Download complete project material on Evaluation Of Suitability Of Ceramic Waste And Quarry Dust For Re Use In Concrete from chapter one to five
CHAPTER ONE
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1.0 INTRODUCTION
Researches conducted over the years has estimated that about 30% of the total production in the ceramic industry goes as waste due to improper mixing of raw materials, excess water, improper drying and too much of heating and this is not recycled. (Bakriet el 2006). Another consideration is to determine the suitability of ceramic from demolition site for reuse in concrete as possible substitute for conventional crushed gravel, coarse aggregate.
Also, the reduction in the sources of natural sand and the requirement for reduction in the cost of concrete production has resulted in the increased need to identify substitute material to sand as fine aggregate in the production of concrete. Quarry dust, a byproduct from the crushing process during quarrying activities is one of the materials been studied.
Concrete is the most utilized engineering materials for construction. It is highly durable and is the only major building material that can be delivered to the site in plastic state. These unique properties of concrete allow the distinctive shapes of structures to be built. Concrete is a composite inert material comprising of a binder cost e.g. cement, mineral filer (body) or aggregate and water (Oyenuga 2001).
Whereas, the development of rigidity of concrete made from regular aggregate can still be controlled to a certain degree, the same development is the major factor in the production of concrete from recycled aggregates.
Conventional aggregate for concrete which are categorized as fine aggregate include river sand and course aggregate which are gravel and crush stone are inert fillers in the concrete mixture consisting between 70 – 75% by volume of the whole mixture of concrete.
The quality of water used in mixing the concrete must be such that chemical reaction which takes place during the setting of the cement is not impaired. In general, portable water is suitable for concreting.
Thus, the water should be free from impurity such as suspended solids or organic matter and salt etc. which may affect the setting of the cement. Hence the present work has been planned to evaluate suitability of ceramic waste and quarry dust for re use in concrete as a possible substitute for conventional coarse and fine aggregate in concrete production.
1.1 PROBLEM STATEMENT
One of the major challenges of our global community is the safety and protection of the environment we live in; some of the paramount considerations in this respect are the conservation of energy and depletion in the consumption of natural resources and utilization of waste materials. This subject matter is gathering considerable interest under sustainable development nowadays.
The use of recycled aggregates from construction/demolition sites and industrial wastes is showing prospective application in construction as alternative to conventional/ natural aggregates, It Conserves Natural resources and reduces the space required for the garbage disposal.
Though individual opinions differ on the reasons for building collapse it is worthy of note, that since aggregate constitute about of ¾ volume in concrete, they invariably affect the compressive strength of concrete and also have a great effect on the durability and structural performance and overall strength of building.
Since there has always been this push for improving upon existing methods and principles in engineering, these new considerations could be utilized in producing concrete of different properties and class of weights, because of the nature of the constituents’ materials. For these reason, it is very important to know the variation of strength achievable in concrete produced with these materials.
1.2 PURPOSE OF THE STUDY
The main aim of the study is to establish the extent in the variation in compressive strength of concrete mixed with portable water, ceramic waste and quarry dust as substitute for conventional crush rock aggregate and river sand. The term substitute means the ceramic waste and quarry dust will take the place of conventional aggregate in one mix and conventional aggregate in another.
1.3 OBJECTIVE
Collection of samples of ceramic waste and quarry dust and analysis of the sample to determine the properties.
To access the strength of concrete cube made with the above aggregates
To access the strength of concrete cube made with conventional aggregates.
To compare the compressive strength of concrete cube made with the other aggregates, and conventional aggregates and make necessary recommendations.
1.4 THE SIGNIFICANCE OF THE STUDY
The importance of this project is to ascertain if the properties of concrete can be improved upon as well as reduce the cost of using crushed aggregates been that ceramic waste is abundant up to 30% of total ceramic industrial production. On concluding the findings, it will be ascertained whether ceramic waste and quarry dust can be used to maximize economy on project site or it can be used to produce concrete that will be able to withstand either very heavy loadings or very light loadings.
1.5 SCOPE AND LIMITATION
1.5.1 THE SCOPE
The scope of the project is to determine the variation in compressive strength of concrete mixed with portable water, ceramic waste and quarry dust and cured with portable water and use the same bases for the comparison with the compressive strength of concrete made with conventional aggregates along with its economic implications. Various tests that will also be carried out on the aggregates include;
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