Abstract:
During the studies undertaken for the preparation of superplasticizer namely (1) Melamine / formaldehyde / sulphonate; (2) Melamine / Sugar / formaldehyde / sulphonate; (3) Napthalene Sulphonate / formaldehyde and their effect on the properties of cement and concrete. Laboratory-scale preparation of superplasticizers in dry powder form and supplementing the zinc sulphate and turkey red oil for purpose of further enhancing the strength of the concrete was also investigated.
Polymers such as acrylics, polyvinylidene / vinyl chloride co-polymer, polyvinyl alchohal and acetate, and methyl cellulose were investigated for their effect on the properties of cement and concrete.
Plasticizers based on stabilized sodium rosinate in combination with sodium sulphate, urea and sugar and those based on sulphate waste liquor by itself or in combination with urea and sodium sulphate were also studied; individual additives were also investigated for their influence on the properties of cement and concrete.
Effect of replacing part cement by alkaline earth sulphates were investigated for improvement in the sulphate-resistant-properties of the concrete.
Effect of the method and intensity of mixing concrete ingredients highlighted its importance for increasing the strength of the concrete.
