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Investigating natural rubber latex (NRL) composites through compressive testing for renewable and sustainable building materials This article explores the innovative use of natural rubber latex (NRL) as a fundamental component in the development of sustainable and renewable composite building materials, particularly focusing on incorporating wood chips as reinforcing particles. The study investigates the compressive mechanical properties of various composite formulations, analysing the influence of NRL contents and particle types – considering different wood species, shapes and sizes. Key factors such as particle geometry, NRL content, and sample preparation methods are identified as crucial factors in enhancing the mechanical properties of these composites. The results show that NRL composites exhibit distinctive characteristics like non‐linear behaviour, hysteresis, stress relaxation, and the Mullins effect during compression tests. The significance of these composite materials in construction is heightened by their potential to utilize NRL sourced from plants other than rubber trees, such as dandelions, thus advancing sustainable construction practices. This research aims to focus attention on exploring new, flexible, and highly customized composite materials by utilizing natural fibres and NRL across a range of construction applications. [ABSTRACT FROM AUTHOR]