What type of foundation is necessary for your buildings?
Every project has different foundation requirements. The type of foundation used will depend on your application and the engineering requirements for the size of the structure. Types of foundations range from ground or gravel, asphalt, concrete slab, concrete pony wall, concrete piles, concrete blocks or ring beam. The most important features required of the foundation are that the foundation is level and provides secure anchoring points which meet the necessary engineering and building code requirements. For larger structures a concrete foundation is generally required.
How are your buildings anchored to the foundation?
Several different types of anchoring systems can be used. For any type of concrete foundation there are three different types of anchor:
- Pre-cast anchors – threaded anchors cast into the concrete while it is poured. This method is very effective but requires the most precision when setting.
- Post Drilled Chemical anchors – This process requires a hole to be drilled and then filled with a 2-part chemical adhesive. A threaded rod is inserted into the adhesive before it sets to form the anchor. Very effective and allows more versatility because it is set after the metal framework is in place.
- Post Drilled Wedge anchors – This process requires a hole to be drilled and a wedge type anchor is hammered in place. Very effective and allows more versatility because it is set after the metal framework is in place. This is the easiest method because it is not affected by temperature or moisture.
For earth or asphalt foundations there are two alternatives for anchoring:
- Concrete piles can be poured and then pre-cast or post drilled concrete anchors can be used.
- Ground anchors can be used. There are a few different types; Duck bill anchors, Helical Screw type anchors, and Manta Ray anchors. The Helical Anchors are very environmentally friendly because they can be effectively removed from the foundation returning the area to its original condition. The Duck bill and Manta Ray anchors can be detached with a small portion of the anchor left well below grade leaving the surface area free of debris.
Each of these anchoring methods will meet the building code requirements of most counties or municipalities.