International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 08 | Aug 2023
p-ISSN: 2395-0072
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TO STUDY THE EFFECT OF ACCELERATED CURING ON THE STRENGTH OF THE CONCRETE INCORPORATING PARTIAL FLY ASH Maksood Ali1, Saurabh Gupta2 1M.tech Student, Department of Civil Engineering, Arni University 2 Assistant Professor, Department of Civil Engineering, Arni University
---------------------------------------------------------------------***--------------------------------------------------------------------Abstract – The way concrete is prepared and its quality is always an important factor for the assessment of the strength of
the structure. The type of curing used in this study is normal water curing and accelerated curing by boiling water method. The project of civil engineering is highly influenced by the time constraint because it is directly concerned with the economy aspect of the project. The time consumed during the process of curing can be expedited by increasing the temperature of water used for curing and that directly influences the rate of hydration. This paper explain the behavior of M30 grade of concrete which is cured at normal as well as accelerated with the partial replacement of fly ash with the weight of the cement. The mix prepared is as per IS 10262: 2009. The types of sample that were prepared were nominal mix and binary mix that incorporated fly ash with varying percentage i.e.25%, 30% and 35%. After performing various tests over the sample as 3 sample for each variation is prepared and whose average has been tabulated and compared. The result obtained was after the comparison of the concrete prepared using normal and accelerated curing.
Keywords- Accelerated Curing, Boiling Water, Rate of Hydration, Mix Design, Binary Mix, Fly Ash 1. INTRODUCTION In the present scenario concrete is the most widely used substance for the development of any city on the planet. As we are more depending on the concrete it has become the most commonly used man-made material on earth. It has proved itself as an important construction materials used extensively in building, bridges, roads and dams. Its uses range from structural applications such as high rise building, kerbed, pipes as well as drain. Over the period of time, as technology improvement in every sector so was of the concrete as we have now develop pre stress and post tensioned stress concrete which have different depending upon the load to be carried by them over. There has been delay in the application as we have to wait for more than 1 year to let concrete attain his 99% of the strength which is not feasible for any project so to tackle such problem this paper represent the effect of accelerated curing over the concrete.
2. MATERIAL The materials used in this work are broadly classified as base material, filler material, binders and admixtures. Both inert and reactive materials are used for this study. The various materials used in this work are discussed with their properties and with the test results as follows. 2.1 Cement: Ordinary Portland Cement of 53 grade was used in this study which was provided by Ultratech Cements Ltd. 2.2 Aggregates: There are two types of aggregate being used for the experiment: Fine aggregate and course aggregate. The Fine aggregates used in this research are taken from nearby river tributary of Beas having max size of 4.75mm. Coarse aggregates used are of crushed stone from the nearby crusher such that the stone passing through 20mm IS sieve and retained on 4.75mm IS sieve. 2.3 Fly Ash: It was obtained from thermal power station, dried and used. Class F fly ash is designated in ASTM C 618 and originates from anthracite and bituminous coals. It consists mainly of alumina and silica and has a higher loss of ignition (LOI) than Class C fly ash. The class F fly ash was used in this study, the chemical composition of Class F fly ash (ASTM C618) is given in Table
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