Engineers validate San Francisco plan to support sinking tower | Crews complete massive concrete casting in Mass. | Concrete placed on Maine hotel foundation
September 13, 2019
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Engineers validate San Francisco plan to support sinking tower
Engineers validate San Francisco plan to support sinking tower
(Justin Sullivan/Getty Images)
An independent engineering review team approved plans by the San Francisco Department of Building Inspection to shore up the sinking Millennium Tower. Pending permits, work is expected to start early next year on the $100 million proposal, which calls for a perimeter pile upgrade that will shift some of the building's weight to bedrock from its existing foundation.
Engineering News-Record (9/11) 
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Crews complete massive concrete casting in Mass.
John Moriarty and Associates recently combined efforts with G&C Concrete to place 8,000 cubic yards of concrete in 13 hours for a $215 million project in Massachusetts. The concrete placement at Cambridge Crossing on Sept. 7 is believed to be the largest continuous concrete casting in New England.
Engineering News-Record (9/11) 
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Concrete placed on Maine hotel foundation
Concrete will be placed next week on the wall footings as the foundation to the Lockwood Hotel in downtown Waterville, Maine. The 11-foot high basement walls will consist of vibrated concrete to eliminate pockets of space inside the wall forms.
Kennebec Journal (Maine) (9/12) 
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Better Disaster Planning w/ BIM Software
Natural disasters & severe weather pose significant threats to infrastructure and public safety. Download the whitepaper to learn about how BIM can be instrumental in planning before, during & after natural disasters and emergency situations.
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Technology & Trends
Shrinkage minimal in pastes with superabsorbent polymers
Ghent University researchers in Belgium have studied approaches for autogenous shrinkage in cement pastes with superabsorbent polymers. The study found a miniscule difference between strains when the final setting time and the transition point were taken as time-zero.
MDPI (Switzerland) (9/12) 
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Column: Digitizing concrete placement at job sites saves time
Among Charity Newsome's tips for contractors to maximize the value of digitization is to coordinate the timing of truck deliveries at a concrete placement job site so trucks arrive in proper sequence at the right time. Other tips include reducing truck idling times by not waiting for paper tickets and eliminating the need to place and track orders by phone.
Construction Business Owner (9/12) 
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Sustainability & Green Building
Marines, engineers build 3D concrete bunker
The Marine Corps Systems Command and the US Army Corps of Engineers collaborated on the construction of a 3D printed concrete bunker at a research lab in Champaign, Ill. In the concrete 3D printing, the marines and engineers increased the print nozzle to three inches, which allows larger structures to be built faster and with less waste.
3D Printing Industry (UK) (9/10) 
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Salt Lake City affordable housing building uses net-zero approach
Salt Lake City's Project Open is a six-story, solar-powered building with 112 one-bedroom rental units set aside as affordable housing. Individual heat pumps provide heating and cooling for each unit, with a supplemental resistance heating system also providing warmth during winter.
Building Design + Construction (free registration) (9/10) 
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Leadership & HR
Clear responsibilities make accountability easier
Accountability begins by defining shared responsibilities and behaviors that are expected of leaders and employees, writes Dan Rockwell. "Approach accountability as a process, not an event at the end of a project," he writes.
Leadership Freak (9/3) 
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Policy Watch
Canada group forms concrete certification program
The British Columbia Construction Safety Alliance teamed up with industry and labor groups to initiate North America's inaugural certification program for concrete pump operators. Certification will include both a practical and written safety exam and must be renewed every five years.
Daily Commercial News (Ontario) (9/12) 
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ACI News
Concrete Industry Management program seeks donations
The Concrete Industry Management program -- a business intensive program that awards students with a four-year Bachelor of Science degree in Concrete Industry Management -- is seeking donations for their 2020 CIM Auction to be held at World of Concrete. The auction is scheduled for Wed. Feb. 5 at the Las Vegas Convention Center.
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