Cold recycling – sophisticated process, perfect results
Cold-In-Place-Recycling has become an established technology worldwide and GRT is the first company to introduce this technology to the Indian road sector. There is now a major focus of the Ministry, NHAI and road developers to speed up the rehabilitation and construction of road pavements with better, long lasting quality.
CIPR with binders such as foamed bitumen produces flexible and highly durable base layers. The recycled in-situ material is bound and forms part of the pavement structure – forming a renewed stronger foundation for the final BC overlay. Recycling is proved to produce stronger pavement and can reduce layer thickness saving money and time.
The microprocessor-controlled injection systems installed in all GRT recyclers are calibrated to produce perfect consistency and inject biding agents such as foamed bitumen into the in-situ with precision.
The perfectly engineered process impresses with:
When using CIPR the stabiliser recycles the damaged road pavement using machines with 200 individual tungsten teeth, while simultaneously injecting agents such foamed bitumen, water and cement in the required quantities. GRT’s technique produces a homogeneous mixed material in a single pass.
GRT’s success and the approval gained in India recently is a reflection of the new found acceptance for new technologies such as the use of CIPR & foamed bitumen.
CIPR technology is well suited to India and will be used wherever road pavements are exposed to high traffic volumes or overweight transport and has the ability to rehabilitate failed pavements in speeds never seen before in India. GRT’s foamed bitumen technology offers a state-of-the-art solution and is used in both structural rehabilitation and new construction projects. All GRT mixes containing foamed bitumen are construction materials meeting all NHAI and IRC codes.
- Road Rehabilitation
- Road Widening
- Rural Roads
IN EXCESS OF 4 MILLION SQUARE METRES HAVE BEEN RECYCLED by GRT.
GRT cold mixes produced using foamed bitumen with in-situ materials behave like a construction of the aggregate but homogeneous material with the constant inter-particle mixing of the bitumen binder and friction but significantly increased aggregate. Typical bitumen quantic cohesion (adhesion force) and ties range between 1.5% by mass strength. This type of material is and 2.5% by mass of the mixed also called BSM (bitumen-stabilized material. After final compaction, the material).
User friendly and workability is one of the distinctive features of CIPR. When OMC is within range there are no time limitations for the subsequent compaction processes. Post CIPR pavements can be opened to traffic temporarily immediately after completion. In many cases, the cold recycled layer is simply surfaced with a thin asphalt layer serving as a wearing course. Road maintenance is significanglty reduced due to the need to only focus on the wear surface post recycling, leaving the cold recycled base layers undisturbed and intact. This means lower road maintenance costs across your road assests.
Mostly all road base and crust materials in India or Recycled Asphalt (“RAP”) materials are suitable for recycling with foamed bitumen. GRT granulate both the crust layer and the base layers, mixing the material with foamed bitumen in-situ in a single pass. After compaction, a high-quality bituminous base layer is produced that is capable of withstanding extremely high traffic loads.
GRT stabilised marginal soil usually not considered suitable for road construction, providing extraordinary results.