EFFECT OF SUPER-PLASTICIZER BS FUTURA PCX 107 ON PPC CEMENT FOR M20 GRADE OF CONCRETE
Keywords:
Superplasticizer, Concrete, Characteristic Strength, Mix-Design and Frequency Distribution.Abstract
M20 Grade of concrete is the minimum grade of concrete which can be used in structural members as per IS456:2000 and it is the most widely used grade of concrete in the construction field. Plasticizers and Superplasticizers are also used in the concrete to enhance the different properties of concrete and increase the workability. BS FUTURA PCX 107 a Sodium Naphthalene Formaldehyde, Melamine or Lignosulphate based technology superplasticizer as per EN 206-1 is readily available in the local region for this purpose and it is also widely used in the construction industry in a nearby area.
This study was conducted to quantify the advantages of the above super-plasticizer on the characteristic strength and the standard deviation of M20 grade concrete strength for the Mix designed proportion with a slump of 25-50mm. The study was performed on 40 of cubes out of which 20 were formed with super-plasticizer and 20 were formed without super-plasticizer. After 28 days, hardened concrete cubes were tested on the Compression testing machine (CTM) and then the cube-strength were analysed. The analysis confirms that the effect of super-plasticizer was as desired.
