In this paper, the influence of aggregate size and volume fraction on shrinkage induced micro-cracking and permeability of concrete and mortar was investigated. Nonlinear finite element analyses of model concrete and mortar specimens with regular and random aggregate arrangements were performed. The aggregate diameter was varied between 2 and 16 mm. Furthermore, a range of volume fractions betw...

The use of recycled concrete aggregate (RCA) is one the best solutions to mitigate problem ecological instability created by waste. RCA has less crushing strength, impact resistance, specific gravity, and more water absorption capacity than natural (NA). To overcome compromised properties RCA, a comprehensive study supported experimental investigation required. This paper prescribes methodology...

The feasibility of using recyclable household plastics, specifically those made of polyethylene, commonly used in water and soda bottles, as a replacement for concrete coarse aggregate, was assessed. A method was developed for cutting polyethylene materials into fibrous strips. These strips were then used as a replacement for the rock coarse aggregate in batches of concrete. Standard 6” x 12” t...

9 In this paper, the influence of aggregate size and volume fraction on shrinkage induced micro-cracking and 10 permeability of concrete and mortar was investigated. Nonlinear finite element analyses of model concrete 11 and mortar specimens with regular and random aggregate arrangements were performed. The aggregate 12 diameter was varied between 2 and 16 mm. Furthermore, a range of volume fra...