Mining Roads

Mining industry is one of the major factors in Indonesia’s economic highlights. The industry requires a strong support to withstand the increasing demand of the mine. One of the important infrastructures of a coal mining is the hauling road. Since 2004, WASCO had started to construct an approx of 70 km hauling road of a public listed coal mining company at Kalimantan, i.e. PT Adaro Indonesia. Until to date, the company had entrusted WASCO to maintained and conduct expansion of the hauling road.

CHIP SEAL for Road Surfacing

Definitions

Giving an asphalt layer followed by the provision of a single layer of chipping. Providing asphalt and chipping can be done many times with the techniques and chip size according to the desired type of chip seal.

Materials

  • Bitumen: Asphalt (hot), Polymer Modified Bitumen, Bitumen Emulsion polymerized
  • Aggregate: Single size, Clean, Elbow

Chip Seal Materials

Types of Chip Seal

  • Single Chip Seal
  1. Layer of Chip Seal Aggregate
  2. Layer of Bitumen
  3. Layer of Prime Coat
  • Double Chip Seal
  1. 2nd Layer of Chip Seal Aggregate
  2. 2nd Layer of Bitumen
  3. 1st Layer of Chip Seal Aggregate
  4. 1st Layer of Bitumen
  5. Layer of Prime Coat
  • Double Chip Seal + Geotextil
  1. 2nd Layer of Chip Seal Aggregate
  2. 2nd Layer of Bitumen
  3. 1st Layer of Chip Seal Aggregate
  4. 1st Layer of Bitumen
  5. Geotextil
  6. Layer of Tack Coat
  7. Layer of Prime Coat

Benefits

  1. More economic cost than hot mix pavement or concrete pavement
  2. There is no minimum thickness
  3. No need heating of aggregates
  4. High stability
  5. Easy in implementation
  6. Require simple equipment
  7. Easy in maintenance
  8. Can be use after 2 hours of spreading time

Wasco’s Chip Seal Applications

  • Coal Mine Haul Road of PT. Adaro
  • Coal Mine Haul Road of PT. Indominco Mandiri