PRODUCTION OF CRACK-FILLING MIXTURE USING CHITOSAN MATERIAL

This project involves the laboratory-scale production of ultra-fine chitosan powder from crab and lobster shell waste and its formulation into a biodegradable crack-filling mixture for repairing walls and concrete structures. It applies a practical, waste-to-wealth approach that addresses infrastructure gaps, environmental sustainability, and youth empowerment. Using 40 kg of seafood shell waste, the project is expected to produce 10 kg of high-grade chitosan powder—an eco-friendly bio-polymer known for its strong adhesive, film-forming, and moisture-resistant properties—then blend it with natural fillers to create a low-cost crack repair material suitable for Nigerian construction needs.

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PRODUCTION OF CRACK-FILLING MIXTURE USING CHITOSAN MATERIAL

Project Overview


  • STRATEGIC RATIONALE:


Structural cracks are widespread in Nigerian homes, schools, and public infrastructure, particularly in low-income areas where repair products are unaffordable. Meanwhile, seafood shell waste contributes to environmental pollution.


This project integrates both challenges into one solution by converting locally available shell waste into a functional construction material, reinforcing Nigeria’s circular-economy agenda and demonstrating the practical use of biotechnology for community development.



  • KEY OBJECTIVES:



  1. To produce 10 kg of ultra-fine chitosan powder (≤50 μm) from 40 kg of shell waste.

  2. To formulate and field-test a biodegradable crack filler suitable for walls, pavements, and concrete.



  • To train 20 youths and technicians in chitosan extraction and construction-material formulation.



  1. To demonstrate a replicable model for sustainable building-maintenance solutions.

Project Information

Status
Completed
Commencement Date
January 19, 2026
Posted On
January 26, 2026

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