Archive for the ‘HJ3 Civil’ Category

Water Infrastructure Innovations in California:

Southern California’s Groundwater Replenishment Systems Water Infrastructure – Orange County Water District’s (OCWD) Groundwater Replenishment System (GWRS) is a leader in recycling water and providing potable, drought-proof water in an economical and environmentally sound way. Located in southern California’s semi-arid region, Orange County is home to about 3,000,000 people with projected growth of more than 300,000…


Bridge Pile and Truss Repair

For this bridge and pile repair project, HJ3 repaired and strengthened a bridge that had 93 concrete piles and 2 reinforced trusses in need of repair and strengthening. HJ3’s patented products were used to repair and strengthen the piles 10 feet above and 5 feet below the waterline. Watch the video on our Facebook site  …


The State of Dams in the US

Written by: Elizabeth Rosenberg There are 87,359 Dams in the US. Their average age is over 53. Many are in need of repair and are considered to pose a high or significant hazard potential. Many communities are located downstream of dams.


1 in 10 Bridges

Artwork by: Marcia Broderick – Written by: Elizabeth Rosenberg   © Copyright HJ3 Composite Technologies


Oil & Gas Pipelines

The U.S. Oil and Natural Gas Pipeline Network Spans Over 2.6 Million Miles – The Network’s Pipelines Include:
Over 1,500,000 miles of natural gas transmission and distribution 151,423 miles of crude oil and product


California and Arizona Bridges

National Oceanic and Atmospheric Administration’s Climate Prediction center, this year’s El Nino event is “significant and strengthening,…


Carbon Fiber Recycling

By Elizabeth Rosenberg Senator Cantwell of Washington recently proposed the Carbon Fiber Recycling Act of 2015, a bill calling for further development of carbon fiber recycling. The bill requests that U.S. Department of Energy study the technology, lifecycle, and economic impact of recycled carbon fiber, while working with automotive and aviation industries in developing a…


HJ3 Testimonial – Commercial Building Reinforcement

Commercial high rise buildings began using Glass Fiber Reinforced Concrete (GFRC) panels as façades in the early 1970’s. These panels are thin and lightweight compared to traditional pre-cast concrete panels, which decreases superimposed loads on the building. The GFRC facade panels were constructed with a long span that flexed significantly under wind loads causing severe…


Carbon Fiber Seismic Upgrade

Application Details Due to their ever-active fault lines, many California buildings are undergoing seismic upgrades to prevent potential damage and injury from earthquakes. In fact, the Mandatory Soft Story Retrofit program, which was created in 2013 by the Department of Building, mandates that “all older, wood-framed, multi-family buildings in San Francisco with a soft-story condition” be…


Parking Garage Column Restoration

Parking garages are subjected to regular vibrations from vehicles and people passing through. Over time, these vibrations cause tiny cracks in the garage’s concrete supports. Freeze-thaw cycles, as well as moisture and oxygen penetrating the concrete, corrodes the structures and reinforcing steel within. In this case, a parking garage at a federal building required crack…


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