ACI Certification

Ultra High Performance Concrete (UPHC) describes a class of concrete material with a unique set of properties including: Strengths of 21,000 ksi plus, high ductility, low permeability and rapid strength gain. With these unique material properties, UHPC facilitates short development lengths, thin overlays and the potential for further development in optimized prestress girders for longer spans with less material. UHPC continues to play an important role in Accelerated Bridge Construction serving as the connecting material between precast elements allowing for small joints with short lap lengths while obtaining full connectivity between the elements. This presentation will introduce the audience to UHPC, the basic material properties, applications and lessons learned.

The presenters will be Travis Konda (Senior Technical Advisor at HNTB) and Mario Ratnaraj (Bridge Engineer at HNTB)

Now in its second year, the Sustainable Structures Webinar Series was developed cooperatively in 2021 by cast-in-place and precast concrete associations from the Midwest region of the United States including Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, South Dakota and Wisconsin. The goal of the cooperative effort is to bring a greater awareness of the sustainable and resilient nature of concrete building systems to the design, construction, and development communities via quality continuing education programs.

Recognizing decorative concrete flatwork requires a higher attention to detail is critical for success.  This program will cover best practices for all facets of decorative concrete flatwork.  We will look at steps including pre planning, installation, sealing and maintenance, and how each impacts the end result.  The primary focus will be key steps installers and designers need to consider to control color and promote longevity.  The presenter will be Chris Sullivan (The Fenix Group).

This webinar was developed cooperatively by concrete-related associations from Minnesota, North Dakota, South Dakota and Wisconsin.  The goal of the cooperative effort is to bring a greater awareness of cast-in-place concrete to the design and construction communities via quality continuing education programs.

For many years, FRP reinforcing bar has been used internationally in areas where steel is not suitable. Many of the structures relied on the use of ACI Design Guides. This presentation will discuss international infrastructure projects where the risk of corrosion of reinforcing bar was the primary reason to select GFRP reinforcing bar as a suitable reinforcement material. It discusses the important differences in the supply chain between steel and FRP reinforcing bar that should be considered by the contractor or purchaser. It also covers the cost-effectiveness of the solution and the advantages that were gained. The presenter will be Antonio Nanni, PhD, PE, FACI (Professor of Civil Engineering & Inaugural Senior Scholarat the University of Miami)