Southern Cross University Car Park Building C
In November 2018 ALLROADS was awarded the $1.9m contract to undertake construction of the Southern Cross University Car Park upgrade for Building C.
Specific scope of works included:
Disposal of 629m3 of PFOS material,
394m2 of rock filled wrapped in A46 geotextile subgrade treatment,
Placement and compaction of 766m³ of CBR 45 material,
12,660m² of pavement stabilisation, primed and sealed,
Placement of 1,812tonnes of BCC Type 3 Multi-Grade asphalt and 1,212tonnes of BCC Type 2 Multi-Grade asphalt,
56m2 of concrete medium, watermain connection,
Adjustment of 11 stormwater manholes, and,
Realignment of stormwater drainage lines.
One challange faced by the project team was the differential settlement within the subgrade pavement previously treated from a previous project. This saw ALLROADS conduct pavement investigations, to redesign the pavement and undertake subgrade treatments including isolated replacement with CBR 45 material, rock filled wrapped in A46 geotextile and pavement stabilisation at various compositions.
Stormwater drainage structures, also affected by the differential settlement, were repaired and drainage pipes were relined in lieu of full reconstruction which saved the client a substantial amount of money.
The project was delivered one week ahead of program with Practical Completion issued upon the first inspection with no rectifications. The project was also delivered to the highest QHSE standards with no quality or safety non-conformances issued.
Detailed co-ordination between Contractor, Client and Designer to allow for onsite work-shopping of design revisions
Maintained a safe and enclosed worksite 24/7 to minimise access risks to the general public and University Students
Effective and innovative use of on-site materials to minimise transportation of PFOS contaminated material
Disposal of 629m3 of PFOS soil
12,660m2 of pavement stabilisation at 6.5% stabilisation blend of cement, lime and fly ash (44kg/m2)
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