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March Technical Meeting – Polyurethane Grouting & Cellular Concrete


Presentation Topic: Polyurethane Grouting & Cellular Concrete

Registration: Registration for this event is now closed.

This will be a hybrid-style meeting (virtual and in-person). This month the speaker will be in-person. Virtual attendees will still be able to interact with the speaker through the chat window to ask questions.

Abstract: This session will cover:

  • Traditional Fills
    • Why Traditional Fills Fail!
  • Polyurethane Grouts and Cellular Concrete Overviews
    • What is Cellular Concrete?
      • Lightweight Fill for:
        • An alternative to Ground Modification
        • Lateral & Axial Load Reduction
        • Embankments/Retaining Wall Backfill
        • Undercutting unsuitable soils and filling excavations
        • Deep foundation alternative
    • What is Polyurethane Grout?
      • Lightweight Grouting for:
        • An alternative to Cementitious Grouts
        • Stabilizing and Lifting Roadways & Bridge Approaches
        • Culvert, Pipe, Seawall & Sinkhole Repair
        • Lifting Concrete Slabs & Void Filling
  • Material Compositions & Physical Properties
    • Density & Strength/Material and Time Reduction
  • Production
  • Project Profiles
  • Specifying Polyurethane Grouts and Cellular Concrete
  • Questions & Answers

Presenters: Kirk Roberts and Brian Bucek, PE

Kirk Roberts – Vice President of Preconstruction, CJGeo, is the Vice President of Preconstruction at CJGeo, a lightweight and chemical specialty grouting contractor. Mr. Roberts focuses on special projects, most of which involve addressing unanticipated challenges in the underground & civil markets with chemical and cellular grouts. From solving a 25MGD mine infiltration problem to stabilizing shafts that are sinking, not being sunk, the more unique, the better.




Brian Bucek, PE – Geotechnical Engineer, CJGeo, is a Professional Engineer in the Commonwealth of Virginia and CJGeo’s in-house Geotechnical Engineer for Preconstruction. Brian worked as a geotechnical engineer consultant for over 15 years prior to joining CJGeo in May 2022. His current duties include performing engineering calculations for bearing, buoyancy, settlement, and lateral pressure considerations; and review and oversight of third-party laboratories performing unconfined compression testing on CJFill cellular concrete.



Thank you to our sponsors CJGeo!

When: Thursday, March 21st, 2024
11:45 AM -12 PM – Sign in and Networking
12 PM -1PM – Presentation

Where: 2810: a community gathering place, 2810 W Cary St, Richmond, VA 23221
(Reserved parking spaces on both sides of building and in gravel lot located through gate)

(Virtual attendees will receive a Teams Meeting)

Registration Price: 
In Person Members: $25 members
In Person Non-Members: $30
In Person Late Ticket: $30
Virtual Individual: $10
Virtual Conference Room: $40*

*For viewing as a company group; as professionals we expect attendees to purchase this option when group sharing rather than as an individual ticket.

Lunch is included with purchase of an in-person ticket (Local Carytown Favorites)

PDH: 1.0 HR