Radcon is lifetime waterproofing: it will waterproof the concrete for its entire useful life. Once Radcon is applied to cementitious concrete the structure will never leak, the steel will never rust, although attack from the underside of such untreated areas may occur.
Radcon treated areas will permanently eradicate concrete spalling whilst preventing freeze/thaw and de-icing salt damage.
Testing furthermore demonstrates that the penetrated zone increases in hardness from 6 to 8 on Moh’s scale; 8 being equivalent to granite.

Radcon must be applied above 5°c to ensure there is no moisture frozen inside the concrete to be treated. Furthermore Radcon can only react with free calcium and water to create it's chemical seal with the temperature being 5°c or above.

In very high temperatures around 40 degrees Centigrade Radcon will encounter increased evaporation prior to soaking into the concrete, resulting in product wastage. To avoid this it is recommended that where possible spray Radcon in the early hours of the morning when the concrete will be cooler. Additionally use whatever methods are possible to increase evaporative cooling so that the concrete temperature is lower prior to application. This will minimise any wastage.  
Once Radcon has been properly applied, temperature becomes irrelevant making the product suitable for sub-zero or high-heat applications. This has been proven by numerous Radcon done in the intense heat of the Gulf region of the Middle East and the freezing temperatures of Eastern Europe.

The Material shall be a clear colourless, odourless, sodium silicate based material as globally supplied by Radcrete Pacific or their nominated global agents.
The material shall react at ambient temperatures with free lime present in the concrete forming non-water soluble complex calcium silicates which are chemically resistant compounds that fill the pores of the surface and sub-surface concrete including any leaking cracks present to produce a continuous sub-surface membrane with outgassing properties.
The material supplier must be able to produce a Federal Government certification confirming the materials ability to conform to the equivalent of a protective surface coating Clause 4.3.1(c) of AS3600 Concrete Structures Code to ensure you are purchasing a genuine waterproofing technology and “NOT” a generic sealing material only.
Suitable waterproofing certifications would include BBA certification, EU certification or Australian Government certification by CSIRO Technical Assessment.
Once applied the material will have the capacity to re-seal any newly formed cracks as may appear, preventing both water and salt ingress to all reinforcing, prevent concrete spalling and prevent freeze/thaw damage.

Radcon uses water to waterproof in the same way Volclay (volcanic bentonite clay) reacts.
Only instead of being on the surface Radcon is creating the same barrier within the first few millimeters of Radcon penetrated concrete.
Given that tests confirm 14mm to 17 mm product penetration in 40 m.p.a. concrete, any water or salts penetrating the first 2-3 mm is of no concern to the structures lifetime durability given any reinforcement maintains 20mm + concrete top cover.

Obviously by now you will probably have established that Radcon #7® is a product with living characteristics and is a water activated material.

 All water based paints and water based acrylic membranes should “NOT” be placed directly over Radcon #7® treated concrete.

 If you are using a water based acrylic membranes for detailing penetrations, strip seals etc, then complete this work first on your concrete structure, allow to cure in full, then proceed with Radcon #7® waterproofing.

 The only other warning on coatings is “AVOID” alkyd line-marking paints.  These paints are designed to sit on the surface of concrete with minimal absorbency into concrete. As Radcon #7® has reduced absorption substantially, line- marking paint will tend to sit on the surface and delaminate.

 Your options such as strip seals, is to do your line marking prior to Radcon #7® application or “ideally” apply Radcon #7® to the entire area, then use a turpentine or spirit based yellow paint for line-marking. 

 As absorption is substantially reduced these approaches will produce similar results as if a line-marking paint had actually been applied.

 Other coatings, either cementitious or spirit based, turpentine based paints will suffer no loss of adhesion.

Providing the concrete is cementitious in nature (calcium leaching prone) we have University documented evidence showing one off settlement cracks up to 1.00mm occurring without actual water egress from the underside of the slab (University of New South Wales)
As this one off settlement took place, during rain periods Radcon was growing as the crack itself grew.
This is further evidenced in Earthquake zones of Taiwan, Saipan, (Newcastle Australia).
Earthquakes dislodged Radcon sealed concrete sites allowing some leakage through already present cracks.
Rainwater itself allowed repair to take place within a couple of days, so no remedial repairs were required.
In essence Radcon remains re-active in concrete repairing any future cracks or tears providing the concrete has free calcium and wetting periods for re-growth.

Radcon will produce lifetime waterproofing on all cementitious concrete mix designs.
Suitable concretes include OPC, PPC Ash free blends, Type C ash blends and  slag blends. Concrete mix designs containing silica fume should be limited to 8% cement replacement.         

AVOID pozzolanic concrete mixes. These concretes contain either Type F ash addition or Volcanic ash, leading to matrix lock up of free calcium in concrete thus impeding Radcon from sealing any new cracks which may occur in the future. Radcon cannot compete for free calcium if it simply doesn’t exist!

