Somero Enterprises has integrated the "Slump-Sense" real-time concrete flow compensation system into its S-22E laser-guided screeds. In large warehouse floor construction, achieving super-flat tolerances (FF50/FL35) requires a highly consistent concrete slump. However, ready-mix trucks often deliver varying water-to-cement ratios due to transit time and ambient temperature. When the screed passes over wet, high-slump concrete, it sinks; over dry, low-slump concrete, it rides up and leaves voids. This inconsistency leads to surface curling and flatness failures weeks after curing.
The Slump-Sense system mounts a "Forward-Looking Microwave Moisture Sensor" 30 centimeters ahead of the screed plow. The engineering breakthrough is the "Preemptive Flow Modification." The sensor penetrates the fresh concrete to a depth of 100mm, reading the dielectric constant of the mix to calculate the exact water-to-cement ratio 10 times per second.
If the sensor detects a sudden increase in moisture (high slump), the ECU preemptively lowers the screed's vibration frequency by 20% and slightly retracts the plow angle. This prevents the screed from sinking into the fluid matrix and over-working the surface, which causes bleed water to rise. Conversely, if the sensor reads a dry, low-slump mix, the system increases the hydraulic down-pressure and spikes the vibration frequency to fluidize the stiff concrete, ensuring it flows tightly around the reinforcing steel without leaving honeycombing. This closed-loop moisture and flow control increases super-flat floor compliance rates by 35% and eliminates the need for manual slump cone testing on site.
