Effect of Low Temperatures on Strength of Concrete by Partial Replacement of Cement with Waste Paper

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IJIRST –International Journal for Innovative Research in Science & Technology| Volume 4 | Issue 1 | June 2017 ISSN (online): 2349-6010

Effect of Low Temperatures on Strength of Concrete by Partial Replacement of Cement with Waste Paper Sludge A. Gayatri Assistant Professor Department of Civil Engineering Shri Vishnu Engineering College For Women, Bhimavaram, Vishnupur, A.P, India

P. Lavanya Assistant Professor Department of Civil Engineering Shri Vishnu Engineering College For Women, Bhimavaram, Vishnupur, A.P, India

Abstract The objective of present work is to find out the effectiveness of the Hypo sludge based concrete. In this investigation it was proposed that the partial replacement of ordinary Portland cement by hypo sludge in concrete at variable temperatures. Hypo sludge is the waste material from paper industry that has some chemical properties similar to that of cement. In this investigation percentage of cement replaced partially is (5%, 10%, 15%, & 20%) with Waste paper sludge. Compressive strength of cubes and Split tensile strength of cylinders at 7days and 28 days of duration are studied. The tests are carried out to evaluate the mechanical properties like compressive strength and split tensile strength at 7days and 28 days. And parameter investigated was the time in hours to cause strength deterioration factor at 1000c, 2000c , 3000c , 4000c and 5000c temperatures. Based on the results the optimum level of replacement of waste paper sludge was found to be 10% and change in strength of partially replaced concrete at 100c and 200c is very nominal when compared to the concrete cube tested at normal temperature. Considerable change(decrease) in the Strength of Concrete at 300c, 400c and 500c is observed. Keywords: Waste Paper Sludge, Concrete _______________________________________________________________________________________________________ I.

INTRODUCTION

Concrete is a site-made material unlike other materials of construction and as such can vary to a great extent in its quality, properties and performance owing to the use of natural materials except cement. Concrete owes its unique position as the structural material to the fact, that it is economically highly to fire, wind, water and earth quakes. In the recent times its use in construction has been increased considerably. Thus, the cities and towns are virtually becoming concrete jungles. The demand is likely to increase in the future to match the growing population, housing, transportation and other amenities. Concrete can be regarded as a composite material. For reducing the cost of concrete, greater use of pozzolanic materials like fly ash, blast furnace slag, silica fume, stone dust, rice husk ash, waste paper sludge ash and waste paper sludge is suggested. Greater utilization of waste paper sludge will lead to not only saving such construction material but also assists in solving the problem of disposal of this waste product. In the present investigation waste paper sludge has been used as partial replacement of cement. II. WASTE PAPER SLUDGE Paper making generally produces a large amount of solid waste. Waste paper sludge is waste material which is produced from paper mills in large amount annually. The characteristic composition of this industrial waste is a mixture of organic material (nonrecovered cellulose) and inorganic materials (principally, kaolinite and limestone), normally used as loadings in the manufacture of paper.

Fig. 1: Waste Paper Sludge

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