expansive agent

Product Description

UEA is an inorganic product in powder form to be used in addition to the other components of concrete for producing shrinkage compensating and high strength concrete. It is a special clinker, burnt at high temperature, rich in free lime and whose minor compounds are calcium silicates, aluminates, ferro-aluminates and sulphates. The use of superplasticisers is particularly recommended when using UEA as they significantly reduce the water content and thus the potential shrinkage of the concrete to be compensated.

Recommended For

Hydraulic Works

Tanks

Reservoirs and swimming-pools

Water treatment plants

Wharves and structures subject to sea-water attacks

Jetties and blocks for sea works

Containers for liquids and/or gases

Pre-stressed circular structures

Sewers, tunnels and canals

Injections for sealing of concrete elements

Reinforced & Pre-stressed Concrete Structures

Long structures

Thin solid structures

Pre-stressed concrete beams

Annular beams for sports facilities

Floors for cold storage warehouses

Bridge decks

Filling of cavities

Industrial floors

Floor for sports centre (skating-rinks, tennis courts, sport tracks, etc)

Weakly reinforced hyperstatic structures

Boats in reinforced concrete

Shields for nuclear plants

Road and railway tunnel vaults

Underwater and underground structure

Foundations and underpinnings

Hyperstatic arc-bridges

Box culverts, domes and thin structures in reinforced concrete

Roofs and covers in architectural concrete

Prefabrications

Repairs of vertical structures and loaded pillar

Additional members to sustain existing structures

Rock consolidation

Product Advantage

UEA reduces the drying shrinkage of concrete by reducing the capillary tension of the pore water in concrete. Reductions in drying shrinkage of up to 50% have been obtained. The benefits derived from the reduction in drying shrinkage include:

Dramatic reduction in crack occurrence

caused by drying shrinkage

Increased joint spacing in concrete pavements and slab-on-ground

Improved concrete durability

Longer service life

High impermeability and strength, anti-crack and freeze-thaw resistance concrete

Addition Rates

The suggested dosage rate of UEA is 10 to 40 kg/m3 of concrete. It must be added together with the cement and aggregates and then water and other admixtures.

Packaging

UEA is available in 20kg bags.

Storage

Store the product in a dry and sheltered place. Do not use the product if bag is damaged.