Best Selling 20 mm Stainless Steel Bar

Description of Rebar Anchor

Rebar anchors are divided into longitudinal ribless rebar resin anchors (referred to as left-handed anchors) and equal-strength rebar resin anchors (referred to as right-handed anchors). Left-hand and right-hand anchors implement the MT146.2-2011 standard, which is the basic component of tunnel support in contemporary coal mines, binding the surrounding rocks of the tunnel together, so that the surrounding rocks support themselves. Nowadays, anchor rods are not only used in mines, but also used in engineering technology to actively reinforce slopes, tunnels and dams. Anchor as a deep stratum of the tensile member, it is connected with the engineering structures at one end, the other end of the deep stratum, the whole anchor is divided into the free section and anchorage section, the free section is the anchor head of the tensile force to the anchor solid area, its function is to apply prestressing force to the anchor; anchorage section refers to the cement paste will be prestressing tendon bonded with the soil layer of the region, its function is to increase the friction effect of the anchorage solid bonded with the soil layer, increase the anchor solid pressure-bearing effect, will be the anchor of the soil layer, and will be the anchor of the soil layer, the anchor of the soil layer. Its function is to increase the bonding friction between the anchor solid and the soil layer, increase the pressure-bearing effect of the anchor solid, and transmit the tension of the free section to the depth of the soil. Right-handed anchor is a very practical geo-engineering support material, which has good tensile strength and corrosion resistance. When it is used, attention should be paid to the maintenance and care in terms of safety, stability and durability to ensure its long-term and effective function.

Anchor technical parameters

  Strength specificationΦ16 Yield strength(MPa)≥335 Tensile strength(MPa)≥490 Elongation(%)≥16 Breaking load(KN/M)≥100 Theoretical mass(KG/M)1.58

  Strength specification Φ18 Yield strength (MPa) ≥335 Tensile strength (MPa) ≥490 Elongation (%) ≥16 Breaking load (KN/M) ≥126 Theoretical mass (KG/M) 2.00

  Strength specification Φ20 Yield strength (MPa) ≥335 Tensile strength (MPa) ≥490 Elongation (%) ≥16 Breaking load (KN/M) ≥156 Theoretical mass (KG/M) 2.47

  Strength specificationΦ22 Yield strength(MPa)≥335 Tensile strength(MPa)≥490 Elongation(%)≥16 Breaking load(KN/M)≥189 Theoretical mass(KG/M)2.98

Rebar Anchor Product Structure Characteristics

The whole length of the rod has rolled continuous threads with equal strength over the whole length; the fastening end is equipped with a prestressing spacer and a ball-shaped nut.

Anchor rods are classified according to diameters, generally the most commonly used are: 16mm, 18mm, 20mm, 22mm; Anchor rods can realize a better match with the diameter of the anchor hole and the diameter of the resin maki-e roll, which has the characteristics of strong anchoring force, high elongation, safety and reliability, high quality and low consumption, and easy to use.

Anchor material description: high strength anchor raw materials used in the elongation of not less than 15%, yield strength of not less than 335MPa, breaking strength of not less than 490MPa, the material for the 20MnSi steel by hot lashing and become, respectively, compressive 20 tons to 50 tons, Φ18 to Φ22 rod straightness tolerance ≤ 2mm / m, Φ16 rod straightness tolerance is less than 4mm / m. Rod tail The bearing capacity of the screw thread should be not less than 75% of the breaking force of the parent material of the rod.

Anchor use method.

1. Determine the anchor hole position according to the design requirements, and drill the hole with drilling rig.

2.Blow out the rock dust in the hole with pressurized air.

3. Send the anchoring agent to the bottom of the hole, hold it against the anchor and start mixing (mixing time is specified according to the type of the anchoring agent), after mixing, unload the mixing tool, after reaching the waiting time, unload the mixing connecting head, put on the anchor plate, ball washer, friction washer, and tighten the nut with a wrench.