Category Archives: Commercial Concrete Contractors

The World’s Fastest Elevators and Longest Elevator Runs

      The Council on Tall Buildings and Urban Habitat (CTBUH) recently published a report in collaboration with the Guinness Book of World Records on the fastest elevators and the longest elevator run in skyscrapers.  It evaluates elevators in … Continue reading

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Concrete Solutions from a Full Service Provider

The Conco Companies initially started out as a concrete contractor but as our business expanded over the years, we have evolved into a full service provider to the construction industry.  We now provide a range of “concrete solutions” to our … Continue reading

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Tips for Finding the Best Commercial Subcontractor

  During our close to 60 years in the industry, The Conco Companies have learned a thing or two about the construction business.  Right from the start, our goal has been to provide customers with first-class services that are executed … Continue reading

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Our Most Important Asset – Our Employees

At The Conco Companies,  we firmly believe that our most important asset is our team of hard-working, dedicated employees.  We place the safety and health of our workforce above all else and are committed to providing them, along with our … Continue reading

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Key Ingredient in Concrete – Portland Cement

Portland cement is the most common type of cement and typically originates from limestone.  It is the key ingredient in concrete, mortar and stucco and used throughout the world.  When added to concrete, it is the paste that binds the … Continue reading

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Scientist Search for Clues to the Formula for Roman Concrete

One of the mysteries that continue to baffle scientists and engineers is how the ancient Romans produced the strongest concrete in the world.  Typically modern concrete buildings last about 50 to 60 years while ancient Roman concrete structures have survived … Continue reading

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Conco’s Portland Office is working on Several New Projects

The Conco Companies have recently opened a new office in Portland, OR.  While not new to the area as we have performed services for Portland from our facilities in Kent, WA, this is our first actual office in the city.  … Continue reading

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