The Conco Companies have provided concrete services for many modern apartment and mixed-use buildings located in easy walking distances from shopping, jobs, entertainment and transportation. Many mixed-use plans focus on building community settings that are like small towns within larger urban cities and emphasize walkability and available transportation. The intention of these projects is not to separate residential and business areas as it was traditionally done but to integrate the two. Not only is it more “green” to eliminate or reduce people’s need for long commutes but it is also healthier and often less stressful. The goal of many mixed-use projects is for individuals to be able to walk to work or to public transportation while living close to restaurants, grocery stores and cultural and entertainment venues. Mixed-use plans not only appeal to consumers to also can help to lessen some of the risks involved in large project. As an example if a hotel also builds luxury condominiums as part of the project, the sale of the condominiums can help to offset some of the cost of the hotel. Likewise if a hotel includes an entertainment venue, the income generated from the events also helps to reduce some of the cost of the hotel. One example of Conco’s participation in a mixed-use project is the Riverfront, in downtown Napa, CA. The Venetian-style building is a development of 50 residential condos, 30,000 sq. ft. of office space, and 40,000 sq. ft. of retail. The Riverfront area is a popular hotspot for foodies and high-end restaurants. Another project that Conco was a part of is 815 Pines, a new 40-story apartment building adjacent to the historic Paramount Theatre. The apartment is in the middle of Seattle’s vibrant downtown and close to the Rapid Ride Transit and Seattle’s retail core. The building consists of 325 apartments, 276 parking stalls, and a restaurant and retail at the ground floor to cater to the theatre clientele. Finished just last year, the Platform, another Conco project, is right next to the historic Union Station in downtown Denver. The project included 288 apartment units, 260 parking spaces, and approximately 7,000 SF of retail space. Conco’s mission is to be the best supplier of concrete services in the Western United States and to bring expertise and unsurpassed quality to each project. We continue to upgrade and expand facilities to better serve the growing market for public works projects, commercial, parking structures, educational, and other construction development. Source: blog.enggroupe.com/trends-in-mixed-use-development/ www.sajebuild.com/trends-in-hotel-building-mixed-use-plans/
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Downtown Denver is being revitalized with many new buildings recently completed and others that are still in the construction or planning phase. Now that the newly renovated Union Station is open, we started thinking about other historic sites in the Denver area and how they are faring. The National Register of Historic Places lists 289 properties and districts for Denver on their registry. One of the more distinct landmarks in downtown Denver is the Daniels & Fisher (D&F) Tower. When it was constructed in 1910 as part of the Daniels & Fisher department store, it was the tallest building between the Mississippi and California at 325 ft. The tower was designed by architect Frederick Sterner and modeled after The Campanile (St. Mark’s Tower in Venice, Italy. One of the unique features on the outside of the building is its 20-floor clock tower with faces on all four sides. After the department store was demolished in 1971, the tower was saved and reopened in 1981 as renovated lofts and businesses. Another interesting building is the Sherman Street Event Center that was formerly known as the Mosque of the El Jebel Shrine, the Rocky Mountain Consistory, and the Scottish Rite Temple. Never a mosque in Islamic terms, the historic building was constructed in 1907 as a meeting hall for the Shriners (El Jabel chapter of the Ancient Arabic Order of the Nobles of the Mystic Shrine). The building was sold to the Scottish Rite Masons in 1924. In 1995, it was resold and is now a catering and events facility. Our last choice of buildings to discuss is the Cathedral Basilica of the Immaculate Conception that was started in 1902 and completed in 1911. It was designed by a Detroit architect, Leon Coquard, in the French Gothic style and influenced by the 13th-century Saint Nicholas Collegiate church in Moselle, France. The cost to build the large 800-person capacity cathedral was about $500,000. We are a leading supplier of concrete services for the Western U.S. and 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 currently serve California, Washington, Oregon, Nevada and Colorado. Source: en.wikipedia.org/wiki/National_Register_of_Historic_Places_listings_in_Denver,_Colorado If you have not kept up with what’s new at The Conco Companies, we are continuing to grow our operations with upgrading and expanding equipment and facilities as well as our geographic footprint in an effort to better serve our customers. With headquarters in the Bay Area, we currently offer premium concrete services to the following cities and surrounding communities: Los Angeles, San Francisco, San Jose, Sacramento, Seattle, Portland, Denver, Colorado Springs and Reno. By keeping our facilities up-to-date with the latest technology, it has allowed us to become one of the largest reinforcing steel and post-tension cable contractors in the West. Our two modern, state-of-the-art rebar facilities are located in California and Washington. In addition we