Planning of Concrete Paving Block K-400 with Plastic Additivies

Abstract

The accumulation of non-biodegradable plastic waste presents a significant environmental challenge. This research explores the innovative use of these materials as plastic additives in the production of Concrete Paving Blocks. The primary objective is the planning (mix design) of a paving block that meets the K-400 compressive strength standard (equivalent to approximately 33.2 MPa). This study utilizes an experimental laboratory method. Several concrete mix designs were formulated, incorporating varying percentages of processed waste plastic (e.g., shredded PET or LDPE) as a partial substitute for fine aggregate. The key parameters evaluated for each mix variation were compressive strength (tested at 28 days), water absorption, and density. The results demonstrate that it is feasible to incorporate plastic additives up to a certain threshold percentage while still achieving the target K-400 strength. The analysis identifies an optimal mix proportion that balances structural integrity with the environmental benefit of waste utilization. This study concludes that plastic additives can be a viable component in paving block production, offering a sustainable solution for plastic waste management and creating value-added construction materials.