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AssigneeBlacklidge Emulsions, Inc.
InventorsRonald W. Blacklidge, Timothy D. Rayburn
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The present invention provides a method of sealing and priming a prepared substrate, such as a base or sub-base for a roadway, comprising the application of an amount of an emulsion consisting essentially of a first phase of a combination of resinous petroleum oil and an asphalt, a second phase of water, and suitable emulsifiers and stabilizers, where the ratios of the first asphalt and resinous oil phase to the second water phase in the total emulsion are from about a 1:1.8 to 1:11 ratio. The first phase comprises from about 0.3% to 21% asphalt (or equivalent compositions) and from about 3.3% to about 34% resinous petroleum oil (or oils with equivalent properties) based on the total weight of the emulsion. The second phase is of water which provides from about 62.5% to about 91.5% of the total weight of the emulsion. The emulsifiers and stabilizers are from about less than 0.16% to about 2.5% of the total weight of the emulsion. The emulsion may also include about 0.5% to 8% by weight of one or more polymeric additives such as styrene-butadiene rubbers, block polymers or other polymers capable of incorporation in the emulsion. In the amounts used in the invention, those polymers typically increase the durability, flexibility and ductility of the applied and cured emulsion.
A method for sealing the exposed surface of a prepared substrate comprising soil, clay, sand, shell, cement, limestone, fly ash or mixtures thereof, said method comprising the application to said exposed surface of an amount of an emulsion effective to retain moisture within said substrate;
A method for priming the exposed surface of a graded and compacted roadway base course to receive a layer of asphaltic roadway material comprising the application to said exposed surface an amount of an emulsion effective to prepare said base course to receive said layer of asphaltic roadway material;
A method for sealing the exposed surface of a prepared substrate comprising soil, clay, sand, shell, cement, limestone, fly ash, and mixtures thereof, said method comprising the application to said surface of an amount of an emulsion effective to retain moisture within said substrate;
A prepared traffic bearing composite comprising a base of soil, clay, sand, shell, cement, limestone, fly ash or mixtures thereof;
Dependencies are inferred from the claim text.