Safecrete Headings replaces subjective manual testing with embedded IoT sensors and proven maturity analytics based on the ASTM C1074 standard. The system continuously monitors the temperature-time profile of curing shotcrete to calculate compressive strength in real time, with field tests demonstrating 95-98% correlation with Uniaxial Compressive Strength (UCS).
How It Works
System Components
| Component | Function | Key Specs |
|---|---|---|
| Embedded Sensor | Temperature measurement in curing shotcrete | Epoxy encapsulated, magnet activation, 56-day battery, long-range RF |
| Edge Gateway | Receives RF data, buffers, transmits to cloud | Industrial-grade enclosure, Wi-Fi backhaul, 24hr battery backup |
| Cloud Platform | Maturity calculation, strength estimation, alerting | ASTM C1074 engine, real-time dashboards, configurable thresholds |
| Integration Layer | Connects to mine dispatch and notification systems | REST API, SMS/email alerts, mobile push notifications, audit trail |
Embedded sensor
Edge gateway
Cloud dashboard
Data Flow
Network Architecture
Sensors communicate with the edge gateway over long-range RF underground, requiring no existing network infrastructure in the heading. The gateway connects to the mine’s Wi-Fi network and transmits data to the surface. All cloud communications use TLS 1.3 encryption. The gateway buffers data locally during connectivity interruptions and synchronises automatically when the link is restored, ensuring no data loss in intermittent network conditions.