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 SPWS SPWS SYSTEM

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/m 3 cement 3 – 25 cm of 4.5 Mpa resiliant concrete slab

THE ULTIMATE SOLUTION THE ULTIMATE SOLUTION SPWS SPWS 1 – – 10 cm of EPS 10 cm of EPS or or 40 cm of compacted sand 40 cm of compacted sand 1 2 – – 25 cm of 4.5 25 cm of 4.5 Mpa Mpa resilient concrete slab resilient concrete slab 2

Asphalt Concrete SPWS SPWS

TRANSPORTATION AND MATERIALS - for 1 km of pavement, 7m wide (as per European Standards) = 10 m 3 = 20ton = EPS machine on truck SPWS Asphalt Concrete Sand EPS or 225 1 225 225 175 180 175 105 135 175 90 630 Total 505 Total 400 Total 176 Total - 37% 100% - 20% - 72%

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

Profit Efficiency MORE MORE Building Capacity M2 with the same budget

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’ ’S CBR S CBR VALUE THAN IT

SPWS GLOBAL APPLICABILITY GLOBAL APPLICABILITY • 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 SPWS SYSTEM’ ’S INNOVATIONS S INNOVATIONS SYSTEM • 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- -base base EPS blocks are being used as pavement and placed directly on the ground, then and placed directly on the ground, then overlaid by a high strength concrete slab. overlaid 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 - - WATERTIGHT JOINT WATERTIGHT JOINT SEEPAGE

A seepage watertight joint inductor is placed on the steel watertight joint inductor is placed on the steel A seepage 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 equipment. quipment. High strength concrete is poured and finished with lightweight e In case of a road construction slipform slipform paving machines can be used paving machines can be used . In case of a road construction

Plastic film under the slabs reduces friction Plastic film under the slabs reduces friction over the base during concrete shrinkage. over 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- -ballasted track has been ballasted track has been the problems in this type of structure. The non implemented in various countries such as Germany and Japan. Currently, this ently, this implemented in various countries such as Germany and Japan. Curr solution contained a large variety of structural designs. solution contained a large variety of structural designs. 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 In non • • replaced by a layer of reinforced concrete slab or a layer of bituminous tuminous replaced by a layer of reinforced concrete slab or a layer of bi mixture (Figure 1.). The first group of solution which consists of rails, of rails, mixture (Figure 1.). The first group of solution which consists 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 solutions consist of s consist of typically called line slab. For the second group, these solution 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 monoblock monoblock sleepers ( sleepers (prestressed prestressed concrete) concrete) sleepers (reinforced concrete) and (Figure 2.). (Figure 2.). Figure 2: concrete sleepers Figure 2: concrete sleepers • • The line slab solution, presents a wide range of structural designs. This variety results from gns. This variety results from The line slab solution, presents a wide range of structural desi • • 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 different types of line different types of line imposed on the line. For example, in figure 3. are presented six design design