FAQ’s

IS IT SAFE?

The SPANSASLAB® is much safer to work on compared to the concrete rib and
block slab deck. Concrete blocks can easily crack or break, whereas
SPANSASLAB® are more durable and blocks do not easily crack or break.

AM I TAKING A RISK USING SPANSASLAB® ?

The SPANSASLAB® system has been used successfully for a range of projects in
South Africa. Qualified and experienced structural engineers are always
involved in the design and installation of the SPANSASLAB® .

CAN SPANSASLAB® SUPPORT HEAVY LOADS?

The SPANSASLAB® , just like the conventional rib and block slab, can support
heavy loads.

WHAT HAPPENS IF THERE IS A FIRE?

The SPANSASLAB® forms are made from a fire-retardant material and will self-
extinguish if the source of flame is removed. In a fire, the polystyrene will melt
leaving the concrete rib and block slab structure in place. The fumes given off
from the melting polystyrene are no more harmful than those from other
organic materials used in buildings.

IS A SPANSASLAB® CHEAPER?

Material cost – in general terms expanded polystyrene (EPS) is about half the
cost of concrete, so where EPS replaces concrete it will be cheaper. EPS
replaces the concrete blocks in rib and block systems and concrete in insitu
slabs. The SPANSASLAB® is less expensive than concrete insitu slabs.
Installation cost – The installation of the SPANSASLAB® takes approximately
half the time to install a solid insitu slab therefore the SPANSASLAB®
installation costs is significantly lower.

VS CONCRETE AND RIB BLOCK?

The SPANSASLAB® components are all manufactured from lightweight materials
and therefore require no lifting equipment. Approximately half the manpower
used to install a concrete rib and block slab can install the SPANSASLAB® .

VS CONCRETE INSITU SLABS?

The decking required for SPANSASLAB® is considerably less than that required
for solid insitu slabs. As a result, the installation of a SPANSASLAB® deck is
faster than that of insitu slabs and saves time, material and money.

VS COFFER SLAB SYSTEMS?

Coffer slabs require extensive decking to position and hold the coffers in place.
Conventional coffer void formers have to be removed and transported away
from site whereas poly blocks are left in place thereby eliminating this second
off site operation, which saves time and money.

Life cycle cost – the key benefit of the SPANSASLAB® system over other
concrete slab systems is the thermal insulation that it provides. This
significantly reduces the energy costs associated with heating and cooling of
the building. In commercial buildings and shopping centers, air conditioning
costs are significantly reduced.

WHAT IS THE SPANNING CAPABILITY OF A SPANSASLAB® ?

The SPANSASLAB® can either be simple supported or designed to span
continuously over supports. Simple supported slabs can span up to 8.5m.

HOW MUCH DOES A SPANSASLAB® COST?

Cost depends on a number of factors:
1) Size of slab,
2) Span,
3) Location of project, and
4) Complexity of design.

In order to get a SPANSASLAB® quotation, building plans should be emailed to
qs@poliespansa.co.za. The full cost of a SPANSASLAB® will include the
design, supply and installation.

WHERE CAN I SEE A SPANSASLAB® ?

​Site visits to previous or ongoing projects can be arranged for our clients.

CONTACT US

Enquiries

For any enquiries, orders or recommendations, please email: qs@poliespansa.co.za

 

Head Office

Middelburg, Mpumalanga

Western Cape Office:

Nooitgedacht

​Johan Odendaal

Director (BCom Accounting)

Cell: 082 453 4911 / 082 788 1222

Email: johan@poliespansa.co.za

SUSTAINABLE BUILDING
FOR A GREENER FUTURE