The American Concrete Institute (ACI) published ACI 301-20, Specifications for Concrete Construction, in October 2020. This standard specification establishes criteria for concrete construction that can be incorporated by reference into contract documents.
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The Calgary Chapter will be presenting on “Using Division 01 to Bridge the Gap between Division 03 and Division 09,” on Tuesday, March 9, from 2 to 3 p.m. This is a virtual event.
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The American Concrete Institute (ACI) published ACI 318-19, Building Code Requirements for Structural Concrete, in July. ACI 318 presents requirements for design and construction of structural concrete that are necessary to ensure public health and safety. It is addressed to the engineer or the building official who is responsible for the contract documents.
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Most floorcovering failures result from design mistakes, lack of groundwater barriers, and placement of the material before concrete has dried to safe levels. Therefore, all members of the project team must collaborate at every stage, such as the design, placement, curing, and relative humidity (RH) testing of the concrete.
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The Ryerson University Student Learning Centre (Toronto) has won a 2017 Excellence in Concrete Construction Awards from, the American Concrete Institute (ACI). It won in the Decorative Concrete category. The new, eight-storey centre features an elevated plaza and glass façade with bridges to the existing library. The building is certified under the Leadership in Energy and Environmental Design (LEED) Silver program, and 50 per cent of the roof is dedicated for vegetation.
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The American Concrete Institute (ACI) recently recognized the work of more than 100 professionals, groups, and companies at its Concrete Convention and Exposition, including the work of three Canadians.
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It is common to see lighting poles in shopping mall parking lots, walkways, roadsides, and residential areas. Generally, they are galvanized or painted steel tubing, with the bottom end welded to a steel base plate that has holes matching the pattern of anchor bolts embedded in a concrete footing. The lighting pole is then secured atop the footing with anchor bolts and nuts.
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For as long as anyone can remember, the construction industry has used the word ‘waterproof’ to describe construction materials. People commonly refer to something as being waterproof if it holds water in or out and does not leak. However, the word waterproof is technically not defined this way. Most dictionaries define it as being impervious to water, that water cannot penetrate it at all. This raises a serious question: Can anything really be completely impervious to water?
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