PLASTICIZERS PRODUCTS IN BANGLADESH
Plasticizers are used to increase the plasticity of polymer materials such as PVC and as a water reducer in concrete mixtures. Our plasticizers enable you to reduce the water requirement of your concrete and/or improve its consistency.
The Action of Plasticizer in Concrete:
Plasticizers make things more flexible because they have polymer molecules inside of them. When these molecules are added to concrete, they stick to the outside of the grains and make ionic groups that radiate outward. The crystals of cement would soon get a negative charge because of this. Cement particles that have a negative charge push against each other. The particles in the water and cement system push against each other, which breaks up the flocs of particles.
In addition to the fact that cement grains naturally don’t like each other, a sheath of aligned water molecules will circle each particle and keep them from getting too close. Because of this, the concrete paste is smoother and easier to work with than ever before.
Materials Used as Plasticizers:
i) Polyglycerol esters are made from hydroxylated carboxylic acids and their derivatives and changes.
ii) Lingo sulfates and their derived products and modifications are salts of sulphonates of hydrocarbons.
iii) Carbohydrates: Plasticizers are used in amounts that range from 0.1% to 0.4% by weight of cement. At the same level of workability, adding 0.1 to 0.4% of a plasticizer can reduce the amount of mixing water by 5 to 15%, naturally makings the material stronger. At the same water-to-cement ratio, the workability increase can be anywhere from 30 to 150 mm, depending on the concrete’s initial slump, the cement type, the amount of cement, and the amount of plasticizer.
A good plasticizer makes concrete or mortar flow in a way that is different from how an air-entraining agent does it. But some plasticizers also add air to the material, making it easier to work. A good plasticizer should add 1% to 2% of the air to concrete at most because adding air to concrete makes it less strong.
Centrament N BV
Plasticizer / Water reducing agent