OUR projects

Case Study

our solution for graincorp

Objectives

Following our onsite inspection of Graincorp Moree relative to the concrete remedial repairs required to external wall to the S300 Bin 15 as shown on site, we were pleased to be able to submit a comprehensive report and proposal for concrete cancer remedial works required. 

Our inspection showed that there was advanced concrete cancer spalling to one area of Bin 15 where the concrete silo had cracked allowing moisture to corrode the steel reinforcing and had expanded and blown out the external concrete surface for a length of approximately 15 lineal metres.

solutions

With the extent of the corrosion, urgent concrete cancer remedial repairs were required to strengthen and preserve the structural integrity of the silo. There was potential that if the repairs were not undertaken urgently the internal surface would have also been affected leading to a blow out of the silo and this would

have required extensive remediation works from both the external and internal of the silo. 

Repairs were able to be undertaken quickly and treated as a priority to avoid costly repairs in the future. In addition, the day to day operations of GrainCorp were not affected in anyway. 

Industry

industrial

Location

MOREE

SCOPE OF WORK

  • Supply crane to lift scaffolding to roof level, below the repair area.
  • Supply and install scaffolding to fully access the concrete spalling.
  • Supply and install specialist abseil rope access technicians to carry out remedial works where scaffolding is not practical to install.
  • Remove existing downpipe and store on site.
  • Remove all cracked concrete from around corroded steel reinforcing using jackhammers and fully expose the full perimeter of the steel.
  • Continue the breakout until clean steel if found and continue for a further 50mm.
  • Power grind steel clean to remove all corrosion.
  • Prime steel with Parchem Fosroc Nitoprime Zinc Rich Primer.
  • Supply and install 10x Galvashield XP Zinc Anodes as per manufactures instructions. – These anodes extend the life of the reinforcing steel.
  • Supply and install stainless steel pins and epoxy into the concrete.
  • Build out concrete repair with Parchem Renderoc HB 40 Cementitious repair mortar finishing flush with the external wall of the silo.
  • Remove all trade waste from site.

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Case Study

our solution for RAMSAY HEALTH CARE

Objectives

Following our onsite inspection of Ramsay Health Care in Albert Road, Melbourne, we were pleased to submit a comprehensive report and proposal for remedial works. 

Our inspection showed that the existing roof area has originally been waterproofed with a built-up torch on sheet membrane system. 

This membrane had deteriorated, and the laps had delaminated allowing water to egress under the sheet membrane, spread out over the concrete roof slab, and leak internally. 

solutions

This leak was occurring in many areas throughout the roof and we recommended to install a liquid membrane to the complete roof area with fibreglass reinforcement to all laps and joins to provide a fully seamless waterproof membrane system. 

Industry

Health care

Location

melbourne

SCOPE OF WORK

  • Clean down complete roof area to remove all dirt and debris.
  • Prepare existing membrane system for waterproofing.
  • Prime complete roof area with Duromix WBE epoxy primer including all turnups and and plant areas.
  • Fully waterproof all laps and joins to existing sheet membrane to complete roof area with Duromastic AC liquid membrane reinforced with fibreglass bandage.
  • Waterproof all roof penetrations, solar panel bracket penetrations, and all mechanical plant penetrations with Duromastic AC liquid membrane reinforced with fibreglass bandage.
  • Supply and install three additional topcoats of Duromastic AC liquid membrane to complete roof and perimeter turnups, finishing under the perimeter flashing to manufactures finished specification rate of 1.5L per M2.
  • Supply and install three additional topcoats of Duromastic AC liquid membrane to complete plant area including the concrete plinths around mechanical plant to manufactures finished specification rate of 1.5L per M2
  • Remove all trade waste from site.

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Case Study

our solution for monash health

Objectives

Another client, Monash Health, contacted us as they had discovered water leaking in their building.

