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Tire Rubber Modified Slurry Seal


How Much Tire Rubber is in RPMS vs TRMSS?
Be careful when comparing the amount of tire rubber in RPMS vs. TRMSS. RPMS specifies 5% tire rubber by VOLUME of the asphalt. This equates to about 2% tire rubber by WEIGHT of the asphalt. This is because crumb tire rubber weighs less than half as much as asphalt. TRMSS specifies 10% tire rubber by WEIGHT of the asphalt, which is nearly 5 times the amount in RPMS.
[TRMSS vs RPMS Rubber Content Comparison]

Digested or undigested tire rubber?
 Other rubberized slurry seals use undigested crumb rubber as a filler which does not modify the asphalt properties. When specifying a rubberized slurry seal make sure you pick one that uses a terminal blend, ie. digested, rubberized asphalt like TRMSS. Don't let this happen to you - failed Rubberized Emulsion Aggregate Slurry(REAS) and failed Rubberized Polymer Modified Slurry(RPMS).

Does emulsion percentage really matter?
 When comparing slurry seal mixtures, those with a higher emulsion content do not necessarily equate to a higher ASPHALT content. Some rubberized slurry emulsions contain less than 40% asphalt, while TRMSS emulsion has 60% asphalt. Why pay for more emulsion when you are getting less asphalt?
[Asphalt Content Comparison]

Rubberized Slurry in December?
With TRMSS its possible! Because TRMSS uses a cationic emulsion it can be formulated to work just as well in December as it does in July.

Is TRMSS in the Greenbook?
 Conventional slurry seal specifications in Greenbook can be used for TRMSS. All that is needed is to specify that the base asphalt used for the emulsion must contain 10% recycled tire rubber.
Contact Us if you would like more information.


Tire Rubber Modified Slurry Seal (TRMSS)
Is a new type of cationic rubberized slurry seal that provides the durability of a conventional slurry seal along with the uniform black appearance and environmental benefits of a tire rubber modified emulsion. In addition TRMSS can be applied year round.

Save the Environment and the Pavement
Over 40 million waste tires are generated in california each year. Using TRMSS will divert approximately 80 tires per lane mile from the landfill. Your pavement preservation program is can now be your recycling program as well.

Digested Tire Rubber
TRMSS begins with a terminal blend of asphalt and tire rubber. This process combines the asphalt and tire rubber under high temperatures and pressures allowing the asphalt to digest the tire rubber completely, acquiring all the benefits of the tire rubber before it is emulsified.

More material, less money.
 TRMSS used with a Type II aggregate has an application rate of 13.5 lbs/yd2, that's over 50% more aggregate per square yard than other rubberized slurry seals. When using a type I aggregate TRMSS has an application rate of 9 lbs/yd2, over 85% more aggregate per square yard than other rubberized slurry seals.
[Application Rate Comparison]

Cationic Quick Set Emulsion
TRMSS is set apart from other rubberized slurry seals because it is based upon a cationic quick set emulsion. Cationic (positively charged) emulsions cure chemically, not through evaporation like anionic (negatively charged) emulsions. This allows cationic emulsions to be used in cooler temperatures and still cure successfully. By their nature, cationic emulsions set quickly and create a natural bond to Southern California's negatively charged rock sources.


Positively charged cationic emulsion drawn to negatively charged aggregate

"Anionic emulsion were first developed in the early 1900s. They found their applications but the growth in use was relatively slow. An anionic emulsion does not break chemically. The water evaporates and causes the emulsion to break. This is a much slower process and the adhesion is very poor. In the mid 1940s cationic emulsion were introduced, which meant a major technical improvement. The emulsion should be stable during storage and transport but should break quickly when applied. This quality is most easily achievable with cationic emulsions since such emulsions react and break chemically in contact with most aggregates."
-Basic Emulsion Know-How, Akzo Nobel

Congratulations!
 The City of Thousand Oaks, Roy Allan Slurry Seal, Inc. and Paramount Petroleum were recently awarded the Excellence in Contracting award by the California Chip Seal Association for their 2010 TRMSS project. The project included both day and night work throughout the city, and recycled over 63,000 lbs of recycled tire rubber. For a short video on the project by Thousand Oaks TV click here - Thousand Oaks 2010 Tire Rubber Modified Slurry Seal.

Click the picture below for a video demonstrating the quick setting time of TRMSS.

From Videos

Pictures from recent TRMSS projects.

 

failed Rubberized Emulsion Aggregate Slurry(REAS).

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