Hot Asphalt Regeneration
ReasphaltANTis an innovative Russian technology for the reuse of reclaimed asphalt pavement (RAP) in amounts exceeding 30% by weight of new asphalt concrete mixtures.
Use of RAP in amounts ranging from 30% to 90% of the total mass of new asphalt concrete mixtures, depending on the type of the asphalt mixing plant
Reduction in the production cost of asphalt concrete mixtures by more than 25%
Full compliance of asphalt concrete mixtures with state and national standards
Applicability of the technology to all asphalt mixing plant models without additional modernization
No difficulties in applying the technology
100% environmental safety

Advantages of the Technology
ReasphaltANT
ReasphaltANT is a complex organic agent designed to initiate oxidation-reduction reactions within the material.
ReasphaltANT acts to rejuvenate aged bitumen contained in RAP by breaking down the surface of asphaltenes and forming new low-molecular-weight hydrocarbon compound. As a result, reclaimed asphalt mixtures acquire improved physical and mechanical properties.
ReasphaltANT is safe for humans and the environment both in its concentrated form and as an aqueous solution.
Application Guidelines
ReasphaltANT is usedas an aqueous solution. The rate of the agent ranges from 0.01% to 0.02% of the mass of RAP.
The amount of water is calculated taking into account the achievement of the required moisture content of RAP in the range of 8%.
The treated RAP can be prepared using any type of mixing units, including asphalt mixing plants or front-end loaders by means of mixing.
When using an asphalt mixing plant, it must operate in cold mode via a bypass. RAP treated with ReasphaltANT aqueous solution should be used no earlier than 12 hours after treatment. RAP is stored in cone-shaped piles outdoors fora maximum of 30 days.
When using asphalt batch mixing plants, the amount of RAP used is up to 30% of the mass of the new asphalt concrete mixture.
When using continuous-type asphalt mixing plants, the amount of RAP used is up to 90% of the mass of hot organomineral mixtures.
WRAP = 8%
Water content up to
0,01-0,02%
ReasphaltANT
Application of the Technology at Asphalt Batch Mixing Plants
1
Preparation
RAP must be treated with an aqueous solution of ReasphaltANT and stored for at least 12 hours.
2
Dosing
Treated RAP, in amounts of up to 30% of the total mixture mass, is dosed together with mineral materials into the drying drum of the asphalt mixing plant.
3
Heating
Heating of the RAP and mineral materials in the drying drum to a temperature not exceeding 200°C. The moisture contained in the RAP prevents bitumen burnout. During this process, bitumen is redistributed from the RAP throughout all mineral materials.
4
Filtration System
The temperature of gases and steam at the outlet of the drying drum exceeds 110 °C, which completely prevents moisture condensation from forming on the plant's filters.
5
Screening
Screening of mineral materials into narrow fractions and accumulation in hot material bins without any clumping.
6
Mixture Production
The asphalt concrete mixture is prepared according to the mixture design (the particle size distribution) using the standard method. The amount of new bitumen is reduced, taking into account the bitumen already contained in the RAP.
Material consumption per 1 ton of asphalt concrete mixture in a Batch Asphalt Mixing plant
Using 30% of reclaimed asphalt pavement
Mineral materials - 62%
620 kg
Mineral filler - 4,2%
42 kg
Bitumen - 3,9%
39 kg
Reclaimed asphalt pavement - 30%
300 kg
ReasphatANT 0,01% + Water 5%
0,03 L + 15 L
New asphalt concrete mixture
Mineral materials - 88,5%
885 kg
Mineral filler - 6%
60 kg
Bitumen - 5,5%
55 kg
Application of the Technology at Continuous Asphalt Mixing Plants
1
Preparation
Preparation of treated RAP is carried out using any type of mixing units, including asphalt mixing plants (operating in cold mode), as well as by mixing with front-end loaders.
2
Dosing
The treated RAP, in amounts of up to 90% of the total mass, is dosed together with mineral materials into the drying drum of the asphalt mixing plant. Material dosing is performed in accordance with the asphalt concrete mixture design.
