Abstract: A sulfur-bituminous composite binder material consisting essentially of 60-75% by weight sulfur and 25-40% by weight bituminous material. Optionally a small amount of a fibrous or flake reinforcing material and usually a filler material can be added. The binder is suitable for use as a self-compacting road or pothole repair material. A feature of the composite binder is the presence of two continuous phases which is achieved by mixing solid particulate sulfur with a softened bituminous material at a temperature in the range 120.degree.-150.degree. C. or by mixing liquid sulfur with liquid asphalt with a sufficient shearing mixing action to produce an emulsion of the liquid sulfur in the asphalt which, on cooling produces a continuous, rigid, crystaline and porous sulfur skeleton in the composite.

Abstract: A method of producing freeze-thaw resistant cementitious porous materials, such as concrete, mortar, stucco, in which up to about 30% by weight of the cement of a porous particulate material is mixed into the material. The particulate material may be finely divided fired clay, brick, diatomaceous earth or other mineral particles having a size range of 20-50 Tyler mesh, a total porosity of at least 30% and a pore size in the range 0.05 to 3.0 microns.