40%,50% polycarboxylate-based high water-reducing concrete admixture for high performance concrete and self-consolidating concrete from suplast in guangzhou,China

Suplast® SPT-A80W Full-Effect Superplasticizer

(Water-Reducing Rate >40%)

Suplast® SPT-A80W is a high range water-reducing admixture . Its unique formulation is based on the polycarboxylate technology. SPT-A80W meets the requirements of GB8076-2008, standard of the P. R. of China.

ApplicationsSPT-A80W is recommended for high strength precast concrete products and ready-mixed concrete, whenever high plasticity, prolonged slump retention, and increased early/ ultimate strengths are required. SPT-A80W can be used for production of Self Consolidating Concrete (SCC) ，High Performance Concrete (HPC) of high flow and low ratio of water to cementitious materials, as well as for production of conventional slump concrete.

Product Properties:

l Superior dispersing ability and high-range water-reduction rate, up to 40% according to GB8076-2008.

l Generate extremely fluidity to concrete

l compatibility with all types of cements.

Benefits :

When used as a high range water reducing admixture, water reduction up to 40% can be obtained. The superplasticizing action allows for the production of high slump flowing concrete with excellent workability and prolonged slump retention that can be placed with less vibration even at a very low water/cementtitious materials ratio. The dispersing action improves cement hydration efficiency and increases early and long term compressive strengths of the concrete . Prolonged slump retention does not have negative effect on set times.

At a lower dosage, SPT-A80W can be used as a cost effective mid range water reducing admixture (about 20% water reduction) for production of conventional slump concrete and ready-mixed concrete. This application is ideal for use with lean, harsh concrete mixes or concrete containing fly ash. SPT-A80W will improve workability and finishability.

The combined water reducing and superplasticizing action provide the following benefits:

..Prolonged slump retention will extend workability and make pumping-transfer easily. .Increased slump improves workability and reduces labor costs.

..Much higher early and ultimate strengths for cost effective high strength concrete and

earlier structural use of concrete.

..Accelerated early strengths allow faster demolding and more efficient use of forms to

precast producers.

..Higher concrete density reduces permeability and increases durability.

SPT-A80W does not contain any other intentionally added chlorides and will not initiate corrosion on steel reinforcement in the concrete.

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