Effects of Superplasticizer on the Properties of Fresh and Hardened Concrete Mixes

This research aims to study the effect of superplasticizer, when mixed with local materials, on both fresh and hardened concrete properties achieve demands engineers contractors. The methodology adopted objectives focuses mainly a collection data from different sources, an extensive review previous studies, designing mixes implementing lot laboratory experiments using ratios superplasticizer low water contents. added were 0.0 (as reference mix), 0.4, 0.8, 1.2 1.5 Litre/ 50Kg cement for ages 3, 7 28 days by preparing 12 cubes each sample. Local ordinary Portland (OPC) graded natural coarse fine aggregate used all conducted in this research. From experimental results obtained it has been found that ratio (0.8 litres per 50 kg cement) superplasticizers reduction 15% (w/c) showed clear significant improving workability mixes. Also 1.5L 30% (w/c(and 0.4L 10% )w/c) have resulted high workability. Whereas, values absorption no changes respected SP or w/c shown substantial improvement after use achieving lowest possible water/cement while maintaining