Eprca interlocking block

Construction waste is expected to increase in step with the projected 50% increase in global egg production and consumption by 2035. This growth is mainly due to the impact of increasing construction activity caused by faster urbanisation and population growth. In addition, poor strategic planning and management of projects often leads to mistakes such as poor execution, excessive ordering of materials and incorrect storage, which increases the amount of waste. This increased output of waste leads to environmental problems that coincide with simultaneous economic expansion, limited landfill capacity and strict waste disposal laws. The main objective of this study is to evaluate the flexural strength of Interlocking blocks (IB) under three-point loading containing 30% recycled concrete aggregate (RCA) instead of sand and eggshell powder (ESP) instead of cement. Pozzolanic materials, 10% silica fume and admixtures and 1% superplasticiser (Sika ViscoCrete-2192) are added to the combination. Compression tests were carried out to determine the ideal percentage of eggshell powder (5%, 10% and 15%). The strengths were determined after a curing time of 7, 14 and 28 days. The result shows that the addition of 30% recycled concrete aggregate and 5% eggshell powder to the blocks increases their compressive and flexural strength. The use of ESP and RCA at 5% and 30% respectively to replace cement and fine aggregate therefore has a major impact on improving the critical performance of IBS.