In Europe, Type W fly ash is rich in calcium (and therefore suitable for Radcon) whilst Type V fly ash is strong pozzolanic and should be avoided. Details of this are available in the European Norms which deal with cement and are covered in EN-197.

Crystal growths offer sulphate resistance as the active ingredients utilise dissolvable calcium to form dentridic crystals making the concrete more stable to attack but not totally resistant over the long term.
Radcon also offers greater sulphate protection by utilising free calcium to form its glass hard gel.
As neither crystal growths nor Radcon can offer total long term protection in these applications Radcon has not been tested to show its level of improved performance.

Radcon as a silicate material, creates no electrostatic attraction for airborne pollutants.The opposite can apply to sealer materials in particular siliconate based materials.

It is critical that Radcon has absorbed into the concrete through capillary action usually indicated by becoming touch dry before watering.
Should rain fall on wet Radcon it must be assumed that re-treatment will be required once the concrete has become dry once again.

Radcon when applied requires capillary suction into dry concrete prior to the application watering procedure.
Therefore Radcon cannot be applied to wet concrete be it simply damp or have water permeating through. Crystal growth materials are better suited to these applications (Radmyx).
Radcon should not be applied on any concrete surfaces where the general matrix and/or cracks present have been contaminated with water repellent materials.
Obviously if water cannot absorb in then neither can Radcon so its chemical reaction with cementitious concretes is impeded.
Radcon is generally suited to all “ABOVE GRADE” applications including all water holding vessel applications.

When Radcon has been applied to concrete, watered and allowed to dry, a trained eye will notice a slight increase in sheen given off by excess surface silicates.
Over the long term there will be no visual changes what so ever including any form of discolouration.

Be 100% sure that any repair mortars “do not” contain waterproofing admixtures such as polymers.

Radcon should absorb into the entire job including the patching material. This cannot occur if manufacturers are supplying mortars with their own water repelling materials contained therein.

Crystal growth mortars such as our Radmyx material are acceptable as they are compatible with Radcon and allow for necessary penetration after curing. This cannot occur where mortars with waterproofing additives exist in such products.

Obviously Radcon waterproofs all cementitious concretes including reinforced topping slabs.
Whilst Radcon will waterproof the actual topping, all too often water paths can remain under the topping transmitted by failed penetration detailing, wind driven rain external to the building, electrical conduits, parapet wall deck interfaces from the outer edge etc. etc.
Only treat topping slabs at your own risk, fully understanding the intrinsic problems which may be encountered post Radcon application due to other unknown problems existing under the topping.

Providing the surface is visually dry, ie no visual damp spots, Radcon may be applied. If Radcon is applied to wet concrete or concrete with damp spots, then Radcon will not be absorbed in through capillary action.

This means that any damp spots treated with Radcon would simply see the product "not absorb" and wash away during the first watering procedure.

Radcon has undergone several such tests. Probably the SINTEF Norway test showing Radcon maintaining a watertight seal under a 400 metre pressure head would be the most significant to date.
In fact it was the actual failure of the cracked Radcon treated concrete cylinder under a 400 metre pressure head which concluded the SINTEF published result.

Over the years we have actively pursued Radcon treatments to structurally volatile sites having established up front that volatility was present.
These sites are usually under engineered car parks where vehicular loading is creating movement.
For these applications Radcon is the primary concrete waterproofing material and volatile cracks are addressed utilising an elastomeric in the cracks to accommodate movement without failure.

There are only three known reasons why this could occur.
i)The concrete mix design contained Type F fly ash or volcanic ash causing matrix lock up of calcium by the Pozzolanic reaction. The wrong concrete mix was utilised.
ii)Large cracks were present and the applicator did not tape the underside of cracks during application to ensure product flooding occured inside these cracks. A superficial seal was achieved and such cracks would require underside taping and re-treatment with Radcon.
iii) The most common crack leaking occurence would be on trafficable areas where maximum loading is causing structural failure due to working cracks breaking open. In this instance rainwater will reactivate and re-seal these cracks proving product efficacy.
With this said the Radcon system will break again and these working cracks will require routing out and an elastomeric material emplaced to accomodate movement and achieve an overall watertight result.

One of great features of Radcon is that if a leak is present at the practical end of an application the matter can be easily addressed.
Unlike a membrane application where water can be tracking underneath, with a Radcon application one can go straight to the offending crack for remedial treatment.
In some instances just more water creating more Radcon growth will alleviate the situation.
Alternatively a problem may require a silicone bead seal underneath so Radcon can be flooded into such a crack then further watered to achieve a 100% watertight result.

On weathered 5 m.p.a. cementitious blockwork the Radcon application rate has been as low as 1.5 sq mtrs per litre of product.
On 50 – 60 m.p.a. concrete Radcon can cover up to 8 sq mtrs per litre.
(4 to 6 sq mtrs per litre average application).
Visually any Radcon application should see product flowing on the surface to wet the concrete.
Simply misting the surface without saturation is deemed ineffective.