have the expertise to design and implement forms that are certain to meet all of your job specifications and requirements. We bring a coordinated team approach and numerous in-house resources to every project, and can serve as a single source on all formwork from the design stage, to fabrication, to placement. In addition our Conco Pumping Company serves most of our locations and has a proven record for offering unique solutions and a wide range of placing options. In yet another area that Conco has built an excellent reputation in is our shotcrete services. We have taken a leading role in the developing field of sculptured shotcrete walls that have structurally integrity as well as being attractive. We are also frontrunners in the industry with obtaining our Stud Rail Fabrication certification for Conco’s rebar facilities. The Stud Rail certification allows us to provide cost-effective solutions that simplify the method of reinforcement for flat concrete slabs against punching shear at the column connection. The prefabricated Stud Rail Assemblies offer faster installation which helps to reduce time and labor costs and also increases design flexibility. The Conco Companies mission is to be the best supplier of concrete services in the Western U.S. and to bring experience, expertise and quality to each project. We continue to upgrade and expand facilities to better serve the growing market for a wide range of construction development. As a nationally recognized commercial concrete contractor, The Conco Companies serve the West Coast along with Colorado and Nevada. Our broad range of services includes reinforcing, concrete design, formwork and concrete finishing as well as owning and operating the Reliable Trucking Company. In addition we have built a reputation for providing premium concrete pumping and shotcrete services. We have operated one of the largest concrete pumping companies in the United States for over 40 years and bring to each project our vast experience in placing concrete. By combining our expertise and extensive fleet of state-of-the-art concrete pumps, we offer customers a wide range of specialized placement options. We know how to move materials quickly and efficiently to save both time and labor costs. For the convenience of our customers, we have equipment based at facilities located in Northern California, Southern California and Washington State. Our concrete pumps have been busy at work over the last several years on some very notable projects. We did the concrete on the San Francisco 49ers new stadium and are busy providing concrete services for the new Salesforce Tower in San Francisco. In February of 2014, we were thrilled to break the world record for the largest continuous mat pour on the Wilshire Grand Center in Los Angeles. All of these projects have kept our fleet of concrete pumps extremely busy. Another area where we excel in is our shotcrete services that are offered in Washington State, Northern California, and Southern California. We specialize in servicing jobsites with extreme operating environments such as chemical plants, gas-fired electrical generators and hydroelectric plants. As shotcrete almost eliminates the forming process all together, shotcrete walls can be constructed faster and with less material to save time and money. Conco is a leading supplier of concrete services serving California, Oregon, Washington, Nevada and Colorado. We have built our reputation with superior concrete formwork, reinforcing, place and finish, shotcrete and other ancillary services that benefit from our vast experience. The past couple of decades have led to many advances in concrete design and technology. Today, concrete not only offers improved performance for a broader range of applications but it has also become “greener”. P. Kumar Mehta, an author of numerous papers on the properties of concrete and cementitious building materials as well as a recently retired Professor Emeritus of Civil Engineering at the University of California, Berkeley commented on the emerging developments in concrete technologies. He noted that, “It is not surprising that much of the advancements in concrete technology have occurred as a result of two driving forces...the speed of construction and durability of concrete.” Concrete’s evolution includes using new materials in the production process, a greater acceptance to recycling, mixture proportioning, and improved durability. Recently introduced concretes such as high performance concrete (HPC), ultra-high performance concrete, and geopolymer concrete offer many advantages over traditional concrete and few disadvantages. AggregateResearch.com states that one of the benefits of HPC’s is that it contains industrial waste by-products such as fly ash and silica fume that is not only readily available but helps to keep the material out of landfills. Also when a concrete mix uses more of these products, it allows the concrete to be produced with less Portland cement, which in turn reduces the carbon dioxide emissions that are released during the production of cement. Furthermore, the industry by-products offer the advantage of typically being less expensive than cement. Other technological advancements continue to improve the longevity of concrete. It is believed that the concrete produced today will last for hundreds of years not just decades. AggregateResearch.com adds that, “new concretes have better corrosion resistance, equal or higher compressive and tensile strengths, higher fire resistance, and rapid curing and strength gain. In addition, the production and life cycle of these new concretes will reduce