When it comes to designing high-density concrete mixes, air content is always top of mind. If the mix contains too many air pockets, it won’t function as well as it needs to. This could be very problematic as these types of mixes are often used to create barriers in radiation areas of hospitals, or walls around nuclear power plants. For these mixes, the lower the air, the better the concrete. Unfortunately, keeping air low can be a challenge. Temperature, mixing time, and even certain admixtures can all cause fluctuations in the air content. That’s why Fritz-Pak developed our air-detraining admixture, Air Minus. This product is easily added to your truck at the job site, so you can be sure the mix you deliver has the air it needs – or doesn’t need.
In Fritz-Pak’s Air Minus, the chemical structure of the air-detraining admixture lowers the water tension in the mix. This prevents the formation of bubbles and releases air already trapped in the mix. When using this admixture, patience is very important. Air Minus takes time to work its way through the mix, which is why once you have mixed it into the truck, you need to let the load rest for at least five minutes before performing an air test.
Air Minus comes packaged in our signature water-soluble bags for easy addition to your truck. This powerful air-detraining admixture increases the unit weight of concrete while improving the compressive strength. Plus, it can be used to maintain the densities of grouts and slurries as well as keep fly-ash from entraining too much air in the mix. Finally, adding Air Minus to your concrete reduces the entrained air caused by the modern chemistry in superplasticizers.
For additional information or technical support regarding our air-detraining admixture, give us a call at (214) 221-9494. Don’t forget to follow our social media pages for more information about how our products can improve your concrete.
|95996||1.1 lb. (500 g.) water soluble bag||24||42|
|95997||50 lb. (22.7 kg.) paper bag||40|
Air-Minus is compatible with most admixtures. Adding salt, surfactants, superplasticizers, air entrainers or latex to the mix can cause increased foaming or reduce the effectiveness of Air-Minus. When used with other admixtures, each admixture must be dispensed separately into the mix.