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Section: Concrete > Foundations & Walls
Decorative Concrete
Repair Deteriorating Concrete Surfaces with W. R. Meadows' SPECTRUM RE-KOTE TF
W. R. Meadows Inc.
SPECTRUM RE-KOTE TF from W. R. Meadows is a single-component, polymer-modified, rapid-hardening, cementitious concrete repair mortar designed for renovating and resurfacing deteriorated concrete surfaces.
June 24, 2015
June 2015 2 558acb89800e4
Concrete Pumps
Putzmeister Pumps Hit a Sweet Note on Symphony Tower Concrete Placement
Putzmeister pumps perform special concrete placing feats for Symphony Honolulu high rise.
June 22, 2015
The end hose of a truck-mounted boom pump is tied directly into the pipeline below the pedestal that would deliver the concrete to the placing boom.
Business
First Horizontal Piece Placed for Tappan Zee Bridge Project
First horizontal piece was 400-ft. long, weighed 1,100-ton and consisted of three curved steel girders that were placed between two concrete piers
June 18, 2015
Concrete Equipment & Products
Building Deep Foundations
June 18, 2015
The new Science Building for George Washington University presented big challenges to both the engineer and the contractor. It is nestled into a very narrow space surrounded by three dormitories and the Washington D.C. Metro tunnel.
Concrete Thoughts
Revisiting the Arctic Passage Project
In the January 2015 issue of Concrete Contractor, we featured the Arctic Passage renovation project at the Henry Vilas Zoo in Madison, Wisconsin. The project is now complete and scheduled to open to the public on May 23, 2015.
May 21, 2015
A 175,000 gallon tank for the seals is part of the new exhibit at the Henry Villas Zoo. Contractors used No. 3 rebar and wire mesh to create the structures. The Nassal Company has been subcontracted to perform the theming work.
Business Services
FREE Download: Use and Re-use of Formwork: Safety Risks and Reliability Assessment
Researchers from Oregon State University, mapped the life cycle of vertical concrete formwork on three construction sites, and identified and evaluated the typical site environmental and operations impacts on formwork during its use and re-use.
May 14, 2015
Business
Five Contractors Team Up to Demolish Five Buildings in Atlanta Area
Atlanta Demolition worked with several other contractors to successfully and safely bring down five asbestos-filled concrete structures while working around multiple jobsite challenges
May 13, 2015
Prior to demolition, all structures required the removal of asbestos-containing materials. This was no small task, as the massive 19-story tower’s entire exterior was covered with asbestos- containing paint.
Business
Will New Nordstrom Tower Be NYC's Tallest SkyScraper?
Originally planned to top out at 1,775 ft. a new report says the skyscraper will be 1,795-ft. making it the tallest in NYC, the US and the Western Hemisphere
May 12, 2015
This image shows the future 57th Street skyline in New York City.
Concrete
Hydrodemolition Method Repairs Damaged Concrete at Working Rail Tunnel
Contractor uses hydrodemolition to selectively remove damaged concrete from tunnel walls while keeping one of two railway tracks operating during the project
April 20, 2015
Hydrodemolition with a Conjet Robot 365 was used to selectively remove the damaged and decaying concrete at record speed from the Biéreau tunnel just south of Brussels.
Concrete Equipment & Products
Acceptance of Tilt-Up Concrete Continues to Rise
April 15, 2015
The penetration of tilt-up into new markets continues to improve efficiencies. Advancements in lifiting and bracing technology have also fueled greater efficiency.
Concrete Equipment & Products
No Reason To Not Inhale
Concrete Foundations Association (CFA)
CFA says glass fibers in concrete pose no health risk; neither do they replace steel reinforcing for managing cracks.
April 15, 2015
The CFA continues to hear from homeowners regarding health concerns of fibers used in residential concrete. It should be identified to any homeowner the fibers added to concrete pose no health threat.
Decorative Concrete
How to Apply Concrete Dyes When Grinding & Polishing
Ameripolish Inc.
Learn the basics of dyeing concrete during the grinding and polishing process.
April 15, 2015
There are a variety of ways concrete dyes can be applied, however, typically a high-volume low-pressure (HVLP) sprayer is the best applicator.
Concrete Equipment & Products
Crews Prepare to Pour Concrete for 27 Consecutive Hours
Starting Friday, crews will be hauling 50 loads of concrete to the construction site of Northwestern Mutual Life Insurance Co.'s 32-story office tower in Milwaukee, Wisconsin for 27 consecutive hours to form the building's foundation.
March 25, 2015
Concrete Equipment & Products
"Damp Rising"
Concrete Foundations Association (CFA)
March 5, 2015
Concrete Equipment & Products
Building a Seaside Foundation on the Rock
Every year the Concrete Foundation Association (CFA), based in Mt. Vernon, Iowa, holds a contest to honor the best and most difficult foundation projects of the year.
March 5, 2015
Building the foundation for house on rock is no easy thing. Shown here are the footing pads and piers. Workers are beginning to form the concrete deck which will become the floor of the house.
Skid Steers
Construction News Tracker Video: Economic Recovery Sparks Biggest World of Concrete in Six Years
Much of the equipment news at World of Concrete had to do with emissions technologies, although not exclusively; plus more news from World of Concrete 2015 in the Feb. 19, 2015 edition of Construction News Tracker
February 18, 2015
Construction News Tracker Video: World of Concrete 2015 Special Report
Decorative Concrete
Kingdom Products’ Imperial Vertical Wall Mix
Kingdom Products
February 16, 2015
KPImperialVertWallMix 2219 54e24c5f1787d
Concrete Grinders & Scarifiers
Hydrodemolition Surface Prep Keeps Pittsburgh Liberty Tunnel Rehabilitation Project on Schedule
Hydrodemolition’s quick concrete removal and easy cleanup allow the contractors to work faster than with conventional concrete removal methods and avoid damage or cracking of the walls
February 9, 2015
On the Liberty Tunnel project, two Conjet 363 vertical robotic units performed partial depth, selective removal hydrodemolition on the tunnels’ vertical wall horseshoe profiles that have 14.5-ft. posted vertical clearance.
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