Even with half empty containers providing the lid is secure from air intrusion Radcon maintains unlimited shelf life.
Product should always be mixed prior to application.
Similar in fashion to a paint, the solids in Radcon particularly the heavy silicates settling out of solution will see solids settle in the base of the drums.
Proper mixing will see these solids re-dispersed through the Radcon solution.

Getting Radcon touch dry prior to the first watering may require air blower units to speed the process.
Also be aware whilst Radcon is non-toxic any overspray in the atmosphere will deplete breathing air, therefore breathing apparatus will be essential in some enclosed applications.

he Radcon bond wrench test shows a 27% plus bond increase between cementitious materials. (Columbia University – Tensile strength test)

As Radcon is a high pH product (11.7) Radcon will prevent or deter fungal growth occurrence.
In damp shaded areas where fungus will eventually grow on Radcon treated concrete removal is extremely easy given the spores are unable to enter the concrete matrix.

Unfortunately when builders construct structurally volatile sites and they begin to leak it is the waterproofing supplier first in the firing line.
There are some very simple observations and trials which can be helpful before the University experts with their potentiometres are brought in.
For example either side of a working crack usually causes a fretting at the edges where small chips of concrete crack away.
If in doubt a simple test is to epoxy some glass microscope slides either side of the crack and monitor.
For example a car park when driven over may crack the slide demonstrating volatility.
Furthermore a building roof may be volatile moving between wet and dry weather periods.
Again this sort of activity should crack the glass indicating structural volatility.

No, Radcon is a breathing system which allows for moisture vapour outgassing whilst preventing both the ingress of water molecules and pollutants from reaching any steel reinforcement.

One can re-instate this lost calcium by dissolving “fresh” builders lime in water and applying to cracks prior to Radcon application. The lime must be sourced fresh as oxidised lime “will not” actively dissolve. Handling lime can be quite dangerous, as hot aggressive and alkali corrosive action will take place. ALTERNATIVELY – One may source calcium acetate as the food or trigger for Radcon to replace the lost lime in concrete. Calcium acetate is”food quality” acetate used in baking processes and can usually be sourced from a wholesaler of raw materials to the food industry.

Yes, Radmyx will resist both positive and negative hydrostatic pressure.   It has been tested to 5 bar of hydrostatic pressure according to European standards and meets EN 12390/8.  

Radmyx protects concrete from damage caused by most chemicals.  As a general guide chemicals that are In a PH range of about 2.0 to about 12.0 are unlikely to affect Radmyx treated concrete.  However, for details regarding specific chemicals please contact your local distributor. 

Yes, absolutely. Unlike membranes which deteriorate and create enormous amounts of landfill, Radmyx remains part of the concrete forever.  Radmyx contains no Volatile Organic Compounds (VOC’s) and is completely non-hazardous. 

Yes, Radmyx is compatible with most admixtures.  However, like all crystalline products, Radmyx Concentrate can have a plasticising effect and may cause an extension of set times. The amount of extended set will be affected by mix design, climatic conditions etc. 

Whilst Radmyx Concentrate can be used in conjunction with most admixtures, consideration should be given to the reduction or removal of admixtures that retard such as plasticisers, water reducing admixtures etc.

Whilst generally there is no adverse effect on Radmyx from common admixtures used in concrete, as there are thousands of such products around the world, a trial mix is recommended when using Radmyx Concentrate in addition to other admixtures.  

Firstly mix Radmyx concentrate with sand, cement and lime according to the datasheet   (ADD LINK) before applying it as a slurry to a concrete surface. 

Yes.  Radmyx is an excellent remedial waterproofing agent.  Radmyx’s crystalline growth will operate as a specific repair system to stop the ingress of water through most cracks and other defects to ensure a complete waterproof seal.  However, Radmyx is not suitable for waterproofing dynamic cracks or movement joints. An elastomeric joint sealant will need to be used for these conditions.  

Radmyx is traditionally used on below grade structures such as basements as well as reservoirs, tunnels, foundations, underground vaults, water tanks, sewage and water treatment tanks, car parks, swimming pools and foundations.  It is also suitable for use on pre-stressed decks. 

Radmyx, through its unique crystalline growth technology, can be used as an admixture (added at the time of concrete batching), as a coating (for new or existing structures), or as a dry shake mixture (for fresh horizontal surfaces).  

The general dosage as an admixture is 0.78kg per cubic metre of concrete.   Under special circumstances it may be necessary to vary this amount according to site conditions or design mix requirements. 

Radmyx causes an increase in compressive strength of the concrete.  CSIRO testing in Australia showed that Radmyx caused an increase in compressive strength of between 15% and 20%.   The temperature of the concrete is not affected.