Recent Papers

In recent years, much attention has been paid to the use of superplasticizer as a chemical admixture in cement concrete mixtures. However, the use of chemical admixtures in cement concrete is a very common method for producing high-performance concrete. Previous researchers have emphasized that the use of chemical admixtures imparts desirable properties to cement concrete in both the fresh and hardened states.This thesis work attempts to investigate the effect of superplasticizer doses of 0.5, 1, and 1.5 percent on the performance of cement concrete. By using superplasticizer, we can reduce the water demand of the concrete mix. In this study, a superplasticizer called Sulphonated Naphthalene Formaldehyde (SNF) is utilised in varying amounts in the concrete mix. Specifically, the dosage of SNF superplasticizer typically varies between 0.5% and 3% by weight of cement. The manufacturer's instructions and the particular requirements of the mix determine the precise dosage. Using superplasticizer improves the strength of the concrete while also lowering the amount of water used. Superplasticizer use contributes to environmental preservation by saving the water. Finding the proportion of superplasticizer that can be added to the concrete mix in order to reach the desired mean strength is the primary goal of this study. The findings of the experimental tests conducted on the fresh and hardened properties of concrete for the M25 grade are analysed and contrasted with those of regular concrete. The focus of this current research project is on using superplasticizer to lower the mix's water requirement. A number of experiments were conducted to find the slump value, compressive strength, and flexural strength with and without the superplasticizer addition. The findings indicate that adding more superplasticizer to the cement concrete mixture increases not only slump but also gains good ability. Furthermore, compared to regular concrete, there is a minor increase in both the flexural and compressive strengths.One crucial quality of cement concrete is its strength. In order to compare the results of previous studies on the compressive strength and flexural strength of cement concrete with those obtained from laboratory experiments on samples of cement concrete cube casted for this purpose, this thesis examined the relationships between aggregate size, quantity of admixture, compaction, water-cement ratio, and aggregate-cement ratio. In order to promote and expand the use of new generation products, such as concrete created with superplasticizer, in the civil engineering construction business, it is crucial to conduct research into the characteristics of both fresh and hardened concrete. The characteristics of both fresh and hardened concrete produced with varying amounts of superplasticizer added to the concrete mix are examined in this study.

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