Usage of Demolished Bricks In The Sub Base Layer of Pavement

Abstract: This report explores the feasibility and benefits of utilizing demolished bricks in the sub base of pavement construction i.e. it has been conducted in order to determine the suitableness of aggregates of demolished bricks which is considered of not any use in any construction work that brick only we are going to use in the sub base of the pavement. In this study the demolished concrete aggregate (DCA) and soil is used in granular sub-base (GSB) of the pavement. This research is based on the partial replacement or as an alternative of natural aggregates with the demolished concrete aggregate (DCA) and stone dust with brick dust in the sub-base usage. Also compared the results of conventional granular sub-base (GSB) mix and aggregate replaced with demolished concrete aggregate (DCA) and stone dust with brick dust using the laboratory experiments. In simple language it’s the study of GSB vs. DCA. The utilization of demolished bricks and aggregates in the sub base layer of pavement has emerged as a sustainable solution in the construction industry. In this study some experiments were carried out to find out the properties at different proportion of demolished concrete aggregate (DCA) and brick dust mixed with natural aggregate. All needed experiments were performed the workshop’s lab with the team members. Based on the test results, it is found that demolished concrete aggregate and brick dust can be used as an alternative material in partial replacement of natural aggregate and stone dust respectively in granular sub-base (GSB) mix. However, the report also highlights possible challenges such as the need for appropriate bricks or to give any construction work a hard ground surface, so for all those application we use the same by laying it on ground in a form of a layer. The objectives of the research are outlined, including the evaluation of performance characteristics such as load-bearing capacity, stability, and durability of the sub base layer constructed with demolished materials.
Key Words: Granular sub-base, Demolished concrete aggregate, Pavement construction, Recycled material, Brick dust.