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Recent Advances and Uses of Roller Compacted Concrete for Pavement Construction in the United States

Airports, Highways, Industrial, Intermodals/Ports, Local Government, Trackslabs Members Only

Roller Compacted Concrete (RCC) is a no slump concrete that is placed by an asphalt paver and compacted with vibratory rollers similar to asphalt pavement construction. RCC has long history of good performance as a pavement for ports, container yards, and manufacturing plants. This paper will summarize a recent survey...

Developments in Rapid Set Lean Concrete Subbase

Highways, Trackslabs Members Only

The technology and practice for single shift high strength concrete base replacement, mainly at night, using rapid set concrete has been established in Australia for ten years. Since 2017 this technology has now been adapted and extended to developing a rapid set lean concrete and related registered mixes. This has...

Characterization of joint sealants through an innovative test procedure

Airports, Highways, Industrial, Intermodals/Ports, Trackslabs Members Only

Joint sealants are indispensable components of Jointed Plain Concrete Pavements (JPCP), the standard construction method in Germany. The joint filling system is subjected to various loads during their service life, which in practice lead to a regular renewal of the sealing after about 7 -10 years. Nevertheless, it must be...

Use of glass fibre reinforced polymer bars in concrete pavements

Highways, Local Government, Trackslabs Members Only

The use of glass fibre reinforced polymer (GFRP) bars as an alternative to steel reinforcement has considerably increased over the past decade. Design-related information is now available and can be adapted into the Australian design and construction practice. The results of technological research and field implementation in concrete pavements carried...

The important role materials play in concrete pavement design, performance, and service life

Airports, Highways, Industrial, Intermodals/Ports, Trackslabs Members Only

The materials that make up concrete have a direct influence on the decisions made during pavement design and construction, as well as the performance of the pavement in service. What happens when material performance varies from what was considered at design stage? What if we need to change construction methods...

Overview of light rail track slab design

Trackslabs Members Only

Recently Aurecon have developed the design on several urban light rail projects, with a notable example being that recently opened in Newcastle. With several projects currently in development and tender phases, and the likelihood of further stages of light rail expansion, it is important to understand the options available for...

Preparation for Concrete Pavements

Highways, Local Government, Trackslabs Members Only

This presentation covers key topics in the adequate construction preparation works for successful concrete pavements including; Subgrade Preparation Mix Design Mix Consistency String line Setup  Paver Operation Motivated Trained Team Tips and Tricks

RMS Standard Concrete Construction Drawings: Latest Revisions

Highways, Local Government, Trackslabs Members Only

This presentation by the Senior Pavements Manager, Engineering Services Branch, Roads and Maritime Services, informs the industry of revisions to the RMS Standard Concrete Construction Drawings. Revisions in this presentation outline changes new at the time of presenting May 2016.  

New Developments in Concrete Mix Design

Airports, Highways, Industrial, Intermodals/Ports, Trackslabs Members Only

This forum addressed both concrete road pavements & concrete industrial pavements. Presentations made addressed concrete mix designs, design & construction aspects, as well as current information about diamond grinding of concrete road pavements in Australia. New developments in concrete mix design: • Sands have become finer with a gap between...

Good Concrete Mix Design

Airports, Highways, Industrial, Intermodals/Ports, Trackslabs Members Only

This forum addressed both concrete road pavements & concrete industrial pavements. Presentations made addressed concrete mix designs, design & construction aspects, as well as current information about diamond grinding of concrete road pavements in Australia. Good Concrete Mix Design: •Understand requirements of the concrete. •Identify if an existing mix may...

Plastic Shrinkage Cracking Spreadsheet to calculate evaporation rates of bleed water from concrete surfaces

Airports, Highways, Industrial, Intermodals/Ports, Trackslabs Members Only

This document is a simple Excel spreadsheet which allows the user to input Air Temperature, Concrete Temperature, Relative Humidity & Wind Velocity to determine the Bleed Water Evaporation Rate. The formulae, developed by P Uno, are based on the well known ACI Bleed Water Evaporation Nomograph.

Concrete Pavement Design, Construction & Performance

Airports, Highways, Industrial, Intermodals/Ports, Trackslabs Members Only

The ACI has released a new publication "Concrete Pavement Design, Construction and Performance written by Norbert Delatte. It is available through the ACI at www.concrete.org - go to their bookstore. "A pavement project may be envisioned as a three link chain, consisting of materials, design, and construction. Because the weakest...