operating the foaming mixer such that a foamed sulfur asphalt forms with a water content of about 3.45%, where the foamed sulfur asphalt has a foam half-life equal to or greater than about 6 seconds and has a foam expansion ratio equal to or greater than 8, and where the foaming mixer operates at a temperature of about 150° C.; introducing the foamed sulfur asphalt, an aggregate having a moisture content, and Portland cement into an aggregate mixer; and operating the aggregate mixer such that the foamed sulfur asphalt stabilized soil forms.