Other Products / Services #387296

Physical Properties :“CATLEX” is a fine suspension of positively charged particles of Natural Rubber in water under the balancing force of stabilizing agents. The pH is slightly acidic. The solid rubber obtained from “CATLEX” shows the same physical properties, as that of obtained from natural latex, however there is slight variation in affinity profile. It is freely miscible with all grades of cationic bitumen emulsions except oil based priming emulsions (invert emulsions).
Since “CATLEX” is chemically modified with organic surface active agents and pH stabilizers, this product is not recommended for use in production of personal hygiene products, latex based laminates and industrial products sensitive to acidic pH. The sole recommended application remains in the field of cold mix asphalt applications specially Micro-surfacing, Cold-mix surfacing including premix carpet, bituminous macadam, bituminous concrete, fog seal, soil stabilization etc. This product provide cohesive strength, flexibility in low temperature area, prevention of UV oxidation, resistance to rutting, prevention of ravelling, protection from water damage and retention of surface texture.

Source of Raw Material :Natural rubber latex is a milkionic Polyisoprene Latex.

• Specific Gravity: 0.98 - 1.02
• Mechanical stability : 475 Sec Min.
• Coagulum content   :  0.05% Max
• pH : 2 - 4
• Volatile fatty matter  : 0.15% Max.
• Elongation %: 400 Min.
• Shelf Life   : 1 Year from the date of production in sealed containers.
• Colour   : Yellowish white milky liquid.
• Compatibility: Cationic Bitumen Emulsions.

Procedure for Blending :As “CATLEX” is readily dispersible in most grades of cationic bitumen emulsions, it can be conveniently mixed with pre-formed emulsions or in soap phase before emulsion production. The following mey colloidal solution obtained from Hevea brasiliensis plants. Natural rubber is extracted from plants by tapping and collecting the raw latex in cups or glazed pottery containers guided by GI sprout. The collected “field Latex” is processed by removing coagulated rubber and impurities by filtering, adding ammonia to prevent further coagulation, removal of proteins and concentrating the latex by centrifuge method & creaming. To ensure consistent quality, latex is selected from a fixed geographic location .

Chemical Properties :Chemical Name   : Catthods can be used for its addition:Direct blending with ready emulsion  in storage drums / tank: Required quantity of CATLEX can be directly blended with ready emulsion in storage drums or tanks by simple addition and rolling / stirring the emulsion for 5 minutes. After stirring, the modified emulsion is ready for use as required. This method is recommended where prolonged storage of emulsion is expected, so CATLEX can be added at the time of use for better storage stability.Pre-addition to soap solution: Required quantity of CATLEX can be added to soap solution after adding emulsifier and acid to the hot water before making emulsion. This method provides more effective mixing as CATLEX treated soap solution is milled through colloid mill for high shear mixing. Recommended where modified emulsion is expected to be used earlier.

Physical Properties :“WETBOND-WMA” liquid is a brownish dark oily liquid at room temperature. This product has a characteristic fatty smell. When added to the hot bitumen, it readily disperses with minimal stirring and lowers the surface tension of bitumen for easier wetting of aggregates. The achieved lower surface tension remains active until the temperature of asphalt mix is dropped below 80 degree centigrade, after which the asphalt mix properties return back to normal.
“WETBOND-WMA” in its normal dose, does not have any significant effect on physical properties of bitumen. It however enhances the “flow” properties of asphalt mixes for easy compaction even at lower temperatures. This product also provides excellent water protection (Anti-stripping) and anti-oxident properties to bitumen for longer pavement life.

Mode of Action :

• “WETBOND-WMA” liquid is based on chemically modified fatty materials fortified with rheology modifiers for maintaining the temperature of the mix during transportation to application site and low temperature flow properties of asphalt mixes. The chemical inclusion of certain organic and inorganic molecules activate this product and assist in formation of a stable covalent bond (bridge) between bitumen and surface of aggregates. The flow properties of the asphalt mix are maintained by the special molecules to achieve best compaction even in lower paving and compaction temperatures.
• WETBOND-WMA has special feature of enhancing bond between bitumen and aggregates of asphalt mix, which ensures complete protection from stripping and water damage.

