Specifying the concrete slab to be polished

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One of the biggest mistakes a designer can make when specifying polished concrete slabs is to state, “Concrete for polished concrete, including formwork, reinforcement, concrete materials, mixture design, placement procedures, initial finishing, and curing is specified in Section 03 30 00 Cast-in-Place Concrete.”

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Preparing for risk through resilience

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Resilience is where the promise of sustainability and the real world meet. Unfortunately, this promise often goes unfulfilled as current industry trends favor cheap instead of durable. A first-cost mentality is simple, but when the wrong materials are specified, it can expose owners and occupants to higher risks than most realize.

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Polished concrete flooring projects surge

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Projects throughout the United States showcase how construction materials are playing a supporting role in industries where new technology rollouts, tight timelines, and sustainable design are the new norm. Fast-setting, calcium sulfoaluminate (CSA) cement-based products are increasingly the key to achieving demands for both new and renovated construction.

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Dry concrete for moisture-sensitive floorcoverings

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There are two major sources of moisture in fresh concrete—excess mixing water left over after hydration of cement, along with natural groundwater beneath the concrete that moves to the surface by capillary action. This article describes how to control the sources of moisture in concrete slabs, minimize drying wait time to meet floorcovering manufacturer’s requirements, and determine when the slab meets those requirements.

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Taking a new approach to concrete

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In 2006, the Strategic Development Council of the ACI Foundation (established by the American Concrete Institute) recognized the need to set minimum requirements for strength, serviceability, and durability for existing structures.

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