What does Super P do to concrete?

When transportation times and temperatures are subject to change, contractors rely on “Super P” to extend the plasticity of concrete. This gives your concrete a longer period of workability and allows greater flexibility. It also helps you adjust the slump on the go so you get the right mix no matter the circumstance.

Does plasticizer weaken concrete?

Adding an excessive amount of plasticizer will result in excessive segregation of concrete and is not advisable. Depending on the particular chemical used, use of too much plasticizer may result in a retarding effect.

How does super plasticizer work?

Superplasticizers are used to increase the fluidity of concrete without adding excess water. These molecules physically separate the cement particles by opposing their attractive forces with steric and/or electrostatic forces, as explained in Chapter 11 (Gelardi and Flatt, 2016).

What is super concrete?

Developed in collaboration with the United States Army, the material has a compressive strength that is two to three times that of other high strength conventional concrete. It has tensile ductility of over 3 percent, says the school.

How do you use Super P?

1. Add SUPER-P Liquid Cement Additive to the appropriate volume of make-up water and mix at high shear for 2-3 minutes prior to addition of Portland Cement. 2. Next add Portland Cement to SUPER-P additive/water mixture and mix at high shear to ensure efficient wetting of cement solids.

What does 6 slump mean in concrete?

consistency
The ‘slump’ of concrete refers to the consistency of fresh concrete before it sets – the higher the slump, the more fluid the concrete is. The test is done by filling a cone with a sample of the concrete, removing the cone, and measuring how far the concrete has slumped.

What is the best plasticizer for concrete self-compacting?

Polycarboxylate ether (PCE) Superplasticizers, also known as high range water reducers, are chemicals used as concrete admixtures. SCC (self compacting concrete) is the best example for PCE.

What are the disadvantages of plasticizer?

Slump loss are greater than conventional concrete.

What is a superplasticizer in concrete?

Melamine Superplasticizer. Concrete admixtures is a liquid additive for concrete. It is sulfonated melamine formaldehyde (SMF) popularly known as melamine based super plasticizers. When water and cement are mixed, cement particles tend to agglomerate inhibiting dispersion in water.

How are mid-range water reducers enhance concrete performance?

Although mid-range water reducers, like standard water-reducing admixtures, improve concrete strength by reducing the water cement ratio and enhancing hydration, they also provide the following benefits:

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