Chemical Properties :

• Dose: 0.3 to 0.5% by weight of Bitumen ( 3 to 5 Kg per MT of Bitumen)
• Specific Gravity : 0.95 - 0.98
• Flash Point: > 150 Degree Centigrade
• Pour Point : > -5 Degree Centigrade
• Water Content : < 1.0%
• Active content : 100%
• Shelf Life : 2 Years from the date of production in sealed containers.
• Colour : Brownish thick liquid.
• Compatibility : All grades of Road and Industrial Bitumen.

Advantages of WETBOND-WMA :“WETBOND-WMA” liquid is easy to use product for premixing in hot bitumen. This product has several advantages over competitors :

• Provides fuel saving and reduction in carbon footprints by providing lower hot-mix production and laying temperatures.
• No water ensures no spattering or foaming of bitumen and best warm mix properties even in cold climate pavement constructions.
• Not covered under hazardous products so easy to use and safe storage.
• Liquid product, easy to mix and convenient for direct dosing in HMP.
• Provides additional advantage of Anti-stripping Agent and anti-oxidant for hot mix surfaces. This ensures defect free bituminous pavements for years.
• Special ingredients for high thermal stability.
• Space age technology for best in class performance.
• Performance grade yet economical as compared to costly imported products.
• Low dose product.

Procedure for mixing of WETBOND-WMA :"WETBOND-WMA” can be conveniently mixed with hot bitumen by following method :

• Post addition in hot bitumen stored in bulk bitumen tank. In this method, the required quantity of WETBOND-WMA is slowly added to stored hot bitumen through the open manhole of the tank or using a suitable pump. After addition of complete dose, the bitumen will be circulated for 15 minutes and then it can be used as normal.
• Direct dosing in Hot Mix Plant by precise dosing device. This method helps in eliminating human contact and ensures better regulatory compliance. However this system must be selected with care to ensure proper dosing and the Hot mix plant manufacturer must be consulted for proper installation.

"PSEM-THX" is liquid thickener specially designed to remain stable in low pH conditions and can be conveniently blended with any Cationic Bitumen Emulsion. Unlike solid thickeners which require blending with soap water before making Bitumen Emulsion, "PSEM-THX" can be easily mixed after making bitumen emulsions and provide excellent viscosity increase with low dose requirement.
"PSEM-THX" in addition to increased viscosity, also make Bitumen Emulsions better stable on storage. A Cationic Bitumen Emulsion stabilized with "PSEM-THX" remains fully usable for minimum 1 year even when stored in open area during summers and winters. "PSEM-THX" also prevent breaking of Bitumen Emulsion on addition of water (even in high volumes).

Physical Properties :Turbid white thick liquid at room temperature with characteristic odour, . Miscible with water and Cationic Bitumen Emulsions of all grades. Ready to use product for post-addition after formation and cooling of Bitumen Emulsion. Improves viscosity, storage stability and the water dilution properties of bitumen emulsion. Stable even on very low pH.

Chemical Properties :

• Chemical Name   : Synthetic Polymer.
• Specific Gravity: 1.0
• Flash Point   : Not Flammable.
• Viscosity   : 4000 cps.
• pH : 2 - 4
• Shelf Life   : 1 Year from the date of production in sealed containers.
• Colour   : Yellowish white turbid liquid.
• Odor : Almost odorless.
• Compatibility: Most grades of Cationic Bitumen Emulsions.

Bitumen Emulsions have a lot of variation in their viscosities depending on the type of bitumen used, type of emulsifier, dose of acid, particle size distribution etc. Most of the time an external viscosity improving agent is required to meet specifications and coating properties.
Solid thickeners are the powders obtained from complex natural products modified by chemical cleavage and re-formation to provide stability in low pH medium. "BeGel" is a modified polygalactomanan type low dose product which is compatible with most grades of Bitumen Emulsion and emulsifiers. This product is added into hot water before formation of Bitumen Emulsion to obtain high viscosity.

Physical Properties :Fine Power in light yellow colour with chararcteristic Odour, substantially non-hazardous but irritant on prolong contact. Dispersible in water, giving thick colloidal dispersion. Shows mild alkaline pH in water.

