Abstract: A method for producing a non-coalescing asphalt from raw natural asphalt herein referred to as TLA Cold Milled. Raw TLA is crushed into smaller particles and milled at ambient temperature. The milled TLA is passed through a first sieve to maintain the separation of the particles and to produce a damp milled TLA in a powdered state. The damp milled powdered TLA is dried by exposing it to heat and is thereafter cooled to ambient temperature. The dried and cooled powdered TLA is passed through the first sieve or another sieve to produce the TLA Cold Milled which may be packaged at ambient temperature in conventional bags. The milling of the asphalt results in each particle of inorganic matter within the asphalt being surrounded by bitumen and a thin film of inorganic material, producing asphalt in a non-coalescing form, i.e., the TLA Cold Milled.
Type:
Grant
Filed:
January 12, 2017
Date of Patent:
November 12, 2019
Assignee:
LAKE ASPHALT OF TRINIDAD AND TOBAGO (1978) LTD.
Abstract: A method for producing a non-coalescing asphalt from raw natural asphalt herein referred to as TLA Cold Milled. Raw TLA is crushed into smaller particles and milled at ambient temperature. The milled TLA is passed through a first sieve to maintain the separation of the particles and to produce a damp milled TLA in a powdered state. The damp milled powdered TLA is dried by exposing it to heat and is thereafter cooled to ambient temperature. The dried and cooled powdered TLA is passed through the first sieve or another sieve to produce the TLA Cold Milled which may be packaged at ambient temperature in conventional bags. The milling of the asphalt results in each particle of inorganic matter within the asphalt being surrounded by bitumen and a thin film of inorganic material, producing asphalt in a non-coalescing form, i.e., the TLA Cold Milled.
Type:
Application
Filed:
January 12, 2017
Publication date:
July 12, 2018
Applicant:
Lake Asphalt of Trinidad and Tobago (1978) Ltd.