October 17, 2017

October Dinner Meeting

Alaeden Jlelaty presented on the NYC Second Avenue Subway Tunnel Expansion project completed by Skanska USA Civil. With a contract value of over 375 million, the project entailed the excavation of two tunnels under 2nd avenue using a Tunnel Boring Machine (TBM), 800 LF of Slurry walls, 800 LF of secant walls, special bracing, and rock blasting. We also got some insight into just how many utilities are buried in the streets of Manhattan!

September 29, 2017

2017 Golf Outing

We held our 24th Annual Golf Outing on Friday, September 29th, 2017 at Rock Manor Country Club.  The weather turned out to be beautiful as almost 90 golfers attended our outing.  Great gifts and raffle prizes were distributed.

June 09, 2017

Summer Social

Lehigh Valley Clay Shoot

May 23, 2017

May Dinner Meeting

Chemical Cleaning and Protection of Masonry presented by Steve Long of Prosoco. 

Steve's presentation reviewed the four reasons for masonry cleaning and four levels of masonry contaminants while providing three basic techniques for restoration cleaning. The presentation also identified four types of restoration cleaners, reviewed the considerations for interior cleaning and difficulties common to restoration cleaning.

April 18, 2017

April Dinner Meeting

Sustainable Concrete Repairs Using Concrete Protection Systems & Testing presented by Peter DeNicola of Evonik

Peter's presentation reviewed of the corrosion process of concrete reinforcement steel and helped attendees understand the available protective measures to prevent corrosion for new construction. The presentation also reviewed remediation techniques to mitigate active corrosion on existing structures while also providing education on learning how to evaluate remediation methods and their life cycle costs.

March 17, 2017

2017 ICRI Spring Convention in Montreal

Thank you to all of our members who attended the 2017 ICRI Spring Convention in Montreal!

February 21, 2017

What is wrong with my Precast Concrete Parking Garage?

At our February 2017 Dinner Meeting, Lawrence Keenan of Hoffman Architects presented an analysis of fatigue failure of precast double-tee connections due to high cycle vehicular loading to a packed house. The presentation included an in depth look at why welded tee-to-tee flange connections are poorly configured to withstand high-cycle vehicular loading and violate Building Code requirements for fatigue resilient design. Attendees learned how to identify fatigue failures and examine Building Code requirements and industry standards as they apply to high-cycle fatigue performance of commonly used details. Parameters discussed included connection configuration, cycle analysis, weld type, effective weld size, Allowable Stress Range, Stress Category, crack initiation point, and allowable design capacity. The most commonly used connection detail, consisting of fillet welds on a flat erection bar, was analyzed to demonstrate application and implications of AWS and AISC Code provisions. Scanning electron micrograph images of fractured welds were analyzed to demonstrate fatigue failure mechanism. Consequential effects of fatigue failure and considerations for optimized fatigue-resistant connection design were also discussed.

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