Concrete Super Plasticiser: 1 Litre Water reducing Flowaid SCC superplasticizer

Product Information

SNF superplasticizer, also called naphthalene based superplasticizer, is the most widely used concrete superplasticizer in construction industry.

We always rovide high-quality products, competitive prices and good services for all the customers. Retarding admixtures, which slow the setting rate of concrete, are used to counteract the accelerating effect of hot weather on concrete setting. … Retarders keep concrete workable during placement and delay the initial set of concrete. Most retarders also function as water reducers and may entrain some air in concrete. Is admixture a code?

Does superplasticizer increase slump?

When working with concrete in hotter climates the introduction of a retarding admixture can help to offset these affects by slowing the curing rate and helping the mix to retain both its strength and elastic properties.

Chemical and Engineering News, 2002, 80(20), 45; http://pubs.acs.org/cen/whatstuff/stuff/8020stuff.html If you have ever mixed up a batch of concrete, plaster or any other similar mixture you will be well aware that if you are repeating mixes it’s essential that each mix is exactly the same as the last to ensure complete consistency across the job. Dosed at 3oz (liquid) per 100lbs cement (@ .75 ounces per 25lbs cement) would be around 170 batches per 1-gal (850 batches per 5-gal)In days past, washing up liquid was typically used to create the same affect, however it has now been proven that using washing up liquid can actually reduce the strength of a concrete mix so don’t be tempted to use this method!

Plasticizers are commonly manufactured from lignosulfonates, a by-product from the paper industry. Superplasticizers have generally been manufactured from sulfonated naphthalene condensate or sulfonated melamine formaldehyde, although newer products based on polycarboxylic ethers are now available. Traditional lignosulfonate-based plasticisers, naphthalene and melamine sulfonate-based superplasticisers disperse the flocculated cement particles through a mechanism of electrostatic repulsion (see colloid). In normal plasticisers, the active substances are adsorbed on to the cement particles, giving them a negative charge, which leads to repulsion between particles. Lignin, naphthalene, and melamine sulfonate superplasticisers are organic polymers. The long molecules wrap themselves around the cement particles, giving them a highly negative charge so that they repel each other. In most situations, a shrinkage admixture is added to a mix at the first stage of mixing with the main goal of helping to prevent both sort term and long term shrinkage. In essence, shrinkage can occur as a mix cures, as the moisture content of the mix reduces and also elements of the mixture settle, shrinkage can occur. When it comes to how much of a given additive, admixture or dye you should add to a given mortar mix, this is a bit of a “how long is a piece of string” type question. Lignosulphonic acid plasticizers may cause air entrainment in concrete mi, which reduces strength. Sometimes, air detraining agents are also needed to be used.According to their dispersing functionality and action mode, one distinguishes two classes of superplasticizers: Some decent examples of concrete admixtures or additives are accelerators, retarders, colourers, waterproofers, frost proofers just to mention a few. Superplasticizers (SPs) are also known as high- range water reducers that are additive used in making high strength concrete. Plasticizers are chemical compounds that enable the production of concrete with approximately 15% less water content. Superplasticizers allow a 30% or more reduction in water content.

What is the limitation of plasticizers? Explanation: A good plasticizer is one which does not cause air-entrainment in concrete is greater than 1-2%. 5. Are plasticizers harmful? Plasticizers are chemical compounds that enable the production of concrete with approximately 15% less water content. Superplasticizers allow reduction in water content by 30% or more. These additives are employed at the level of a few weight percent. Plasticizers and superplasticizers retard the curing of concrete. Does plasticizer weaken concrete? Additives, or admixtures should on the whole only be used when a given situation requires them but there are some that can be used to enhance a general concrete mix. As the name suggests corrosion inhibitors essentially prevent the rusting and corrosion of reinforcing steel that is found in reinforced concrete.Here we will learn about Superplasticizer, types of superplasticizers, advantages & disadvantages of superplasticizer. Introduction to superplasticizer: Lignosulphonic acids in the form of calcium or sodium salt are used widely. It is derived from the wood processing industry and is a natural product. These products entail adsorption in cement particles without affecting the cement hydration process. Almost 90% of polymer plasticizers, most commonly phthalate esters, are used in PVC, giving this material improved flexibility and durability. [1] Other polymers which can contain high loadings of plasticizers include acrylates and cellulose-type plastics, such as cellulose acetate, nitrocellulose and cellulose acetate butyrate. Read More: What are the properties and functions of proteins? What is the limitation of plasticizers?