Q1 Tower Reaches New Heights in Gold Coast, Australia

Q1 Tower, Gold Coast, Australia
Ove Arup & Partners
Sunland Group LTD.
Concrete Supplier
Readymix Concrete
GCP Solution
ADVAⓇ 133 superplasticizer
Project Profile
Project Profile

Supporting an impressive design

Q1, the world’s tallest residential tower is an impressive enhancement to the Gold Coast skyline. The tower has a 10-story observatory, as well as the fastest lifts in the Southern Hemisphere. It also has the world’s longest spire at 97.5 meters.

Designing a striking commercial space

To construct a commercial building of such height required the very best superplasticizer available, as all concrete needs to be pumped right up to level 80, some 259 meters above ground. The concrete also had to meet a slump range of 160 mm to 200 mm for different floor levels because of rebar interaction.

Requiring superior cement characteristics

Concrete supplier Readymix approached GCP Applied Technologies for the new generation ADVA® 133 High Range Water-reducer based on a revolutionary co-polymer technology. It displays superior cement agglomerate dispersing characteristics, resulting in lower dosages for higher and better slump control. ADVA® 133 superplasticizer allows concrete to be produced with very low water to cement ratios, without affecting workability. It is ideal for high slump concrete where there is restrictive rebar interaction.

This highly effective superplasticizer allows for quick placement of concrete without segregation or loss of strength for the commercial building. All concrete was pumped to various levels, with no intermediary pump being used

The project was struggling to meet deadlines when it reached 50 floors as construction stopped at more than 30 knots wind speed. There were high wind speeds, especially from floors 60 and above. Thanks to the use of ADVA® 133 and the Readymix mix-design adjustments, the project came back on schedule by the time it reached the 80th floor.


gcpat.com | North America Customer Service: 1 877-4AD-MIX1 (1 877-423-6491)

This document is only current as of the last updated date stated below and is valid only for use in the United States. It is important that you always refer to the currently available information at the URL below to provide the most current product information at the time of use. Additional literature such as Contractor Manuals, Technical Bulletins, Detail Drawings and detailing recommendations and other relevant documents are also available on www.gcpat.com. Information found on other websites must not be relied upon, as they may not be up-to-date or applicable to the conditions in your location and we do not accept any responsibility for their content. If there are any conflicts or if you need more information, please contact GCP Customer Service.

Last Updated: 2020-08-31