Influence of Fly Ash, Bottom Ash, and Light Expanded Clay Aggregate on Concrete

S Sivakumar,B Kameshwari

doi:10.1155/2015/849274

Abstract

Invention of new methods in strengthening concrete is under work for decades. Developing countries like India use the extensive reinforced construction works materials such as fly ash and bottom ash and other ingredients in RCC construction. In the construction industry, major attention has been devoted to the use of fly ash and bottom ash as cement and fine aggregate replacements. In addition, light expanded clay aggregate has been introduced instead of coarse aggregate to make concrete have light weight. This paper presents the results of a real-time work carried out to form light weight concrete made with fly ash, bottom ash, and light expanded clay aggregate as mineral admixtures. Experimental investigation on concrete mix M20is done by replacement of cement with fly ash, fine aggregate with bottom ash, and coarse aggregate with light expanded clay aggregate at the rates of 5%, 10%, 15%, 20%, 25%, 30%, and 35% in each mix and their compressive strength and split tensile strength of concrete were discussed for 7, 28, and 56 days and flexural strength has been discussed for 7, 28, and 56 days depending on the optimum dosage of replacement in compressive strength and split tensile strength of concrete.

Highlights

High performance concrete indicates an exceptional form of concrete endowed with astonishing proficiency and strength essentials which are unequipped with periodical assessment on a regular basis by way of traditional materials and standard mixing, placing, and curing techniques [1]
Experimental investigation on concrete mix M20 is done by replacement of cement with fly ash, fine aggregate with bottom ash, and coarse aggregate with light expanded clay aggregate (LECA) at the rates of 5%, 10%, 15%, 20%, 25%, 30%, and 35%, respectively
Their compressive strength and split tensile strength of concrete have been discussed for 7 days, 28 days, 56 days and flexural strength of beam has been discussed for 7, 28, and 56 days depending on the optimum dosage of replacement in compressive strength and split tensile strength of concrete

Summary

Introduction

High performance concrete indicates an exceptional form of concrete endowed with astonishing proficiency and strength essentials which are unequipped with periodical assessment on a regular basis by way of traditional materials and standard mixing, placing, and curing techniques [1]. A few grades of ordinary Portland cement (OPC) are accessible tailor made to suit the particular nation code categorization. In this respect, Bureau of Indian Standard (BIS) exquisitely does the capacity of categorizing three separate grades of OPC, for example, 33, 43, and 53, which have chronically been widely utilized in construction industry [3]. The fly ash is home to the crystalline and amorphous components together with unburnt carbon It grasps differing measures of unburnt carbon, which is prone to reach the tune of 17% [6]. Fly ash is regularly alluded to as pond ash and over the long haul the water is permitted to drain away. The effect of fly ash substance and substitution of trampled sand

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Discussion

Conclusion