Specification

The Mastic will be prepared with Cookers or Coldruns either mechanically agitated or manually.
The mastic composition is on Bitumen , Stone Dust, Stone grit & lime stone powder.
The burner of the cooker is fired & LSP in required quantity is heated along with SD &SG in machine .while bitumen is heated for melting separately in heating drums.
Once lime is hot ,SD is added and then Bitumen is mixed followed by SG, mix well and then the mastic is ready
Joints are cut in L shape
Provide anti-skid treatment as per specification (If required)
Open the masticated area once the normal room temperature is achieved
Typical composition of mix desighn will be as under
- A)Base mastic –The ratio will be a)Lime Stone Powder:-300kgs b)Sone Dust:- 460kgs c)Bitumen (15.55-16.02%) ie. 140-145 kgs As Per MORTh 4, Table500.32
- B)Mastic: To added stone grit, ie. 600 kgs the total batch size will be aprox. 1500kgs.The the hardness number as per MOST will be 10-20 Bitumen will be as per 500.29