page_title: Precast concrete
section_title: Hazardous materials containment
hierarchical_section_title: Precast concrete / Precast concrete products / Specialized products / Hazardous materials containment
caption_attribution_description: Deutsch: Herstellung von Betonbauteilen (Accropode) für die Hafenerweiterung in Valle Gran Rey, Gomera, Spanien English: Manufacture of concrete components (Accropode) for the port expansion in Valle Gran Rey, La Gomera, Spain
context_page_description: Precast concrete is a construction product produced by casting concrete in a reusable mold or "form" which is then cured in a controlled environment, transported to the construction site and lifted into place. In contrast, standard concrete is poured into site-specific forms and cured on site. Precast stone is distinguished from precast concrete using a fine aggregate in the mixture, so the final product approaches the appearance of naturally occurring rock or stone. More recently expanded polystyrene is being used as the cores to precast wall panels. This is lightweight and has better thermal insulation.
  Precast is used within exterior and interior walls. By producing precast concrete in a controlled environment, the precast concrete is afforded the opportunity to properly cure and be closely monitored by plant employees. Using a precast concrete system offers many potential advantages over onsite casting. Precast concrete production can be performed on ground level, which helps with safety throughout a project. There is greater control over material quality and workmanship in a precast plant compared to a construction site.
context_section_description: Storage of hazardous material, whether short-term or long-term, is an increasingly important environmental issue, calling for containers that not only seal in the materials, but are strong enough to stand up to natural disasters or terrorist attacks.
caption: A precast concrete armour unit (Accropode).
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