- Presenters:
- Stephen Lucy
- Duration:
- 49 Minutes
- Format:
- Audio and Video
- License:
- Access for 6 month(s) after purchase.
- Short Description:
- Dallas City Hall and Plaza are recognized by many due to the opening scenes of Dallas, the television show. What is less known is that the structure is a significant early example of bonded post-tensioned concrete which was utilized throughout the superstructure and two-story parking garage constructed beneath the plaza. Opened in 1977, the parking garage is a two-way bonded post-tensioned concrete slab with unreinforced drop panels supported by flared circular concrete columns. The garage covers two city blocks, extends under two adjacent multi-lane streets, and supports mature landscaping, pool, fountain, and up to 11’-0” of soil. In 2017, several square feet of a drop panel fell from the structure and subsequent observations found multiple locations of drop panel and column capital failures. A structural investigation including destructive and non-destructive testing, and analysis of the existing structure was undertaken to determine the cause of the failures.
- Price:
- $15.00 - $25.00
- Presenters:
- Dr. Ali Abu Yousef | Michael Ahern
- Duration:
- 47 Minutes
- Format:
- Audio and Video
- License:
- Access for 6 month(s) after purchase.
- Short Description:
- After only six years of service, a 6-foot long narrow piece of concrete spalled off an exposed slab edge of a 680-foot tall high-rise in Texas, and fell 160 feet to the podium below. The spall was attributed to premature corrosion at the drip edge. The building featured approximately 9,200 feet of exposed slab edge over its height. Given the potential risk to safety and property of additional concrete spalls, the Owner requested forensic investigations, which (1) identified other areas with signs of similar distress and (2) determined the underlying problem of low reinforcement cover at the drip edge was pervasive. In response, repair options were developed to address the problem and restore intended durability. Given the building height, difficult exterior-only access, downtown environment, and post-tensioning anchors along the slab edge, the repair design and construction both had unique challenges to consider and overcome.
- Price:
- $15.00 - $25.00
- Publication Date:
- Jan 01, 2021
- License:
- Short Description:
- ACI and ICRI have published an updated “Guide to the Code for Assessment, Repair, and Rehabilitation of Existing Concrete Structures, A Companion to ACI 562-19.” This guide provides the licensed design professional with the knowledge, skill, and judgment to interpret and properly use ACI 562-19, and provides insight into the use and benefits of the code for contractors, material manufacturers, building owners, and building officials.
- Price:
- $79.00 - $129.00
- License:
- Short Description:
- Purchase publication Code Requirements for Assessment, Repair, and Rehabilitation of Existing Concrete Structures and Commentary (ACI 562-19) and publication Guide to the Code for Evaluation, Repair, and Rehabilitation of Concrete Buildings (562MAN-20) together. Hard copies only.
- Price:
- $131.00 - $214.00
- Presenters:
- Mr. Peter Craig
- Duration:
- 1 hour
- Format:
- Audio and Video
- License:
- Short Description:
- Moisture coming from, or through a concrete floor slab, can lead to conditions that are damaging to floor coverings, coatings, the building’s environment, and the ability to store moisture sensitive products directly on a floor slab. In this webinar, attendees will learn where potentially damaging levels of moisture come from, how moisture migrates, and what design measures are an absolute necessity to minimize the risk of moisture-related problems.
- Price:
- $10.00 - $40.00
- Presenters:
- Mr. Peter Craig | David L Paal | Scott Michael Tarr | Adam Bakeman
- Duration:
- Five 1-hour webinars
- License:
- Short Description:
- Moisture-related problems with floor coverings and coatings are a serious and costly issue. Each year the direct and in-direct costs associated with such problems amount to billions of unplanned dollars. In this 5-part webinar series, experts in the field of moisture in concrete, testing, mitigation and repair will share information and experience in a ground up approach to the causes and solutions to such problems. The program covers the sources of moisture in concrete, the affect moisture has on slab behavior and the installation of flooring materials, the test methods used to properly assess slab moisture condition, moisture mitigation strategies, and more.
- Price:
- $75.00 - $120.00
- Presenters:
- Scott Michael Tarr
- Duration:
- 1 hour
- Format:
- Audio and Video
- License:
- Short Description:
- Concrete is one of the most versatile building materials in the world and can produce floor slabs that provide an excellent platform for floor coverings and coatings. Water is an essential component of every concrete mixture. Without it, concrete is not workable and finishable. If water is not used, the cement in the mixture cannot hydrate and gain the required strength. However, once placement, finishing, and curing is complete, remaining moisture in the concrete can adversely affect the installation of flooring materials and the behavior of the slab itself. This webinar will discuss the importance of water in a concrete mixture and review a few concrete problems that water can cause, such as shrinkage, curling, ASR, delamination, dusting, and scaling. In addition, attendees will learn the design and construction considerations that can be used to minimize the potentially adverse effects of moisture in concrete.
- Price:
- $10.00 - $40.00
- License:
- Short Description:
- This guide specification aids the Design Professional in the preparation of technical specifications for inclusion directly into a project manual for the construction of cementitious bonded overlays that are in line with the state-of-the-art materials and methods used in the concrete repair industry. The document provides an outline for developing the three parts of the specification through suggested text, references, and commentary for evaluating alternatives. This specification section must be used with ICRI 110.1, Guide Specifications for Structural Concrete Repairs. Both the printed and PDF copies include a Word document with hidden text for easy modification of text to meet specific cementitious bonded overlay project requirements. PDF version is free to ICRI members when ordered online.
- Price:
- $0.00 - $80.00
- Publication Date:
- Mar 26, 2021
- License:
- Short Description:
- This guide specification aids the Design Professional in the preparation of technical specifications for inclusion directly into a project manual for the construction of cementitious bonded overlays that are in line with the state-of-the-art materials and methods used in the concrete repair industry. The document provides an outline for developing the three parts of the specification through suggested text, references, and commentary for evaluating alternatives. This specification section must be used with ICRI 110.1, Guide Specifications for Structural Concrete Repairs. Both the printed and PDF copies include a Word document with hidden text for easy modification of text to meet specific cementitious bonded overlay project requirements. PDF version is free to ICRI members when ordered online.
- Price:
- $40.00 - $80.00
- Presenters:
- David L Paal
- Duration:
- 1 hour
- Format:
- Audio and Video
- License:
- Short Description:
- Testing moisture in concrete doesn't need to be complicated. Five (5) currently recognized ASTM test protocols for testing concrete slabs for moisture will be explained using the "How and Why" perspective while providing the proper, yet basic, scientific context behind their usage.
- Price:
- $10.00 - $40.00
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