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Section: Concrete > Foundations & Walls
Business
Reap the Benefits of Membership at the CFA Summer Meeting
Membership in the Concrete Foundations Association offers valuable resources and support to help you run your business.
July 19, 2014
Equipment
Demolishing Minnesota's Metrodome
Using a Volvo high reach excavator, a Minneapolis-based contractor brought down the 900,000 sq.-ft. structure, recycling 80% of the materials and debris
July 16, 2014
A Volvo EC480D high reach excavatorwas used for reaching up and pulling all chairs and debris down to the field level. Once the project was completed, the boom was removed and the machine was fitted with a conventional stick for processing and load out work.
Concrete Equipment & Products
70-foot-long Concrete Bridge Survives Series of Simulated Earthquakes
University of Nevada, Reno’s new Earthquake Engineering Lab hosts multiple shake-table experiments
July 16, 2014
University Of Nevada Earthquake Simulation Hrel Large
Business
New Bridge Design Helps Speed Construction, Resist Earthquake Damage
Researchers developed a new bridge design for the framework of support columns and beams that can improve earthquake resistance and faster on-site construction
July 10, 2014
This graphic illustrates a new design for the framework of columns and beams that support bridges to improve resistance to earthquakes and faster on-site construction. The faster construction is achieved by prefabricating the columns and beams off site and later erecting and connecting them quickly at the construction site.
Concrete
Warehouse Uses Freestanding Tilt-up Concrete Panels in Non-traditional Ways
Large wing wall concrete panel extensions at the building steps are finished to resemble cast-in-place concrete
June 30, 2014
Elements of the Metropolitan Van & Storage building create a visual dialogue of parts which effectively dispels the mass of the overall building, ensuring that the building achieves a facade that is geometrically modern, sculptural in composition and sympathetic to the human scale.
Concrete
Contractor Uses Tilt-up Concrete to Convert Reinforced Masonry Church to a Concrete Structure
Houlihan Construction converted Saint Mary Coptic Orthodox Church using 95 tilt-up concrete panels plus a full concrete dome
June 9, 2014
Saint Mary Coptic Orthodox Church presents an old world theme using the adaptability and strength of tilt-up construction.
Concrete Equipment & Products
Prinsco PROFORM Pipe System
Prinsco Inc.
June 6, 2014
Prinsco Proform Photo Cmyk 11508038
Concrete
CFA - "Moving Toward Profitability"
June 2, 2014
Concrete Forms
Formwork Mortar Leakage
American Society of Concrete Contractors (ASCC)
A concrete contractor recently had a close-out meeting with the Owner and Construction Manager, and was be surprised by the demand for a reduction in payment based on form leakage.
May 30, 2014
Figure 1 Fins and offsets can be the result of form leakage. But fins and offsets have tolerances as described in ACI 117 and ACI 301. Fins and offsets are allowed but the height of each is controlled by the tolerances. If form leakage were prevented, there should be no tolerances. The fact that the tolerances are included in both ACI 117 and ACI 347 means that form leakage is acceptable but is limited by these ACI documents.
Concrete Equipment & Products
Air-Shield Air/Vapor Barriers
W. R. Meadows Inc.
May 28, 2014
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Concrete Slipform Pavers
GOMACO Commander III Slipform Pavers Build Barrier Wall Within One Week
Contractor uses three GOMACO machines to remove and replace a concrete barrier wall on I-65 within a six-day time frame
May 19, 2014
JBI Construction had their entire company and three of their GOMACO slipform pavers at work on the project, including their four-track Commander III.
Home
Building the World's First Net-Zero Energy Lab
May 16, 2014
The JCVI facility consists of a three-story, 28,600-square-foot office wing and a single-story, 12,605-square-foot laboratory wing. The laboratory and office wings are perched atop the roof/podium deck of the partially below-grade parking garage.
Concrete
Visible Pour Lines – Are They A Problem?
What to do when customers worry the pour line is a crack in their new concrete.
May 16, 2014
Cfa Q A Jj 2 11465461
Concrete
Non-typical Tilt-Up Construction Methods Build New St. Louis Art Museum Building
Tilt-up concrete panels were ground and polished prior to erection in order to get a final finish looking similar to granite
May 12, 2014
Making the final finish of tilt-up concrete panels resemble granite required grinding 1/2 in. of material from the finished face and polishing of the panel prior to erection, highlighting the profile of the various specialty aggregates used.
Home
PASCHAL-Werk G. Maier GmbH
Kreuzbühlstraße 5
77790 Steinach
May 8, 2014
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Concrete Equipment & Products
House and Nature Connect
May 1, 2014
The 2014 CFA Grand Project of the Year: A Madison Gardenesque
Mini Excavators
Video: Bobcat E50 Digging Out a Concrete Wall
An hour's worth of work removing an old retaining wall compressed into 3:17 min. Interesting, instructional and fun to watch.
April 28, 2014
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Concrete
A Skilled Worker's Shortage
April 23, 2014
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