greenhouse gas emissions by as much as 90%.” The Conco Companies’ mission is to be the best supplier of concrete services in the Western United States and to bring expertise and unsurpassed quality to each project. We continue to upgrade and expand facilities to better serve the growing market for public works projects, commercial, parking structures, educational, and other construction development. The Conco Companies have purchased another Schwing Tremmie M31 pump to serve our drilling customers in Northern California in response to the successful performance of the M31 at our Southern California operations. The M31 was developed as a result of a collaborative engineering effort by Conco and Schwing America in order to better meet the challenges of the drilling industry. Until the introduction of the M31, drillers had to contend with the fact that most concrete booms are rated with a lifting capacity of 300 – 400 lbs. and are not capable of lifting heavy loads of long tremmie pipes filled with concrete. To avoid the possibility of disaster, cranes were used to assist with the lift of the boom. Conco and Schwing’s joint efforts resulted in a pump that offers the industry up to 1,100 pounds of capacity for lifting up to 60’ tremmies of 4” 11Ga. safely. The newly designed Schwing Tremmie has the capability to lift long tremmies into caissons without the need to crane assist as with conventional pumps. Also the compact roll and fold design of the boom does not interfere with typical drilling operations. The M31 is CARB compliant and equipped with the latest emission standards! The Schwing Tremmie pump’s highlights include: · Modified tip section allowing for 1,100 lbs. of lifting capacity. · Roll and fold boom that does not interfere with drilling operations. · Small footprint for tight jobs. · Forward “X” style telescoping outriggers and lateral telescopic rear outriggers that do not interfere with jobsite obstacles. · Modern “B” Rock valve that can easily pump lean mixes. · Large material cylinders to reduce cycling times resulting in smoother pumping. · Cab over truck to maximizes reach. · CARB compliant 2014 model. At Conco we believe that getting a job done effectively and efficiently requires the upmost expertise along with the proper equipment. By having a new 31M concrete pump based out of our Northern California operations, we are ready and able to assist drilling customers with their project specific challenges. When your project demands exceptional services and the best value, Conco can deliver. We partner with clients on every project from the pre-construction stage right through to final completion offering cost-effective solutions to meet the ever-changing demands of the industry. We have four regional offices serving California, Oregon, Washington, Nevada and Colorado. The Conco Companies served as the General Contractor on the parking structure for the new Paragon, a mixed-use, 301-unit apartment project in the Central Business District of Fremont, CA. The developer on the project is SummerHill Homes, a nationally-recognized home builder in Southern California and the San Francisco Bay Area. The two apartment buildings that make up the community are separated by a pedestrian-friendly public park designed with seating areas and artistic sculptures. As the General Contractor on the project, Conco constructed a seven-story, cast-in-place design-build parking structure that contained 445 parking spaces. The project required 1 million pounds of reinforcing steel and we placed 176,799 sq ft of concrete. Once the project was finished, we had used 6,200 cu yd of concrete and 2,000 cu yd of shotcrete. The Paragon is just one of several mixed-used apartments that have recently been built in the area. It is located close to the Fremont BART station and made up of a selection of spacious one and two bedroom floor plans with 9-foot ceilings and contemporary finishes. The amenities feature a pool and spa with a large sun deck, a premium fitness center, an executive meeting room equipped with video-conferencing capabilities, and a community lounge perfect for entertaining. Each apartment has high-speed Internet and free Wi-Fi service is available throughout the common areas. In addition the units are all equipped with energy efficient windows and Energy Star kitchen appliances. The complex is located within easy walking distance of shopping, outdoor recreation and a selection of restaurants. The Conco Companies are a leading supplier of concrete services for the Western U.S. and 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 currently serve California, Washington, Oregon, Nevada and Colorado. Concrete mixes made of portland cement are porous and are susceptible to cracking especially during freeze/thaw cycles. They can even be the cause of deterioration of rebar as moisture may seep in over time. To reduce concrete’s permeability to water and prolong its life span, blended cements are used and offer an advantage of reducing the water-cement ratio (w/c), which one method of producing high-strength concrete. Blended cement as defined by the American Concrete Institute’s (ACI) Cement and Concrete Terminology is “hydraulic cement that is produced by intergrinding portland cement clinker with the other materials or by blending portland cement with the other materials or a combination of intergrinding and blending.” Changes were made to blended cements in 2012 for special applications as well as for general use that have the approval of the ASTM. The ASTM’s C595 abstract on hydraulic blended cements describes “Type IS” as Portland Blast-furnace Slag cement and “Type