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| Info-AJIRAS-® Journal ISSN 2429-5396 (Online) / Reference CIF/15/0289M |

American Journal of Innovative Research & Applied Sciences

American Journal of innovative
Research & Applied Sciences

ISSN 2429-5396 (Online)
OCLC Number: 920041286

Abstarct7-December-2023

ABSTRACT

Introduction: The main objective of this research work is to conduct a comparative study investigating the effects of admixtures on the physical and mechanical properties of concrete. In order to achieve this objective, the research utilized the Dreux Gorisse method to calculate the quantities of different components of fresh concrete for each concrete formulation described in the study. Objective: The objective of this research is to compare the influence of admixtures on the physical and mechanical properties of concrete. To achieve this, the study employed the Dreux Gorisse method to determine the component quantities for each concrete formulation. Methods: The research conducted mixing experiments in a laboratory using a concrete mixer. The quantities of various components for both admixture-free and admixture-added cases were determined based on the corresponding quantity of cement. Fresh concretes were obtained from cylindrical molds, and the slump of a portion of the fresh concretes was measured using the Abrams cone. The hardened cylindrical concretes were then demolded and immersed in water for subsequent compression tests at 7 and 28 days of age. These compression tests provided data on the characteristic resistance of each type of concrete. Additionally, detailed observations were made to gain a better understanding of the significance of the admixture as a water reducer. Results: The compression tests conducted on the hardened cylindrical concretes provided data on the characteristic resistance of each type of concrete. The results of these tests revealed significant variations in the physical and mechanical properties of concrete with and without admixtures. Through the observations made during the study, a clear understanding of the importance of admixtures as water reducers was gained. Conclusion: The comparative study on the effects of admixtures on the physical and mechanical properties of concrete yielded valuable insights. The research findings demonstrated that the inclusion of admixtures in concrete formulations had a noticeable impact on its performance. The use of admixtures as water reducers proved to be effective in enhancing the desired properties of concrete. Therefore, it is recommended to consider the inclusion of suitable admixtures in concrete mixtures to optimize their physical and mechanical characteristics. These findings contribute to advancing the knowledge and understanding of concrete technology and can be valuable for the construction industry in achieving better quality and performance of concrete structures.
Keywords: Comparative study; Concrete; Physical and mechanical properties; Admixture.