A unique bituminous, naturally occurring material, which provides performance – enhancing properties to binders and Hot Mix Asphalts (HMAs) in the asphalt industry
TLA is a natural product from the famous Asphalt or “Pitch” Lake located in Trinidad, West Indies -perhaps the largest natural asphalt deposit in the world. It began to be of commercial importance about the middle of the nineteenth century and has been worked actively since the first lease in 1888. its use has extended to all parts of the world for;
The refining operations is essentially on of dehydration, carried out by heating the crude asphalt to high temperatures, below flash point, in large tanks (or ‘stills’) fitted with coils for high pressure steam. After screening, the Trinidad Lake Asphalt is currently poured into hardboard drums for dispatch, this form of package will soon be replaced with the installation of the company’s TLA Pelletization Plant.
Although the bitumen or asphalt included in paving mixtures rarely exceeds 10% of the total, it is the most important factor of the mixture. Its function is to bind together the particles of aggregate comprising the pavement and if it is unsatisfactory in this capacity, disintegration will set in and the pavement will fail. Thus the ‘quality’ of the bituminous component becomes a measure of the ultimate life of the pavement, and the assessment of this attribute is of the greatest importance.
Fortunately, the engineer has at his disposal what is perhaps the only master test, namely, that of actual service and in this respect, the history of Trinidad Lake Asphalt as a paving material extends back over 100 years. No other similar bituminous material has been subjected to such varied environments in all parts of the world for such a span of years. Its reputation is built upon a record of long l i fe combined with low maintenance costs that has not been equaled.
Trinidad Lake Asphalt, in its crude form is more accurately referred to as Trinidad Natural Asphalt but is also known by the terms Dried Asphalt (DA), Epure and Pitch. Trinidad Natural Asphalt is a complex emulsion of water, gas, bitumen and mineral matter.
Trinidad Lake Asphalt is usually packaged in 230 kg fire-board drum and shipped internationally in 20’ and 40’ containers. It is also has cold-storage technology that keeps it at a steady temperature till use. TLA can also be stores as pellets in drums of various sizes depending on utility and demand specifications.
Trinidad Lake Asphalt (TLA) is considered to be a thermoplastic (viscoelastic) material. At ambient temperatures, it is actually a semi-solid or can be solid or can be classified as a gel-sol but appears completely solid on initial observation. However, if left outdoors, at ambient tropical and sub-tropical temperatures, it will slowly change shape and occupy the area in which it is kept. The mineral presence PROVIDES IMPROVED RESISTANCE TO SKID and imparts stiffness to the binder. The presence of the mineral material allows for a reduced amount of “fines” to be added in the generation of the Job Mix Formula (JMF) of the Hot Mix Asphalt (HMA).
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TLOG, Trinidad Lake Asphalt Oil and Gas Limited was registered in Trinidad and Tobago in 2009 in accordance with the companies act 1995 to operate as a business entity in the Hydrocarbon Sector including, upstream, downstream and midstream activities.