In addition to the three-hour seminars at World of Concrete, producers will also find the 90-minute sessions valuable. Topics include general business, leadership and management, safety, technology for construction, and green building.

Here are summaries of the seminars at World of Concrete that will be of special interest to producers:

MO-59 Mix Designs for Decorative Concrete
Jan. 21, 8-11 a.m.
Speaker: Calvin McCall, Concrete Engineering Specialists

Producers using a structural concrete slab-on-grade mix for decorative concrete may experience problems producing clean stamp imprints or creating the right surface texture. Learn how to design concrete mixes to provide adequate paste content, and select a suitable aggregate size for decorative concrete. Also, find out how coloring admixtures affects fresh and hardened concrete properties and the best methods for producing uniform colored concrete.

MO-60 Self-Consolidating Concrete
Jan. 21, 1-4 p.m.
Speaker: Richard Szecsy, Lattimore Materials Co.

Self-consolidating concrete (SCC) is a radical departure from what the industry believes concrete can and cannot do. As a result, many contractors, producers, engineers, and owners have the opportunity to take advantage of SCC. This seminar will explore its design, costs, placement, QC/QA, and fundamental technology critical to achieving success. Learn how to incorporate SCC into your business, with case examples of successes and failures.

MO-61 Using Chemical Admixtures to Achieve Better Concrete
Jan. 21, 1-4 p.m.
Speakers: Bill Phelan, The Euclid Chemical Co.; Jack Gibbons, Concrete Reinforcing Steel Institute (CRSI)

Proper use of chemical admixtures can improve your concrete by providing high early and ultimate strengths, durability, reduced shrinkage, and ease in placing and finishing. This presentation will describe the basics of chemical admixtures and present successful projects using multi-admixture, engineered mixes. See how potential problems can be solved, and discover why many high- performance mixes contain several admixtures.

TU-62 Impact of Cement on Properties of Concrete
Jan. 22, 8-11 a.m.
Speaker: Michelle Wilson, Portland Cement Association

By looking at both cement and concrete, participants will gain a better perspective on how to troubleshoot concrete field problems, and discuss the influence of cement on fresh concrete properties, hardened concrete properties, and durability. We'll look at workability, water requirements, slump, rheology, setting time, bleeding, admixture compatibility, heat of hydration, strength issues, shrinkage, and air content.

TU-63 Air-Entrained Concrete
Jan. 22, 8-11 a.m.
Speaker: Ken Hover PhD, Cornell University

This session will provide an evaluation of concrete mixtures, along with practical information on what air entrainment is all about. Attendees will learn how to combine admixtures with good construction practices to improve concrete. Discussions will cover the importance of air bubbles, measuring them, controlling the number of air voids, and testing for freeze-thaw durability.

WE-64 Adding Water on Site: To Add, or Not to Add?
Jan. 23, 8-11 a.m.
Speaker: Michelle Wilson, Portland Cement Association (PCA)

Should you add water onsite? ASTM and other building codes allow for it. Many times circumstances reduce the workability of concrete. Learn about the effects of adding water to concrete at the jobsite, including its impact on consistency, set time, and strength. We will also discuss water-to-cement ratio, testing, and chemical admixtures.

TH-65 Concrete Mix Design Part I: Evaluation of Mixtures
Jan. 24, 8-11 a.m.
Speaker: Ken Hover PhD, Cornell University

Part I of this two-part series covers how the cement, water, and aggregates interact in a concrete mix. Attendees will follow a mix design through the submittal process and learn how to review a proposed mix for yield, expected strength and durability, shrinkage, workability, and cost. Part II covers investigating aggregate gradation effects and admixtures.

FR-66 Concrete Mix Design Part II: Adjusting with Aggregates and Admixtures
Jan. 25, 8-11 a.m.
Speaker: Ken Hover PhD, Cornell University

Part II of the series focuses on how aggregate size and gradation, water reducers, superplasticizers, fly ash, microsilica, and slag affect concrete properties. Learn how to properly apply aggregate moisture corrections and gain insight into the quality control provisions of the ACI 318 Building Code. Valuable specification compliance checklists and adjustment worksheets will be discussed and analyzed.

Visit our World of Concrete page for more details about these and other seminars at the show.