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Hollowcore Flooring is a Precast Prestressed Concrete Slab with tubular voids which run through the full length of the slab, thereby reducing the weight of the unit. With the benefit of prestressing and low self weight, longer spans can be achieved for the same loads or greater loads for the same depths.
Building with Confidence
The use of Precast Concrete Hollowcore Flooring is a highly cost effective solution that fits easily into any structural system such as steel or concrete frame or indeed masonry construction. The units themselves are manufactured at a width of 1200mm and depths of 150, 200, 250, 300, 350 and 400mm.
Hollowcore Slab
Benefits Of Using Hollowcore Floor Slabs
• Quick installation • Eliminates on site formwork and steel fixing• Units can be grouted immediately after
installation• Stable working platform • High load capacity • Long spans.
• High levels of inherent fire resistance• Excellent sound resistance• Manufactured offsite to rigorous quality
standards• Progress on site is not weather dependant• Can be designed to incorporate notches,
splays, balconies etc.
floodprecast.ieHilltown, Oldcastle, Co. Meath, Republic of Ireland.T: +353 (0)49 8541477 F: +353 (0)49 8541311W: www.floodprecast.ie E: [email protected]
floodprecast.co.uk43 Temple Row, Birmingham B2 5LS, United Kingdom.T: +44 (0)845 6801417 F: +44 (0)845 6801419W: www.floodprecast.co.uk E: [email protected]
Hollowcore Slab01. Hollowcore Section Properties.02. Typical joint at adjoining hollowcore.03. Typical end bearing detail.04. Typical side bearing detail.05. Typical end bearing detail. 215mm internal blockwall.
Hilltown, Oldcastle, Co. Meath, Republic Of Ireland.T: +353 (0)49 8541477 F: +353 (0)49 8541311W: www.floodprecast.ie E: [email protected]
Job Title: HollowcoreDrawing Title: Typical side bearing detailContractor/Client: Flood PrecastScale: 1.10Drawing No: 200-01-04
mesh in top ofstructural screedStructural Screed
Tie Steel ToEngs Details
25mm Side Bearing
Hollowcore
Hilltown, Oldcastle, Co. Meath, Republic Of Ireland.T: +353 (0)49 8541477 F: +353 (0)49 8541311W: www.floodprecast.ie E: [email protected]
Job Title: HollowcoreDrawing Title: Typical end bearing detailContractor/Client: Flood PrecastScale: 1.10Drawing No: 200-01-03
mesh in top ofstructural screedStructural Screed
Tie Steel ToEngs Details
100mm End Bearing
Hollowcore
Hilltown, Oldcastle, Co. Meath, Republic Of Ireland.T: +353 (0)49 8541477 F: +353 (0)49 8541311W: www.floodprecast.ie E: [email protected]
Job Title: HollowcoreDrawing Title: Typical joint at adjoining hollowcoreContractor/Client: Flood PrecastScale: 1.10Drawing No: 200-01-02
Structural Screed
Hollowcore
Mesh in top ofstructural screed
Hilltown, Oldcastle, Co. Meath, Republic Of Ireland.T: +353 (0)49 8541477 F: +353 (0)49 8541311W: www.floodprecast.ie E: [email protected]
Job Title: HollowcoreDrawing Title: Section PropertiesContractor/Client: Flood PrecastScale: 1.15Drawing No: 200-01-01
150mm Slab (High Density)*Self Weight = 300kg/m2
1155
1197
150
121
121
150mm Slab (Standard)*Self Weight = 245kg/m2
200mm Slab (High Density)*Self Weight = 300kg/m2
1155
1197
150
1160
1197
200
121 80
121
6157
178
40
128
32
189 189 189 189 178
250mm Slab (Standard)*Self Weight = 332kg/m2
1160
1197
250
178
40
3032
148
189 189 189 189 178
300mm Slab (Standard)*Self Weight = 391kg/m2
1150
1197
300
260
40
3738
185
280 280 260
350mm Slab (Standard)*Self Weight = 395kg/m2
1150
1197
350
260
40
3738
235
280 280 260
400mm Slab (Standard)*Self Weight = 470kg/m2
1150
1197
400
260
40
3738
285
280 280 260
Hilltown, Oldcastle, Co. Meath, Republic Of Ireland.T: +353 (0)49 8541477 F: +353 (0)49 8541311W: www.floodprecast.ie E: [email protected]
Job Title: HollowcoreDrawing Title: Typical end bearing detail 215mm internal blockwallContractor/Client: Flood PrecastScale: 1.10Drawing No: 200-01-05
mesh in top ofstructural screed
Structural Screed
90mm EndBearing
215
90mm EndBearing
Hollowcore
215mm Blockwork
01 02
03
05
04
Precast Slab
Depth (mm)
Structural Topping Depth (mm)
Total Depth (mm)
Self Weight(kN/sq.mm)
Effective Spans (m)
4m 5m 6m 7m 8m 9m 10m 11m 12m 13m 14m 15m 16mSuper-Imposed Unfactored Live Load Capicities kN/m²
150 0 150 3.00 15.50 11.00 7.00 4.50200 0 200 3.00 15.50 12.00 10.00 7.50 6.00 4.50250 0 250 3.32 22.50 18.00 14.50 11.50 9.50 7.00 5.00 4.00300 0 300 3.91 17.00 14.50 12.50 11.00 8.00 6.00 4.50 3.00400 0 400 4.70 17.50 15.50 13.50 10.50 8.00 6.50 5.00 4.00150 75 225 4.80 19.00 15.00 10.50 5.50 2.00200 75 275 4.88 14.00 10.50 8.50 6.50 5.50 4.00250 75 325 5.20 21.00 16.50 13.00 11.00 9.00 8.00 5.50 3.50300 75 375 5.79 15.50 13.00 11.00 9.50 9.00 6.50 4.00 2.50400 75 475 6.58 16.50 14.00 12.50 11.00 9.50 7.00 5.00 4.00
SAFE LOAD TABLE FOR HOLLOWCORE
Values shown are for guidence. Consult Flood Precast Technical Office regarding specific design queries.
The units themselves are manufactured at a width of 1200mm and depths of 150mm, 200mm, 250mm, 300mm and 400mm.
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