Skip to main content

Improved airport for Thimarafushi atoll

Thimarafushi forms part of the Thaa Atoll lying in the Indian Ocean but access has been limited in the past. However the construction of a new airport planned by the Maldives Government will help develop the tourist trade, boosting the local economy. Most visitors previously used the country’s two international airports, using these as hubs for flights to the country’s six domestic airports. This has limited travel to only a few of the country’s 1,192 islands, of which around 200 are inhabited. As a result,
August 29, 2014 Read time: 3 mins
Caterpillar machines provide new runway surface on Thaa Atoll
RSS

Thimarafushi forms part of the Thaa Atoll lying in the Indian Ocean but access has been limited in the past

However the construction of a new airport planned by the Maldives Government will help develop the tourist trade, boosting the local economy. Most visitors previously used the country’s two international airports, using these as hubs for flights to the country’s six domestic airports. This has limited travel to only a few of the country’s 1,192 islands, of which around 200 are inhabited. As a result, reaching most of the islands requires travel by boat.

A few years ago, the Maldives Government began to build its seventh domestic airport, on the island of Thimarafushi. The scenic island was chosen because of its natural beauty, and also because it could serve as a hub for those wanting to travel by boat to other nearby islands.

Maldives Transport and Contracting Co (MTCC), a customer of 4018 Caterpillar Paving dealer Tractors Singapore Limited, was awarded the contract to develop the Thimarafushi Airport in May 2012. The project began with 31ha of land being reclaimed both for the construction of the airport and to provide adequate housing for the islanders. The reclamation portion of the airport project was completed in 2011. Project plans called for a 1200m long by 30m wide runway and taxiway, with an asphalt surface. MTCC used a fleet of Cat equipment through most phases of the project, including a CS533E soil compactor, AP655D asphalt paver, CB434D vibratory asphalt compactor, CW34 pneumatic compactor, 336D L hydraulic excavator, M313C wheeled hydraulic excavator, 120K grader and 924Gz wheeled loader.

Logistics posed a challenge as the equipment had to be delivered by landing craft and barge, which included the hot mix plant, which was transported in pieces. Operators, too, were hard to find. Tractors Singapore Limited provided training to the customer and operators before the project started. During the building of the runway, a Tractors Singapore Limited product application expert and an engineer visited the jobsite to provide assistance. But even their travel was difficult. First, they had to fly to a nearby atoll, and then use sea transportation. It took about a half day of travel to reach Thimarafushi from one of the country’s two international airports.


The runway is surrounded by sea on the reclaimed land. Site preparation included the placement and compaction of aggregate. Project specifications required that 100% compaction densities were achieved on four layers.

A 200mm sub-base was placed first, and the Cat CS533E compacted it to 150mm. The same process was followed for the second layer. The third layer consisted of binding material that was placed at 130mm and compacted to 100mm.

The fourth layer was asphalt with aggregates of 12.5mm, 9mm and 6mm. It was placed at 60mm and compacted to 50mm. A Cat AP655D asphalt paver with AS4251 screed handled the paving.

Paving production was limited because of the hot mix plant’s capacity of 45tonnes. During the average day, the paver placed a strip that was 5m wide and 700m long. Dump trucks hauled the mix the short distance from the plant to the runway.

RSS

For more information on companies in this article

Related Content

  • Continuous paving for smoother roads
    May 9, 2017
    UK contractor Aggregate Industries is now able to deliver smoother road surfaces thanks to the latest addition to its machine fleet. The firm is a pioneer for the use of material transfer vehicles (MTV) that allow for uninterrupted, non-contacting flow of materials into a paver. As a result, the firm says it is able to help deliver road projects more efficiently and economically. The company has acquired the latest Vögele MT 3000-2i Offset Powerfeeder. Equipped with a pivoting conveyor this machine allows t
  • Developments in concrete road construction
    February 7, 2012
    Innovative developments are pushing forward concrete road construction techniques. The concrete road sector looks to benefit from some key innovations and developments now coming to market or being employed in different territories. Irregular weather and environmental conditions can alter the rate at which concrete cures, with a risk of plastic shrinkage cracks that can compromise the integrity of a pavement. Contractors cannot control the environmental conditions of a paving project and when weather patter
  • Efficient processing of RAP in the mix
    December 19, 2017
    There are important methods aimed at the reuse and recycling of reclaimed asphalt pavement (RAP) a number of problems have to be solved however, mainly concerning the elimination of moisture content and how best to heat the RAP without damaging the binder. When RAP is used in percentages of up to 30-40% of the final mix, heating can be carried out through direct contact with hot aggregates. On the other hand, in order to use higher RAP percentages, up to 100%, the plant has to be fitted with a specific h
  • Southeast Asia’s cutting-edge asphalt production
    April 1, 2014
    An eye-catching state-of-the-art asphalt plant is making a big impact in South East Asia, while other new and proven asphalt plant technology remains in demand in Europe and other continents. Guy Woodford reports Marini China has ventured out of its traditional Chinese market to deliver to a Singaporean customer what is claimed to be Asia’s largest asphalt plant. An impressive 45m tall and capable of producing 360tonnes/hour, the plant model was in response to Ley Choon Group’s request for a new plant ahead