Category: Structure & materials
Prepared by Eng. Ahmed Fathy, Projects Manager ·
Definition
Precast concrete is reinforced or prestressed elements made in a factory under controlled conditions, such as hollow-core slabs, beams, walls and fence panels, then transported, lifted into place and connected on site.
Why it matters on a project
It shortens construction, improves quality and cuts site labour, so it is growing in housing projects and warehouses. But it needs early design of connections, transport and lifting.
Measurement and pricing
Per square metre, unit or cubic metre depending on the element, including manufacture, transport and erection, with connections and grouting separate or included.
Common mistake
Changing openings or sizes after elements are cast, forcing cutting on site or remanufacture.
Frequently asked questions
Is precast cheaper?
It saves time and labour and pays off when elements repeat in large numbers, less so for small varied buildings.
What matters most in design?
Connections between elements and how they are lifted and transported, settled before fabrication.
Related terms
- Lifting planA written plan to lift heavy loads safely with cranes.
- Reinforced concreteConcrete containing steel reinforcement to resist the tensile forces concrete alone cannot carry.
- Shop drawingsDrawings prepared by the contractor or fabricator showing how items are made and installed, approved by the consultant before execution.
- Hollow-block (ribbed) slabA slab with concrete ribs between hollow blocks to reduce weight and increase spans.
Read next
Does your project need structural design and reinforcement drawings? Send the drawings or a short description and we reply within one working day.
Service detailsRequest a quote