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Experimental Testing of Emulative Connections for Accelerated Bridge Construction in Seismic Areas
The use of precast concrete for construction of bridge substructures offers a number of advantages over the conventional use of cast in place (CIP) concrete. These advantages include increased construction speed and quality, minimised traffic…
Effect of Crack Control Measures in AS 5100.5 on Partially Prestressed Super-T Girder Bridges
Australian bridge design code AS 5100.5 in Section 8.6.2 prescribes simplified criteria to meet the requirements for crack control applicable to a partially prestressed concrete beam. The incremental stress permitted in bonded reinforcement after…
Importance of Reactive SiO2, Al2O3 And Na2O In Geopolymer Formation
Geopolymer is an alternative for Portland cement-based binder. It has shown better or similar engineering and durability properties compared to Portland cement-based binders. The properties of geopolymer depend on the characteristics of the…
Severity of the Tidal Environment for Concrete Exposed to Brackish Water
Roads and Maritime Services NSW constructs many bridges over watercourses and the structural elements of these bridges are often exposed to a wide range of brackish water. Salinity levels of brackish water range from fresh drinking water to sea…
Specification and Use of Geopolymer Concrete
Geopolymer concrete consists of similar ingredients to conventional concrete except that the cement is wholly replaced by industry by-products such as slag and fly ash and the chemical reaction is promoted by a concentrated solution of alkali-based…
Incorporating ACI 440.8 into AS 5100.5 for FRP Strengthening Via M80 Upgrade Project Case Study
As bridges age and standards evolve, it has become increasingly necessary to strengthen existing bridges as a much cheaper option than replacing bridges as a whole.
The New Australian Standard AS 5100 Part 9: Timber Bridges
Timber bridges are enjoying a revival around the world for pedestrian and vehicular use. There are several reasons for this. Growing interest in reducing CO2 emissions and increasing sustainability has paved the way in part. New and innovative use…
An Investigation into Graphitic Corrosion of Cast Iron Bridge Piers
Cast iron was extensively used in bridge piers in early metal bridges in Australia. These cast iron bridge piers have performed well against atmospheric corrosion. However, the portion immersed in water suffers from graphitic corrosion, a form of…
Establishing Compliance of Steel Mill Products: A Comparison Between Australian Steel Standards and the Corresponding American Standards
Australian steel standards have stringent requirements in regard to product conformity. According to Australian structural steel standards, the acceptance of steel is conditional on the evidence of compliance provided in rigorous mill test reports/…
Namoi Floodplain Viaduct: Design of a 1 Km Rail Viaduct in a Remote Area for a 35-Year Design Life
The Boggabri Maules Creek Rail project will connect the existing Werris Creek to Mugindi railway line to the existing Boggabri Coal Mine and the new Maules Creek Coal Mine.The railway line will provide Boggabri Coal Mine with improved logistics,…