DATESSYDNEY

13 OCTOBER

ADELAIDE21 OCTOBER

PERTH22 OCTOBER

TASMANIA27 OCTOBER

MELBOURNE28 OCTOBER

BRISBANE29 OCTOBER

C racking in reinforced concrete structures is inevitable. Cracks occur wherever and whenever the tensile stress in the concrete

exceeds the tensile strength of the concrete. This can occur as a result of design, supply, construction, and project management processes. For example, if care is not taken during construction, cracking can occur in the wet concrete before the concrete sets due to plastic shrinkage or plastic settlement. After the concrete sets and hardens, tensile stress at any location in the structure may be caused by many different factors, including early-age heat of hydration, applied loads, restrained shrinkage, temperature changes, settlement of the supports and so on. This can have dramatic impacts on the concrete, the structure, and the stakeholders involved.

This workshop on Cracks and Crack Control in Concrete Structures will look at how concrete cracking can be controlled by decisions made at the design stage and during the practical application of the material. The seminar will also consider where the risk lies in cracking, who is responsible, and the impact it can have on the overall performance of the concrete.

Two of Australia’s concrete experts with respect to cracking, crack control requirements, and the practical implications of these, will provide their extensive research and knowledge in these areas to provide delegates with specifi c information that can be applied to create better concrete outcomes for designers, suppliers, placers, contractors, project managers, and asset owners.

CONCRETE INSTITUTEo f A U S T R A L I A

Program and registration details overleaf >>>

CRACKS & CRACK CONTROL IN CONCRETE

STRUCTURES

1. Introduction (8.30am – 9.30 am) a. Types of cracks b. Plastic cracking c. Cracking in hardened concrete

2. Assessment of Cracks and performance requirements (9.30am – 10.15 am) a. Principles of crack formation and

control in reinforced concrete i. Restrained shrinkage cracking ii. Load induced cracking b. Methods for crack control c. Assessment of cracks d. Design performance requirements Morning Tea 10.15am – 10.45am

3. Shrinkage and Early-age temperature induced cracking and crack control (10.45am – 11.30am) a. Early-age thermal cracking b. Cracking due to internal restraintto

thermal differentials c. Cracking due to internal restraint

provided by embedded reinforcement d. Cracking due to external restraint provided at supports i. End restraint ii. Edge restraint e. Prediction of crack width and

crack spacing f. Minimum reinforcement

requirements

4. Cracking caused by applied loads (11.30am – 12.15am) a. Direct tension cracking

b. Flexural cracking c. Prediction of crack width and crack spacing

Lunch 12.15pm – 1.00pm 5. AS3600 requirements for shrinkage and creep (1.00pm – 1.30pm)

6. Crack Control in Practice (1.30pm – 2.30pm) a. A practical approach to crack control i. Mix designs ii. Batching iii. Design, Placement and constructability iv. After placement Afternoon Tea 2.30pm – 3.00pm

7. Cost of Unplanned Cracking (3pm – 4pm) a. Performance of the concrete b. Risk analysis – who is responsible c. Contracts and legal requirements

8. Open Forum and Discussion (4pm – 4.30pm)

PRICINGCIA Members $590CIA Retired Members $295CIA Student Members $295Non-Members $795Seminar & Members Package (incl. 12 month Individual Membership) $850

PRESENTERS:

Ian Gilbert is Emeritus Professor of Civil Engineering at the University of New South Wales.

Michael van Koeverden is a

Director at BG&E Materials Technology

and the incoming President of the

Concrete Institute.

To register or to fi nd out more please visit http://www.concreteinstitute.com.au/crackcontrol

CRACKS & CRACK CONTROL IN CONCRETESTRUCTURES

DATESSYDNEY

13 OCTOBER

ADELAIDE21 OCTOBER

PERTH22 OCTOBER

TASMANIA27 OCTOBER

MELBOURNE28 OCTOBER

BRISBANE29 OCTOBER

AGENDA