Chemical Properties :

• Chemical Name   : Modified Galactomannan
• Water Content : Max. 15%
• Flash Point   : Not Flammable.
• Viscosity   : 3000 cps (0.5% aqueous solution)
• pH : 8 - 9 (0.5% aqueous solution)
• Shelf Life   : 1 Year from the date of production in sealed bags.
• Colour   : Yellow Fine Powder.
• Odor : Characteristic.
• Compatibility: Most grades of Cationic Bitumen Emulsions.

Typical Dose & Method of Addition :BeGel should be used between 0.1% to 0.5% w/w of Water. BeGel should be added to hot water (Temperature between 50 and 80 Degree centigrade) in smaller quantities using a dispersing device like sieving through 0.6 mm sieve with constant stirring to avoid lumping. Stirring should be continued for 15 minutes and then the liquid can be used normally in place of water. If lumping occurs, the liquid can be filtered through 0.6 mm sieve to avoid agglomeration.

Physical Properties :“WETBOND-REX” liquid is a dark brownish oily liquid at room temperature. This product has a characteristic smell.
This product is internal rejuvenating liquid where it can be added in required dose with fresh bitumen to be used in RAP based hot-mix asphalt constructions. When added to the hot bitumen, it readily disperses with minimal stirring and lowers the surface tension of bitumen for easier wetting of RAP and the fresh aggregates. This product has special resins and polymers to replenish the lost maltene part of the oxidised bitumen present in RAP. "WETBOND-REX" has been thoroughly evaluated by the "Anulab, Agra".
This product also have inherent anti-stripping and warm mix properties, it provides easy mixing even with cold RAP added in hot-mix plant pug mill, takes care of minor water present in RAP due to open storage and provides maintenance of temperature during transportation of mix to laying site and easy compaction even on lower than normal temperatures, so it provide un-comparable economy in its class.

Mode of Action :“WETBOND-REX” is based on a balanced mixture of various natural ingredients which are very identical to maltene part of bitumen in addition to amine compounds and anti-oxidants. This product assist in replenishing the lost bitumen fractions & restore its flexibility. The additional components ensure better protection from re-oxidation, better resistance to water damage and easier compaction of RAP containing Hot-mix even at below normal compaction temperatures. This product also assist in formation of a stable covalent bond (bridge) between bitumen and surface of road aggregates.
When “WETBOND-REX” treated hot bitumen is mixed with add-on aggregates and RAP, it provides dose dependent balanced diffusion into oxidized bitumen, thus ensure achievement of balanced Marshall Stability and flow values for the hot mix.

Chemical Properties :

• Dose: 0.05 to 0.1% by weight of RAP ( 0.5 to 1 Kg per MT of RAP)
• Specific Gravity : 0.94 - 0.96
• Flash Point: > 150 Degree Centigrade
• Pour Point : > 5 Degree Centigrade
• Water Content : < 1.0%
• Active content : 100%
• Shelf Life : 3 Years from the date of production in sealed containers.
• Colour : Dark Brownish thick liquid.
• Compatibility : All grades of Road and Industrial Bitumen / RAP.

Advantages of WETBOND-REX :“WETBOND-REX” is oily liquid product for mixing with fresh hot bitumen.

This product has several advantages over competitors :

• Optimum dose product.
• Provides additional advantage of anti-oxidant for hot mix surfaces.
• Assist in active bridge formation between Bitumen and aggregates.
• Gives excellent performance even with RAP having high degree of hardening.
• Additional water damage protection and warm mix asphalt properties.
• Provides exceptional economy as compared to competitor products.

Procedure for dose calculation of WETBOND-REX :"WETBOND-REX” dose can be conveniently calculated and used in RAP based hot-mix pavement by following method:

• The percentage dose (by weight of RAP) of “WETBOND-REX”, sufficient to achieve the target Marshall stability and mix flow values is determined using Marshall Mix design method. The dose per cubic meter of hot mix is calculated in Kgs.
• From final mix design, the quantity of fresh bitumen required for total fresh aggregate + RAP in Kgs per cubic meter is calculated. The percentage of “WETBOND-REX” by weight of fresh bitumen is calculated by:
• (Quantity of “WETBOND-REX” in Kg per cubic meter / Quantity of fresh Bitumen in Kg per cubic meter) X 100
• Based on above dose, required quantity of “WETBOND-REX” is added in bulk bitumen storage tank and stirred for 10 minutes. After that, the treated bitumen can be used as normal.