Skip to main content

Soil compaction on key highway project

A recently delivered Dynapac CA250 single drum vibratory roller is carrying out important soil compaction duties for Vietnamese contractor Phuc Thinh Co. The machine is preparing compacted earthworks for a new interchange on Vietnam's Hanoi-Thong Long highway, some 35km west of Hanoi. The CA250 is the company's first Dynapac and was purpose-ordered through local distributor V Long Co. According to a spokesman for the contractor, its specification was found to be highly suitable for the interchange project a
February 29, 2012 Read time: 2 mins
The new Dynapac CA250 soil compactor is proving productive and reliable in the project to build a key new highway link in Vietnam
A recently delivered 206 Dynapac CA250 single drum vibratory roller is carrying out important soil compaction duties for Vietnamese contractor Phuc Thinh Co.

The machine is preparing compacted earthworks for a new interchange on Vietnam's Hanoi-Thong Long highway, some 35km west of Hanoi. The CA250 is the company's first Dynapac and was purpose-ordered through local distributor V Long Co. According to a spokesman for the contractor, its specification was found to be highly suitable for the interchange project and is proving very effective in the application.

Phuc Thinh's contract for the interchange includes preparing and compacting more than 500m of graded earthworks leading to the highway at a final height of more than 3m. After spreading and levelling, the CA250 compacts the material to a final layer thickness of 100-150mm, complying with the specified K100 compaction standard. In total more than 3000m2 will be compacted while preparing the interchange access roads by Phuc Thinh during the seven month contract. The CA250 has been designed to operate for long shifts in tough applications and can carry out compaction of most soils. It is powered by a Cummins 4BT 3.9C water cooled turbo diesel engine, rated at 82kW, features a maximum operating weight of 12.7tonnes and has a 2.13m wide drum. The single drum vibratory roller provides a nominal amplitude (high/low) of 1.7/0.8mm and a maximum static linear load of 31.9kg/cm.

For more information on companies in this article

Related Content

  • The side effect – paving with a road widener
    December 13, 2018
    Sidewinder UK has been using its novel road widener machines on a series of paving jobs, including smart motorway projects. Sidewinder UK has carried out work on the M6 smart motorway contract between junction 16 and junction 19. The company used one of its road wideners to place and grade the final layer of sub-base to the balanced central reservation in readiness for Tarmac Contracting to pave the base and binder courses. An estimated 5,000tonnes of sub-base was used in the initial 6.4km x 4.7m wide st
  • Advances in materials testing
    April 10, 2012
    Quicker, better, more cost effective materials testing - Kristina Smith writes. Most developments in materials testing technology involve updating and upgrading existing machines, either to meet changes to standards or to satisfy new needs in the market. And occasionally, a manufacturer will come up with something completely new. PUMA - the precision unbound materials analyser - falls into the latter category. It has been developed by Cooper Research Technology and Nottingham Transportation Engineering Cen
  • Hand-held compaction control from Dynapac
    February 29, 2012
    CompLogger, a new hand-held compaction control system is being introduced by Dynapac as a soil compaction analyser. It provides a real-time image of compaction over the entire surface to be compacted. The easy-to-use unit can be used for production planning and throughout compaction and the data can also be saved for future quality control and evaluation.
  • Amman’s powerful performance plate provides productivity
    January 30, 2015
    Ammann claims high productivity and performance for its powerful new plate compactor. The newly-developed APH 110-95 widens the firm’s range of triple-shaft units and delivers 110kN, making it this is the most powerful vibratory plate compactor ever built by Ammann. This innovative unit is said to set new performance standards and features a fully hydraulic enclosed drive system with no V-belts and no centrifugal clutch, eliminating wearing parts in the drive. Smooth operation is claimed as a result, with p