Category Archives: Concrete Contractors Bay Area

Prestressed, Pretensioned and Post-Tensioned Concrete

Prestressed, pretensioned and post-tensioned are methods used for reinforcing concrete. Experts define prestressed concrete as the process used to overcome concrete’s natural weakness in tension by introducing internal stresses to counteract the tensile stresses encountered in service. “The stress is … Continue reading

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The Aggregate in Concrete  

The Conco Companies offer a range of services that include quality concrete formwork, reinforcing, place and finish, and shotcrete.  We also own a fleet of construction hauling trucks and operate one of the largest pumping companies in the U.S.  Our … Continue reading

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Increasing the Tensile Strength of Concrete

The aggregate in a concrete mix effectively carries the compression load to make concrete strong in compression.  However concrete is weak in tension as the cement holding the aggregate in place is susceptible to cracking and can result in the … Continue reading

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How to Control Shrinkage and Cracking in Concrete

  All concrete experiences some degree of shrinkage that can affect its long-term strength and durability as well as result in cracks.  Since shrinkage is an inherent property of concrete, it is impossible to totally eliminate cracking but it can … Continue reading

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Our Commitment to Being a Responsible Leader

There is no question but that the last few years have been exciting times for The Conco Companies. We have had the opportunity to be involved in record breaking events and successfully taking on many new challenges.  While all this … Continue reading

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Stay Connected with What’s Happening at Conco

Along with current news articles published on our website at Conco Now, The Conco Companies have expanded our social media content to include many of the most popular sites.  We welcome our business associates, present and future customers, and the … Continue reading

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Construction is Underway on the Salesforce Tower

Another of The Conco Companies’ projects, the Transbay Tower was recently renamed the Salesforce Tower after the company leased a large portion of the building to become the biggest commercial real estate deal in San Francisco’s history.  The new Salesforce … Continue reading

Posted in Commercial Concrete Contractors Bay Area, Commercial Concrete Contractors San Francisco, Concrete Contractors Bay Area, Concrete Finishing, Concrete Formwork, Crane Rental | Leave a comment