Sand layer underlying paving slab or interlocking blocks, Civil Engineering

Assignment Help:

Question

What is function of a sand layer underlying paving slab or interlocking blocks?


Answer

Normally after laying of sub-base layer of paving slab or interlocking blocks, 30mm thick sand bedding is screeded and tamped over pavement area. Then paving slab is laid horizontally with joints of 2-3mm wide and is laid in uphill direction. Following completing laying of paving slabs, sand used for filling joints is increase over surface of units and brushed into joints such that all joints are completely filled. Paving slabs are after that bedded into final position by using plate vibrators.
Sand layer serves similar purpose of normal blinding layer under concrete structure-

(i) Provide level and flat surface for paving slab or interlocking blocks to lay on;

(ii) Protect the foundation for example underground sub grade and sub-base layer against adverse outside conditions as in bad weather during construction of the laying work of paving slab or interlocking blocks.

 


Related Discussions:- Sand layer underlying paving slab or interlocking blocks

Work study, how activity charts and string diagram use in work study?

how activity charts and string diagram use in work study?

Strength of Materials , Need to know about compressive strength test and te...

Need to know about compressive strength test and tensile strength test of cement

What depth is the intensity of pressure zero, A retaining wall with a smoot...

A retaining wall with a smooth vertical back retains a purely cohesive fill. Height of wall is 12 m. Unit weight of fill is 20 kN/m 3 . Cohesion is 1 N/cm 2 . What is the total act

Shear moment diagram, how to draw shear moment diagram for cantileaver beam...

how to draw shear moment diagram for cantileaver beam

Determine the Critical Euler Buckling Load, a) Determine the critical Eule...

a) Determine the critical Euler buckling load of a solid aluminium rod of 12 mm diameter if it has a length of 1.0 m between pin-ended supports. (E = 70000 N/mm2)       b) A

Modern trends in transportation, Modern Trends in Transportation: Rapi...

Modern Trends in Transportation: Rapid urbanization that is taking place in India is putting severe strain on the road system. Modern systems like exclusive bus lanes, light r

Butt weld – from one side vs from both sides, Q. Butt weld – from one side ...

Q. Butt weld – from one side vs from both sides? In the design of butt weld strength, it's normally presumed that its strength is at least equivalent to parent metal. To improv

Determine the active thrust on the wall by culmann method, A retaining wall...

A retaining wall with its face inclined at 75° with horizontal is 10 m high and retains soil inclined at a uniform surcharge angle of 10°. If the angle of internal friction of the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd