726 HAY STREET REFURBISHMENT PERTH WA
MAINTENANCE - FACADE REFURBISHMENT
PROJECT 726 Hay Street Refurbishment
CLIENT Diploma Construction
DURATEC CONTACT Deane Diprose 0437 017 300
DESCRIPTION Duratec Australia were engaged by Diploma Constructions to carry out specialist concrete remedial works to the balconies and internal building at 726 Hay St, Perth. The works involve waterproofing to balconies, application of MCI, Xypex topping installations, conventional concrete repair, crack injection and glass flake coatings application. Internal beam repairs are being carried out with the use of sacrificial anodes with both the form and pour method as well as with patch repairs. This Heritage Listed site is the old Walsh’s building that was originally built in 1923 and is being converted into new offices and retail tenancies. It has an art deco style of architecture on the external facade.
HIGHLIGHTS
Night shift works are being undertaken with glass flake application to avoid disruption to the site with chemical odour with approx. 8,500 m2 to be sprayed.
Works being done to a very tight builders program with multiple crews and a peak manning level in excess of 20 personnel.
IMAGES (FROM TOP TO BOTTOM) •
Overview of the external facade. Formwork set up ready for letterbox grout pour. Black glass flake epoxy was airless sprayed on the roof soffit.
MEMORIAL CLOCK TOWER RESTORATION MAINTENANCE - HERITAGE FACADE REPAIRS
SUBIACO, WA
PROJECT Subiaco Memorial Clock Tower Restoration Project
CLIENT City of Subiaco
DURATEC CONTACT Tiernan Byrnes
0439 810 549
DESCRIPTION Originally erected in 1923 to commemorate the fallen of World War One, this Perth memorial now pays tribute to soldiers who fell in World War Two, Borneo, Korea, Malaya and Vietnam. In recent years, the structure has suffered due to exposure to the elements and now requires remediation. Duratec was enagaged by the City of Subiaco to perform careful cleaning of the century old stone and brickwork, structural strengthening, installation of new guttering and repairs and repainting of the existing surface and clock face. The scope included:
Careful repair and cleaning to facade limestone Like for like repainting of exterior Rejointing of granite stonework Interior structural strengthening New copper guttering system
HIGHLIGHTS
The clock structure was made watertight to ensure no further water ingress and increase its lifespan.
Duratec was proud to ensure that this wonderful piece of history was sympathetically restored in time for the 2015 ANZAC Day services.
IMAGES (FROM TOP TO BOTTOM) Overview of the facade. Stained and damaged limestone.
MEMORIAL CLOCK TOWER RESTORATION SUBIACO, WA
IMAGES (FROM TOP TO BOTTOM) Joint repairs. Cleaned corner. Clock face.
MAINTENANCE - HERITAGE FACADE REPAIRS
IMAGES (FROM TOP TO BOTTOM) Damaged limestone. Detailed limestone. Overview of restored facade.
CUSTOMS HOUSE FACADE REPAIRS MAINTENANCE - HERITAGE FACADE REPAIRS
FREMANTLE, WA
PROJECT Customs House Fremantle Facade Repairs
CLIENT Jones Lang LaSalle
DURATEC CONTACT Greg Oates
0411 494 894
DESCRIPTION Customs House was built in 1908 to house the main branch of the Customs Department of WA and is situated on a large block bordered on three sides by Phillimore, Packenham and Henry Streets. Constructed of brick with heavily moulded cornices and architraves, the building was heritage classified in 1974. The building now houses various local government organisations. Duratec has been engaged by Jones Lang LaSalle to remediate an area of the facade located at 7 Pakenham Street. The scope includes:
Removal of damaged render and loose coating Lead paint removal Steel repairs Steel preparation and painting Repair of cornice mouldings Rebuilding damaged window lintels to pre-existing profile Application of mineral paint protective coating system
HIGHLIGHTS
The lead paint removal requires fully encapsulated scaffold. Management of hazardous materials removal in a full working environment.
Pedestrian and vehicular traffic management in a busy street.
Maintaining access to Centrelink and customs services.
IMAGES (FROM TOP TO BOTTOM) Overview of the facade after repairs prior to painting. Removal of lead paint and render. Detail of repairs to balustrade.
OLD TREASURY BUILDING REFURBISHMENT PERTH WA
MAINTENANCE - DESIGN AND CONSTRUCT
PROJECT
Old Treasury Building Design and Construct Balcony Remediation Project
CLIENT
Built.
