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UEA-H High Performance Expansive Agent for
Concrete
UEA-H is powdered material, which made by grinding special mineral
together with additives. The fineness is less than 10%; the specific
weight is 2.90; Non-toxic, non-odour; No ammonia, no chlorine.
Features
- Low adding amount. High expansive rate
- Alkali aggregate reaction can be inhibited effectively due
to low alkali content
- No influence upon the strength of concrete. It can be substituted
by cement equivalently.
- Slump loss of concrete does not increase. Good workability.
Performance
- As preparing shrinkage compensated concrete, if the ratio
of reinforcement is 0.2~0.8%, the limited expansive rate will
be in the range of 0.02~0.04%., and a prestress of 0.2~0.7Mpa
exists in the concrete.
- Comparing with the concrete without UEA-H, in the condition
of defined mixing amount, the free strength of the concrete
with UEA-H is roughly equal to that of concrete without UEA-H.
The limited strength is 10~15% higher than free strength.
- The impermeability grade of mortar and concrete can reach
over S30 . The elastic ratio closes to that of common concrete.
- Sulphate resistance of concrete is increased. No pollution
to water.
Application
- For structural self-waterproofing construction. Effectively
preventing cracking or leakage of concrete
- To extend the space length of post casting zone of cast-in-place
overlength structure.
- To control the crack producing result of temperature difference
in largesized structural concrete
- For rigid roofing
Compatibility with other additives
UEA-H is compatible to most of additives. Such as high performance
reducer, pumping aid, accelerator; retarder , antifreeze, etc
of naphthalene series additives and resin series additives.
Technology support
We would like to offer our full technology support, which backed
by China Building Materials Academy to our customers. It is available
for our technical proposal and assistance for the design of concrete
mixing ratio in lab or in construction site.
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