3
Heating
Heating of the RAP and mineral materials in the drying drum to a temperature not exceeding 200°C.
4
Mixture Production
During heating and mixing, the bitumen is redistributed from the RAP throughout all mineral materials. The required amount of new bitumen and additives is then added.
5
Filtration System
The temperature of gases and steam at the outlet of the drying drum exceeds 110°C, which completely prevents moisture condensation from forming on the plant's filters. When a water-based filtration system is used, the outgoing steam is converted into water.
Material consumption per 1 ton of asphalt concrete mixture at a Continuous Asphalt Mixing Plant
Improvement of Particle Size Distribution
Reclaimed asphalt pavement - 80%
800 kg
Mineral materials - 19%
190 kg
Bitumen - 1%
10 kg
ReasphaltANT 0,01% + water 5%
0,08 L + 40 L
Using 100% Reclaimed Asphalt Pavement
Reclaimed asphalt pavement 100%
1 000 kg
ReasphaltANT 0,01% + water 5%
0,1 L + 50 L
Mixture Production
The asphalt concrete mixture is prepared according to the mixture design (the particle size distribution) using the standard method. The amount of new bitumen is reduced, taking into account the bitumen already contained in the RAP.
6
Screening
Screening of mineral materials into narrow fractions and accumulation in hot material bins without any clumping.
5
Filtration System
The temperature of gases and steam at the outlet of the drying drum exceeds 110 °C, which completely prevents moisture condensation from forming on the plant's filters.
4
Heating
Heating of the RAP and mineral materials in the drying drum to a temperature not exceeding 200°C. The moisture contained in the RAP prevents bitumen burnout. During this process, bitumen is redistributed from the RAP throughout all mineral materials.
3
Dosing
Treated RAP, in amounts of up to 30% of the total mixture mass, is dosed together with mineral materials into the drying drum of the asphalt mixing plant.
2
Preparation
RAP must be treated with an aqueous solution of ReasphaltANT and stored for at least 12 hours.
1
Application of the Technology at Asphalt Batch Mixing Plants
Material consumption per 1 ton of asphalt concrete mixture in a Batch Asphalt Mixing plant
Using 30% of reclaimed asphalt pavement
Mineral materials - 62%
620 kg
Mineral filler - 4,2%
42 kg
Bitumen - 3,9%
39 kg
Reclaimed asphalt pavement - 30%
300 kg
ReasphatANT 0,01% + Water 5%
0,08 L + 40 L
New asphalt concrete mixture
Mineral materials - 88,5%
885 kg
Mineral filler - 6%
60 kg
Bitumen - 5,5%
55 kg
Filtration System
The temperature of gases and steam at the outlet of the drying drum exceeds 110°C, which completely prevents moisture condensation from forming on the plant's filters. When a water-based filtration system is used, the outgoing steam is converted into water.
5
Mixture Production
During heating and mixing, the bitumen is redistributed from the RAP throughout all mineral materials. The required amount of new bitumen and additives is then added.
4
Dosing
The treated RAP, in amounts of up to 90% of the total mass, is dosed together with mineral materials into the drying drum of the asphalt mixing plant. Material dosing is performed in accordance with the asphalt concrete mixture design.
Heating
Heating of the RAP and mineral materials in the drying drum to a temperature not exceeding 200°C.
3
Preparation
Preparation of treated RAP is carried out using any type of mixing units, including asphalt mixing plants (operating in cold mode), as well as by mixing with front-end loaders.
1
2
Application of the Technology at Continuous Asphalt Mixing Plants
Material consumption per 1 ton of asphalt concrete mixture at a Continuous Asphalt Mixing Plant
Improvement of Particle Size Distribution
Reclaimed asphalt pavement - 80%
800 kg
Mineral materials - 19%
190 kg
Bitumen - 1%
10 kg
ReasphaltANT 0,01% + water 5%
0,08 L + 40 L
Using 100% Reclaimed Asphalt Pavement
Reclaimed asphalt pavement 100%
1 000 kg
ReasphaltANT 0,01% + water 5%
0,1 L + 50 L