FIND A CONTRACTOR BUYER'S GUIDE
BECOME AN INDUSTRY PARTNER
MCAA Logo
MEMBER LOGIN JOIN
NEWS
World of Concrete 2026 Registration Is Open ↗

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.
 0
Chairman’s Message: VALUE IN REVIEWING OUR YEAR
December 2025

My father used to have a way of teaching me lessons by purposefully not intervening when I struggled. He thought if I felt at least a little of the pain of a potentially bigger mistake, I’d come out of it wiser and more prepared for the next time. He woul

Dick Dentinger
Chairman’s Message
Read More
Outreach Outlook: A Year of Momentum and Building Our Future Together
December 2025

As 2025 draws to a close, it’s a natural time for reflection. This month marks a personal milestone for me, my one-year anniversary as the National Director of Youth Outreach & Education. What an incredible year it has been for the newly established Outre

Robert Melgaard
Outreach Outlook
Read More
GEN NXT: Logan Sullivan
December 2025

This month, the MCAA got to talk to Pennsylvania native Logan Sullivan. A young mason starting out in the industry whose enthusiasm for the craft of bricklaying is evident. His passion and genuine love for the craft could be felt throughout the interview,

Justin Stengel
GEN NXT
Read More
The 2026 Masonry Innovations
December 2025

Be the first to know what's to come in the new year! The masonry industry is always advancing, from new material color-ways to brand new technology, see what our MAP Members are bringing to the table in 2026!

Justin Stengel
Industry News
Read More