IP” as Portland-pozzolan cement. The C595 abstract states that, “They can also be described according to air-entraining, moderate sulfate resistance, moderate heat of hydration, high sulfate resistance, or low heat of hydration properties.” Type I (SM) Slag-modified Portland cement has a standard that contains less than 25% slag by mass of the cement. With the ASTM’s C595 change, it now permits Type IS Portland Blast-furnace Slag cement to contain between 25 and 70% by mass of the finished cement. By varying the proportions of the mix, blended cements are customized and produced to meet the demands of specific projects. Furthermore, the ASTM goes on to say that, “cement shall undergo different tests to determine the following properties: chemical analysis, fineness by sieving, fineness by air-permeability, autoclave expansion, time of setting, air content of mortar, compressive strength, heat of hydration, normal consistency, specific gravity, water requirement, mortar expansions of blended cement and pozzolan, drying shrinkage, activity index with Portland cement, and sulfate resistance.” At The Conco Companies, our mission is to be the best supplier of concrete services in the Western U.S. and to bring experience, expertise and quality to each project. We continue to upgrade and expand facilities to better serve the growing market for a wide range of construction development. Mineral admixtures are an economical way to create even stronger concrete and provide an environmentally responsible way to recycle industrial and other waste by-products. In addition while chemical admixtures only make up about 5% of the concrete mass, mineral admixtures can be used in large amounts to replace portland cement and/or fine aggregates. So what are mineral admixtures? Wikipedia states that mineral admixtures are “inorganic materials that also have pozzolanic or latent hydraulic properties. These very fine-grained materials are added to the concrete mix to improve the properties of concrete, or as a replacement for portland cement (blended cements).” They are defined by the American Concrete Institute as “a siliceous or siliceous and aluminous material that in itself possesses little or no cementitious value but will, in finely divided form and in the presence of moisture, chemically reacts with calcium hydroxide at ordinary temperatures to form compounds having cementitious properties.” The most common mineral admixtures are fly ash, silica fume, blast furnace slag, and metakaolin. Fly ash is a by-product from coal plants and is used to replace up to 60% of portland cement. Silica fume is a by-product of silicon and ferrosilicon alloys and has particle size 100 times smaller than fly ash. Blast furnace slag is a by-product of steel production and can replace portland cement by up to 80% of the mass. So what are the advantages of using mineral admixtures? According to the U.S. Department of Transportation, when mineral admixtures are added to concrete in larger amounts, “it enhances the workability of fresh concrete.” DOT also states that it improves the resistance of concrete to thermal cracking, alkali-aggregate expansion, and sulfate attack as well as enables a reduction in cement content. The Conco Companies mission is to be the best supplier of concrete services in the Western U.S. and to bring experience, expertise and quality to each project. We continue to upgrade and expand facilities to better serve the growing market for a wide range of construction development. 1. en.wikipedia.org/wiki/Concrete 2. concrete.org/TopicsinConcrete/TopicDetail.aspx?id=71&Search=Pozzolans 3. fhwa.dot.gov/infrastructure/materialsgrp/admixture.html The Conco Companies were awarded the concrete services on the parking structure for the new Stanford Hospital in Palo Alto, CA. The $2 billion hospital structure was topped off in March, 2015 and is scheduled to be open for patients in early 2018. The building was designed by Rafael Vinoly Architects along with medical planners Lee, Burkhart, Liu Inc. Clark/McCarthy is the project's joint-venture general contractor (Clark Construction and McCarthy Building Companies). The hospital will add 824,000 square feet to the existing Stanford Hospital campus and the new parking structure will add approximately 913 new parking spaces. Conco’s scope of work on the new parking structure consists of constructing 2 levels below grade, 1 level at grade and 2 levels above grade for a structure that totals approximately 397,359 square feet. The project will require 4.2 million pounds of reinforcing steel. During the construction of the new structure, we will use 17,000 cy yd of concrete and 1,200 cu yd of shotcrete. The new facility will meet seismic safety standards and is being built to accommodate advances in medical technology. Once complete, it will include a total of 600 beds with 368 private patient rooms and a Level-1 Trauma Center that is more than twice the size of the current Emergency Department. In addition there will also be state-of-the-art diagnostic and treatment rooms, five gardens, walking trails and a meditation room. A pedestrian bridge and underground tunnel will connect the new building to the existing Stanford Hospital. At the Conco Companies, our goal is to be the best provider of concrete services for the Western United States. We have built our reputation on superior concrete formwork, reinforcing, place and finish, shotcrete and other ancillary services that benefit from our vast experience. Currently we serve Northern and Southern California, Oregon, Washington, Nevada and Colorado. |
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