“Premiere on Pine” – ACI’s Second Place Winner in High Rise Category

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The Conco Companies are proud to report that one of our recent projects is the Second Place Winner of the American Concrete Institute’s 2017 Excellence in Concrete Construction Awards in the High Rise category.  One of only 12 winners internationally, the Premiere on Pine (formerly known as 815 Pine) is a 42-story tower that highlights the structural and technological advancements made in the concrete industry over the last several years.

This year’s winners were recognized at the “Celebrating Concrete Innovation and Excellence Across the Globe” Awards Gala that took place during the ACI Concrete Convention and Exposition.  In addition to Conco  serving as the concrete contractor for the Premiere on Pine’s project, the team included owner and developer, Holland Partner Group; architect, Weber Thompson Architects; general contractor, Holland construction Inc.; engineering firm, Cary Kopcznyski & Company; and Concrete Supplier, Stoneway Concrete.

The Premiere on Pine is constructed with high-strength concrete and reinforcing steel to create maximum floor space for the small site and is the first building in Seattle to have a specified concrete strength of 15,000 psi in its columns.  This allows the high-strength columns to be smaller than those in similarly sized buildings. Another innovation was to place the concrete continuously through the slab penetrations, which eliminated the need for concrete puddling around the columns.

The building is the tallest residential tower in Seattle, WA and offers residents a range of amenities including a hotel-inspired rooftop sky lounge and five levels of above-grade parking and five-levels below.  In addition the apartment units offer spectacular views of the Cascades, Puget Sound and downtown Seattle.

Conco was pleased to be selected for this unique, challenging project as well as to be a part of such an exceptional team.  We are extremely honored to receive the ACI’s 2017 Excellence in Concrete Construction award.

The Conco Companies are one of the foremost suppliers of concrete services for the Western U.S. We got our start in 1959 in the Bay Area by offering clients the best value on a broad range of concrete services and products.  Since that time, we have taken a leading role as top concrete contractors in the region. We have four regional offices serving California, Oregon, Nevada, Colorado and Washington.

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Seeking an Experienced Safety Director

Shotcrete Seattle

The Conco Companies is seeking an experienced Safety Director to provide safety leadership to over 1,200 employees for our Northern California, Southern California, Washington, Oregon and Colorado locations.   The individual will be responsible for helping to minimize and manage the legal and financial risks associated with an integrated subcontracting construction company.  The job includes overseeing Conco’s OSHA Compliance, our Fleet Safety Management, and Environmental Compliance.

In terms of our OSHA Compliance, Conco’s Safety Director will be responsible for developing and communicating policies and procedures in compliance with OSHA as well as federal, state and local rules and regulations.  The Director will also assist the estimating department with pre-bid safety planning, pre-bid qualifications, and development of corrective action plans.  He or she will participate with project teams on pre-construction safety coordination planning, and then put together a pre-project hazard assessment.

Conco’s Safety Director is also in charge of developing and effectively implementing safety strategic planning initiatives as well as leading executive, regional and divisional safety committees.  Additionally he or she will plan and implement company and site specific policies for construction safety and general industry facilities and other duties as stated on our job posting.

Along with OSHA Compliance, the Fleet Safety Management responsibilities include continuous improvements to the company’s fleet safety program to ensure compliance to D.O.T. regulations and company policies.  As our Safety Director you will develop, audit and improve, and implement driver safety training as well as maintain our fleet safety manual and more.

The Environmental Compliance aspect of the job requires applicants to have a QISP.  A QSD or QSP is preferred and experience with the CERS program is also preferred.

The position’s minimal requirements include requiring a CHST; and ASP, CSP, CIH are preferred, along with 10-15 years of safety experience.  Candidates should be capable of identifying known potential exposures and recommending the corrective actions.  We prefer that applicants have a Bachelor’s degree in safety management or a degree in a related field.  Please see Conco’s website for the complete job description and information on how to apply.

The Conco Companies are a leading supplier of concrete services for the Western U.S.  We got our start in the Bay Area in 1959 by offering clients the best value on a wide range of concrete services and products.  Since that time, we have taken a leading role as one of the top concrete contractors in the region. We have four regional offices serving California, Nevada, Washington, Oregon and Colorado.

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Facts Regarding the Tallest Skyscraper in San Francisco

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One recent project The Conco Companies provided a range of concrete services for is the Salesforce Tower in San Francisco.  Now the tallest and most expensive building in the city as well as the tallest occupied floor west of Chicago, the Salesforce is close to completion.  Scheduled to open in early 2018, the project developer’s, Boston Properties reports that nearly 700 construction workers are on site every day, working around the clock to finish the tower.

