Topic Tag: Unit 4

Screeds and Bulkheads

Large concrete slabs often require multiple pours to complete. This requires the construction of bulkheads to contain the fresh concrete in each section and the construction of screeds to ensure the proper grade is maintained across the width of the pour. In addition to being strong enough to contain the fresh concrete, bulkheads must also be …

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Sealants

Some experts suggest that allow the cost of labor and materials in weatherproofing a concrete project amount to less than one percent of the cost of the job, as much as 95 percent of the repair and maintenance costs associated with concrete structures are a result of weathering. While some damage from weathering is bound to occur, the fact remains …

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Fundamental Math

Abrasive blasting is the process of ejecting a stream of abrasive particles from a blast machine using compressed air propelled at high speeds. Abrasive blasting is used for the cleaning, surface preparation and finishing of concrete surfaces.  As a finishing technique, abrasive blasting can produce pleasing, decorative effects, enhancing the visual features of the sandblasted …

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