BUILDING SYSTEMS

PRESTRESSED
HOLLOW-CORE SLAB SYSTEM

HALLOWCORE SLAB SYSTEMS
Method of Manufacturing
A hollowcore slab is a precast, prestressed concrete member
with continuous voids provided to reduce weight and, therefore,
cost and, as a side benefit, to use for concealed electrical or
mechanical runs. Primarily use as floor or roof deck systems,
hollowcore slabs also have applications as wall panels, spandrel
members and bridge deck units.
An understanding of the methods used to manufacture
hollowcore slabs will aid in the special considerations sometimes
required in the use of hollowcore slabs. Hollowcore slabs are cast
using various methods in the seven major systems available
today. Because each production system is patented, producers
are usually set up on a franchise or license basis using the
background, knowledge and expertise provided with the machine
development. Each producer then has the technical support of a
large network of associated producers.

Special Applications to suit requirements & strength of units.

OTHER BUILDING SYSTEMS

EPC building systems comprises an extensive range of complimentary precast
concrete products which have been developed and established over several
years. They are based on technically proven, high quality cost effective building
systems used extensively in the construction industry throughout.
All EPC building systems products are designed, manufactured and erected to
meet current local, international, Saudi Aramco and Saudi Electricity Company
material standard specifications. They can also be designed and standardized
to interface with client designs and site requirements to provide a quality
precast building systems with maximum speed and flexibility to meet most
applications.
The numerous structural products and system include the following:
1. Building frames cladding structures suitable for industrial units, schools,
housing and commercial building
2. Carpark multi storey structures and cladding
3. Housing systems
4. Carpark shed frames and claddings
5. Mosque and minaret structures and features
6. Boundary wall system
7. Prestressed hollowcore slab and wall product
8. Precast Column and beam frame
All EPC products are designed, manufactured and erected to meet with clients,
architects, and engineers functional loading and dimensional requirements and
to EPC quality assurance and prevailing international and local Saudi Aramco
standards and Saudi Electricity Company material standard specifications.
EPC are always available for consultation on all technical matters, project
feasibility and proposals from clients, consultants and contractors.

INDUSTRIAL FRAMING, CLADDING &
STRUCTURAL SYSTEM

Precast column-beam frames and cladding with floor and roof components can be used in a
variety of single and multi storey buildings for industrial, warehousing, commercial,
recreational and institutional applications. Durable, fire resistant and quickly erected, these
structures can be framed in long clear or short spans and provides maximum flexibility for
interior space planning. Provisions for such special features as roof openings and suspended
superimposed loads are readily engineered into the design.

LIST OF TYPICAL PRECAST FRAME / SLABS / CLADDING ELEMENTS
1. External insulated Load Bearing Wall Panel
2. External Core Load Bearing Wall Panel (w/ or w/o finish)
3. Internal HC Load Bearing Wall Panel
4. Internal Solid Load Bearing Wall Panel
5. Internal Non-Load Bearing Wall Panel
6. Hollowcore Floor / Roof Slab
7. Precast Parapet
8. Balcony Slab
9. CIP Raft Foundation
10. CIP Strip Foundation
Sandwich, Solid and Core Wall Systems provide a flexible and rapid Architectural and Preengineered
Housing System. It provides economical high quality solution to the housing
needs of the Middle East Countries.

PRES-STRESSED DOUBLE TEE SLAB
Double Tees mostly floor deck and roof deck components for any type of
structures.
 Flange thickness 75mm
 Typical Width 2.4 m
 Typical Depths 500m, 600m, 710m, 800m, 900m, 1000m, 1075m
 Typical span-to-depth ratios: Floor or Roof 11m to 25m
Manufacturing Method:
Casted in 2 – 150 m long pre-stressing beds that are subdivided into specific
length tees as required by the project. Production consist of:
 Laying out forms
 Stressing the strands
 Installing embedded materials and reinforcement
 Pre-pour Quality Check
 Casting proper
 Curing
 Detensioning or releasing of strands
 Stripping
 Post-pour Quality Check
 Stocking and wet curing