Eco Concrete Blocks Using Marble Powder and Rice Husk Ash

Full Article Title Eco Concrete Blocks Using Marble Powder and Rice Husk Ash The following research addresses two very recurring problems related to the construction industry, i.e. increase in the amount of waste production and carbon emissions. In the construction industry, the production of cement plays a major part in CO2 emissions therefore the need to replace the use of cement in concrete remains imminent, while on the other hand, harnessing waste materials to lower its global impact stays unchecked. Therefore, in this research we aim to utilize such waste materials by using the waste marble powder and rice husk ash as the partial replacement of the cement in the concrete blocks. Eco-Blocks are revolutionizing the construction industry by offering sustainable alternatives to traditional building materials. Made from recycled materials, these innovative blocks not only help reduce waste but also deliver enhanced strength, durability, and cost-effectiveness. This research includes the making of the eco-friendly concrete blocks by replacing cement with rice husk ash (RHA) and waste marble powder (WMP) at 15% and 30%. Compressive and tensile strength tests for the concrete with a mix ratio of 1:1.5:4 and w/c ratio of 0.45 were carried out after curing at 7,14 and 28 days. In comparison with the conventional concrete the results depicted that the 15% WMP mix outperformed traditional concrete, delivering a 25% increase in compressive strength and a 34% increase in tensile strength. This increase in the durability properties of concrete enables that can be cast as the concrete blocks. The concrete block can further be used as partition and boundary wall while contributing to the reduction of the global carbon   footprint. Keywords: WMP (Waste Marble Powder);RHA (rice husk ash); Compressive Strength ;Tensile Strength; CO2 emissionArticle Type : ArticleSubject Area:  Sustainable Constrcution Materials & Green Building Practices Funding Information: none Conflict of Interest:  no conflicts of interest Ethics Approvl : nil Data Availability: The datasets generated and analyzed during the current study are available from the corresponding author on reasonable request.