THE ULTIMATE SOLUTION THE ULTIMATE SOLUTION GLOBAL APPLICABILITY - - PowerPoint PPT Presentation

CONCRETE SLAB FOUNDATION SYSTEM CONCRETE SLAB FOUNDATION SYSTEM

THE ULTIMATE SOLUTION THE ULTIMATE SOLUTION

GLOBAL APPLICABILITY GLOBAL APPLICABILITY

• CONCRETE SLAB

CONCRETE SLAB FOUNDATION FOUNDATION SYSTEM SYSTEM SPWS SPWS

Scientific Pavement World Systems Scientific Pavement World Systems

SPWS SPWS

CONCRETE SLAB FOUNDATION SYSTEM CONCRETE SLAB FOUNDATION SYSTEM

• FASTER

FASTER

• CHEAPER

CHEAPER

• EASIER

EASIER

• BETTER

BETTER

ASPHALT

(as per European Standards)

1 – 40 cm crusher run sub base layer 2 – 30 cm gravel and sand base layer 3 – 16 cm bitumen layer 4 – 10 cm asphalt layer

CONVENTIONAL CONCRETE PAVEMENT

(as per European Standards)

1 – 40 cm of crusher run (tout venant) base layer 2 – 15 cm layer of a lean concrete layer (poor concrete) of 100 kg/m3 cement 3 – 25 cm of 4.5 Mpa resiliant concrete slab

1 1 – – 10 cm of EPS 10 cm of EPS or

• r 40 cm of compacted sand

40 cm of compacted sand 2 2 – – 25 cm of 4.5 25 cm of 4.5 Mpa Mpa resilient concrete slab resilient concrete slab

THE ULTIMATE SOLUTION THE ULTIMATE SOLUTION

SPWS SPWS

Concrete Asphalt

SPWS SPWS

Asphalt 225 180 135 90 SPWS 225 Concrete 225 105

TRANSPORTATION AND MATERIALS - for 1 km of pavement, 7m wide

(as per European Standards)

630 Total 100% 505 Total

• 20%

176 Total

• 72%

= 20ton 400 Total

• 37%
• r

175 = 10 m3 175 Sand EPS 175 = EPS machine on truck 1

Earthworks Materials acquisition Manpower Days of construction Maintenance of construction yards Equipment on the site Expensive works

LESS LESS

Profit Efficiency Building Capacity M2 with the same budget

MORE MORE

SPWS SPWS

TWO LAYERS ONLY TWO LAYERS ONLY

SCIENTIFIC MATHEMATICAL CALCULATIONS SCIENTIFIC MATHEMATICAL CALCULATIONS LOADS ARRIVING AT THE SOIL FOR AN INFERIOR LOADS ARRIVING AT THE SOIL FOR AN INFERIOR VALUE THAN IT VALUE THAN IT’ ’S CBR S CBR

• Roads

Roads and and Highways Highways

• Ports,

Ports, Airports Airports and and Railways Railways

• Streets

Streets and and Parking lots Parking lots

• Industrial Factories

Industrial Factories and and Commercial Areas Commercial Areas

• Warehouses

Warehouses

• Refrigerated Warehouses

Refrigerated Warehouses and and Food Warehouses Food Warehouses

SPWS

GLOBAL APPLICABILITY GLOBAL APPLICABILITY

SPWS SPWS

SYSTEM SYSTEM’ ’S INNOVATIONS S INNOVATIONS

• EPS base

EPS base

• Plastic film

Plastic film

• Load transmission steel plates

Load transmission steel plates

• Joint inductor

Joint inductor

EPS blocks are being used as pavement EPS blocks are being used as pavement-

• base

base and placed directly on the ground, then and placed directly on the ground, then

• verlaid by a high strength concrete slab.
• verlaid by a high strength concrete slab.

LOAD TRANSFER STEEL PLATES LOAD TRANSFER STEEL PLATES

OUR UNIQUE LOAD TRANSFER STEEL PLATES ENSURES VERTICAL AND HORIZONTAL ROTATION OF THE SLABS

Before pouring the concrete, load transmission steel Before pouring the concrete, load transmission steel plates must be placed on either sides of the future joints plates must be placed on either sides of the future joints and over a plastic film. and over a plastic film.

