By: Mason Guarino
The Duck Island Clean Water Facility, located in Lowell, MA, is a 32 million gal./day (120 megaliter/day) activated sludge treatment plant. The facility accepts wastewater from several Massachusetts cities and towns, including the City of Lowell and the towns of Chelmsford, Dracut, Tewksbury, and Tyngsborough. The service area includes approximately 220,000 people. The facility has been in the news for the past decade due to its need for massive repairs
By: Beat Huesler
For the Ayla Golf Academy and Clubhouse in Aqaba, Jordan, Oppenheim Architecture took inspiration from the surrounding landscape and Bedouin tradition to deliver a distinctive building that evokes the aelemental beauty of the desert and mountains. The design amakes innovative use of shotcrete to create a continuous
By: Adam Dobrowolski and Deane Hudson
In our lives, we seldomly look back and say, “that was a very cool project.” This is one of those projects because aof the challenges we faced from the start. Poor access, intricate finish, difficulty in formwork, concrete chemistry, and protection of the existing exterior façade were all challenges of the Uber Mission Towers Project.
By: American Shotcrete Association
The 14th annual Carl E. Akeley Award was presented to William Clements and Kevin Robertson, King Packaged Materials Company, for their article, “Compatible Shotcrete Specifications and Repair Materials,” published in Shotcrete magazine, Spring 2019. This article discusses how shotcrete is used for concrete repairs with correct test methods and using the right shotcrete material to provide a long service life.
By: American Shotcrete Association
The ASA President’s Award was established in 2005 to recognize a person or organization that has made exceptional contributions to the shotcrete industry. It is the sole responsibility of the immediate outgoing President of ASA to select the recipient of this award. Since 2006, 13 well-deserving individuals and one organization have been awarded the ASA President’s Award, all of whom dedicated their time and energy to advancing the shotcrete industry
By: Raul Bracamontes
This is Part One of a two-part series on potential causes of problems in concrete and shotcrete.
By: Mick Haggerty
Oroville Dam, built in 1957, is an earth-filled embankment dam located on the Feather River, east of the city of Oroville, CA, in the Sierra Nevada foothills east of the Sacramento Valley.
MAPEI?s Underground Technology Team (UTT) provides the construction market with a range of products dedicated to underground construction work.
By: Lawrence Klein
The uniqueness of the David Geffen Theater and the May Company building, the Saban Building, dates back to 1939.
By: Jamie Curtis and Yann Curtis
The Northeast Community Skatepark in Frisco, TX, is a destination-scale, all-wheeled sports facility catering to skateboards, bikes, inline skates, and scooters.
By: Ashley Cruz
The Queens Midtown Tunnel (QMT) is a twin-tube, tolled, four-lane highway that serves over 90,000 vehicles each day.
By: John Becker and Randle Emmrich
As part of the DC Clean Rivers Project ? Division 1 Main Pumping Station Diversions, the Tiber Creek trunk sewer was designated to receive a new structural liner in a 122 ft (37 m) section near the intersection of New Jersey Ave. and Tingey St. in southeast Washington, DC.
Flooding is a temporary overflow of water onto land that is normally dry. Floods are the most common natural disaster in the United States.
By: Ray Schallom III
Decades ago, a seasoned carpenter showed me how to tie 2x4s and reinforcing bar together so I could lower it down a shaft without losing the load.