Another interesting detail about the 61-story skyscraper is it was originally named the Transbay Tower but Salesforce bought both the naming rights and the lease of 30 floors in the tower in a $560 million over 15 and a half year deal.  Other companies that will share space in the 1.4 million-square-foot building include Bain & Company, Accenture, and CBRE, a real-estate group.  WeWork, the newest tenant, just completed a deal to lease three floors of the tower, which will become their second headquarters.  Their first is in New York City.

The project’s General Contractor, Clark Construction want to let the building’s neighbors know that the tower is firmly anchored to bedrock by 42 load-bearing piles that go down more than 300 feet below grade.  In fact it is the first commercial office building in California to be designed with such an advanced level of seismic safety.

Along with the 13 ft. high ceilings and continuous 10 ft. tall windows on each floor, metal automated sunshades will adjust during the day to maximize sunlight as well as protect the offices from overheating.   Additionally the tower will offer direct access to the Transbay Transit Center, which will be just next door once it opens.

In terms of the number of people working in the tower, Salesforce alone expects to have 10,000 of their employees in the tower.  This is approximately a third of the company’s workforce.  The top two floors (60 and 61) are part of Salesforce’s lease and they say they will let out the top floor for free to nonprofit groups and nongovernmental organizations.

The Conco Companies are a leading supplier of concrete services throughout the Western U.S.  We got our start in the Bay Area in 1959 by offering clients the best value on a wide range of concrete services and products and are now one of the foremost concrete contractors in the region. Our concrete services include commercial, educational, industrial and public works projects as well as parking structures.

Source:businessinsider.com/photos-of-salesforce-tower-san-francisco-2017-4/#salesforce-and-its-billionaire-ceo-marc-benioff-are-riding-high-these-days-1

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Concrete Mixes that Meet the Specs of Each Project

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At The Conco Companies, our portfolio includes a wide variety of projects that have required the use of various concrete mixes to meet their unique specifications.  For projects that require extremely durable and/or high-strength concrete, High-performance Concrete (HPC) is used.

HPC is defined by the American Concrete Institute (ACI) as “meeting special combinations of performance and uniformity requirements that cannot always be achieved routinely using conventional constituents and normal mixing, placing, and curing practices.”  The design mix of HPC basically contains the same materials as conventional concrete with the difference being the proportion of the materials added to provide the needed strength and durability.

The ACI explains that HPC has a specified compressive strength of 8000 psi (55 MPa) or greater.  They add that, “The value of 8000 psi (55 MPa) was selected because it represented a strength level at which special care is required for production and testing of the concrete and at which special structural design requirements may be needed.” In addition to strength requirements, HPC is used in projects that face tough environmental conditions.   To achieve a project’s specifications, HPC uses other materials along with the cement such as flyash, ground blast furnace slag or microsilica fume.

The characteristics of HPC include low shrinkage, low permeability, a high modulus of elasticity, and high strength.   However not all high-strength concrete is high-performance.  The HPC used in the construction of bridge decks and highways must contain properties such as high density, low permeability and resistance to environmental conditions.  Other projects that benefit from HPC are the columns used in high-rises, especially the ones on the lower floors that will bear the greatest load, shear walls and foundations.

Please visit Conco’s website to see some of our impressive projects we have had the honor to be a part of.  Also while you are there, take a look at the wide range of premium concrete services we offer.

The Conco Companies are a leading supplier of concrete services for the Western U.S.  We got our start in the Bay Area in 1959 by offering clients the best value on a wide range of concrete services and products.  Since that time, we have taken a leading role as one of the top concrete contractors in the region. We have four regional offices serving California, Nevada, Washington, Oregon and Colorado.

Sources:concrete.org/topicsinconcrete/topicdetail/high%20performance%20concrete

 

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The U.S. Concrete Industry

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The concrete industry produces approximately 10 billion tons of concrete worldwide.  In the U.S. the industry has an annual production of 500 million tons with an estimated value of $35 billion and employs more than 2 million employees.  It is suggested that with the amount of the U.S.’s yearly production that it equals to about two tons for every man, woman and child.   To produce these types of volumes, it requires vast amounts of natural resources to supply the aggregate needed as well as to make the cement.  Concrete is used to build highways, streets and bridges, commercial, industrial, medical and educational structures, residential housing and other construction markets.

The National Ready Mixed Concrete Association (NRMCA) reports that there is an estimated 5,500 ready mixed concrete plants located throughout the country.  They also report that the industry has around 55,000 ready mixed concrete mixer trucks that are used to deliver the material to the jobsite.

It is critical to the success of the placement of the concrete to have plants located close to urban areas as well as to rural locations as the material needs to be delivered to the site in a timely manner.  This means that concrete production facilities are typically located “within 60 to 90 minutes travelling distance from any construction project.”

