Flat Fix Spacer

Flat Fix Spacer

The Flat Fix Spacer is typically made of high-strength plastic and is used on horizontal surfaces. This spacer easily attaches to rebar, ensuring that the reinforcement remains in position during concrete pouring. As a result, it enhances the strength and durability of the structure.

Purpose and Application of Flat Fix Spacer

Placing rebar on soft and compressible surfaces, such as ceilings covered with polystyrene foam, has always been a challenge for construction professionals. The spacers placed on these surfaces often sink due to the movement of workers, material transport, and concrete pouring, leading to an inconsistent concrete cover under the reinforcement mesh.

In such cases, thermal rebars with a smaller diameter are typically used on polystyrene-covered surfaces. To address this issue, the Flat Fix Spacer has been designed and manufactured with a flat horizontal plate at its base. This unique feature prevents it from sinking into soft surfaces, providing sufficient support. The Flat Fix Spacer can hold rebar up to 16 mm in diameter within its clamps and, depending on its height, can withstand a point load of 25 to 35 kg.

Features of Flat Fix Spacer

• Can withstand a point load of 25 to 35 kg
• Accommodates rebars up to 16 mm in diameter

How to Use Flat Fix Spacer

The Flat Fix Spacer has two serrated clamps designed to lock and secure the rebar in place. Once the rebar is positioned between the clamps and rests on the spacer’s base, the clamps firmly lock it in place. The distance between the rebar seating and the bottom surface determines the concrete cover over the reinforcement.

A flat plate is integrated at the bottom of the spacer, which must be placed completely horizontally on the surface to prevent it from sinking into the soft substrate.

Consumption Rate of Flat Fix Spacer

• On soft and compressible surfaces: 4 spacers per square meter
• On polystyrene foam: 2 spacers across the width of the foam, spaced 50 cm apart along its length

Important Considerations for Flat Fix Spacer

The Flat Fix Spacer is specifically designed for horizontal surfaces with light reinforcement meshes, such as soft and compressible ceilings. Using this spacer on other surfaces may not be practical, as the flat base could lead to temporary instability.

Although the spacer can hold rebars with diameters ranging from 6 to 18 mm, reinforcement meshes with rebars above 14 mm are classified as medium-weight, and the Flat Fix Spacer may not be suitable for them. However, since no stronger spacer with similar properties is currently available in the Iranian market, it is necessary to calculate the weight of the reinforcement structure and applied forces per square meter. Based on the point load-bearing capacity of the Flat Fix Spacer, the required number of spacers per square meter should be determined.

It is recommended to use the Flat Fix Spacer for reinforcement structures with rebars up to 14 mm in diameter. For larger diameters, stronger horizontal spacers should be used. Additionally, avoid inserting rebar into the plastic spacer with lateral twisting motions, as this may cause the clamps to break.