Technical

Jim Klinger, Concrete Construction Specialist The Voice Newsletter March 2024 "I heard it...I heard it...I heard it on the X..." ______________________________________________________________________________ Full Disclosure (back story):  Every so often, the ASCC Hotline receives calls for assistance regarding concrete that is resistant to elevated temperatures (aka &qu...

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Mike Hernandez, Technical Director, The Voice Newsletter March 2024 The current and future challenges of concrete construction are what the ASCC Technical staff focuses on each day. Those challenges can come in many forms. Jim Klinger has a vast library of documents and decades of experience in structural concrete and receives Hotline calls. Clark Branum, the Decorative and Polished Concrete Sp...

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Jim Klinger, Concrete Construction Specialist The Voice Newsletter February 2024 The Use of Laser Scanners Full Disclosure:  Imagine, if you will, the following scenario. You are an experienced project manager, patiently waiting to collect your retention for the reinforced structural concrete portion of a large, wood-framed condominium project. The stick framing begins at grade level--...

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Mike Hernandez, Technical Director The Voice Newsletter February 2024 As we begin 2024, ASCC collaboration with other trade associations continues to expand. The challenges with concrete expectations and particularly with low carbon concrete can’t be solved by the concrete contractor alone. Concrete has traditionally competed to be the paving and building material of choice with asphalt,...

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Jim Klinger, Concrete Construction Specialist The Voice Newsletter January 2024 Full Disclosure: One of the most valuable concrete industry documents that will ever cross the desk of an ASCC member is ASTM C94: Standard Specification for Ready-Mixed Concrete. Its companion document (prepared jointly in 2014 by the American Society for Testing and Materials (ASTM International) and the National ...

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ASCC at World of Concrete

Posted on January 17, 2024 in: Technical, Newsletter

Mike Hernandez, Technical Director The Voice Newsletter January 2024 Looking forward to our World of Concrete ASCC committee meetings, booths and events, 1/21/24 – 1/25/24. Committee meetings start Sunday afternoon 1/21 with MAC Board and Finishing Committee. All ASCC members are welcome to attend almost all committee meetings, with few exceptions. In case you missed it, PLC Alert! 2 was ...

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Jim Klinger, Concrete Construction Specialist, The VOICE Newsletter December 2023 Full Disclosure: Perhaps one of the most unwelcome telephone calls a concrete construction project manager could ever get usually comes first thing the Monday morning following a Friday foundation concrete placement that required setting of large anchor rod assemblies for follow-on steel buildings. Such phone call...

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Mike Hernandez, Technical Director, The VOICE Newsletter, December 2023 ASCC just issued Alert! #2 on portland limestone cement (PLC) (members click here to view). In it, ASCC recommends two tests, one for bleed rate and one for initial set. Because reduced bleed is a common issue raised about PLC, this test was recommended, per ASTM C232. One response from experts regarding our recommendations...

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Jim Klinger, Concrete Construction Specialist The Voice Newsletter November 2023 Question: We are building a large, 6-story reinforced concrete parking structure with a footprint of 113,832 gross square feet (GSF). Typical slab thickness is 7 inches, post-tensioned (PT), normal weight concrete (NWC). The building geometry is such that there are very few level slabs; typically, those are loca...

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Mike Hernandez, Technical Director The Voice Newsletter November 2023 ASCC members continue to work on numerous ACI Committees to monitor and influence the documents and present the contractor’s position. There are ACI committees on nearly any subtopic in concrete you can imagine. ASCC/ACI members have provided feedback on the work happening in the committees in which they are involved. F...

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