Applied Bond Breaker and Could Not Pour for a Week, Now What?
September 21, 2023 from 3:00pm to 3:30pm Eastern Standard Time
Tampa Convention Center [Lower Level - Ballroom D]
Tilt-up construction is a building method that offers various advantages over traditional construction methods, including speed, efficiency, and durability. One of the techniques used in this method is casting the panels flat on a slab. However, before pouring the slab, a bond breaker must be applied to prevent adhesion between the newly placed panel concrete and the existing slab on grade. The bond breaker typically lasts for one to two weeks, and if panels are not poured within this timeframe, spraying the bond breaker over the rebar can be challenging and cause serious construction issues.
This seminar will explore the option of spraying the bond breaker over the panel rebar in place and examine how it affects the strength characteristics of the wall panel. We will collaborate with a concrete contractor and a university to conduct experiments on a complete panel poured and cured after applying the bond breaker over the panel rebar. We will present the experimental results and compare them to the strength characteristics of a traditionally formed panel (where the bond breaker was not applied over the panel rebar). This will provide valuable insights into scheduling and feasibility for concrete subcontractors in the field.
LEARNING OBJECTIVES
- Understand the importance of using a bond breaker in tilt-up construction to prevent adhesion between panel concrete and the existing slab on grade.
- Learn about the challenges associated with spraying the bond breaker over the rebar on a panel if the concrete is not poured within one to two weeks.
- Gain knowledge about the effects of applying a bond breaker over panel rebar on the strength characteristics of the wall panel in tilt-up construction.
- Advantages of applying bond breaker after the rebar placement of the panels.
TRACK SPONSOR - SureBuilT Concrete Forms & Accessories
SureBuilt is a USA manufacturer of concrete construction products, including form ties, handset forms, bar support, shoring, post shores, Stud Rail, Staybox, tilt-up hardware, precast hardware and pipe braces. With locations in Chicago, Tampa, Houston and Los Angeles, SureBuilt supplies independent dealers and their contractor customers throughout North America.
Booth number: 107 | Learn more about SureBuilT Concrete Forms & Accessories >
TRACK SPONSOR - IconX, LLC
ICONX LLC produces and distributes the IconX Shear Connector line. With a new 5"- 6" connector being introduced to the family this year, we are now able to support you on projects with insulation thickness from 2" all the way up to 6" and everything in between, making IconX the smart choice for your high performance insulated wall panels. The foundational goal of the IconX System was to develop a shear connector to make insulated wall panels longer, stronger, and stiffer than previously available. It was also important for the connector to work with any rigid insulation in panels reinforced with mesh or rebar. Due to the composite action that the IconX Shear Connector facilitates between the wythes of concrete, the total concrete thickness can be reduced by 3 to 4 inches over conventional non-composite panel design, saving you material costs and potentially reducing your crane size and footing and foundation sizes. Simply put, we can do more for less. We are committed to helping you have a successful project with us. Contact us by phone or email, or come meet us at the TCA show to discuss what we have to offer.
Booth number: 315 | Learn more about IconX, LLC >
TRACK SPONSOR - IconX, LLC
ICONX LLC produces and distributes the IconX Shear Connector line. With a new 5"- 6" connector being introduced to the family this year, we are now able to support you on projects with insulation thickness from 2" all the way up to 6" and everything in between, making IconX the smart choice for your high performance insulated wall panels. The foundational goal of the IconX System was to develop a shear connector to make insulated wall panels longer, stronger, and stiffer than previously available. It was also important for the connector to work with any rigid insulation in panels reinforced with mesh or rebar. Due to the composite action that the IconX Shear Connector facilitates between the wythes of concrete, the total concrete thickness can be reduced by 3 to 4 inches over conventional non-composite panel design, saving you material costs and potentially reducing your crane size and footing and foundation sizes. Simply put, we can do more for less. We are committed to helping you have a successful project with us. Contact us by phone or email, or come meet us at the TCA show to discuss what we have to offer.
Booth number: 315 | Learn more about IconX, LLC >
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Tilt-Up Concrete Association (TCA)
PO Box 204
402 1st Avenue SE
Mount Vernon, IA 52314
United States
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About the Tilt-Up Concrete Association
Founded in 1986, the Tilt-Up Concrete Association (TCA) strives to improve the quality and acceptance of site-cast Tilt-Up construction - one of the fastest growing industries in the United States, combining the advantages of reasonable cost with low maintenance, durability, speed of construction and minimal capital investment. Over 10,000 buildings, enclosing more than 650 million square feet, are constructed each year using this construction method.
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