DURATEC CONTACT
Deane Diprose 0437 017 300
DESCRIPTION
Built awarded Duratec a remediation contract to provide design and construct building repair services to the heritage listed Old Treasury Building in Perth’s CBD. The Old Treasury building is over 135 years old. The refurbishment by FJM Properties is part of the master plan to transform the Cathedral + Treasury precinct into a mix of hotel, hospitality and retail uses. The works were performed under a design and construct contract with the brief to remediate and strengthen the balconies compliant with current Australian Standards Structural Design codes, State Heritage requirements and remain serviceable for a 100 year design life. Duratec rejuvenated the external facade and balconies while sympathetically preserving the original balcony components in strict accordance to heritage requirements. This included corrosion mitigation of structural steelwork, upgrading of seismic capacity, replacement of balcony slabs and repairs to concrete elements and the application of a protective coating system.
HIGHLIGHTS The project management team were in close consultation
with different designers, structural engineers and heritage engineers.
Duratec managed many subcontractors including
demolition, fabrication, sandblasting, tilers and painters.
The works involved detailed repairs to strict heritage
requirements including developing moulds to replicate the ornate features.
IMAGES (FROM TOP TO BOTTOM) Overview of the balconies to be refurbished. Repairs were required to columns and balustrades. Example of the ornate features that required repair and replication.
OLD TREASURY BUILDING REFURBISHMENT PERTH WA
IMAGES (FROM TOP TO BOTTOM) Installation of balcony slab waterproofing membrane. Bullnose repair. Installation of earthquake tie.
MAINTENANCE - DESIGN AND CONSTRUCT
IMAGES (FROM TOP TO BOTTOM) Trial of hybrid cathodic protection. Decorative ornate features moulding and casting. Strengthening colums with carbon fibre.
OLD TREASURY BUILDING REFURBISHMENT PERTH WA
IMAGES (FROM TOP TO BOTTOM) Column paint removal. Corbel repair - placement of anodes. Demolition and replacement of slabs.
MAINTENANCE - DESIGN AND CONSTRUCT
IMAGES (FROM TOP TO BOTTOM) Bullnose repair - sandblasting corrosion Demolition and replacement of slabs. Column rendering
OLD TREASURY BUILDING REFURBISHMENT PERTH WA
IMAGES (FROM TOP TO BOTTOM) Completed columns. Finished balustrades. Renovated corbels.
MAINTENANCE - DESIGN AND CONSTRUCT
IMAGES (FROM TOP TO BOTTOM) Detail of completed columns. Finished tiling to balconies. Overview of completed facade.
Perth Observatory Concrete Repairs Perth Observatory Bickley, WA
Maintenance - Concrete Repairs
Project Perth Observatory Concrete Repairs
Client Building Management and Works
Duratec Contact Greg Oates
0411 494 894
Description Duratec was engaged to perform concrete repairs to the Perth Observatory. Australia’s oldest continuously operating professional observatory, the Perth Observatory in Bickley, has just undergone a major makeover. The main telescope structure houses a dome 12.2 metres high on top of its supporting concrete base. Over the past 30 years, the sun fins and fin walls had developed corrosion and concrete deterioration. Duratec were tasked to survey and repair these areas. Using a combination of scaffold and EWP acceess, the technical division meticulously performed a complete inspection of the structure and identified the areas of concern. These were subsequently repaired and a protective coating applied. The eight week project ensures the longevity of the structure for many more years to come.
Highlights
The required repairs followed strict guidelines as the Perth Observatory is a heritage listed building.
The project was completed within a tight time frame. There were no safety incidents and the local pristine natural bush environment was left untouched.
Images (from top to bottom) Overview of the Perth Observatory dome. Work fronts were accessed from a combination of EWPs and scaffold. Repair area prepared and ready for concrete reinstatement.
Schools South Concrete Repair Maintenance - Concrete Repair
Perth South metropolitan Area
Project Schools South Concrete and Masonry Repairs to various school sites
Client Programmed Facility Management
Duratec Contact Deane Diprose
0437 017 300
Description Duratec was awarded concrete remedial works on nine different schools in the south metropolitan Perth area. The schools included: John Curtin College of the Arts, Kent Street, Thornlie, Kelmscott, Melville, and Lynwood Senior High Schools, North Lake Senior College, Darling Range Sports College, and Riverton Primary School. The works were carried out over the summer holiday period to avoid disruption during normal school times. The repairs were performed to improve the safety and overall aesthetics of the school’s buildings. The project involved repair works to masonry and concrete, engineered coatings, joint replacement, topping repairs and membrane repairs.
Highlights
Over 10,000 man hours with 60 personnel were involved working 13 day fortnights.
Close liaison with all stakeholders formed part of an extensive fast-tracked delivery program.
The scope was varied due to new defects and repairs identified once access systems were in place.
Concrete repairs included conventional form and pour utilising galvanic sacrificial anodes with high-strength micro concrete pours.
Images (from top to bottom) Example of a concrete repair area. The John Curtin College of the Arts Manual Arts building is a listed Heritage building.
Various forms of access were used to perform the repairs.
