concrete construction management Flashcards
What is the traditional method of using concrete for construction?
Using readymade or batched concrete on site
This involves preparing concrete on-site or using pre-mixed concrete delivered to the location.
What is slip form in concrete construction?
A process of nonstop building that requires the formwork to keep moving
Slip form construction uses hydraulic jacks to elevate formwork and platforms as the building rises.
What are the benefits of slip form construction?
Strong, complete structure, fast
Slip form construction allows for continuous pouring of concrete, leading to fewer joints.
What are the disadvantages of slip form construction?
Set up, constant site presence, cost effective on large buildings only
It requires significant initial setup and ongoing presence at the site.
What is the lift slab construction technique?
A method where reinforced concrete slabs are cast around columns at ground level
This technique allows for fast and economical construction of multi-storey buildings.
What are the benefits of lift slab construction?
Strong, fast, no framework required
It simplifies the construction process by eliminating the need for traditional formwork.
What are the disadvantages of lift slab construction?
Set up, number of equipment needed, only cost effective when in large buildings
Requires specific equipment and setup that may not be feasible for smaller projects.
What materials can be used in a portal frame construction?
Steel work, laminated timber, reinforced concrete
Portal frames can be constructed from various materials, offering flexibility in design.
What are the benefits of portal frame construction?
Very cheap to put up, made in a factory, large span, speed, ease to recycle, lighter so smaller foundations, sustainable
Portal frames are cost-effective and environmentally friendly due to their recyclability.
What are the disadvantages of portal frame construction?
Protection against corrosion and fire, expensive parts
Special treatments may be necessary to prevent damage from environmental factors.
What are the characteristics of laminated timber?
Used in gymnasiums, waterproof, connected with metal bolts, glue joint stronger than timber itself
Laminated timber is lightweight and provides good insulation.
What is modular construction?
Construction for grid buildings made from timber, steel channels, composite materials, precast concrete
This method emphasizes efficiency and minimal waste.
What are the benefits of modular construction?
Little waste material, faster method, less space required on site, better quality finishes, environmentally friendly
Modular construction is often completed in a factory setting, allowing for better quality control.
What are the disadvantages of modular construction?
Box type construction, possible issues with resale value, cannot install when there are high winds
Certain weather conditions can hinder installation, and the design may limit market appeal.
What is Glulam?
The gluing of timber together
Glulam is used to create strong structural components by bonding layers of wood.
What is the role of Fenestra in construction?
Firms that comply with building regulations
Fenestra companies ensure that their products meet safety and legal standards.
What does hydration refer to in concrete?
When concrete fails modules of elasticity in relationship between stress strain
Hydration is a critical chemical reaction in concrete curing that affects its strength.
What is Viboflotation in concrete construction?
Gives smooth finishes to the concrete
This technique involves vibrating the concrete to eliminate air pockets and improve surface quality.
What is an Afropop in construction?
Big metal pole used for holding trench up for around a week
Afropops provide temporary support during excavation and construction activities.
What is a key advantage of precast concrete?
Tolerance is measured in millimeters
Precast concrete’s factory production allows for precise measurements and quality control.
