NEW RANGE OF EN

STANDARD ROAD

KERBS FROM VYARA

ABOUT THE NEW RANGE OF KERBS FROM

VYARA- FIRST IN INDIA

• Vyara has recently introduced kerbstones conforming to European norms.

• The Kerbs, mostly conforming to EN 1340 (mandated in some Western

European Countries) are manufactured using a Vacuum wet press process

with extremely high Hydraulic pressure and simultaneous vacuuming.

• In this process of manufacture, the wet concrete is pressed by force of over

400 tons and at the same time the water that's not necessary for the proper

curing of the cement is eliminated by vacuum. The WCR of the concrete is by

that reduced to 0.4 which gives the cured flag excellent physical properties.

CHARACTERISTICS OF THESE KERBS

Characteristics Benefits

Very High Strength Long life and value retention of the project. Allows

vehicles to climb over

Large Sizes Fewer joints -- better looks

Extremely good finish Better aesthetics

High abrasive resistance Lower need for repair and replacement

Low water absorption Much reduced blackening and maintenance of kerbs

Extremely wide range of

products

Allows for most of the details to be catered to

TYPES OF KERBS

There are 4 basic profiles to the most common road kerbs used:

• Half Batter (HB)

• Bull Nose (BN)

• Splay (SP)

• Square (SQ)

Then there are also other supporting types of kerbs like

• Transition Kerbs (Left hand and Right hand)

• Dropper Kerbs (Left hand and Right hand)

• Offlet Kerb

• Angle Kerbs or Corner Kerbs (Internal and external)

• Radius Kerbs (Internal and external)

• Quadrant Kerb

• Dished Channel

• ‘L’ Profiled Kerbs (HB and BN)

which when used together, offer a fairly complete solution to the kerbing needs, whether in the neighborhood, streets or in highways.

HALF BATTER (HB) (STANDARD) PROFILE

The half battered shape is the most

elegant and commonly used shape. The

main purpose of the shape is to deflect

the traffic back on to the carriage way

and protect the pedestrians. This shape

normally forms the bulk of the kerbstones

used. The 'sloping back' profile enables

road rollers to operate right up to the edge

of the pavement without scratching or

damaging the kerb face when the

surfacing is laid. They are normally used

where a footpath is provided adjacent to

the carriageway.

These provide an element of check

sufficient to warn motorists that they are

dangerously close to the edge of the

carriageway.

Half batter road kerbs at Palava City, Lodha

45O

SPLAY (SP) PROFILE

The purpose of the splayed blocks is

to allow access to vehicular traffic

over itself. These are typically used to

access is to given for demarcated

parking spaces, or where vehicles may

need to climb on to verges in case of

emergencies.

For safety reasons, these are not used

when a footpath is present.

Splay

Transition kerbs

BULL NOSE (BN) PROFILE

Bull nosed Kerbs are used to

provide access to vehicles from

carriageways to a private driveway or

an access point across pedestrian

footpath crossing. These allow for

vehicles to cross over most easily.

AVAILABLE WET PRESS KERB SIZES

Profile Length (mm) Height (mm) Thickness (mm)

Half Batter 600/500 450/375/300 150/125/100

45o

Splay 600/500 450/375/300 150/125

Bull Nose 600/500 450/375/300 150/125/100

Square 600/500 450/375/300 150/125/100

Half Batter (MCGM) 500 325 165/150

ACCESSORY KERBS- TRANSITION KERB

Very few pieces of these Kerbs are used

normally to link two different kerb

profiles.

In case of transition from HB to bull nose,

the Dropper kerbs are used as shown on

next slide

Splay Kerb

Left hand Transtion Kerb HB to SP

Half Batter Kerb

Transition Kerb HB to SP (Right Hand)

Splay Kerb

Left hand Transtiion Kerb HB to SP

Half Batter Kerb

Transition Kerb usage

ACCESSORY KERBS- DROPPER KERB

Dropper kerbs are used to link Half

battered kerbs to bull nose kerbs.

