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This course is a practical structural design course that contains step-by-step procedures that include instructions that help understand and design for slab on ground. This course presents information on the design of slabs-on-ground, primarily industrial floors. The course addresses the planning, design, and detailing of slabs. Background information on design theories is followed by discussion of the types of slabs, soil-support systems, loadings, and jointing. Design methods are given for unreinforced concrete, reinforced concrete, shrinkage-compensating concrete, post-tensioned concrete and fiberreinforced concrete slabs-on-ground, followed by information on shrinkage and curling problems. Advantages and disadvantages of each of these slab designs are provided, including the ability of some slab designs to minimize cracking and curling more than others. Several design methodology will be introduced including the ACI design methodology. Examples using several design methods are also provided.

Objectives:
This course will provide the participants with an understanding of the subgrade drag theory and how it relates to the reinforcing of slab-on-grades as required to help control shrinkage cracking. Two other alternate design methods are also discussed relative to the sizing of "distribution" slab-on-grade reinforcement. Different types of reinforcing materials are also discussed including welded wire fabric, conventional deformed reinforcing bars and post-tensioning tendons.

Target Audience
Structural site Engineers and even design Engineers needing to refresh their design skills according to the new building code and design standards

Structural contractors wanting to know how the structures they erect are designed
Structural draftsmen wanting to know how the structures they draw are designed
Architects and non-structural engineers such as Mechanical, Electrical and Plant Engineers interested in upgrading their knowledge and skills in the area of structural design Learning Outcomes
This course will introduce you to the current codes and standards that govern structural design of slab on ground, including the structural provisions of the ACI . You will also learn:Basic understanding of codes and design methods.
This course will enable the user to become familiar with the following methods of designing slab-on-ground:
PCA method
Slab thickness design by WRI method
COE charts
Equivalent tensile stress design
Shrinkage-compensating concrete using post-tensioning to minimize cracking
Program Outline (1.2 CEUs / 12 PDHs)
Concrete slabs-on-ground are highly susceptible to cracking due to shrinkage. Construction and control joints are typically used to control crack location. Since it is not always desirable or practical to use a large number of closely spaced joints, reinforcing of the slab-on-grade allows for greater flexibility with joint spacing. Welded wire mesh or deformed bar reinforcement normally used in slabs-on-ground helps to control the width or growth of any cracks that may occur. This type of steel is sometimes called distribution reinforcement to differentiate it from structural reinforcement that is added to increase the load-carrying capacity of the slab.

Introduction
Design theories for slabs-on-ground
Slab types
Design and construction variables
Support systems for slabs-on-ground,
Geotechnical engineering reports
Subgrade classification
Modulus of subgrade reaction
Design of slab-support system
Site preparation
Inspection and site testing of slab support
Special slab-on-ground support problems
Loads
Vehicular loads, concentrated loads, distributed loads, line and strip loads, unusual loads & construction loads
Environmental factors
Factors of safety
Joints
Load-transfer mechanisms
Sawcut contraction joints
Joint protection
Joint filling and sealing
Design of unreinforced concrete slabs
Thickness design methods
Shear transfer at joints
Maximum joint spacing
Design of slabs reinforced for crackwidth control
Thickness design methods
Reinforcement for crack-width control only
Reinforcement for moment capacity
Reinforcement location
Design of shrinkage-compensating concrete slabs
Thickness determination
Reinforcement
Design of post-tensioned slabs-onground
Applicable design procedures
Slabs post-tensioned for crack control
Industrial slabs with post-tensioned reinforcement for structural support
Residential slabs with post-tensioned reinforcement for structural action
Design for slabs on expansive soils
Design for slabs on compressible soil
Fiber-reinforced concrete slabs-onground
Polymeric fiber reinforcement
Steel fiber reinforcement Structural slabs-on-ground supporting building code loads
Design considerations
Design and specification considerations
Temperature drawdown
Reducing effects of slab shrinkage and curling drying and thermal shrinkage
Curling and warping
Factors that affect shrinkage and curling
Compressive strength and shrinkage
Compressive strength and abrasion resistance
Removing restraints to shrinkage
Base and vapor retarders/barriers
Distributed reinforcement to reduce curling and number of joints
Thickened edges to reduce curling
Relation between curing and curling
Warping stresses in relation to joint spacing
Warping stresses and deformation
Effect of eliminating sawcut contraction joints with post-tensioning or shrinkage-compensating concrete

Design Examples
Design examples using PCA method
Slab thickness design by WRI method
Design examples using COE charts
Slab design using post-tensioning
Design example: residential slabs on expansive soil
Design example: using post-tensioning to minimize cracking
Design example: equivalent tensile stress design
Examples using shrinkage compensating concrete
Example with amount of steel and slab joint spacing predetermined
Design examples for steel FRC slabs-on-ground using yield line method

Instructor
Dr. Gamal Abdelaziz, P.Eng, MSc. has a Ph.D. in Geotechnical Engineering from Concordia University, Montreal, Canada.

Currently he is a senior geotechnical engineer with Global Engineering , Edmonton , Alberta, Canada and adjunct professor at Ryerson university, Toronto, Ontario. He has over 22 years of experience in geotechnical and structural engineering, foundation design, teaching, research and consulting in Canada and overseas.
Dr. Abdelaziz is a former adjunct professor at University of Western Ontario, London, Ontario, Canada , visiting professor at Ryerson University, Toronto, Canada and part time professor at Seneca College, Toronto, Canada.
Dr. Abdelaziz is specialized in numerical modeling for solving sophisticated geotechnical engineering problems with respect to pile foundation and the linear and nonlinear analysis of soil-structure interaction. He designed charts to predict pressures acting on tunnels, and developed analytical model for pile bearing capacity prediction.

Dr. Abdelaziz authored a number of technical papers and delivered numerous internal and external workshops on various geotechnical and Municipal engineering topics. Dr. Abdelaziz has been involved in a number of projects in Canada and overseas, such as tunneling, silos, buildings, retaining structures, siphons, irrigation networks and many other civil engineering projects in terms of design and construction.

Dr. Abdelaziz is a member in different professional societies such as APEGGA, PEO, CGS, CDA, TAC and ABPA. He is also a reviewer for the Canadian Geotechnical Journal.