Concrete News

Sep 15, 2009
An expanded range of inflatable pipe stoppers for maintenance, testing and emergency tasks is being introduced to Australia by Air Springs Supply. The transportable and reusable stoppers are produced by Pronal, the company that produced the inflatable bags used to lift sections of the liner Titanic from nearly four kilometres deep in the Atlantic.

Aug 26, 2009
Vietnam may have nuclear power by 2020 - Nuclear power plants typically have five layers of protection. If an incident happens in one section, other layers will help prevent its spread. The last layer will be built of reinforced concrete, which is over 1 meter thick. If four other layers are broken, this "containment vessel" can contain the radiation for a long period of time while awaiting experts.

Contact Info
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NasFix Pty Ltd.
PO Box 6276, Lakemba DC 2195
NSW Australia
Phone: (+61 2) 9742-1616
    Fax: (+61 2) 9742-1717
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  • Specialists in concrete steel re-enforcement and placement

  • Experienced in all types of steel work and structural design
    • Conventional
    • Post-tensioning
    • Ultra Floor
    • Suspended Slabs
    • Ground Works
  • Our work is performed by a team of 15 experienced steel fixers

  • The Teams expertise and experience spans over 25 years

  • We pride ourselves on prompt, high quality and professional services

  • Please contact us for further information

What is Reinforced Concrete?

Concrete is "artificial stone" obtained by mixing cement, sand, and aggregates with water. Fresh concrete can be molded into almost any shape, which is an inherent advantage over other materials. Concrete became very popular after the invention of Portland cement in the 19th century; however, plain concrete does not easily withstand tensile and shear stresses caused by wind, earthquakes, vibrations, and other forces and is therefore unsuitable in most structural applications.

To overcome this weakness, steel rods are embedded in such a manner that the tensile strength of steel and the compressive strength of concrete work together in resisting forces. The reinforcing steel-rods, bars, or mesh absorbs the tensile shear, and sometimes the compressive stresses in a concrete structure..

Reinforced concrete developements in design and construction practice pioneered by European engineers in the late 19th century, revolutionized the construction industry and concrete became one of the world's most common building materials. At the present time, reinforced concrete is extensively used in a wide variety of engineering applications (e.g., buildings, bridges, dams).

“The city is not a concrete jungle, it is a human zoo. ” - Desmond Morris