BASE MATERIALS
	Concrete Normal Weight Concrete is made from Portland cement, coarse and fine aggregates, water and various admixtures. The proportioning of these components controls the strength of the concrete. In the United States, concrete strength is specified by the compressive strength* of concrete test cylinders. These test cylinders measure six inches in diameter by 12 inches in length and are tested on the 28th day after they are produced. Lightweight Concrete consists of the same components (cement, coarse and fine aggregates, water and admixtures) as normal weight concrete, except it is made with lightweight aggregate. One of the most common uses of lightweight concrete has been as a structured fill of steel decking in the construction of strong, yet light floor systems. Typical fasterners for both normal weight and lightweight concrete include Trubolt Wedge Anchors, LDT Self-Threading Anchors, Dynabolt Sleeve Anchors, Multi-Set II Drop-In Anchors, Self-Drill Anchors, Stud Anchors and Epcon Adhesive Ahchoring Systems. *Compressive strengths shown in this catalog were the actual strengths at the time of testing. The load values listed were determined by testing in un-reinforced concrete.
	Masonry Grout-Filled Concrete Block consists of three conponents: concrete, mortar and grout. The mortar is designed to join the units into an integral structure with predictable performance properties. Tyical fasteners for grout-filled block include Dynabolt Sleeve Anchors, Redi-Bolt Removable Anchors, and Epcon C6 or A7 Adhesive Anchoring Systems. Hollow Concrete Block, Brick and Clay Tile are grouped together because they require special anchoring products that can be installed into a substrate that contains voids and still provide reliable holding values. Typical fasteners used in hollow block, brick and clay tile include Dynabolt Sleeve Anchors, Tapcon Self-Tapping Concrete Anchors, Epcon Adhesives with Screen Tubes and Epcon Adhesives used with the Umbrella Insert.
INSTALLATION PROCEDURES
	Anchor drill holes are typically produced using carbide tipped drill bits and rotary hammer drills. Look at the product sections of this catalog for the correct drill hole diameter and depth of each type of anchoring system. Careful cleaning of the anchor drill hole is important in order to obtain the best possible functioning of the anchor system. For each product in this catalog, detailed installation instructions are provided. Suggested clamping torques and curing times (for adhesive anchors) are also provided.
	Loading Holding values for the following types of loading are provided in this catalog: Tension loads— when load is applied along the axis of the anchor Shear loads— when the loads are applied perpendicular to the axis of the anchor Combined loads— when both tension and shear loads are applied to an anchor, a combined loading equation is provided to determine the maximum loads that can be applied to the anchor at the same time.

back : next

.