Joint inductor Joint inductor

SEEPAGE SEEPAGE -

• WATERTIGHT JOINT

WATERTIGHT JOINT

A seepage A seepage watertight joint inductor is placed on the steel watertight joint inductor is placed on the steel plates to ensure the joint's opening on its exact location. plates to ensure the joint's opening on its exact location.

High strength concrete is poured and finished with lightweight e High strength concrete is poured and finished with lightweight equipment. quipment. In case of a road construction In case of a road construction slipform slipform paving machines can be used paving machines can be used.

Plastic film under the slabs reduces friction Plastic film under the slabs reduces friction

• ver the base during concrete shrinkage.
• ver the base during concrete shrinkage.

MOTORWAY MOTORWAY

Works in progress

FACTORY FACTORY

PORT PORT

THIS PAVEMENT WAS ORDERED FOR 25 TON AND LATER ON LOADS UNTIL 300 TON WHERE PLACED ON THE PAVEMENT WITHOUT CAUSING ANY DAMAGES TO IT.

Maritime port at Vitória (Brazil) This pavement was built for 25 tons load capacity and is bearing 300 tons loads.

RAILWAYS RAILWAYS

• The railway line solutions are characterized as

The railway line solutions are characterized as follows: follows:

• Ballasted line;

Ballasted line;

• Mixed support line;

Mixed support line;

• Not ballasted line

Not ballasted line The ballasted line is the oldest and is still today, a The ballasted line is the oldest and is still today, a structural solution. Its composition appears to have structural solution. Its composition appears to have evolved very little over two hundred years, evolved very little over two hundred years, however, from the last forty years has been however, from the last forty years has been discussed the efficiency of its use for several discussed the efficiency of its use for several reasons. reasons.

RAILWAYS (2) RAILWAYS (2)

• Alternative solutions to the ballasted line have emerged with th

Alternative solutions to the ballasted line have emerged with the aim to reduce e aim to reduce the problems in this type of structure. The non the problems in this type of structure. The non-

• ballasted track has been

ballasted track has been implemented in various countries such as Germany and Japan. Curr implemented in various countries such as Germany and Japan. Currently, this ently, this solution contained a large variety of structural designs. solution contained a large variety of structural designs.

• In non

In non-

• ballasted track, the ballast layer in the ballasted track is usu

ballasted track, the ballast layer in the ballasted track is usually ally replaced by a layer of reinforced concrete slab or a layer of bi replaced by a layer of reinforced concrete slab or a layer of bituminous tuminous mixture (Figure 1.). The first group of solution which consists mixture (Figure 1.). The first group of solution which consists of rails,

• f rails,

supported by sleepers laid or embedded in a concrete slab, being supported by sleepers laid or embedded in a concrete slab, being typically called line slab. For the second group, these solution typically called line slab. For the second group, these solutions consist of s consist of sleepers made of reinforced concrete, supported directly on a sleepers made of reinforced concrete, supported directly on a bituminous layer, which replaces the ballast. bituminous layer, which replaces the ballast.

RAILWAYS (3) RAILWAYS (3)

• There are currently two types of concrete sleepers in particular

There are currently two types of concrete sleepers in particular the bi block the bi block sleepers (reinforced concrete) and sleepers (reinforced concrete) and monoblock monoblock sleepers ( sleepers (prestressed prestressed concrete) concrete) (Figure 2.). (Figure 2.).

• Figure 2: concrete sleepers

Figure 2: concrete sleepers

• The line slab solution, presents a wide range of structural desi

The line slab solution, presents a wide range of structural designs. This variety results from

• gns. This variety results from

different disposal possibilities and integration of the elements different disposal possibilities and integration of the elements face the constraints face the constraints imposed on the line. For example, in figure 3. are presented six imposed on the line. For example, in figure 3. are presented six different types of line different types of line design design

RAILWAYS (4) RAILWAYS (4)

• The use of non

The use of non-

• ballasted line as a solution for new railway lines enables a red

ballasted line as a solution for new railway lines enables a reduction in uction in maintenance costs and increased stability of the line, allowing maintenance costs and increased stability of the line, allowing greater safety regarding the greater safety regarding the movement of carriages with increasingly higher speeds. movement of carriages with increasingly higher speeds.

• Regarding the foundation platform, it is necessary that this pre

Regarding the foundation platform, it is necessary that this present deformations reduced sent deformations reduced to minimize the differential settlements throughout the project to minimize the differential settlements throughout the project life. life.

