PAM for Construction
Polyacrylamide for tunneling, piling, excavation, and dredging. Slurry treatment, soil conditioning, and construction wastewater management.
Slurry Treatment in Tunneling
In shield tunneling and diaphragm wall construction, PAM is essential for slurry treatment. It flocculates fine clay particles, enabling water recovery and slurry reuse. This reduces disposal costs and environmental impact. Typical dosage: 50-200 g/m³ of slurry.
Piling & Excavation
During deep piling and excavation, PAM conditions drilling mud and slurry, improving separation of solids and water. It stabilizes borehole walls and reduces fluid loss, enabling cleaner water discharge and lower treatment costs.
Dredging Operations
In dredging projects, PAM accelerates settling of dredged material in settling ponds, enabling faster water recovery and reduced pond volume. It also improves dewatering of dredged sludge on belt presses.
Soil Stabilization
PAM can be mixed into soil to improve cohesion and reduce erosion in temporary slopes and embankments. It also improves dust control on construction sites by binding soil particles together.
Construction Wastewater
Construction site runoff contains suspended solids, cement dust, and clay. Anionic PAM flocculates these contaminants, enabling water reuse for dust suppression or safe discharge to municipal systems.
Typical Applications
| Application | PAM Type | Dosage |
|---|---|---|
| Shield tunneling slurry | APAM 12-18M MW | 50-200 g/m³ |
| Diaphragm wall slurry | APAM 15-20M MW | 100-300 g/m³ |
| Dredging settling | APAM 8-12M MW | 1-3 mg/L |
| Site wastewater | APAM 8-12M MW | 2-5 mg/L |
Need PAM for Your Construction Project?
We supply PAM to major tunneling and dredging contractors in China. Bulk discounts available for large projects.
Request a Quote