These special pieces allow for

aesthetically pleasing seamless

transition. They are available from

Vyara in 1:9 gradient, and are most

commonly seen as 'dropped crossings‘.

Right hand Dropper Kerb HB to BN

Half Batter Kerb

Bull Nose Kerb

Dropper Kerb HB to BN (Left Hand)

Bull nose

Dropper

Half batter

Dropper Kerb Usage

Half Batter Kerb

Right hand Dropper Kerb HB to BN

Bull Nose Kerb

Offlet Kerb

Dropper Left Kerb

Dropper Right Kerb

Centre Bullnosed

Kerb

ACCESSORY KERBS- OFFLET KERBS

Offlet kerbs allow standing water to drain away

from carriageway to other landscape features.

Offlet Kerb

Offlet Kerb HB

ACCESSORY KERBS- RADIUS KERBS

Radius kerbs are

available in various

radii in concave and

convex shapes with

a half batter profile

Radius Kerb Internal

(concave)

Radius Kerb External

(convex)

Radius internal

Radius external

ACCESSORY KERBS- RADIUS KERBS

The radius is specified in

metres and it represents

what the radius would be if a

complete circle was made

with the kerbs. To calculate

the radius of the bend (and

hence what kerbs we need)

the formula used is

Radius = (L/2)2 + B2

2B

where points 1 and 2 are

where the bend starts and

stops. Points 1 and 2 are

always taken from the face of

kerb

External Radius kerbs 8 m radius @ Palava , Lodha

Radius Kerb

ACCESSORY KERBS- ANGLE KERBS

Angles/ corner andQuadrant helpprovide kerbingtreatment details forseveral roadfeatures such asdivider, Pedestriansafety bays, parkingspaces and the like.

Angle Kerb (Internal) Angle Kerb (External)

Angle internal

Angle external

ACCESSORY KERBS- QUADRANT KERBS

Angles and Quadrant help provide

kerbing treatment details for several

road features such as divider,

Pedestrian safety bays, parking

spaces and the like.

Quadrant Kerb

Quadrant Kerb

Quadrant Kerb

ACCESSORY KERBS- DISHED CHANNEL

Water Dished Channel

Dished Channels are normally used

adjacent to kerbs towards the

carriage way. These aid in smooth

drainage of water. Sometimes, they

are also used to drain water in other

landscape features.

BN Kerb

Water Dished Channel

ACCESSORY KERBS- ‘L’ PROFILED KERBS

L profiled Kerb

Drain Cover

Specially made to form trench

and to be able to place

precast drain /trench covers

on top.

L profile Half batter kerbs

Drain Cover

AVAILABLE ACCESSORY KERB SIZES

Type & Profile Length

(mm)

Height

(mm)

Thickness

(mm)

Transition HP to SP(LH/RH) 600 300 150/125/100

Dropper HB to BN (LH/RH) 915 255/150 125

Offlet 600 300 150/125/100

Radius HB Internal

(Radius 3/6/10 mtr.)

780 255 125

Radius HB External(Radius 1,2,4,6,8,10,12 mtr.)

780 255 125

Angle HB Internal and External 300 255 125

Quadrant HB 300 255 -

Dished Channel Kerbs 600/500 300 125/100

L Profiled BN and HB 600 300 150/125

Typical Road Section

VYARA can suggest the best types of kerbs for your applications

and help you use the various kerbs profiles optimally to get the

best details for your sites

CONTACT US

Head Office

S-1 Shankeshwar Complex,Kailashnagar,

Sagrampura, Majura Gate, Surat

Ph-0261-3017000

info@vyaratiles.in; Website: www.vyaratiles.in

Surat

Naresh Loh- 09328245397

Mumbai

Kalpesh Shah- 09322285672

Ahmedabad

Haresh Patel 093740 34284