USE OF EXPANDED CLAY AGGREGATE (ECA) FOR RAILWAYS, … · especially high-speed railways such as...

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USE OF EXPANDED CLAY AGGREGATE (ECA)

FOR RAILWAYS, METRO RAIL & HIGH-SPEED RAIL

( BULLET TRAINS )


Importance Of Expanded Clay Aggregate (ECA) In Construction Of Railways, Metro Rail & High-speed Rail ( Bullet Trains )

Improves stability of

surrounding area

and structures

Serves as a light fill

material to reduce

subgrade settlement



Usefulness Of Expanded Clay Aggregate (ECA) in the Reconstruction of Railways, Metro Rail & High-speed Rail

( Bullet Trains )

To correct settlement defects

To improve load-bearing capacity

To increase leveling precision


Designing Objectives Expanded Clay Aggregate (ECA) Layers:

To block capillary

action due to

water rise

To function as

an excellent

drainage layer

To provide

excellent thermal

and sound

insulation


Expanded Clay Aggregate (ECA) Improves the Stability of Soil by Minimizing the Load Impact :

Properties To Be Considered

Ground water and

open water level

Pore water

pressure

Live and dead

loads

Inclination of soil layers or

ground surface or soil layers

Adjacent foundations

and buildings

Required safety factor of

structure against collapse


Expanded Clay Aggregate (ECA) in Reducing Railway Noise With Porous Sound Absorbing Concrete Slab.

Due to accelerated urbanization, industrialization and economic

growth in the developed countries, rail transportation

especially high-speed railways such as bullet trains have

undergone a rebirth in development level and scale across

these countries

There are several methods to mitigate this but some of these

methods are highly expensive to build and maintain.

This brings about the introduction of porous concrete slab

using Expanded Clay Aggregate (ECA) in the construction of rail

lines.

The acoustical/sound absorption properties of porous concrete

materials with various gradations, aggregate types, compaction

indexes, and fiber contents are determined in the laboratory.



Expanded Clay Aggregate (ECA) in Reducing Railway Noise With Porous Sound Absorbing Concrete Slab.

The results show that porous concrete that uses an Expanded

Clay Aggregate (ECA) can not only bring about good acoustical

absorption property but also satisfies the mechanical

requirements.

The gradation of the Expanded Clay Aggregate (ECA) has a great

effect on the acoustic/sound absorption performance of the

porous concrete, with high aggregate gradation of 2 - 3 mm.

The compaction index and fiber content affect both the

acoustic/sound absorption and strength property of the porous

concrete, with value of 0.4% and 1.8% respectively.

Porous sound-absorbing concrete slabs can immensely reduce

railway noise at different train speeds and that the amount of

the noise reduction changes with speed.



Benefits of using Expanded Clay Aggregate (ECA) in the construction of Railways:

It improves stability of surrounding

area and structures

It simplifies and reduces compaction

It reduces load on the supporting

soil subgrade

It reduces the horizontal thrust on

the supporting structures

It reduces settlement

It provides excellent insulation

It acts as an excellent drainage

material

It helps reducing railway noise with

porous sound-absorbing concrete slab


Rivashaa Eco Design Solutions P. Ltd.

C I N : U74999GJ2016PTC092832

Manufactured In India

[email protected]

+ 91 9879167919 | + 91 79 26462688

| 26463395

3rd Floor, Royale Manor, Law Garden,

Ellis bridge, Ahmedabad - 380006,

Gujarat, India.

IGBCMS170069

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USE OF EXPANDED CLAY AGGREGATE (ECA) FOR RAILWAYS, … · especially high-speed railways such as...

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