About Fly Ash
POZZOASH Class-F Fly Ash is a pozzolan for high strength &durable concrete consisting of the ?finely divided residue that results from the combustion of ground or powdered coal? as defined by ASTM C 618. POZZOASH (Fly Ash) reacts chemically with calcium hydroxide produced by the hydration of Portland cement to form additional cementitious compounds.

POZZOASH Class-F fly ash significantly increases the ability of concrete to resist attack from sulfates in soil or water. It has been proved worldwide Class F fly ash has been highly effective inmitigating the deleterious effects of expansive alkali-silica reactions (ASR) in concrete. The concrete which contains POZOASH flyash can have equivalent or greater 28-day compressive strengths when compared to plain Portland cement concrete. Due to the pozzolanic reaction POZZOASH fly ash Concrete will continue to gain strength beyond 28 days exceeding that of ordinary Portland cement concrete.

Pozzoash Class F fly ash is used as a pozzolan in virtually any concrete application.When correctly proportioned Class F fly ash will add many benefits such as increased strength, increased durability and reduced permeability. It is also particularly beneficial in high performance concrete applications where high compressive strengths are required or severe exposure conditions requires longer durable concrete.

POZZOASH (Fly Ash) is also very effective at mitigating problems associated with alkali-silica reactions. In mass concrete placements where low heats of hydration are required class F fly ash is very advantageous in controlling temperature rise.

Limited Warranty

ZIGMA INTERNATIONAL warrants that POZZOASH fly ash meets applicable ASTM and CSA requirements. But Zigma International makes no other warranty, whether of merchantability or fitness for a particular purpose with respect to these products. Having no control over their use, Zigma International will not guarantee finished products and damages thereof if any. Because Zigma International cannot control the final use of its products, there are no warranties expressed or implied regarding a product?s use or performance in any given circumstance. Persons receiving this information should make their own tests to determine suitability for their particular use.