Material Processes: Wood
This presentation explores the crucial role of wood in Agricultural and
Biosystems Engineering. We will delve into its material properties,
primary and secondary processing methods, and diverse applications.
Prepared by: Remate, Ricaplaza, & Nequin
Introduction to Wood
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Wood is a naturally occurring, renewable biological
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Offers a balance of strength, workability, and cost-
material derived from trees.
effectiveness relevant to ABE.
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Historically significant in agriculture for construction
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Sustainable material when sourced responsibly,
and tools.
aligning with modern ABE principles.
Material Properties of Wood
Strength
Density
High strength-to-weight ratio, suitable for structural
Varies by species, influencing strength and weight
applications.
considerations.
Durability
Workability
Natural resistance to decay varies; can be enhanced
Easily shaped, cut, and joined using various techniques.
with treatments.
Thermal Insulation
Sustainability
Provides good insulation properties for agricultural
Renewable resource when managed through
buildings.
sustainable forestry practices.
Primary Wood Processing
Harvesting
Sawmilling
Drying (Seasoning)
Grading
Selective logging or clear-
Logs are sawn into lumber
Reduces moisture content
Lumber is sorted based on
cutting, crucial for
of various dimensions
to improve strength and
quality, strength, and
sustainable forestry.
(beams, planks, boards).
stability. Includes air drying
appearance.
and kiln drying.
Secondary Wood Processing
Transforms primary processed wood into finished products:
Shaping
Finishing
Nailing, Screwing, Bolting: Mechanical
Creating surfaces and profiles via Planing,
Enhancing durability & appearance with
fasteners.
Milling, Turning.
Paints, Stains, Varnishes, Preservatives.
Joining
Adhesives (Gluing): Strong, seamless joints.
Joinery: Interlocking joints.
Applications in ABE - Structures
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Farm Buildings: Barns, sheds,
storage facilities, and processing
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Greenhouses: Frames and structural
components for plant cultivation.
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Animal Housing: Stables, poultry
houses, and shelters for livestock.
plants.
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Fencing: Posts and rails for perimeter and livestock control.
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Bridges and Walkways: Rural infrastructure for farms and
agricultural areas.
Applications in ABE - Equipment & Tools
Tool Handles
Crates and Pallets
Animal Handling Equipment
Traditional Farm Implements
Shovels, hoes, rakes, and other hand
For transporting and storing
Gates, chutes, and pens for livestock
Plows, carts, and wagons (in some
tools benefit from wood's shock
agricultural produce.
management.
contexts).
absorption and grip.
Components in Machinery
Wooden parts in older or specialized
agricultural machinery
Advantages of Using Wood
Cost-Effective
Renewable Resource
Generally less expensive than steel or
concrete in many regions.
Carbon Sequestration
Sustainable if sourced from well-
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Easy to Work With
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Wood stores carbon, contributing
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to climate change mitigation.
Aesthetic Appeal
Natural beauty and warmth, creating
pleasant agricultural environments.
managed forests.
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Simple construction techniques
and readily available tools.
Versatile
Adaptable to various structural and
equipment needs.
Disadvantages and Challenges
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Susceptibility to Decay
Vulnerable to rot, fungi, and insect infestation if untreated.
Fire Risk
Combustible material requiring fire safety considerations.
Moisture Sensitivity
Can warp, swell, or shrink with changes in humidity.
Maintenance Needs
Requires periodic treatments (preservatives, paints) to prolong lifespan.
Strength Limitations
May not be suitable for extremely heavy loads or large spans compared to steel.
Conclusion & Future of Wood in ABE
Wood remains a valuable and relevant material in Agricultural and Biosystems Engineering. Its renewability and workability make it a practical choice for
many applications.
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Engineered Wood Products (EWP)
Plywood, CLT, Glulam offer enhanced strength and stability.
Advanced Wood Preservatives
Eco-friendly treatments for increased durability.
Sustainable Forestry Practices
Ensuring long-term wood availability for ABE.
Integration with Modern ABE Technologies
Using wood in innovative agricultural systems.
Wood, when processed and applied thoughtfully, will continue to play a significant role in sustainable and efficient Agricultural and Biosystems
Engineering.