What is Micro Concrete?

January 10, 2025

What is Micro Concrete?

Micro concrete is a thin layer of cement-based material that can be applied on a variety of surfaces to achieve a desired and decorative finish. It is ideally applied in thin layers with a thickness that ranges from barely 2mm to 3mm.

Micro concrete is a pre-mixed, non-shrink, cement-based material that consists of specially selected aggregates, cement & other additives.

When traditional concrete cannot be poured, it is designed to be used.

Micro concrete is usually used in structural repair, renovation, or construction where high strength & durability are required.

It repairs cracked structures without heavy machinery, making it cost-effective and ideal for hard-to-reach spots.

Characteristics of Micro Concrete:

1. High Strength: Micro concrete is designed to achieve high compressive strength,

2. Non-Shrink: It is formulated to minimize shrinkage, ensuring that it does not crack or pull away from the substrate as it cures.

3. Followability: Micro concrete is highly flow able, allowing it to be poured into complex shapes, gaps or areas with limited access without the need for compaction.

4. Rapid Curing: Micro concrete typically has a quick setting & curing time, which allows for faster project completion.

5. Low Permeability: The dense composition of micro concrete gives it low permeability, which can help resist water penetration.

Applications of Micro Concrete:

1. Structural Repairs: Micro concrete is widely used in the repair and strengthening of damaged concrete structures, such as columns, beams & slabs.

2. Underwater Repairs: Due to its followability and strength, micro concrete is often used for underwater repairs of piers, jetties & other marine structures.

3. Precision Grouting: It can be used in grouting applications where precise, high-strength placement is required.

4. Thin Layer Applications: Micro concrete is ideal for thin layer applications, such as overlaying existing concrete surfaces to improve their strength and durability.

How to apply Micro Concrete?

1. Surface preparation

Micro concrete can only be applied when the surface is dry and free from any grease or dirt. Prior to its application on to any surface whether concrete or steel, it is essential to ensure that the surface is cleaned.

2. Mixing

Micro concrete has a lesser water requirement, it is necessary to adhere to a ratio of 1:8 of water to micro concrete while preparing its mix. Once the water and micro concrete have been added together they need to be stirred gradually and constantly to achieve a serviceable mix.

3. Pouring

Pouring needs to happen immediately is because waiting for too long could result in the mixture drying up. The mixture is poured quickly to achieve the ideal consistency and flow during application.