CONSTRUCTION & BUILDING

Natural Zeolite is a pozzolanic material. Pozzolanic materials are classified as one of the main constituents of cement according to European Standard EN 197-1.

“Pozzolanic materials do not harden when mixed with water, but when finely ground and in the presence of water, they react at normal ambient temperature with dissolved calcium hydroxide (Ca(OH)2) to form strength-developing calcium silicate and calcium aluminate compounds. These compounds are similar to those which are formed in the hardening of hydraulic materials. Pozzolanas consist essentially of reactive silicon dioxide (SiO2) and aluminum oxide (Al2O3). The remainder contains iron oxide (Fe2O3) and other oxides. The proportion of reactive calcium oxide for hardening is negligible. The reactive silicon dioxide content shall be not less than 25% by mass.”

Zeolite’s pozzolanic properties and high silicon dioxide content increases the performance of cement. Zeolite acts as a stabilizer, increasing viscosity, enabling better handling and stability. It reduces the alkali – silica reaction.

Zeolite strengthens the hardness of concrete in the long term. It prevents crack formation. It is a substitute for ordinary Portland cement for the production of sulphate resistant Portland cement. It is a natural anti-corrosion agent. Apart from sulphate and corrosion resistance, Zeolite also decreases the chromium level in cement and concrete. It improves chemical resistance in salt water applications and resists underwater corrosion.

By using Zeolite, the cement addition can be decreased without losing the strength. It helps lower the production cost and reduce the CO2 emissions during production.

Ecological dyes, coatings and adhesives are becoming more popular everyday. Natural Zeolite is one of the most popular additives for these ecological products. The addition of Zeolite provides environment friendly products which offer healthier and safer environments.

Thanks to its high cation exchange capacity, Zeolite – Clinoptilolite easily eliminates bad odors and increases the air quality in the environment. Zeolite has a high affinity for smelly gases.

Zeolite can absorb many unpleasant gases, odors and smells like:

• Cigarette,
• Frying oil,
• Rotten food,
• Ammonia,
• Sewer gasses,

Zeolite is a hydrated alumino-silicate. It has a high porous structure. It can easily hydrate and dehydrate, is stable at high temperatures and has several advantages on warm mixed asphalt.

Some benefits of Zeolite on Warm Mixed Asphalts

• The addition of Zeolite decrease the temperature need for asphalt paving.
• Asphalts mixed with Zeolite show desirable higher stability and higher strength at lower temperatures.
• Saves energy by reducing the temperature needed during production.
• Reduces CO2 emission during production.
• Eleminates odors, vapors and aerosols.
• Makes asphalt application easier.