Hollowcore plank is a precast prestressed concrete slab used primarily for structural roof and floor applications. Self consolidating concrete (SCC) is cast over a bed of prestressed wire strands, producing an incredibly strong product that tolerates high load capacities and can be used to cover long spans in construction projects.
The hollowcore panels have continuous voids in them that reduce weight and cost, and also may be used for electrical or mechanical runs. Hollowcore floor plank and roof plank also have excellent fire resistance.
| Model |
Plank Thickness CM Nos of Wire |
10 | 12 | 15 | 18 | 20 | 25 | 30 | 38 |
| D | 8-Φ8.6 | √ | |||||||
| 10-Φ8.6 | √ | √ | √ | ||||||
| 12-Φ8.6 | √ | √ | √ | ||||||
| 14-Φ8.6 | √ | √ | √ | ||||||
| C | 8-Φ9.5 | √ | √ | √ | √ | ||||
| 10-Φ9.5 | √ | √ | √ | √ | √ | ||||
| 12-Φ9.5 | √ | √ | √ | √ | |||||
| 14-Φ9.5 | √ | ||||||||
| B | 6-Φ11.1 | √ | |||||||
| 8-Φ11.1 | √ | √ | √ | √ | √ | ||||
| 10-Φ11.1 | √ | √ | √ | √ | √ | ||||
| 12-Φ11.1 | √ | √ | |||||||
| 14-Φ11.1 | √ | ||||||||
| A | 6-Φ12.7 | √ | |||||||
| 8-Φ12.7 | √ | √ | √ | √ | |||||
| 10-Φ12.7 | √ | √ | √ | √ | √ | ||||
| 12-Φ12.7 | √ | √ | |||||||
| 14-Φ12.7 | √ | ||||||||
| Length (M) | 3-5.1 | 3-6.0 | 4.5-7.5 | 4.8-9.0 | 5.1-10.2 | 5.7-12.6 | 6.9-15.0 | 8.4-18.0 |
| Model | Span（m） | Load（qs） | Remark |
| SP10 | 3.0-5.0 | 3.2---13.1(KN/m^2) | Reference the Atlas of Pre-Stressed Concrete Floor Panel （05SG408）and attachment one |
| SP12 | 3.0---6.0 | 3.2---14.3(KN/m^2) | |
| SP15 | 4.5---7.5 | 2.6---13.2(KN/m^2) | |
| SP18 | 4.8---9.0 | 2.6---15.7(KN/m^2) | |
| SP20 | 5.1---10.2 | 2.3---14.8(KN/m^2) | |
| SP25 | 5.7---12.6 | 2.1---16.2(KN/m^2) | |
| SP30 | 6.9---15.0 | 2.3---15.8(KN/m^2) | |
| SP38 | 8.4---18.0 | 2.8---15.7(KN/m^2) |
