Non-Explosive Concrete Demolition Powder | Silent Cracking Agent for Reinforced Concrete

Product Specifications:

• Brand: EXPANDAG

• Type: HSCA-1 (Optimized for High-Pressure)

• Temperature: 25°C - 35°C (Standard Formula)

• Key Function: Silent, vibration-free demolition of reinforced structures.

• Primary Target: Urban areas, building foundations, and bridge pillars.

The Professional Choice for Urban Demolition

Topking Concrete Demolition Powder is the safest solution for breaking reinforced concrete and foundations in city centers. It is 100% silent and vibration-free, allowing you to easily separate rebar from concrete without the need for heavy machinery or noisy jackhammers. This specialized version of our Expansive Mortar series is engineered to overcome the high tensile strength of reinforced structures.

Urban Demolition: HSCA vs. Traditional Methods

How to Separate Rebar Efficiently?

Unlike traditional demolition that crushes both steel and concrete together, our HSCA agent expands within pre-drilled holes, creating wide cracks that separate the concrete from the steel reinforcement (rebar). This allows for clean recycling of the steel and minimizes manual labor on demolition sites.

Typical Demolition Scenarios

• Controlled demolition of reinforced concrete pillars and columns.

• Bridge deck removal and pier demolition in sensitive waterways.

• Indoor building renovation where vibration could damage the structure.

• Massive concrete foundation breaking for highway expansions.

(Controlled cracking effect on high-strength concrete foundation)

🛠️ Matched Drilling System:

For reinforced concrete, precise drilling is required. We recommend using Topking Hand Held Rock Drills and 32mm-38mm bits to create the optimal pressure distribution pattern.

Concrete Demolition FAQ

Q: Can HSCA really break high-grade reinforced concrete?

A: Yes. It generates over 120MPa of force, which is 30-40 times the tensile strength of high-strength concrete. It is more than enough to crack any reinforced structure for easy mechanical removal.

Q: What is the best hole spacing for concrete foundations?

A: For reinforced concrete demolition, we recommend a spacing of 20cm to 30cm. A denser hole pattern ensures the cracks are deep enough to expose the rebar completely.

Q: Is it safe to use inside existing buildings?

A: Yes. Because it is a vibration-free concrete breaker, it won't cause structural micro-cracks to the rest of the building, unlike traditional hydraulic hammers or blasting.

Q: How long does it take for the demolition powder to crack concrete?

A: Typically, visible cracks appear within 2 to 8 hours depending on the ambient temperature and concrete hardness. Full structural separation usually occurs within 24 hours.

Q: How much HSCA powder is required per cubic meter of concrete?

A: On average, you will need approximately 10kg to 15kg of powder per cubic meter (m³) of reinforced concrete. The exact amount depends on the hole diameter and rebar density.

Q: How can I prevent a "blow-out" during the expansion process?

A: To prevent sudden ejection, always match the product version to the correct ambient temperature, use the proper water-to-powder ratio, and never pour the mixture into overheated drill holes.

Q: Can it be used for horizontal drilling in concrete walls?

A: Yes. For horizontal or overhead holes, we recommend using a slightly thicker paste and plastic grout sleeves (cartridges) to ensure the agent remains in full contact with the concrete.

Q: Is this silent cracking agent environmentally safe for urban areas?

A: Absolutely. It is 100% eco-friendly, non-toxic, and produces no dust, noise, or toxic fumes, making it the ideal solution for demolition in high-density residential or sensitive zones.

Q: What is the shelf life and storage requirement for EXPANDAG?

A: The shelf life is 1 year when stored in a dry, cool place in its original vacuum packaging. Avoid moisture exposure, as it will reduce the expansion force of the agent.