The rapid growth of construction and property development along with the impacts of climate change means builders, architects, designers and engineers are looking for smarter ways to protect and reinforce the structures they build, minimise costs and maximise efficiency. CLEVA-Crete™ is the proven technology that helps them do just that and allows them to tame the beast.
CLEVA-Crete are a South Australian, independent, and privately owned company. We have over 10 employees, several private contractors, and a robust growth strategy. We have a complete supply chain network supplying admixture to all ready-mix companies across all Australian states and Territories including remote areas.
CLEVA-Crete formulates and supplies admixtures to concrete ready-mix companies. We have the technology which disrupts normal capillary formation, delivering a proven solution where ultra-low permeability and superior long-term shrinkage reduction is required. Our smart technology provides a superior finish, lower heat of hydration, reduced ASR, no slab curl, or surface dusting. This revolutionary technology qualifies CCMC (CLEVA-Crete Modified Concrete) for a 25-year warranty for the flooring industry and is positioned at the most attractive price point in the marketplace.
CLEVA-Crete’s mission is to build confidence worldwide for the wisest choice in concrete admixtures that create super-structures and buildings which have a lengthened service life and enable builders to overcome on-site challenges during construction and a better end product and asset for each end user.
Our core values guide us in everything we do to support our customers.
We value our employees highly and respect their personal and professional needs and encourage open communication in the workplace as excellent customer service starts within the team.
Cultural diversity encourages collaboration and cooperation in the workplace, and we are a proudly culturally diverse workplace.
We constantly strive for perfection in all we do. Our aim is to deliver services efficiently and ensure the quality of our product and service is consistent.
Whether for our environment or our employees, we take pride in being accountable for our decisions, actions and project deliverables.
Why Choose Us
Tried and tested
100% Failure Free
The 3 most asked questions from all Stakeholders are…
Where did this revolutionary waterproofing technology come from?
CLEVA-Crete technology is as old as the hills.
One hundred years ago, the Engineers for the massive Hoover Dam project, due to it’s size, required a design life of over 1,000 years. No project prior to this had a design life that spanned any more than 50 to 75 years.
This seemingly impossible task was made a reality when the United States Army Corps of Engineers discovered that the 2,700 year old elevated aqua-ducts that were built throughout Europe, held the secret in the materials making up the mortars they used to line these long conduits designed for holding water.
After a number of trials, D 5084 testing was carried out in their own labs, which provided enough evidence to show that it will take almost 1,500 years for any water with a head pressure of over 75 feet (23 metres) to penetrate 4” (100mm) into their new concrete mix design with this old/new technology.
This provides some insight into the origin and modern history of this superior technology that works.
In what way does CLEVA-Crete differ from the others?
There are 2 (two) main competitors in this waterproofing space;
Crystal growth technology that initially allows all moisture to enter the concrete matrix via the capillaries. These crystals grow and expand very well. As they do, they slow down the travel speeds of the wicking moisture enough to notice a drying out effect.
Many Engineers have issues with this reactive technology, due to the fact that because it requires ingress of moisture via the capillaries to get the swelling of their crystals, this will lower the pH of the entire matrix, especially around the steel, triggering the deleterious process to the steel itself and the surrounding concrete. This usually results in eventual catastrophic failure.
As the crystals form en masse, the excessive product will leach out in the form of an efflorescence that effects the aesthetics of exterior or overhead buildings or infrastructure elements.
Hydrophobicity Chemicals enrich the concrete matrix with oils, mostly sought from just under the leather of animal skins, this super soft oil is extended with additional hydrocarbons, that when in concrete, flow through to the extremities of the matrix, hydrophobically fighting off any moisture wanting to enter the matrix. This material is extremely effective in keeping all the water out.
Many Engineers have noticed in compression testing that these hydrophobic chemicals will weaken the concrete in some cases by 30+ %, as they slow the hydration water from its normal connection/reaction with the cementitious and supplementary cementitious materials.
Applicators and finishers of this technology complain of an unusual offensive odour.
What makes CLEVA-Crete so smart?
CLEVA-Crete is a concrete admixture designed to work with the free water and various components of the cement during hydration, to build the purest (amorphous) type of C-S-H.
This is an exact science, calculated using the proven ‘Powers’ calculation model that works out how much free water there is in your mix design.
CLEVA-Crete does not rob any hydration water in it’s process, rather it creates a non-hygroscopic, shrinkage and crack reducing concrete. This is mainly due to the fact that the usual osmosis effect on concrete as it is drying, is stopped and the moisture is retained in the slab where it forms nano sized pure C-S-H. This retention of moisture is the key to it’s lowering typical shrinkage.
Many white papers have been written that support this anomaly, proving that this nano sized C-S-H adds low permeability and strength to concrete, while adding ductility and thus resultant durability to the life of concrete structures.
Today’s builders are cleaning up as this technology reduces moisture egress so effectively that they are able to schedule the early installation of today’s VOC free moisture sensitive water based coatings, adhesives, and resilient vinyl flooring products.
Why would you use anything other than CLEVA-Crete!