Abstract
This study was undertaken to reduce the usage of cement in concrete where different proportions of tile powder as cement replacement were used. Since in the manufacture of cement an exuberant amount of carbon dioxide is disposed of in the environment, this research aims to curtail the dependence on cement and its production. The objective of this work is to investigate the properties of fresh mix concrete (workability) and hardened concrete (compressive and splitting tensile strength) in concrete with different proportions of 0%, 10%, 20%, 30%, and 40% of tile powder as a cement substitute. In this study, a total of 90 concrete samples were cast with mix proportions of 1:1.5:3, 0.5 water-cement ratio, cured for 7, 14 and 28 days. For determining the compressive strength, cubical samples, with dimensions of 100mm×100mm×100mm, were cast, while for the determination of the splitting tensile strength, cylindrical samples with dimensions of 200mm diameter and 100mm height, were tested after 7, 14, and 28 days. The highest compressive strength of concrete achieved for tile powder concrete was 7.50% at 10% replacement after 28days of curing. The splitting tensile strength got to 10.2% when concrete was replaced with 10% of tile powder and cured for 28 days. It was also shown that with increasing percentage of the tile powder content, the workability of the fresh concrete increases.
Highlights
Concrete is the most commonly used building material in the world
The aim of this experimental work was to check the properties of fresh concrete and the mechanical properties of hardened concrete such as compressive and splitting tensile strength with tile powder utilized as partial cement replacement material, with various percentages, in order to quantify the influences of tile powder in concrete and to know its impact on the mechanical properties of concrete
The concrete cube samples were used for compressive strength tests and the cylindrical samples were used for splitting tensile strength tests under the British Standard (BS) code
Summary
Concrete is the most commonly used building material in the world. It consists of two parts: paste and filler. Aggregates are moderately inert filler constituents which occupy 70% to 80% of the volume of concrete, it is expected to have effects on its properties [1]. For every ton of cement produced about one ton of carbon dioxide is released into the atmosphere. Cement industry production corresponds to about 5% of global anthropogenic emissions of carbon dioxide. Cement production is related to dust, and noise [2, 3]. Ordinary Portland cement (OPC), is related to several diseases [9,10,11]
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