It is also interesting to note that approximately 75% of the cement shipped to the U.S. is used by the ready mixed concrete industry.  In addition to the portland cement, concrete may also contain industrial byproducts such as fly ash derived from coal burning power plants and slag from the manufacturing of iron.  Silica fume, a byproduct of the silicon and ferrosilicon alloy production, is used as a pozzolanic material for high performance concrete.

The Conco Companies are one of the leading concrete contractors in the Western U.S. and offer a wide range of quality services and products.  Our experience includes providing services for commercial, educational, parking and other construction development as well as public works projects.  We serve California, Washington State, Oregon, Colorado and Nevada.

Sources: nrmca.org/concrete/data.asp

columbia.edu/cu/civileng/meyer/publications/publications/83%20Concrete%20Materials%20and%20Sustainable%20Development.pdf

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Telebelt® TB 105 Telescopic Belt Conveyor

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The Conco Companies have an impressive fleet of modern, state-of-the-art concrete pumps in addition to Telebelts.  We use this equipment to help us complete projects faster and more efficiently for our customers.

One of our more recent additions to our fleet is a couple of Telebelt® TB 105 Telescopic Belt Conveyors that are available from our Southern California and Washington State locations.   The Telebelt is a versatile tool that can be used to convey a wide variety of materials ranging from sand all the way to 4-inch rock.  It has an operating capacity of up to 360 cubic yards per hour and provides a cost-effective alternative to transporting materials with a crane and skid-steer.

The belt conveyors can eliminate the labor-intensive process of having to re-handle the material and are ideal in congested jobsites with uneven, muddy ground.   They can also be the solution in areas with low clearances or a tight access point as well as a job that requires material to be deposited below grade.  Conco uses our Telebelts to assist with mat pours, large foundations and footings, and backfill.

The 105 Telescopic Belt Conveyors come with a variety of hopper options and have a horizontal reach of 105 ft. and an 18” conveyor belt width.  They can handle concrete from 0” to 12” slumps and can be setup and operated under heights as low as 16 ft.  In addition to transporting concrete, the belt conveyors are used to transport rock, gravel, backfill and other materials.

Our Telebelt® TB 110 offers many of the same benefits as the 105 Telescopic Belt Conveyors but with a capability of 5 cubic yards per minute.  It too has an easy setup even in congested areas or rough terrain.  Please visit our website for more information and specifications on our Telescope Belt Conveyors along with our concrete pumps.

The Conco Companies are one of the foremost suppliers of concrete services for the Western U.S. We got our start in 1959 in the Bay Area by offering clients the best value on a broad range of concrete services and products.  Since that time, we have taken a leading role as top concrete contractors in the region. We have four regional offices serving California, Oregon, Nevada, Colorado and Washington.

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Concrete is All Around Us

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An interesting report from the Portland Cement Association (PCA) illustrates the various uses for portland cement as it is one of the key ingredients in concrete.  They suggest that while concrete is very important to the way we live, and in fact surrounds us, it is often overlooked.  They explain that concrete “makes our homes and offices durable and more resilient in natural disasters, it makes our roads and bridges strong and last longer, and thanks to its permanence and energy efficiency, it helps sustain our environment.”

From their illustration, the PCA’s breakdown of how concrete is used includes 8.4% on water and waste systems, 8.9% for industrial and commercial buildings, 27.5% on one-and-two family houses, and 30.8% on the construction of highways, streets and bridges.  The other 22.1% is used to build offices, hotels, hospitals, religious institutions, educational institutions and public utilities.

Concrete is a mixture of cement paste (cement and water) and coarse and/or fine aggregate.  Almost all modern cement is portland cement, which was patented in 1824 by the Englishman, Joseph Aspdin, who named it for its similarity to a building stone quarried on the Isle of Portland.  The PCA also describes the various components of concrete as containing 7 to 15% cement, 14 to 21% water, 60 to 75% of aggregate and as much as 8% of air.

At The Conco Companies, we have been involved in a wide range of projects from towering skyscrapers, to mixed-use high-rises, hospitals, educational, public utilities and parking structure projects.  Conco Pumping is one of the largest pumping and belting companies in the United States and has a reputation for delivering first-class concrete pumping services since 1975.  At Conco Reinforcing, we own and operate two state-of-the-art facilities that give us the resources to be a single source for all your rebar fabrication and installation needs regardless of the project size. Please visit our website to learn more about the various concrete services offered by Conco.

Conco is one of the leading concrete contractors in the Western U.S. and offer a wide range of quality services and products.  Our experience includes providing services for commercial, educational, parking and other construction development as well as public works projects.  We serve California, Washington State, Oregon, Colorado and Nevada.

Source: cement.org/civilization

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