DURA® ULTRA-HIGH PERFORMANCE
'ductile' CONCRETE (UHPdC) Features :
1) Aesthetic
Due to the absence of coarse aggregate, improved homogeneity and
granular packing distribution of the concrete matrix, products made from
Dura® are able to achieve outstanding finished when compared to
conventional concrete. Dura® is able to offer elegance solution in
many cases. For instance, the Dura® 7 m tall free standing
acoustic wall panels were only 30 mm in thickness. Painting or coating is also
not required as the natural fair-face concrete finish will retain its properties
over time.
2) Workability
With DURA®, a water-binder ratio of 0.13 is
achievable. To maintain flowability, an ultra high-range superplasticizer
is used, which makes DURA® behave like self-consolidating concrete.
Some professional even refer to this as "liquid stone". This opens up the
possibility of casting very thin elements.
3) Durability
DURA® is a very dense material with very small
and discontinuous pores which prevent the movement of vapors within
the concrete matrix. The impermeability of DURA® is less
than one-tenth of conventional concrete. This chemical and physical
structure results in a dense, hard matrix with corrosion resistance
superior to granite. DURA® is therefore highly resistant to
weathering, chemical attack, hydraulic scouring and salt-water ingress. Hence,
coating or painting is unnecessary.
4) Ductility
The use of ultra-high strength steel fiber gives DURA®
the flexural toughness property comparable to structural steel. The
flexural strength at first crack range from 10 to 12 MPa, with ultimate
flexural strengths of 15 to 35 MPa can be achieved. Experimental studies show
the crack widths are no more than 0.05mm and 0.5mm at both serviceability and
ultimate limit states respectively. No fiber fracture has been observed at
any stage of cracking. The left picture showing multiple closely-spaced fine
cracks demonstrate the superior ductility of DURA®. This ability to
redistribute stresses is not achievable in conventional
concrete.
5) Designer & Analysis
Taking into consideration that UHPdC is a relatively new
generation material, tremendous amount of effort invested in R&D and we
are able to come out with an optimum design that enchance the fullest
use of the material attributes. Technology is not just the material itself,
but also the design and the system of the material. Due to the limitation
of code provision for this new material, extra effort is used to ensure
DURA® products are stands in the highly safe margin of security, such
as we work closely with professionals, academics. prominent engineers and
builders both local and abroad.
6) Research & Development
Dura technology is build on R&D basis. As we deal with concrete
technology, we ensure that our team are always up to date with
the latest technology. In addition, we will continue with new product
development. Every product of ours will undergo through extensive and
proper testing and study before it is being used or
commercialized.
7) Engineering Maximisation
DURA® unique combination of superior properties
facilitate the ability to design innovative structures, such as creating
structures with longer span, new shapes that are thin and slender, light
and more elegant look. For example, picture at the right shows
a 650mm deep DURA® beam able to spanned cantilever 50 ft
from the column centre line. Scientist believe carefully designed / planned
project using UHPdC technology not only would lead to service life for 200
years or more, but also yield at least 70% discount on total life-cycle
cost.
8) Industrial Building System (IBS)
DURA® unique combination of superior properties
facilitate the ability to design innovative structures, such as creating
structures with longer span, new shapes that are thin and slender, light
and more elegant look. For example, picture at the right shows
a 650mm deep DURA® beam able to spanned cantilever 50 ft
from the column centre line. Scientist believe carefully designed / planned
project using UHPdC technology not only would lead to service life for 200
years or more, but also yield at least 70% discount on total life-cycle
cost.
9) Sustainability
DURA® Technology is a green concrete technology which
support the visionary of sustainability (i.e. using less cement in the concrete
and using less concrete in a product). According to alarming reports of
many experts worldwide, the issue of Global Warming is the most devastating
problem human-beings are facing today. Thus, DURA® Technology shall
give some initial saving in term of cost, lower energy
consumption and waste emissions when compares to existing technology. In
life-cycle measure, it's sustainability is even more significant than
others.