Ribbed Slabs & Half Slabs
Proven time-savers and cost-cutters.
Ribbed Slab
Ribbed Slab
Half Slab
Half Slab
Typical Span: 3 – 4 meters
Jackbilt ribbed slabs and half slabs are proven time-savers and cost-cutters. The concrete upstands of ribbed slabs and the metal dowels of half slabs serve similar functions – they facilitate handling and installation and serve as positive ties between the slabs and concrete topping.
Only 1 shoring needed for every 3 meter span.
Ribbed and half slabs are directly paintable.
No need for drop ceilings.
No need for drop ceilings.
Typical Applications
Townhouses
Commercial Buildings
Hospitals
Speed, Ease, Efficiency.
Taytay Doctors Hospital
Jackbilt half slabs speed up construction. No need to set up and dismantle formworks, shoring, and scaffolds.
– A.P. Canlas Builders
South City Medical Center, Cavite
GICC Building, Bataan
Speed, Ease, Efficiency.
Taytay Doctors Hospital
South City Medical Center, Cavite
GICC Building, Bataan
Jackbilt half slabs speed up construction. No need to set up and dismantle formworks, shoring, and scaffolds.
– A.P. Canlas Builders
Jackbilt ribbed slabs were easy to install as promised. Project completion was 20% faster versus traditional construction.
– A senior architect of Forte Realty
Tierra Verde Residences, Cavite by Forte Realty
Tierra Verde Residences, Cavite by Forte Realty
Jackbilt ribbed slabs were easy to install as promised. Project completion was 20% faster versus traditional construction.
– A senior architect of Forte Realty
Labor costs went down 10%. Slab construction was around 20% faster versus traditional construction. Jackbilt half slabs are great time savers.
– Senior engineer, EEI
Hi Precision Tower, Makati. Contractor: EEI
Hi Precision Tower, Makati. Contractor: EEI
Labor costs went down 10%. Slab construction was around 20% faster versus traditional construction. Jackbilt half slabs are great time savers.
– Senior engineer, EEI
Technical Specifications
Ribbed Slab Cross Section
| CROSS SECTIONAL PROPERTIES | |
|---|---|
| Width mm | 1,196 |
| Height of plank mm | 60 |
| Cross section net area mm2 | 88,261 |
| Top fiber to neutral axis (Ytop) mm | 87 |
| Bottom fiber to neutral axis (Ybot) mm | 43 |
| Moment of inertia (lx) mm4 | 486 x 103 |
| Self weight of product, kg/m2 | 312 |
| CONCRETE PROPERTIES | |
|---|---|
| Concrete density, kg/m3 | 2,400 |
| Strength @ 28 days, MPa | 41 |
| Strength @ release, MPa | 28 |
| Modulus of elasticity @ service, Ec, MPa | 30 x 103 |
| PRESTRESSING STEEL | |
|---|---|
| 7 wires, high tensile, helical strand | |
| Ultimate strength, fpu, MPa | 1,860 |
| Yield strength, fpy, MPa | 1,630 |
| Modulus of elasticity, Ep, MPa | 195 x 103 |
| Nominal diameter, D mm | 9 |
| Area of wire, Ap mm2 | 55 |
| CONCRETE TOPPING |
|---|
| To produce a flat surface and solid slab section, provide concrete topping with a minimum strength @ 28 days, f’c, = 21 MPa (3,000 psi) in space between ribs. |
| To increase capacity of the ribbed slab, provide additional structural topping with a minimum strength @ 28 days, f’c, = 21 MPa (3,000 psi) of 50 mm from the top of rib. |
| Wire mesh reinforcement: 6 mm diameter at 150 mm o.c. |
Ribbed Slab Connection Details
Ribbed Slab
Typical Installation
For more information about
Ribbed Slabs
Technical Specifications
Half Slab Cross Section
| CROSS SECTIONAL PROPERTIES | |
|---|---|
| Width mm | 1,197 |
| Height of plank mm | 70 |
| Cross section net area mm2 | 82,236 |
| Top fiber to neutral axis (Ytop) mm | 34 |
| Bottom fiber to neutral axis (Ybot) mm | 35 |
| Moment of inertia (lx) mm4 | 33 x 106 |
| Self weight of product, kg/m2 | 197 |
| CONCRETE PROPERTIES | |
|---|---|
| Concrete density, kg/m3 | 2,400 |
| Strength @ 28 days, MPa | 41 |
| Strength @ release, MPa | 27 |
| Modulus of elasticity @ service, Ec, MPa | 30 x 103 |
| PRESTRESSING STEEL | |
|---|---|
| 7 wires, high tensile, helical strand | |
| Ultimate strength, fpu, MPa | 1,860 |
| Yield strength, fpy, MPa | 1,630 |
| Modulus of elasticity, Ep, MPa | 195 x 103 |
| Nominal diameter, D mm | 9 |
| Area of wire, Ap mm2 | 55 |
| CONCRETE TOPPING |
|---|
| Provide concrete with a minimum strength @ 28 days, f’c, = 21 MPa with 50 mm height from top of plank. |
| Wire mesh reinforcement 6 mm diameter at 150 mm o.c. |
Half Slab Connection Details
Half Slab
Typical Installation
