Anchor bolts can be categorized into two main types: cast-in-place anchors and post-installed anchors. Although both serve similar functions, they differ significantly in their installation methods and applications. Understanding these differences is crucial when selecting the appropriate anchor type for a specific project.
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Cast-In-Place Anchors
Cast-in-place anchors are embedded in wet concrete before it cures, ensuring a strong bond with the foundation. Typically, these anchor bolts are installed directly into the foundation and surrounded by concrete, with the anchor's thread protruding. Common configurations include headed anchor bolts, 90-degree bent anchors, and fully threaded rods. The use of cast-in-place anchors is ideal for scenarios requiring substantial embedment depth and high tensile strength to support significant loads.
Post-Installed Anchors
In contrast, post-installed anchors are added to concrete after it has set. The installation involves drilling a hole into the concrete to fit the anchor, which can be categorized further into two types: mechanical expansion anchors and adhesive anchors.
Mechanical expansion anchors (MEAs) are inserted into pre-drilled holes and expand once installed, providing a firm grip against the concrete. A common example of MEAs is wedge anchors. While they are easy to install, they generally possess lower tensile strength and may not perform well in tension zones where the risk of cracking exists.
Adhesive anchors are designed for pre-drilled holes with a special adhesive that bonds both the anchor rod threads and the surrounding concrete. Also referred to as epoxy anchors, they can achieve high bond stress in a relatively short curing time. Adhesive anchors come in various grades and finishes and can be customized in length according to the specific needs of the project.
For optimal anchor bolt installation, it is essential to consult with experienced professionals. Our knowledgeable sales team is available to help you determine the most suitable options for your requirements.
For more insights on Anchor Bolt specifications, please reach out to us. Our team is committed to providing you with expert guidance and solutions.
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