The Potential of Recycled Ceramic Waste as Coarse Aggregates for Concrete

1 Abstract — The potential of recycled ceramic waste as a substitute for coarse aggregates in concrete has been investigated. Three types of ceramic waste, namely tiles, clay brick and flowerpot were used. Concrete mixes with a 28 days characteristic strength of 20 MPa were prepared using water / cement ratio of 0.4, 0.5 and 0.7. The strength development of the concrete mixes containing recycled ceramic waste aggregates was compared to that of conventional concrete. The result show that the concrete mixes containing recycled ceramic waste aggregates achieve strength levels between 80 to 95 % compared to the conventional concrete. This indicates that the recycled ceramic waste has a potentially to be used as coarse aggregates for concrete Keywords : Recycled ceramic waste; Coarse aggregate, Compressive strength; Water-Cement ratio I. I NTRODUCTI ON HIS research will focused on ceramic wastes obtained from the industry in Malaysia. Presently in ceramic industry the production goes as waste, which is not under going the recycle process yet. It has been estimated that about 30% of the daily production in the ceramic industry goes as waste. In this study an attempt has been made to find the suitability of the industrial ceramic wastes as a possible substitution for conventional crushed stone coarse aggregate [1]. A review on earlier research shows that industrial wastes as well as other wastes were used in concrete- making to improve the properties of concrete and to reduce cost. A. Mohd Mustafa Al Bakri is with the Materials Engineering Department, Universiti Malaysia Perlis (email:[email protected] ) M.N Norazian is with the.Environmental Engineering Department, Universiti Malaysia Perlis (email: [email protected] ) G. Che Mohd Ruzaidi is a de an of Material Engineering Department, Universiti Malaysia Perlis (email: [email protected] ) H. Kamarudin is with the Materials Engineering Department, Universiti Malaysia Perlis (email: [email protected] ) Inclusion of recycled tire rubber fibres in concrete was found to avoid the opening of cracks and increase energy absorption [2]. Structural light weight concrete has been produced using oil palm shells [3] and demolished masonry waste [4] as aggregates in concrete. An improvement in the modulus of elasticity of concrete was observed with partial replacement of crushed stone coarse aggregate by crushed vitri-fied soil aggregate [5-6]. The principal target of the experimental of program is to determine the contribution of the waste aggregate type to the improvement of the strength behavior of the confined concrete. The experimental program comprises the study of the behaviors of fresh and hardened concrete with ceramic waste coarse aggregate and compares the respective properties with conven tional concrete. Experiments will carry out to determine the developments strength of concrete with ceramic waste as coarse aggregate and compare them with the conventional concrete properties. The development of concrete properties will be observed by substitution of crushed stone as coarse aggregate with crushed wastes ceramic. Compressive strength was unchanged when ceramic wastes are used partially to replace conventional concrete. The ceramic waste as coarse aggregate had several enhancing effect compared to conventional concrete including improving its compressive strength. II. MATERIALS Ceramic waste as coarse aggregate The ceramic wastes such as flowerpot, tiles and brick ware were broken into small pieces about 5 – 40 mm sizes by a hammer. These small pieces are then fed into vibrator sieved to get the required 14 – 20 mm size. Figure 1 show the sample of ceramic waste coarse aggregate. Figure 1: Ceramic waste coarse aggregate. The Potential Of Recycled Ceramic Waste As Coarse Aggregates For Concrete A. Mohd Mustafa Al Bakri, M.N. Norazian, H. Kamarudin, & G. Che Mohd Ruzaidi T Proceedings of MUCET2008 Malaysian Universities Conferences on Engineering and Technology March 8-10, 2008, Putra Brasmana, Perlis, Malaysia MUCET2008

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The Potential of Recycled Ceramic Waste as Coarse Aggregates for Concrete