International Journal of Research and Scientific Innovation (IJRSI) | Volume VIII, Issue I, January 2021 | ISSN 2321–2705

Structural Performance of Broken Ceramic Tiles As Partial Replacement of Coarse Aggregates In Concrete

 Adeniran Jolaade Adeala and Lawrence Ademola Omisande
Civil Engineering Department, Federal Polytechnic Ilaro Ogun State, Nigeria.

Abstract
In an attempt to curb the menace associated with the collection and disposal of construction wastes, the study investigated the characteristics of broken ceramic tiles concrete graded levels : 0%,5%,10%, 15% and 20% of broken tiles wastes with maximum size of 19mm generated from construction sites used to substitute conventional coarse aggregate in the production of 1:2:4 mix concrete, at constant water-cement ratio of 0.5 cast in sets of sixteen (16) each in 150mm x 150mm x 150mm moulds. The resulting concrete cubes cured for 28 days were tested for absorption, compressive strength and workability in accordance with BSEN 12350-3: 1983 and BS8110: 1997. The result showed that the compressive strength values: 28.25N/mm2, 27.44N/mm2 ,26.88N/mm2 and 26.33N/mm2 at 5%, 10%, 15% and 20% respectively although decreases with increase in percentage replacement is comparable with that of a normal concrete up to 20% replacement. Workability and absorption properties of the broken tiles concrete also exhibited the same trend with that of compressive strength. The study concluded that BTC at 28 days possesses strikingly similar characteristics with normal concrete up to 20% replacement.

Keywords: Broken Ceramic Tiles, Workability, Compressive Strength, Water Absorption.

1. Introduction

Concrete is a building and structural material obtained by mixing cement, aggregates (fine & coarse), water, and admixture (if necessary)[1]. Concrete is used more than any other man made material on this planet. It is a low cost material and can be used for the construction of any type of structure. Aggregates which are one of the materials used in making concrete are chemically inert solid particles of selected sizes, held together by the hardened cement paste, which acts as the binder to aggregates. Aggregates that can be natural gravel, crushed rock or an artificially prepared heavy or light weight material, are available in various shapes, sizes and qualities that may range from fine sand to large, coarse rocky materials. Because cement remains the most expensive ingredient in making a concrete, it is desirable to minimize the quantity of cement and maximize the quantity of aggregate used in concrete production. In a normal concrete, 75 to 85% of the volume of concrete is aggregate that makes the cost of concrete relatively low. The choice of aggregate is determined by the proposed use and importance of structure, environmental conditions to which the structure will be exposed and the availability of aggregate within an economical distance. Owing to liberalization, globalization and privatization, the construction of important infrastructure projects like, buildings, roads, airports etc. in Nigeria is increasing year after year. Such developmental activities consume large quantity of precious natural resources. This leads to faster depletion of natural resources on one side and manifold increase in the cost of construction of structures on the other side pose severe problem for the construction sector. This problem is very severe in Nigeria.

Read More