Trackslabs

The morning sessions saw Peter Carson (Carson Group) deliver a Holbrook Case Study on Concrete Overlay Performance , followed by Mohammed Ibrahim Mostazid (UNSW) walking us through Developing Accelerated Tests Criteria for Assessing Geopolymer Concrete Durability. After morning tea, Frank Grech (Kaysand) presented  ‘Engineering the best sustainable concrete sand". Next,...

Investigation of carbonation behaviour on high volume GGBFS use in rigid road pavement concrete B. Mehdizadeh 1*, K. Vessalas 2, A. Castel 3, M Mortazavi 4 1 PhD candidate, School of Engineering and Information Technology, University of Technology Sydney 2 A/ Professor, Head of Discipline, Structural and Materials Engineering, University...

Modern concrete pavements are based on sophisticated blends of cements, often containing SCM, graded nonreactive aggregates and various admixtures, all of which are aimed at producing the most durable pavement possible. Placement techniques also incorporate the use of various curing compounds, which again are aimed at producing durable concrete. However,...

Much interest has been shown in improving the sustainable performance of concrete. The use of cement replacement materials and geopolymer concrete offers benefits in terms of reduced carbon footprint and enhanced properties. This paper reviews the properties of geopolymer concrete and concrete with high levels of cement replacement materials relevant...

The quality of the input of fine and coarse aggregates for concrete has an influence on the quality and consistency of the new concrete, and this is particularly applicable when recycled concrete aggregates (RCA) are incorporated in the concrete. The overseas literature indicates that where substitutions do not exceed 20%,...

Recent research by the Cement Concrete & Aggregates Australia (CCAA) focused on the selection of manufactured sands for general concrete applications and for concrete road pavements. Selected manufactured sands can be used as part of the fine aggregates to deliver workable concrete for general applications and to provide good skid...

The International Center for Aggregates Research has been performing research on the use of manufactured fine aggregates (MFA) for over 15 years. The first issue was the high amounts of micro fines, i.e. minus 75 μmm, that typically exceed the amounts permitted by ASTM C33 in the production of concrete....

This presentation outlines the history of concrete pavement associations in Europe and the informed rationale behind the formation of EUPAVE. Please note this presentation is in .pps format

Design standards  Australia ‒ TfNSW Asset Standards Authority requirements ‒ Somewhat relevant perhaps…  Australian Standard (AS) 5100 Bridge Design  Austroads (AGPT02) ‒ Catalogue approach (standard details)  VicTrack / Yarra Trams  Europe ‒ BS EN 16432-1:2017 Railway applications – Ballastless track systems  Other ‒ TCRP...

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...

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...

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...