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Anchor Bolts Requires Higher
Sep 27, 2017

Building exterior insulation products at the beginning of the development, due to lower energy efficiency standards, and the use of better thermal conductivity of organic insulation materials, Anchor Bolts such as molded polystyrene board (EPS), extruded polystyrene board (XPS), Anchor Bolts hard foam Polyurethane plate (PUR), etc., the thickness of the general 3 ~ 5cm, insulation material weight lighter, insulation bolt length is generally not more than 10cm, external wall insulation system is still rare from the event. With the policy adjustment and intense competition in the market, high-rise buildings began to use a large number of rock wool, foam cement board and other inorganic insulation materials. Inorganic thermal insulation material itself thermal conductivity, to achieve the same insulation effect requires thicker material, and the apparent density is also organic insulation materials 5 to 20 times, around the building energy efficiency standards to further increase to 65% to 75% after the external wall insulation The thickness of the system is thicker, the weight is bigger, the length of the insulation anchor is longer, Anchor Bolts and the construction level of the insulation system is higher.

External wall insulation system is generally the main paste, mechanical fixed as a supplement. Paste the use of polymer modified cement-based adhesive, mechanical fixation is the use of insulation anchor. At present, the adhesive product quality and price irregularities, Anchor Bolts the unit area is also difficult to control the amount of business to reduce the cost of polymer powder tends to reduce the amount of polymer powder and the amount of mortar per unit area; and the adhesive with the naked eye can not distinguish its excellent quality Therefore, Anchor Bolts the mechanical fixation of insulation bolts is particularly important.

Insulation anchor by the expansion of the disc with the expansion of casing and expansion components, expansion casing material is generally polyamide, polyethylene or polypropylene plastic, the expansion of the pieces are mostly galvanized metal nails. When used, Anchor Bolts first insert the plastic sleeve into the borehole, then tap or screw in the metal screw. The end of the expansion casing has the friction force when it is expanded and squeezed in the drilling hole. When the expansion end section is larger than the hole, it also forms a certain mechanical locking action, and the shear force is generated in the expansion cross section. Anchor Bolts Different types of anchors have different frictional and mechanical locking forces. If the main force of the percussion anchor is the friction force, and the main force of the knotting insulation bolt is the mechanical locking force.

Insulation anchors are fixed in the base wall, Anchor Bolts and when it is subjected to tension, the expansion end of the anchor sleeve forms an external friction and mechanical locking force with the base material. Plastic sleeves and metal screws produce internal friction, Anchor Bolts the sleeve has a tension. The following relationships are satisfied between the various forces.

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