• THE SOLUTION

THE SOLUTION – – THE SYSTEM SLAB THE SYSTEM SLAB-

• FOUNDATION

FOUNDATION SPWS SPWS

• The base being formed by E.P.S. blocks (High density polystyrene

The base being formed by E.P.S. blocks (High density polystyrene at 30/kg / m3 at least) at 30/kg / m3 at least) placed directly over the natural ground. placed directly over the natural ground.

• Over it a plastic film of 0.02 cm, which function is only to all

Over it a plastic film of 0.02 cm, which function is only to allow the concrete to retract

• w the concrete to retract

freely without anchoring and preventing it to crack while concre freely without anchoring and preventing it to crack while concrete retracts, te retracts,

• High strength resilient concrete is immediately

High strength resilient concrete is immediately layed layed down supported by our unique steel down supported by our unique steel load transfer plates. load transfer plates.

• Our unique steel load transfer plates, which are anchored altern

Our unique steel load transfer plates, which are anchored alternately on one side and the ately on one side and the

• ther of the concrete slabs, do allow transmission of the stress
• ther of the concrete slabs, do allow transmission of the stresses caused by loads to all the

es caused by loads to all the adjacent slabs and accept differential settlements of the ground adjacent slabs and accept differential settlements of the ground up to 25mm, but always up to 25mm, but always ensuring the perfect continuity of the pavement. ensuring the perfect continuity of the pavement.

• The end of the rails should never coincide with the joints.

The end of the rails should never coincide with the joints.

• The price of the base in E.P.S. should be around

The price of the base in E.P.S. should be around € € 5.00 /M2 5.00 /M2

• TWO LAYERS ONLY. THE SLEEPERS MAY HAVE A FIXING SOLUTION

TWO LAYERS ONLY. THE SLEEPERS MAY HAVE A FIXING SOLUTION

S SOME OME TECHNICAL ADVANTAGES TECHNICAL ADVANTAGES

Load reduction on the natural ground from 1800 kg/m3 to 30kg/m3

• Building the concrete slabs directly over the EPS or

compacted sand foundation (Two layers only)

• Effective transmission of loads to contiguous slabs (80% of

the loads are transmitted to the next slabs)

• All components are locally manufactured none to be

imported

• Unreinforced concrete and fibbers free
• Seepage joints – no sealing of joints
• Cheaper works

Cheaper works – – savings up to 1/3 of total cost savings up to 1/3 of total cost

• Faster works

Faster works – – up to 40% faster up to 40% faster

• E.P.S. Base cost should be around

E.P.S. Base cost should be around € € 5,00 5,00

WHAT WE DO

• PROJECT OF THE FORMULA FOR THE COMPOSITION OF HIGH

RESILIENT CONCRETE

• ADVISE AND CALCULATE THE RIGHT BASE TO BE USED
• DIMENSIONING PROJECT OF THE PAVEMENT AND ALL

DIMENSIONING PROJECT OF THE PAVEMENT AND ALL MATHEMATICAL CALCULATIONS MATHEMATICAL CALCULATIONS

• SPECIFICATIONS FOR THE STEEL LOAD TRANSFER PLATES, IT’S

DIMENSIONS, SHAPES, SIZES AND ENDURANCE

• SUPERVISE THE MAKING OF THE STEEL LOAD TRANSFER PLATES
• SPECIFICATIONS FOR THE JOINT INDUCTORS IT’S DIMENSIONS,

SHAPES, SIZES AND ENDURANCE

• SUPERVISE THE MAKING OF THE JOINT INDUCTORS
• GUIDE THE EXACT LOCATION OF THE STEEL LOAD TRANSFER PLATES

AND THE JOINT INDUCTORS

• SUPERVISE THE PAVEMENT WORKS “in situ”

CONTACTS CONTACTS

Head Office: The Penthouse, Carolina Court, Guiseppe Cali Street Ta’Xbiex XBX 1425 - Malta e-mail: front.desk@i front.desk@is s-

• com

com.biz .biz Lisbon Office: Avenida Marquês de Tomar 46, 6º 1050-156 Lisbon - Portugal e-mail: is.com@netcabo.pt is.com@netcabo.pt Mob: + 351 91 406 11 94 JOÃO MIGUENS MENDES

www.is www.is-

• com.biz

com.biz

SPWS

Scientific Pavement World Systems CONCRETE SLAB FOUNDATION SYSTEM

• FASTER
• CHEAPER
• EASIER
• BETTER