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: Joints in slabs resting on ground

 
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sjgandhi
SEFI Regulars
SEFI Regulars


Joined: 26 Jan 2003
Posts: 20

PostPosted: Tue Nov 18, 2003 7:55 am    Post subject: : Joints in slabs resting on ground Reply with quote

Dear  Colleagues,

I would like to  know about provision of joints in slabs resting on ground as under.

1. For  very large area of slab , is it necessary to  
provide expansion joints.? Do they perform
satisfactorily?

2. For cast in situ concrete panels , which method
of casting  viz, Line method  in alternate bays or
chess board pattern is preferable?  what sort of
filler material is suitable for contraction joints?
In factory floors , abrasion of floor is prevalent.
what type of material property is required for
abrasion rersistant?  Otherwise problem of dirt
accumulation may be created.

3. For nominally reinforced rcc panels in ground
for slabs, is it necessary to anchor dowels in
adjacent panels?

4. Is it necessary to provide rcc slabs on ground
for factory floors?

Sunil Gandhi
Structural  Engineer
sjgandhi@sancharnet.in

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PostPosted: Tue Nov 18, 2003 2:18 pm    Post subject: : Joints in slabs resting on ground Reply with quote

DEAR SIR
I THINK THESE DESIGN,&CONSTRUCTION FACTORS ARE WELL
DEFINED IN ONE OF THE IS CODES
SURYA NARAYANA SARIPALLI
FROM HYDERABAD
--- sjgandhi@sancharnet.in wrote:
Quote:
Dear  Colleagues,

I would like to  know about provision of joints in
slabs resting on ground as under.

1. For  very large area of slab , is it necessary to

provide expansion joints.? Do they perform
satisfactorily?

2. For cast in situ concrete panels , which method
of casting  viz, Line method  in alternate bays
or
chess board pattern is preferable?  what sort of

filler material is suitable for contraction
joints?
In factory floors , abrasion of floor is
prevalent.
what type of material property is required for
abrasion rersistant?  Otherwise problem of dirt
accumulation may be created.

3. For nominally reinforced rcc panels in ground
for slabs, is it necessary to anchor dowels in
adjacent panels?

4. Is it necessary to provide rcc slabs on ground
for factory floors?

Sunil Gandhi
Structural  Engineer
sjgandhi@sancharnet.in













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