Healthy Concrete Systems: Defending design intent


Construction documents need to be clear, concise, correct, and complete—but is this enough to fend off the twists and turns of executing the contract for construction? One may begin with the very best in design intent, but it is the responsibility of the entire project team to understand and adhere to this in order for it to become a reality. Too often, some of the team members will alter the intended design to accommodate their own business advantage.

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A faster, simpler way to a Level 5 finish

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Drywall is often misperceived as a building material that does not demand the skillful manipulation of a traditional construction material. However, anyone who has worked with drywall knows the product is not so cooperative.

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Polished concrete flooring projects surge


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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Mix Design Fundamentals: Considerations for concrete for slabs-on-ground

Photo © BigStockPhoto/Theerapol Pongkangsananan

Interior concrete should not crack or curl excessively requiring grinding before the flooring can be installed; exterior concrete should not crack or deteriorate prematurely from freeze-thaw cycles. Some argue concrete will always crack, and nothing can be done about it. This is most often an excuse when poor design or poor placement has resulted in excessive cracking or the real problem is too much mix design water, lack of welded wire reinforcement, or too little aggregate and poor curing methods.

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Better Concrete Starting at the Finish: Long-term benefits of colloidal silica-based finishing

Images courtesy Lythic Solutions

Recently, concrete contractors have started using a colloidal silica-based compound as a finishing (or ‘troweling’) aid for flatwork. It makes the surface denser, and increases the quality of cement paste. Additives in the compound help the surface slow evaporation though hydrophobic properties, protecting the concrete from a range of moisture loss-related defects. It also makes it unnecessary for contractors to add water to finish the concrete. The result has implications for buildings, pavements, roadways, bridges, and even precast structural and architectural concrete.

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