High Performance Concrete Floors and Pavements

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Description

The aim of pavement and floor design is to select the most economical pavement thickness and composition which will provide a satisfactory level of service for the anticipated traffic. Therefore the correct choice of slab or pavement is only possible if we fully understand the demands placed in terms of performance of the wearing surface. These notes explain the loads that have to be considered and how they are modelled for these pavement types. It also discusses projects that have been constructed with no moving joints using steel fibres combined with mesh.

Publisher

Concrete Institute of Australia

Published

2016

Format

Lecture Notes - Hard Copy

Publication Details

 

  • Contributors: Geoff Ayton, Todd Halliday, Alan Ross,Dominic Lambert, Robert Rodden

These notes review ACI design considerations for Industrial and Commercial Floors and Pavements with a focus on a range of design types. The content covers the relationship and interaction between thickness, joint spacing, load transfer and curling while providing recommendations for cost effective flatwork solutions that achieve high performance outcomes in serviceability and design life.

Topics
  • Geoff Ayton - Consultant, former Roads & Maritime Services, Manager, Pavement Structures Unit
 
  • Introduction
    • Differences in design between slab-on-ground and structures
    • Quality in construction
  • Joint Design
    • Rigid pavement formats
    • Common joint types
    • Geometric fundamentals
    • Joint induction methods
    • Interface issues
    • Intersections
    • Joint sealants
    • Kerbs, barriers & pits
  • Construction
    • Batching and mixing
    • Concrete paving
    • Compaction
    • Texturing
    • Curing & protection
  • Maintenance
    • Routine maintenance practices
  • Todd Halliday Principal Structural Engineer, Northrop Consulting Engineers

Industrial warehouse developments are increasingly now built to serve an ever expanding and developing logistics industry.  These facilities are getting larger, racking has become higher and have to be engineered to cater for increasing static and dynamic loadings. The long term performance of the pavement is paramount to the end user and property owner. To ensure optimum levels of performance, engineers must carefully design and detail pavements for the design life of the facility.
 
This presentation will cover typical static and dynamic loadings, as well as pavement and joint design for conventional steel and steel fibre reinforced pavements. It will also cover designs and specifications to minimise cracking risks to pavements. 

 
  • Design Internal slabs for large logistic warehouse facilities
    • ‚ÄčTypical static and dynamic loadings
    • Structural design of slab
    • Detailing to prevent restraint
    • Joint design
  • External Slabs for logistic warehouse facilities
    • Typical static and dynamic loadings
    • Structural design of slab
    • Detailing to prevent restraint
    • Joint design
  • Alan Ross - General Manager BOSFA

Container pavements are distinctly different from typical external concrete slabs; they have to able to carry extremely heavy loads from block stacked containers and container handling equipment.  They should also be designed and detailed in such a way to minimise as much as possible on-going maintenance.  This is challenging because pavements of this type are worked constantly from the movement of the container handling equipment and constant rotation of stacked containers.  Uncontrolled cracking, joint failure, the associated maintenance and loss of productivity can be problematic.
 
This presentation explains the loads that have to be considered and how they are modelled for these pavement types.  It also discusses projects that have been constructed with no moving joints using steel fibres combined with mesh.  It explains the technical and practical reasons for choosing a solution that enables the construction of large joint free areas.  

 
  •   Dominic Lambert - Manager NSW & ACT Building Freyssinet

This presentation will include an overview of the technical and commercial benefits of using post tensioning systems for slab on grade applications to improve structural performance, reduce costs and increase construction productivity. The presentation will also include relevant post tensioning design considerations and case studies of large scale applications of the technology in the Australian market
 
  •          Robert RoddeLead Engineer, PNA Construction Technologies, Inc.& P.E., Infrastructure         Solutions - Roads, R&D LafargeHolcim

This presentation reviews ACI design considerations for Industrial and Commercial Floors and Pavements with a focus on a range of design types. The content covers the relationship and interaction between thickness, joint spacing, load transfer and curling while providing recommendations for cost effective flatwork solutions that achieve high performance outcomes in serviceability and design life. 

This presentation provides an overview of Joint Management solutions encompassing Industrial Floor and Pavement environments. The discussion reviews the key considerations and for best practice in Joint Management incorporating Load Transfer and Joint Defection controls with a focus on serviceability and extension of the asset lifecycle.
 
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