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ASCP2021 6th Concrete Pavements (e)Conference – Proceedings (with video recordings)

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

Outline 2020 tested our flexural capacity and at times strained our mental tensile strength to 85% yield. To maintain tradition, ASCP has worked hard to develop a unique line-up of papers and delivery format for its 6th Concrete Pavements Conference which was delivered in August 2021. Like previous biennial conferences,...

Pavimentos de Hormigón Con Bajo Nivel de Ruido (Pavement Note 003) [Spanish, español]

Airports, Highways, Industrial, Local Government Free

Texturizado Suave, Seguro, Duradero y Rentable (LDNG) Las administraciones que gestionan infraestructuras viarias quieren pavimentos con bajo coste de construcción inicial, bajo coste de mantenimiento, buena resistencia al deslizamiento, especialmente en clima húmedo 1, buen confort y calidad de conducción y bajo nivel de ruido. El LNDG cumple con cada...

El Valor del Pavimento de Hormigón (Pavement Note 001) [Spanish, español]

Highways, Industrial, Local Government Free

Beneficios Económicos, Operativos y Sociales Las carreteras de hormigón presentan numerosos beneficios económicos, de accesibilidad y seguridad en comparación con otras opciones de pavimentos flexibles. Esta Nota de Pavimentos presenta un resumen de las últimas novedades que comparan las opciones de pavimentos para cargas pesadas. La intención de esta Nota...

ASCP2021 6th Concrete Pavements (e)Conference – Program & Summary

Highways, Industrial, Intermodals/Ports, Local Government Free

Outline 2020 tested our flexural capacity and at times strained our mental tensile strength to 85% yield. To maintain tradition, ASCP has worked hard to develop a unique line-up of papers and delivery format for its 6th Concrete Pavements Conference which was delivered in August 2021. Like previous biennial conferences,...

Partnering for innovative solutions in concrete paving: A tour of a few key concrete states in North America

Highways, Local Government Members Only

Tim Nash presents on Partnering for innovative solutions in concrete paving. The presentation covers: General overview of US concrete paving market (Covid effect, spending outlook and market characteristics) Paving manufacturer focuses (mold design, frame/chasis design, control systems, attachments) Discussion of various recent projects (Interstate, local roads, safety barriers)

Macro Synthetic Fibres – Potential Uses in Pavements [MSFRC]

Highways, Industrial, Local Government Members Only

Presentation Overview What are Macro Synthetic Fibres Review of Current Practice (Global, National, Domestic & SRAs/DoTs) Current and potential applications Recommendations What are Macro Synthetic Fibres? Available commercially since the early 2000s Intended to be used as a replacement for steel mesh reinforcement and not for structural steel design. Manufactured...

New Developments in Rapid Set Concrete Slab Replacements

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

Current and future eras are seeing an operational environment where road occupancy for pavement maintenance or repairs will be severely restricted under conditions of maximising availability for service traffic and access to roadside properties. A key driving force for concrete pavement slab replacement, where required, is the need to use...

Latest Developments for Roller Compacted Concrete (RCC) in USA

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

Roller Compacted Concrete (RCC) is a no slump concrete that is placed by a high density 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 summarise a recent...

Design Of Ultrathin Fiber Reinforced Concrete Pavements

Highways, Local Government Members Only

A new methodology has been developed to design the concrete slab thickness by optimizing the slab size given the geometry of the truck axles, the design is based on an unbonded system with either granular, HMA, Stabilized or Concrete Base. The key principle of the design method is to configure...

New Method of Paving Concrete Production

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

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,...

Geopolymer and High Volume Fly Ash Concrete for Pavements

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

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...

Use of recycled concrete aggregates in concrete pavements

Highways, Industrial, Local Government, Trackslabs Members Only

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%,...