Zeolite in the production of cement, concrete, foam and aerated concrete.
Back in the 70's the majority of mined in Western Europezeolites were used as building stone, insulating materials of low density and in the process of the production of pozzolatic cement. Zeolites are particularly well suited for the production of hydraulic cements, chemical resistant for exposure, for example such as sea water. As a piece of stone the zeolites have been used in Turkey. In this area, however, competing, and perhaps the most competitive materials are directly volcanic tuff.
Researches have shown that natural zeolites can be used in nuclear power engineering because they are resistant to nuclear degradation, and are cheaper than organic ion exchange resins. Zeolites quickly react with the cement and glass, which allows you to create more robust concrete storages for radioactive materials. Considerable researches in this area were conducted in the last 15-20 years in countries such as USA, USSR, Canada, Bulgaria, France, Germany, Britain, Japan.
For the production of high-strength concrete a mixture of cement and additives, containing 60% of clinoptilolite and mordenite (at a ratio of 19:1 - 6:1) is used. This allows us to obtain concrete with greater resistance to compression than the Portland cement.
Experiments have shown that zeolites can be successfully used in the manufacture of cement slurry during the equipment of oil and gas wells. However, economically, the use or non-use of zeolites in the above mentioned areas depends on the competition of local raw materials in the field of production or on economic efficiency of transporting a particular product.
Since ancient times, natural zeolites have been used in construction, mainly as a piece of stone.