1. PAVING (PAVER) BLOCKS
1. KERBS
• Kerb forms an edge or a short wall between a pavement and a roadway. It is installed to hold the
raised pavement from the sides and act as a barrier between both.
• Kerbs are often produced as solid, un-reinforced, precast cement concrete units in a variety of
heights, widths, lengths (up to 1m), and shapes to conform with local standards or requirements.
• Kerbs add to the attractiveness of walkways, footpaths, parking lots and streets by providing neat,
straight lines and sharp demarcations between them.
• Kerbs strengthen pavements by confining of flexible pavements made from Paver Blocks, enabling
improved compaction during construction, and helping maintain the integrity of edges under
traffic.
• The added thickness given to edges of concrete pavements by integral kerbs increase strength
and stiffness, reduce deflections induced by traffic loads, and therefore extends pavement life.
• Kerbs assist with storm water drainage and are usually constructed along with Drainage Channels
on roads and highways.
• PBMA members provide kerbs in a variety of shapes, sizes, colours, and finishes.
• Reference Standard: IS 5758:1984 Precast Concrete Kerbs, Channels, Edgings, Quadrants and
Gutter Aprons.
2. DRAINAGE CHANNELS
• Drainage Channels made from unreinforced Precast Cement Concrete provide a durable and
efficient way for water to flow in a specific direction.
• Drainage Channels have usually Square or Dished sections, with a variety of heights and
thicknesses, and lengths up to 1m.
• They can be easily installed along with Kerbs.
• PBMA members provide Drainage Channels in many sizes to suit local requirements.
• Reference Standard: IS 5758:1984 Precast Concrete Kerbs, Channels, Edgings, Quadrants and
Gutter Aprons.
3. CABLE COVERS
• Cable Covers made from Precast Cement Concrete, both reinforced and unreinforced, are used
for covering cables with a view to provide a warning of the presence of an underground electric
cable and to protect cables against blows from excavating tools.
• They act as a protective barrier against damage to buried electricity, telecom and signal cables
eliminating the risk of accidents and costly repairs. They can also be used to locate and identify
other underground services.
• They are generally of two types namely, with Peak or Flat and classified based on the voltage
rating of the cables to be covered.
• Reference Standard: IS 5820:1970 Precast Concrete Cable Covers.
4. MANHOLE COVERS AND FRAMES
• Manhole Covers and Frames made from Precast Steel Reinforced Cement Concrete provide a
substitute for Cast Iron Manhole Covers and Frames which are prone to pilferage and misuse.
• They are available in four grades depending on traffic requirements (Light Duty, Medium Duty,
Heavy Duty and Extra Heavy Duty) with common shapes being Rectangular, Square and Circular.
• Reference Standard: IS 12592:2002 Precast Concrete Manhole Cover and Frame.