Concrete Quantity Surveying Quiz

Main Materials Used to Make Concrete

• Cement is the primary binding material in concrete, responsible for hardening and durability.
• Aggregates, including sand and gravel or crushed stone, provide bulk and strength; they typically constitute 60-75% of the mixture.
• Water activates the chemical reaction in cement, enabling it to set and cure.
• Additives or admixtures can be used to enhance the properties of concrete, such as improving workability, reducing water content, or accelerating curing time.

Primary Structures Made of Concrete

• Buildings, including commercial, residential, and industrial structures use concrete for their foundations, floors, and walls.
• Bridges utilize concrete for decking and support structures, offering durability and heavy load-bearing capability.
• Roads and pavements are constructed with concrete to handle vehicular traffic and withstand weather conditions.
• Dams, tanks, and retainer walls benefit from concrete for water containment and structural integrity.

Functions of Concrete Chairs

• Concrete chairs are used in construction to support and hold reinforcing bars in proper position during the placement of concrete.
• They ensure that rebar is adequately surrounded by concrete for effective load transfer and structural strength.
• These chairs help maintain specified concrete cover, which protects steel from corrosion and enhances longevity.

Purpose of Box Culverts Made of Concrete

• Box culverts serve as drainage structures, allowing water flow beneath roads, railways, or over other areas to prevent flooding and erosion.
• They facilitate the safe passage of wildlife or vehicles and can be used for pedestrian pathways.
• Concrete box culverts provide structural integrity and longevity, handling high loads and resisting environmental conditions.

Advantages of Ready Mix Concrete Over On-Site Mixed Concrete

• Ready mix concrete ensures uniformity in composition and quality, controlled at a central plant.
• It reduces on-site labor and material wastage, leading to potential time and cost savings.
• Ready mix concrete is delivered directly to the construction site, allowing for quicker application and reducing site clutter.
• It can be produced with special formulations tailored to specific project requirements, enhancing performance and durability.

Test your knowledge of concrete quantity surveying with this quiz. Explore the properties and uses of concrete, including beams, roads, girders, sidewalks, columns, box culverts, footings, septic tanks, walls, stairs, and chairs. Challenge yourself with questions about concrete materials, structures, and terminology.