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Understanding Mortar Composition

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What happens here

Mortar is the adhesive that binds concrete blocks together. The video demonstrates the difference between mortar and concrete by washing samples. Mortar is primarily sand, while concrete contains larger aggregates (gravel). This visual comparison explains why mortar is used for thin-layer bonding between blocks. Proper mixing of mortar is critical for its performance.

Goal: Understand the composition of mortar and its difference from concrete.

Tools and materials

  • Trowel — Handling mortar and concrete samples
  • Bucket — Holding water for washing
  • Concrete — Comparing with mortar
  • Green Tray — Surface for washing samples
  • Mortar — Comparing with concrete
  • Water — Separating components of mortar and concrete