Communities face plastic pollution while builders need durable and affordable paving materials with dependable quality.
PRACTICAL PROJECT · Intermediate practical project
RePlast Interlock Lab
Turn carefully sorted plastic waste into tested paving products.
◷ 3–5 weeks✎ 5 stages
A safely manufactured sample interlock, material recipe, compression-test report and construction-market business case.
Estates, schools, local councils, landscapers, recyclers and building-material merchants.
THE BUILD JOURNEY
01Every stage ends with evidence.
Discover · 3 days
02Investigate users and quantify the problem
Prove the local problem, customer and cost of inaction.
Design · 3 days
03Design the solution and business model
Create a safe product specification and a distinctive commercial offer.
Build · 5 days
04Source and build the prototype
Produce a functional supervised prototype with traceable materials.
Test · 4 days
05Test, improve and validate
Use repeatable tests and real-user feedback to prove performance.
Sell · 3 days
Cost, package and make the first offer
Turn the tested prototype into a credible product or service customers can buy.
LIVE COSTING LAB
Will the idea make money?
Adjust labour and profit assumptions. These September 2026 planning figures are illustrative; obtain current Nigerian supplier quotations before buying.
sorted compatible plastics₦36,733
washed sand₦38,937
temperature-controlled processor₦41,141
steel mould₦43,345
PPE₦45,549
compression testing access₦47,753
Materials per prototype₦253,458
Suggested selling price per unit₦380,1871 unit: ₦380,187 projected revenue · update prices with supplier quotations