The 2016 Census found that two-thirds of Australians are now living in cities. Our urban population is growing at over 10% per year, putting pressure on the space we live, work and play in. The modern urban lifestyle demands that we build better, taller, faster and more efficiently. Materials, systems and tools need to be up for the challenge. Spray-applied concrete, or shotcrete, is just one example. This method not only places and compacts concrete in one smooth motion, but allows concrete to be placed in areas that are hard to access with conventional placement.
Yet not all shotcretes are made the same. Some brands will get the job done faster and allow other trades onto the site sooner, while others can slow you down.
To help your business keep up with the pace of construction and urban growth, Holcim has developed SupersprayTM, a wide range of high-performance shotcrete mixes that are reliable and resilient.
Discover its benefits
Less rework
Engineered to stick - first time, every time
Reduced wastage
Low rebound
Better quality of finish
Rapid mix set time
More productive labour
Mix consistency for faster finishes
Certified product
Range of durable mixes which are compliant with roads authority specifications
Selecting the right product
- Holcim offers a range of individual SupersprayTM mixes to suit various applications.
- And what we don’t have, we’ll work with you to develop or customise.
- Use this table to quickly identify the SupersprayTM product you need for your project. Then simply give us a call on 131188 to confirm the product requirements and place your order.
Projects using SupersprayTM
The Northern Airport Precinct - Sydney Airport
A Superspray project
During 2016, Holcim supplied Shotcrete Australia with 240m3 of 40 Mpa Superspray High Performance Spraymix on the Northern Airport Precinct works project at Sydney Airport.
The Seymour Whyte project involved the preparation and application of Shotcrete for the Airport surface drainage system.
Shotcrete Australia were very happy to award supply to Holcim based on:
- Reliability of supply
- Service - This was particularly important due to the quantities to be supplied
- Quality of the product - This project had high performance specifications to meet
The King Georges Road Interchange Upgrade
A Superspray project
During 2016, Holcim supplied to Shotcrete Australia for the Fulton Hogan M5 project with 400m3 of 40 Mpa Superspray High Performance Spraymix on the King Georges Road Interchange Upgrade.
The project involved the supply and installation of a permanent ‘soil nail wall’ to RMS specifications.
Holcim were successful in securing supply based on
- Quality - The project had strict RMS testing requirements. Product quality was one of the most important criteria for this project and Holcim was able to provide a compliant product.
- Service - was important because the project had challenging time and access restrictions. Flexibility in supply service provided by Holcim was critical
Coordination and communication between Holcim and Shotcrete Australia assured all objectives, including quality, were achieved as per the standards and expectations of the project team.
Crystalbrook, Riley Hotel Cairns
A Superspray project
Holcim are currently supplying Baldwin Aquatic on the Crystalbrook, Riley Hotel project in Cairns with approximately 450 cubic metres of Superspray High Performance Spraymix.
The project involves the construction of 3 separate pools including a lagoon section with beach entry and a larger lap pool.
Holcim were successful in securing supply based on:
- Our excellent relationship with the principal contractors, Prime Constructions
- The reputation and consistency of the Superspray product
- Holcim’s large pour capability given individual pours over 100m3 in size
- Our local experience and knowledge which allowed us to assist with identification of local pumping and placing contractors
- Close project and technical support - both in the planning and delivery phases
Baldwin Aquatic appreciated the high level of communication and onsite focus from Holcim with the first pour of 100m3 completed successfully.
The Ville Resort & Casino - Townsville
A Superspray completed project
In October 2017, Holcim completed supply of Superspray to Kirratech Lifestyle Pools at ‘The Ville’ Townsville as a part of a $40 million investment from the new Resort owner Colonial Leisure Group (CLG).
The major renovation and expansion program of the existing resort buildings also included the construction of a new 50 metre, resort style pool facing to the ocean. The overall design of the pool is the first of its kind in Townsville. The pool is edged with timber decking, infinity edges on North and South sides and includes the "Splash Bar" swim up bar.
Kirratech Lifestyle Pools are noted as one the few large scale commercial pool builders in North Queensland and awarded supply to Holcim based on:
- The reputation and consistency of the Superspray product
- Holcim’s capacity to supply the required 100m3 per pour sequence
- Close project and technical support - both in the planning and delivery phases
Kirratech Pools Manager, Trevor Boss, and Site Manager, Jody Atrill, commended Holcim for their service and support throughout the project and for the professionalism of Holcim drivers in what was a very challenging but ultimately spectacular, finished project.
Frequently Asked Questions
Does it comply with Australian Standards?
Yes, Superspray complies with the relevant Australian
Standards.
Does Superspray comply with Roads Authority
requirements?
Yes, Holcim has a range of Roads Authority compliant
Superspray mixes available. We can develop mixes to meet
Road Authority specifications where we don’t have what is
required. We recommend that you contact your Holcim Account
Manager to discuss your specific Roads Authority requirements.
How much rebound could I expect with Superspray?
Superspray has been developed with the overall optimal material
gradation in mind and incorporates specialty additives to
minimise rebound and maximise adhesion. A significant
reduction in rebound can be expected compared to conventional
shotcrete mixes. The amount of rebound will also depend on the
substrate the mix is being sprayed onto, the spraying technique
and the velocity of the spray.
How long after I place Superspray can I ‘cut or shape’ it?
Superspray can typically be cut or shaped almost immediately
after spraying. If you have specific set or finishing requirements,
we can tailor Superspray setting times to best suit your
requirements.
What is the setting time?
Depending on the ambient temperature, the concrete will start to
set 3-6 hours after placing. Apart from the first few hours when
Superspray is still plastic, the setting time is comparable to that
of a ‘traditional’ concrete.
Will a high amount of steel prohibit the placement of
Superspray?
Possibly, if there is a high level of congested reinforcement. Our
Concrete Technologists can help you achieve maximum
compaction in these situations and assist with the selection of
aggregate size.
Can you put fibres in Superspray?
Yes, Superspray can be supplied with either micro or macro
synthetic (plastic) fibres or steel fibres. The application and
mesh type to be used will determine the fibre type and dosage.
Each Superspray mix is adjusted accordingly to take into
account the fibre type, dosage and performance expectations.
What ambient conditions can I pour in?
You can place Superspray provided the temperature is between
5 and 30°C. At low temperatures, 5-10°C the setting time will be
slightly longer.
How long does the Superspray stay ‘plastic’?
Superspray is normally developed to retain its workability for up
to 90 minutes. For special situations this may be extended or
shortened.
What type of surface finish can I obtain with Superspray?
A range of excellent finishes can be achieved such as ‘off the
gun’ for a stone like look. Wood float and sponge and steel
trowel for a tighter finish. Decorative effects are also achievable.
What preparation is required before spraying?
Superspray can be sprayed onto a range of varying substrates.
All loose material should be removed and the substrate surface
should be dry.
Can I add waterproofing additives to Superspray?
Yes a range of suitable additives can be added to Superspray
depending on the performance requirements. Care should be
taken to ensure the correct mix and overall system is used for
your application, Holcim can assist in this process.
Can I add coloured oxides to Superspray?
Yes, a full range of colours are available with Superspray. Your
Holcim Account Manager can assist with oxide selection.
Where can I get more information on Superspray?
Use the contact details below to talk to your Hocim Account Manager.
