DURA® UHPdC
DURA® ULTRA-HIGH PERFORMANCE 'ductile' CONCRETE (UHPdC)
DURA® - is a trade name for the Malaysian blend of Ultra-High Performance 'ductile Concrete (UHPdC), which possess very high strength and ductile composite formulated by combination of Portland cement, silica fume, fine silica sand, superplasticizer and very high strength discrete steel fibers. This material provide compressive strength of 150 MPa and flexural strength of 30 MPa respectively in 28 days. DURA® has the ductility and durability unachievable by conventional concrete. With the immerse strength and ductility, it could be the architects' 'dream-come-true' material. It is also proved to be aesthetically promising as maintenance factor is almost negligible. UHPdC comes in many profound attributes which made this material eligibility simply a 'breakthrough advanced engineered material'.
Application
Benefits
With its revolutionary properties, DURA®offers tremendous advantages such as :
- Eliminating the use of conventional steel reinforcing bars and stirrups which required a significant amount of labour input, supervision and quality control - thus, vastly minimizing human error and making structures more constructible and higher quality. This, in turn, will lead to significant cost saving maintenance and long-term service costs.
- Flexibility and freedom of innovative designs - enabling concrete structures and features to be more interesting and aesthetically expressive.
- Ultra-light weight - typically by a factor of 2 in comparison to conventional RC or PC elements leading the ease in handling, transportation and installation. As a consequence, it will lead to further cost savings and improve safety margins in the construction process.
- Excellent durability - with high impermeability against aggressive physical-chemical atmosphere; high resistance to corrosion, abrasion and impact load - hence, offering longer service-life, negligible maintenance and contributing to a sustainable development regime.
- Savings in immediate overall project cost and long term service cost.
Technical Characteristic
Table 1: DURA® compare to normal strength concrete (NSC) and high performance concrete (HPC)
↑ - Three-pooint bending using un-notched 100 x100 x 300mm specimen
↑↑ - Four-point bending using notched 100 x 100 x 300 mm specimen
Table 1: DURA® compare to normal strength concrete (NSC) and high performance concrete (HPC)
Characteristics | Unit | Codes / Standards | NSC | HPC | DURA® | |
Specific Density | kg/m3 | BS1881:Part 114-1983 | 2300 | 2400 | 2350 – 2450 | |
Cylinder Compressive Strength | MPa | AS1012.9-1999 | 20 – 50 | 50 – 100 | 120 – 160 | |
Cube Compressive Strength | MPa | BS6319: Part 2-1983 | 20 – 50 | 50 – 100 | 130 – 170 | |
Creep Coefficient | AS1012.16-1996 | 2 – 5 | 1 – 2 | < 0.5 | ||
Post Cured Shrinkage | με | AS1012.16-1996 | 1000 – 2000 | 500 – 1000 | < 100 | |
Modulus of Elasticity | GPa | BS1881:Part 121-1983 | 20 – 35 | 35 – 40 | 40 – 50 | |
Poisson’s Ratio | 0.2 | 0.2 | 0.2 | |||
Split Cyl. Cracking Tensile Strength | MPa | BS EN 12390-6:2000 | 2 – 4 | 4 – 6 | 6 – 10 | |
Split Cyl. Ultimate Tensile Strength | MPa | BS EN 12390-6:2000 | 2 – 4 | 4 – 6 | 10 – 18 | |
Flexural 1st Cracking Strength | MPa | ASTM C1018-1997 ↑ | 2.5 – 4 | 4 – 8 | 8 – 12 | |
Modulus of Rupture | MPa | 2.5 – 4 | 4 – 8 | 18 – 35 | ||
Bending Fracture Energy, Gf,δ=0.46mm | N/mm | 0.05 – 0.10 | 0.06 – 0.18 | 1 – 2.5 | ||
Bending Fracture Energy, Gf,δ=3.0mm | N/mm | 0.05 – 0.10 | 0.06 – 0.18 | 10 – 20 | ||
Bending Fracture Energy, Gf,δ=10mm | N/mm | 0.05 – 0.10 | 0.06 – 0.18 | 15 – 30 | ||
Toughness Indexes | I5 | 1 | 1 | 4 – 6 | ||
I10 | 1 | 1 | 10 – 15 | |||
I20 | 1 | 1 | 20 – 35 | |||
Modulus of Rupture | MPa | JCI-S-002-2003 ↑↑ | 2.5 – 4 | 4 – 8 | 18 – 35 | |
Bending Fracture Energy, Gf,δ=0.46mm | N/mm | 0.05 – 0.10 | 0.06 – 0.18 | 1 – 2.5 | ||
Bending Fracture Energy, Gf,δ=3.0mm | N/mm | 0.05 – 0.10 | 0.06 – 0.18 | 10 – 20 | ||
Bending Fracture Energy, Gf,δ=10mm | N/mm | 0.05 – 0.10 | 0.06 – 0.18 | 15 – 30 | ||
Rapid Chloride Permeability | coulomb | ASTM C1202-2005 | 2000 – 4000 | 500 – 1000 | < 200 | |
Chloride Diffusion Coefficient | m2/s | ASTM C1556-2004 | 4 – 8 x 10-12 | 1 – 4 x 10-12 | 0.05 – 0.1 x 10-12 | |
Carbonation Depth | mm | BS:EN 14630-2003 | 5 – 15 | 1 – 2 | < 0.1 | |
Abrasion Resistance | mm | ASTM C944-1999 | 0.8 – 1.0 | 0.5 – 0.8 | < 0.03 | |
Water Absorption | % | BS1881:Part 122-1983 | > 3 | 1.5 – 3.0 | < 0.2 | |
Initial Surface Absorption | ml/(m2s) | BS1881:Part 208-1996 | 0.7 (10 min) 0.2 (120 min) |
0.1 (10 min) 0.05 (120 min) |
< 0.02 (10 min) < 0.01 (120 min) |
↑ - Three-pooint bending using un-notched 100 x100 x 300mm specimen
↑↑ - Four-point bending using notched 100 x 100 x 300 mm specimen
Compressive Strength
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Flexural Strength
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Features:
1) Aesthetic
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2) Workability ![]() |
3) Durability ![]() |
4) Ductility ![]() |
5) Designer & Analysis ![]() |
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.
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7) Engineering Maximisation
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8) Industrial Building System (IBS)
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9) Sustainability
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