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With the state of the art weiler
GmbH plant design and pro-
duction equipment supplied
by weiler to Grupo Perse, the Mexican
plant is now producing dry-mix hol-
low core pre-stressed slabs and pan-
els in cycles as low as six hours, at a
direct cost per m² 28% below that of
wet-mix slip-formed slabs also being
produced on site.
Along with lower production costs
and a profitable production solution,
theweiler dry-mix extruded slabs and
panels have compressive strengths
70% higher (75 MPa versus 44 MPa)
than similar wet-cast products, re-
sulting in lighter and stronger floor
and wall elements, capable of higher
loads and longer spans.
Perse, Mexico’s fastest growing
precaster serving the industrial and
commercial building market, with
full precast production and erection
capability, has set ambitious goals for
continued expansion. With projects
in various regions of Mexico and op-
portunities to expand internationally,
Perse is relying on advanced precast
solutions offered by weiler to realise
their objectives. Commissioned in
late 2013, a new factory hall construc-
tion using weiler drawings began in
2014, equipment arrived four months
later. By 2014 the new hall was com-
plete, with all equipment installed
and running. Fully operational since
January 2015, the factory is meeting
expectations for low cost, high vol-
ume precast production.
In 2013, faced with an existing slip
former factory with limited produc-
tion capacity, Perse met with repre-
sentatives of weiler, Gau-Algesheim,
todiscuss advancedprecast solutions
for a new production hall. The main
limitations of the existing slip plant
were low production capacity and
high costs per m² of flooring and
walls.
Production cycle times were over
30 hours total, including four hours
to cast each bed and up to 24 hours
curing, with slow concrete delivery
and labour intensive processes. The
need for admixtures and high cement
content in the concrete mix contrib-
uted to higher material costs for the
wet-mix products.
weiler engineers presented nu-
merous solutions to address pro-
duction and cost issues. Beside the
machinery for the production of
the concrete parts, the order also
included a batching andmixing plant
connected to a concrete distribution
In order to meet the
need for high volume,
low cost precast
production of flooring
and walls, Grupo Perse
(Mexico) is increasing
production with a new
weiler extruder factory
capable of 1680 m² of
hollow core pre-stressed
slabs and panels per
day, using only four
production beds.
Cement & Concrete
November 2015
Precast