Settlement Analysis of Soil Replaced with Fine Aggregate of Recycled Concrete as Foundation Material

Crushed Concrete is one of the most prevalent waste products generated by the construction sector (CC). This material is frequently recycled and used for a variety of applications, such as pavement, concrete aggregates, and backfilling. The goal of this research is to see if Crushed Concrete-Fine Aggregate (CC-FA) mixed soils may be used as a foundation material. In Secunderabad, recycled concrete is collected from demolished structures and graded. pH, specific gravity, water absorption, and particle size distribution are all index features of CC-FA. The compaction and shear strength parameters of locally accessible soil are determined after it is partially replaced with CC-FA, i.e. 30 percent, 50 percent, and 70 percent. A numerical analysis is carried out as part of the study utilising finite element software, GeoStudio Sigma/w. The model is subjected to mesh and boundary extent convergence tests. The top 1 m of virgin soil is replaced with a CC-FA and soil mixture. For uniform stress of 200kPa, settlements for various percentages of CC-FA and varying widths of square footing are produced. The tension is applied in five steps to imitate real-world conditions. For all footing widths investigated in this study, 30 percent replacement of CC-FA resulted in the least amount of settling.

Author(S) Details

A. Raj Kumar
Civil Engineering Department, CMR College of Engineering and Technology, Hyderabad, India.

J. Y. V. Shiva Bhushan
Civil Engineering Department, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, India.

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