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Warm-mix is a form of Hot-mix Asphalt produced and laid at lower than recommended HMA temperatures to decrease fuel consumption, reduce green house gases and to achieve same degree of mix compaction even at lower temperatures. The additives used for this purpose are called Warm-mix additive and they include a range of chemical and wax based products.
During initial evolution of warm-mix concept, most of the additives contained water to achieve “foaming” of bitumen resulting in warm mix properties. These additive carried a number of problems like uncertain results, induced stripping, tedious process, increased oxidation and premature failure of pavement, human health hazard etc.
With advancement of technology, fat, chemical and wax based meltable solid type additives were introduced by many reputed organizations with varied levels and advantages in terms of dose, emission, field performance, stripping and oxidation control etc.
In latest of Warm-mix technology, very high performance liquid additives were introduced with advantages of low dose, easy mixing, safe handling, maintain temperature during haulage, outstanding control of stripping, minimized oxidation, cost effective etc. “WETBOND-WMA” liquid is the shining star of this category of low dose, high performance additives with unique feature of being non-hazardous.
|Business Type||Manufacturer, Exporter|
|Available Packings||WETBOND-WMA Liquid Additive for Warm Mix Asphalt in 200 Kg. HDPE Drums / 50 Kg. Cans / 20 Kg. Cans.|
Preferred Buyer From
|Location||Anywhere in India|
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 :
Chemical Properties :
Advantages of WETBOND-WMA :
“WETBOND-WMA” liquid is easy to use product for premixing in hot bitumen. This product has several advantages over competitors :
Procedure for mixing of WETBOND-WMA :
"WETBOND-WMA” can be conveniently mixed with hot bitumen by following method :