Flay Ash
Explanation:
The issue of steel corrosion in concrete is one of the major problems in many countries around the world, and it is one of the main causes of structural changes and deterioration of concrete. One of the solutions to improve the quality of concrete and prevent corrosion is to use fly ash instead of cement in concrete production. This will reduce the chloride ion penetration rate in concrete and prevent concrete corrosion. Fly ash, a byproduct of coal-fired power plants, can be used as a pozzolanic material or as a component of Portland cement or as a mineral additive in concrete. In commercial production, fly ash is limited to 20-15% of the total cementitious materials. This amount of fly ash has beneficial effects on the economy, efficiency, and cost of concrete, and is necessary to increase durability against sulfate attacks, silica expansion, and thermal cracking.
Applications of fly ash powder:
concreting in the presence of glare and wind or solar radiation
Dry areas
Concrete structures exposed to severe cycles of melting and
Freezing
To partially compensate the damages caused by the delay allowed in
Perform initial curing
To minimize the risk of cracking
sealing structures that are likely to have cracks
Reduction of cracks caused by cement hydration
Concrete structures exposed to cavitation
Concrete construction of water structures
Docks
Bridges
Parking lots
Water channels and dams
Construction of concrete structures on seashores and areas that need to reduce the penetration depth of chlorine ions and sulfate in batons.
Better durability against sulfate and acidic water damages and achieving high ultimate strengths (generally producing concrete with very high compressive strength).
Technical points for concrete made with fly ash:
The ideal consumption of fly ash is 17% of the weight of cement, which, when combined as described, results in exceptional concrete. Besides providing durability and significantly reducing permeability and cracks due to hydration, unlike microsilica, it does not increase water demand for cement.
For concrete mixes with specific 28-day compressive strengths, it is excellent. In addition to providing durability and significantly reducing permeability and cracks due to hydration, unlike microsilica, it does not increase water demand for cement.
For concrete mixes with specific 28-day compressive strengths of 30 MPa or more, with a slump of 150 mm and a water-to-cement ratio of 0.3, the use of a super plasticizer is not required."
Technical specifications of fly ash powder:
- Special particle surface: /g
- Particle size: 0.30-0.12 micron
- Packaging of fly ash powder:
- 25 kg bags
- In bulk with a fleece cover in a bunker
Storage of fly ash powder:
- Minimum storage period of one year.
- Keep away from direct sunlight and avoid freezing in temperatures between 5 degrees Celsius and 35 degrees Celsius.
Environmental issues:
- Do not dispose of excess amounts in water or soil.
- Safe for transportation.
Safety:
The product does not contain any hazardous materials. For more information, please refer to the product's safety guide.
Technical Approval:
All products offered by the Iranian Technical and Specialized Concrete Clinic are in compliance with international quality standards.