Plasticizer admixture FLY ASH

for concrete

Overview
Tarmac Fly Ash is quality-assured fly ash suitable for use in combination with Portland Cement and Portland Limestone Cement to enhance concrete durability. It conforms to BS EN 450-1:2005 — Fineness Category N, Loss on Ignition (LOI) Category B.
Tarmac Fly Ash is classified as a Type II addition per BS 8500 and may be used in mixer combinations with Portland Cement and Portland Limestone Cement. The fresh properties and long-term performance of concrete containing Tarmac Fly Ash depend on the proportion of fly ash used and the overall mix design.
Tarmac Fly Ash is available in bulk tankers across Great Britain.

Benefits

• Improves long-term concrete durability and resistance
• Reduces risk of early-age thermal cracking in large pours
• Enhances pumpability for pumped concrete
• Reduces heat of hydration
• Lowers water demand in mixes
• Minimises risk of alkali–silica reaction (ASR) with reactive aggregates
• Improves workability retention and reduces bleeding

Applications

• Use as a cement replacement/addition in concrete mixes to enhance durability
• Suitable for pumped concrete and large pours to reduce cracking risk
• Applicable where reduced heat of hydration, lower water demand or improved long-term resistance is required
• Widely used in civil engineering and construction projects involving Portland Cement or Portland Limestone Cement combinations

Documents (titles available for download)

• Fly Ash Material Safety Data Sheet
• Fly Ash Safety Data Sheet
• Fly Ash Data Sheet

Technical specifications

• Standards: Conforms to BS EN 450-1:2005
• Fineness Category: N
• Loss on Ignition (LOI) Category: B
• Classification: Type II addition for concrete (per BS 8500)
• Compatibility: For use with Portland Cement and Portland Limestone Cement
• Availability: Supplied in bulk (bulk tankers) across Great Britain