Abstract
Recycling of construction and demolition waste and recycling of industrial by-products into building materials has an enormous potential. Brick waste can be treated by reusing for construction. Recently, the utilization of pozzolanic materials in cement and concrete have increased considerably due to their diverse benefits such as lesser use of cement , saving in production costs, improvement in the durability of concrete and so on. Ground bricks was added to concrete mix as partial replacement of cement at (5, 10, 15) % by weight. It was evaluated as a pozzolanic material in conjunction with high range water reducing admixture superplasticizer (HRWR)-The study confirmed that the use of 10 % of ground brick improved compressive, flexure strength of concrete by about (23.3%) and (5.92%) respectively at 240 days as compared to reference concrete and decreased the depth of water penetration under pressure by about 43.75% at 150 days, also the water absorption decreased by about 2.52%. The uses of 10% of grinding brick in conjunction with high range water reducing admixture reduced corrosion of steel reinforcement by about 18%.
Highlights
Preservation of the environment and conservation of rapidly diminishing natural resources should be the essence of sustainable development
The environmental issues associated with greenhouse gas (GHG), in addition to natural resources issues, will play a leading role in the sustainable development of the cement and concrete industry during this century [3]
[7] The aim of this study focuses on the feasibility of using bricks of locally available construction waste for establishing economically-friendly and affordable green environment through evaluating its pozzolanic activity and checking the suitability as partial replacement of cement to produce high performance concrete
Summary
Preservation of the environment and conservation of rapidly diminishing natural resources should be the essence of sustainable development. Brick waste is not the major amount of waste in construction, but it contributes largely in demolition activities These waste materials are directly dumped into the environment and it causes environmental pollution as well as scarcity of landfill .waste utilization has become an alternative solution to overcome the problem for disposal of waste instead of minimizing the brick waste produced, it can increase the strength and performance of concrete production. The production of one ton of Portland cement produces about one ton of CO2 and other GHGs. The environmental issues associated with GHGs, in addition to natural resources issues, will play a leading role in the sustainable development of the cement and concrete industry during this century [3]. There has been an interest in determining the permeability of pozzolanic material – concrete compared with conventional concrete [7] The aim of this study focuses on the feasibility of using bricks of locally available construction waste for establishing economically-friendly and affordable green environment through evaluating its pozzolanic activity and checking the suitability as partial replacement of cement to produce high performance concrete
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