Advantages Of Using Cold Asphalt

• It can be applied even in very cold weather during winter months.
• It is a simpler and more flexible application than hot asphalt.
• It provides the opportunity to produce and stock patches to meet all needs at once.
• It provides great savings in terms of energy, labor and time.
• It can remain in storage for a long time without serious loss of stability.
• Packaged asphalt can be stored for a least of 6 months under suitable conditions.
• It does not require the use of a separate primer during application.
• It can be used easily on all kinds of asphalt and concrete surfaces.
• It can be used as a wearing layer in areas with low traffic.
• It has a simpler and more flexible application than hot asphalt.
• It gives more successful results in low penetration bitumens.
• After laying and compacting, the road is immediately opened to traffic.

       Things to Consider for a Good Application

• Technical support should be received from the supplier for the first production.
• If there is mud and water accumulation in the existing pit, it is cleaned.
• The fact that the pit is moist does not pose a problem for the application.
• The produced asphalt is compacted after being distributed homogeneously in the pit.
• After the produced asphalt is distributed homogeneously in the pit, it is compressed.
• Compaction with a compactor or patch roller gives the ideal result.
• In cold asphalt application, the air temperature should not be below -10°C.
• Additive dosage rate varies depending on regional climate and bitumen penetration.
• On average, 6 - 10 kg of additives are used in the production of 1 ton of cold asphalt.
• The quality of the additive used in the usage rate is a very important variable.
• If cold asphalt will be stored without packaging, the additive rate is increased.
• Cold asphalt stored in open areas should not be contacted with snow and rain.
• The ideal temperature range is 110-130°C for bitumen and 90-110°C for aggregate.
• The amount of bitumen is approximately 4% of the aggregate in the mixer.
• Low viscosity bitumens give the best results in cold asphalt production.
• If a high viscosity bitumen is to be used, the additive rate should be increased.
• After the aggregate is mixed homogeneously with the bitumen, the additive is added.
• The additive should be added to the mixture in the mixer, not to the bitumen tank.
• The total mixing time in the asphalt plant is 50 seconds on average.
• The maximum aggregate size to be used in cold asphalt production is 9mm.
• Aggregate size can be up to 12mm in necessary cases.