Expansion Anchor B15

The B15 Expansion Anchor is designed for fast, single-sided fixing of formwork to concrete and rock surfaces. Made of galvanized metal, it is resistant to typical construction site conditions and can be used in different locations. The anchor thread is fully compatible with standard B15 tie rods, allowing it to be integrated directly into the formwork system without additional adapters. In C20/25 concrete, the anchor provides a design load capacity of 90 kN with a minimum drilling depth of 20 cm. A mounting hole diameter range of Φ36.5–Φ38 mm ensures correct expansion within the substrate. Its suitability for both concrete and different types of rock makes it a practical solution for single-sided formwork, retaining walls, excavations and tunnelling works.

Applications of the B15 Expansion Anchor

The B15 Expansion Anchor is suitable wherever single-sided anchoring of formwork into a solid substrate is required. Suitable for:

• single-sided fixing of formwork to rock walls,
• suspending and anchoring formwork to concrete walls,
• fixing foundation and retaining wall formwork in solid rock,
• temporary anchoring in reinforced concrete structures where a through tie rod cannot be used,
• single-sided formwork systems using B15 tie rods.

Technical parameters

• Product type: expansion anchor for tie rods
• Thread compatibility: B15 tie rod
• Material: galvanized metal
• Design load capacity in C20/25 concrete: 90 kN
• Minimum drilling depth: 20 cm
• Mounting hole diameter: Φ36.5–Φ38 mm
• Recommended drill bit: 36 mm
• Suitable substrates: concrete and rock of varying density