Grameen Sampark Final April 0... - pmgsy

(xii) Can help in conservation of naturally occurring
materials particularly the soils, gravels and
aggregates
Some of the proven areas where ICBP technology has
been successfully applied are listed below [5&6]:
a) Non-Traffic Areas: building premises, footpaths,
balls, pedestrain plaza, landscapes, monuments
premises, premises, public gardens/ parks,
shopping complexes, bus terminus parking areas
and railway platforms, etc.
b) Light Traffic: car parks, office driveway, housing
colony roads, office/ commercial complexes, rural
roads, residential colony roads, farm houses, etc.
c) Medium Traffic: boulevard, city streets, small
market roads, intersections/ rotaries, low volume
roads, utility cuts on arteries, service/ fuel stations,
etc.
d) Heavy and Very Heavy Traffic: containers/ bus
terminals, ports/ dock yards, mining areas, roads in
industrial complexes, heavy-duty roads on
expansive soils, bulk cargo handling areas, factory
floors and pavements, airport pavements, etc.
There are four generic shapes of paving blocks which
correspond to the four different types of blocks, as stated
below [4&5]:
(a) Group A: Paver blocks with plain vertical faces,
which do not key into each other when paved in
any pattern,
(b) Group B: Paver blocks with alternating plain and
curved/ corrugated vertical faces, which key into
each other along the curve/ corrugated faces,
when paved in any pattern,
(c) Group C: Paver blocks having all faces curved or
corrugated, which key into each other along all the
vertical faces when paved in any pattern, and
(d) Group D: 'L' and 'X' shaped paver blocks which
have all faces curved or corrugated and which key
Pradhan Mantri Gram Sadak Yojana
into each other along all the vertical faces when
paved in any pattern.
The generic shapes and groups of paver blocks
identified into four different types are illustrated in
Figure 1.
Group - A
Group - B
Group - C
Group - D
Figure 1: Typical Shapes of Concrete Paver Blocks
The various aspects dealing with materials, construction
and laying of interlocking concrete block pavement etc.
are described in the following sections.
Materials for Interlocking Concrete Block
Pavement
The quality of materials used, strength of cement
concrete, durability and dimensional tolerance of
paving blocks etc., is of great importance for achieving
the satisfactory quality and performance of block
pavements. All these aspects including the block
manufacturing process, which immensely affect the
quality of paving blocks, have been outlined in the
Indian Roads Congress Special Publication [7]. In
addition, a specification on Precast Concrete Blocks for
Paving, has recently been published by the Bureau of
Indian Standards [8].
Paving Blocks
The recommended thickness of blocks; grades of
concrete for various applications; specifications of
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