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A/L Technology Stream · Sri Lanka

Engineering
Technology

Free notes, past papers, diagrams and revision guides aligned with the Sri Lanka A/L Engineering Technology syllabus — covering engineering drawing, mechanisms, electrical systems, manufacturing, measurements, standards and entrepreneurship.

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Lesson 04
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ගොඩනැගිලි තාක්ෂණවේදය —
Building Technology

A/L Engineering Technology Lesson 04 syllabus ආවරණය කරයි — ගොඩනැගිලි ද්‍රව්‍ය, foundation වර්ග, masonry, concrete mix design, reinforced concrete, roofing, plastering, flooring සහ ශ්‍රී ලංකා ගොඩනැගිලි රෙගුලාසි ඇතුළු ප්‍රධාන කරුණු ආදිය.

🧱 Building Materials
🏠 Foundation Types
🪨 Masonry & Brickwork
🏗️ Concrete Mix Design
⚙️ Reinforced Concrete
🏛️ Roofing Types
🖌️ Plastering & Flooring
🚪 Doors & Windows
📐 Building Drawings
⚖️ Building Regulations LK
🪵 Timber Construction
🔩 Steel Structures
📥 Lesson 04 — Available Downloads
📄
Full Notes — Building Technology
PDF · 6.5 MB · 92 pages
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Unit 1 — හැඳින්වීම හා සැලසුම් චිත්‍ර
Unit 2 — තාක්ෂණවේදය
Unit 3 — නිෂ්පාදන හා ප්‍රමිති
Unit 4 — යාන්ත්‍රික හා ජල ඉංජිනේරු
Unit 5 — ඇස්තමේන්තු හා ව්‍යවසාය
❓ නිතර අසන ප්‍රශ්න — FAQ
A/L Engineering Technology Lesson 04 — ගොඩනැගිලි තාක්ෂණවේදය හි ප්‍රධාන මාතෘකා මොනවාද?

Lesson 04 'ගොඩනැගිලි තාක්ෂණවේදය' (Building Technology) හි ප්‍රධාන මාතෘකා:

  • 🧱 Building Materials — Brick, Concrete, Steel, Timber properties & uses
  • 🏠 Foundation Types — Strip, Pad, Raft, Pile foundations
  • 🪨 Masonry & Brickwork — bond types, mortar mix
  • 🏗️ Concrete Mix Design — M15 (1:2:4), M20 (1:1.5:3), M25 (1:1:2)
  • ⚙️ Reinforced Concrete Construction — formwork, curing
  • 🏛️ Roofing Types, Plastering, Flooring, Doors & Windows
  • ⚖️ Sri Lanka Building Regulations & Building Drawings
ශ්‍රී ලංකාවේ ගොඩනැගිලි ඉදිකිරීම්වල භාවිතා වන ප්‍රධාන Building Materials මොනවාද?

ශ්‍රී ලංකාවේ ගොඩනැගිලි ඉදිකිරීම්වල ප්‍රධාන Building Materials:

  • 🧱 ගඩොල් (Brick) — Class A (7 MPa), Class B; clay fired bricks
  • 🏗️ Concrete — Cement + Aggregate + Water; M15/M20/M25 grades
  • 🔩 Steel — Fe250 (Mild Steel), Fe415, Fe500 (HYSD bars)
  • 🪵 Timber — structural, formwork, doors/windows
  • 🏜️ Sand & Gravel — fine & coarse aggregates
  • 🏭 Cement (OPC) — Ordinary Portland Cement, binding agent
Engineering Technology Lesson 04 Building Technology notes PDF නොමිලේ download කරන්නේ කොහෙන්ද?

AL Tech Hub (altechhub.lk) හි Lesson 04 Downloads කොටසෙන් නොමිලේ ලබාගත හැකිය:

  • 📄 Full Notes PDF — 6.5 MB, 92 pages
  • 📄 Building Materials Guide — 2.5 MB, 26 pages
  • 📄 Foundation Types Illustrated — 3.2 MB, 30 pages
  • 📄 Concrete Mix Design Notes — 1.8 MB, 18 pages
  • 📐 Construction Drawings Reference — 4.0 MB, 34 pages
  • 📊 Slide Deck (PPTX) — 8.0 MB, 50 slides
  • 📝 Practice Q&A (DOCX), Past Papers, 🗜️ Complete Bundle (ZIP 28 MB)
ගොඩනැගිල්ලක Foundation (පදනම) වර්ග මොනවාද? කුමන Foundation කවදාද යෙදිය යුතුද?

Shallow Foundations (නොගැඹුරු පදනම්):

  • Strip Foundation — load-bearing walls; good bearing soil
  • Pad/Isolated Foundation — individual columns
  • Raft/Mat Foundation — දුර්වල soil; සම්පූර්ණ ගොඩනැගිල්ල ආවරණය

Deep Foundations (ගැඹුරු පදනම්):

  • Pile Foundation — very soft/weak soil, heavy structures
  • Well Foundation — bridges, large structures

Foundation තේරීම: soil bearing capacity + building load + site conditions මත රඳා පවතී

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