Up, up and away!

Words: Jeff SpeckPump lightweight concrete 54 stories, straight-up, successfully!

Well, that's exactly what Ozinga Chicago, the concrete provider for a 54-story project on Lake Street in Chicago, did. The company used Riverlite® expanded clay lightweight aggregate from Trinity Lightweight and they were pleased. According to Scott Kelly, Ozinga's Assistant Manager of Quality Control, "Everything has gone pretty smoothly and according to specification."

The lightweight concrete used in this project was a Self-Consolidating Concrete (SCC) using a high-range water-reducing admixture and three other chemical admixtures as well as Class C fly ash. Additionally, steel fiber was added at a rate of 35 pounds per cubic yard. The mix design provided concrete that was fluid enough at the pump discharge to spread without vibration.

Have a look at how this Chicago project went together and see how Trinity Lightweight and Ozinga Chicago worked together to make it a success. When you need to pump structural lightweight concrete to great heights to meet strength and fire resistance requirements, I hope you will think of Trinity Lightweight.
About: Featured
 0
STABILA Tools: Engineered for Professionals Worldwide
June 2025

With a history spanning over 100 years, STABILA has firmly established itself as a trusted name in precision and durability. Known for crafting tools that stand the test of time, STABILA has become the standard for long-lasting performance. Today, the bra

Elsa Bueno
Featured MAP Partner
Read More
Check out CrewTracks' Latest Innovations
June 2025

In today's masonry industry, the right tools are essential for efficient operations. At CrewTracks, we're constantly innovating to provide masonry contractors with the solutions they need to thrive. We're excited to offer a sneak peek at some of our newes

Erin Laird
Featured MAP Partner
Read More
The Importance of Durable Safety Footwear on Masonry Jobsites
June 2025

Masonry work is a rewarding trade that relies on precision, strength, and skill. However, it also comes with its share of risks. From handling heavy materials like bricks and concrete blocks to navigating rough, uneven surfaces, masonry jobsites present n

Andrew Moffatt
Featured MAP Partner
Read More
OSHA’s Proposed Heat Stress Standard
June 2025

The goal of OSHA is to work tirelessly to keep us, the workers, as safe as possible as we go about our jobs every day. According to the statistics that the Bureau of Labor Statistics provides, a staggering 479 workers died from heat stress from 2011-202

Justus Everett
Featured
Read More