AS3600-2009
– Concrete Structures Code
The
Concrete Structures Code AS3600-2009 was released in December 2009. This new
Code incorporates higher grades of concrete e.g. 65 MPa, 80 MPa and 100 MPa. As
such many of the formulas in the 2001 Code have been changed or be modified to
account for these higher grades of concrete.
Seminars on the Reinforced & Prestressed Concrete are constantly being run regularly by Cement & Concrete Services. This information can be seen by accessing the Workshops & Seminars button on this website
AS4671-2001
– Reinforcement Code
All
reinforcing standards related to steel bar and steel mesh (fabric), namely
AS1302, 1303, 1304 have all been revised and are now included in one new
Standard AS4671. The changes primarily relate to the new 500 MPa steels. The new
terminology for square and rectangular mesh (i.e. fabric) is now SL or RL mesh
(e.g. SL72 and RL918) and Y bars have now changed to N bars (e.g. N 16 bars).
Seminars on Reinforced Concrete outlining these changes are being run regularly
by Cement & Concrete Services. This information can be seen by accessing the
Workshops & Seminars button on this website.
AS/NZS1170
– Loading Code
AS/NZS1170
now has a section that addresses all the various loading combinations and in
particular has revised the 1.25G and 1.5Q load factors to 1.2G and 1.5Q. The
code is called “AS/NZS1170 Load Combinations”.
In fact the terms Dead Load and Live Load have been replaced by the terms Permanent Action and Imposed Action. These terms and combinations are
addressed in the workshops being run by Cement & Concrete Services
or Seminar Services Australia (refer to our Workshops/Seminars menu button for further details).
AS3700
– Masonry Code
The
commentary to the Masonry Code AS3700 Supp1 – 1991, was revised in 1999 and
thus became AS3700 Supp1 – 1999. This puts it in line with the present Masonry
Code AS3700 – 1998.
AS2701
– Mortar Analysis Code
The
Code that relates to chemical analysis and testing of cement and lime based
mortars has been revised. The old AS2701.10 now becomes AS2701 – 2001.
AS1302/1303/1304
– Reinforcement Codes
These
Codes have been all replaced by AS4671-2001 which incorporates the new 500 MPa
steels i.e. bar and mesh reinforcement.
AS2870
– Residential Slab & Footings Code
The
latest version of this standard was released in 1996. In Jan 97 Amendment 1 was
issued and then Amdt 2 – June 1999 was issued. This Code is up for revision
especially in light of the fact that all the reinforcement quoted in its text
refers to F72 & Y16 bars (for example) - which do not relate to the new
500MPa steels on the market at present (i.e. SL72 mesh & N16 bars)