Following our comprehensive inspection of the site, we found that the existing waterproofing membrane to the complete deck area had failed and water was penetrating between the layers of the bitumen membrane and was pooling under the membrane and tracking along the main roof slab. This was penetrating through slab cracks and into the hospital kitchen.

solutions

We were able to provide a solution solution by removing the pavers from the entire balcony and professionally installing a new 2-layer Soprema Soprasun 3mm torch on sheet membrane to complete area as well as reinstating all flashings and pavers. 

Our work also came with a comprehensive report along with a 15 year guarantee.

Industry

Health care

Location

melbourne

SCOPE OF WORK

  • Supply and install temporary fencing to completely barricade the work area off from the public.
  • Remove the large concrete pavers to expose the failed waterproof membrane system and store on site.
  • Remove the existing two-layer membrane system to expose the roof slab and expansion joint and dispose from site.
  • Remove all existing joint sealant.
  • Diamond saw cut all cracks in roof slab and fill void with polyurethane sealant.
  • Supply and install backer rod and polyurethane joint sealant to full length of expansion joints.
  • Prime exposed concrete slab to complete area with membrane primer.
  • Supply and install two layers of Soprema Soprasun 3mm torch on sheet membrane to complete area.
  • Reseal vertical expansion joint behind downpipe with polyurethane sealant.
  • Carry out water test and reinstate pavers on completion.
  • Remove all trade waste from site.

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Case Study

our solution for alliance strata group

Objectives

El Sandi, a residential apartment building facing Main Beach in Forster, was suffering from advanced corrosion to the reinforcing steel embedded within the concrete façade, causing extensive concrete spalling. 

Not only was the structural integrity of the building rapidly deteriorating, it also became a huge safety issue as large pieces of concrete were becoming dislodged and falling, narrowly missing residents below.

solutions

RCR were contracted to carry out a thorough assessment and scope of works to fully remediate the front façade of the building which included full removal of all affected concrete to the complete structure, inspecting the diameter of corroded steel and welding new reinforcement steel as required, treating all remaining reinforcing by dry ice shot blasting, coating steel with Nitoprime ZincRich protective coatings and forming and pouring Parchem LA55 reinstatement mortar. In addition, Galvashield XP Zinc Anodes were installed to prolong the life span of the building. 

Works were carried out and completed to the full satisfaction of the committee and within our projected timeframe, minimising downtime for the owners corporation.

Industry

Strata

Location

forster

SCOPE OF WORK

  • Supply and install temporary fencing to completely barricade the work area off from the public.
  • Remove the large concrete pavers to expose the failed waterproof membrane system and store on site.
  • Remove the existing two-layer membrane system to expose the roof slab and expansion joint and dispose from site.
  • Remove all existing joint sealant.
  • Diamond saw cut all cracks in roof slab and fill void with polyurethane sealant.
  • Supply and install backer rod and polyurethane joint sealant to full length of expansion joints.
  • Prime exposed concrete slab to complete area with membrane primer.
  • Supply and install two layers of Soprema Soprasun 3mm torch on sheet membrane to complete area.
  • Reseal vertical expansion joint behind downpipe with polyurethane sealant.
  • Carry out water test and reinstate pavers on completion.
  • Remove all trade waste from site.

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OUR PROJECTS

recent ProjECTS

View our current and past projects below

Oasis Apartments - Roof & Concrete Remedial Services - RCR Services

Oasis Apartments

RCR was contracted by Oasis Apartments, Nelson Bay to carry out remedial waterproofing works to the flat concrete roof slab. The roof slab had numerous

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Sanitarium - Roof & Concrete Remedial Services - RCR Services

Sanitarium

Sanitarium in NSW recently engaged RCR to waterproof the roof of the grain silos. Over the years the existing sheet membrane had deteriorated and was

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Muswellbrook Hospital floor sealing - Roof & Concrete Remedial Services - RCR Services

Muswellbrook Hospital

Muswellbrook hospital’s plant room floor areas had never been waterproofed and the concrete floor slab leaked extensively into the ward below, rendering them unusable during

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