Because of perlite's outstanding insulation, light
weight, fire retardant and sound control characteristics and its being
rot, vermin and termite resistant perlite is widely used in the following
Loose fill insulation
Because of Perlite's outstanding insulating characteristics
and light weight, it is widely used as
a loose-fill insulation. In this application, free flowing perlite loose-fill
masonry insulation is poured into the cavities of concrete block where
it completely fills all cores, crevices, mortar areas and ear holes
What is the benefits of perlite loose fill insulation?
- It is non combustible with a fusion point of approximately
- It is inorganic and is rot, vermin and termite resistant.
- It improves the fire rating.
- It is non settling and supports its own weight in
masonry wall cavities and masonry block cores.
- It may be easily installed without special training
Portland cement and gypsum plasters
Perlite can also be used as an aggregate in Portland
cement and gypsum plasters for exterior applications and for the fire
protection of beams and columns.
Traditionally plaster had been made from a mix of gypsum plaster and sand.
The problem with sand plaster is that in a fire the sand explodes and
cracks, and can be easily destroyed.
In contrast, perlite plaster can offer a product which is both lightweight
- lightweight: it weighs approximately 60% less than
ordinary sand plaster.
- Thermal Insulation: 4 times more resistant to heat
transmission than sanded plaster thus permitting savings in air conditioning
- Fire rating: Non- combustible and non- toxic provides
up to 5 hours fire protection with minimum weight and thickness.
- Noise Reduction - Because of its porous structure
it doesn't permit sound reflection, it is sound absorbent and reduces
sound transmission between partitions.
Mixing of plaster Perlite:
For every two bags (100ltr per bag) of Perlite-C one sack of cement (50kg)
and 20-40lts lime plus water
Why Perlite Insulation?
Perlite underfloor insulation is an inorganic product that doesn't rot,
doesn't support combustion nor provide a habitat for rodents. Because
of its neutral PH, the product doesn't foster corrosion in piping and
electrical wiring that may be in the underfloor area and it is greatly
reduce sound transmission form floor to floor, form floors to walls and
from underfloor piping system.
When used for underfloor insulation, a water repellent, dust suppressed
perlite specially produced for this application is used.
It can be used:
under floating concrete floors,
floating board floors.
Perlite concrete aggregate combined with portland cement
and water produces a lightweight insulating concrete used for lightweight
roof decks, floor fills, lightweight structural decks and many other applications
Benefits of concrete roofdeck insulating
- not combustible.
- superior fire ratings .
- lightweight and durable .
- reduce sound transmission .
- Excellent insulating value
- Slope to Drain
|PHISICAL PROPERTIES OF PERLITE CONCRETE
||8 - 10
||12 - 15
||17 - 20
||22 - 25
||25 - 30
which can form in chimneys when hot gases impinge on cold chimney linings,
can create two serious problems. The first is he formation of combustible
tars on chimney linings that may cause chimney fires. The second is the
formation of sulphite solutions that can attack chimney morter which can
lead to leakage, staining and possibly even chimney collapse.
Other reasons for relining chimneys are to deal broken or cracked masonry
work and to improve draft by reducing flue size.
- Perlite is inorganic.
- Doesn't support combustion.
- Exhibits excellent thermal insulting properties over wide range of
- Doesn't affected by most acids.
blocks consist of Portland cement and expanded Perlite and it is same
in shape and dimension as ordinary blocks.
Advantages of Perltie Blocks:
- Weighing much less than the half of traditional concrete
- Perlite concrete blocks provide excellent noise absorption.
- perlite concrete is non-toxic, rot, vermin and termite
resistant and non-combustible.
- It is as permanent as the structure, which contains
- transportation, handling and installation is easier
|Thickness of the Plaster Perlite
for Covering (mm)
Lightweight perlite insulating concrete can play a multiple
role in undergroundpipe and duct installations . Perlite concrete insulation
can also serve as a supporting envelope . This latter advantage is of
special importance when pipe or ducts are laid under roadways , parking
lots or other areas subject to traffic. Perlite concrete pipe insulation
provides a monolithic
( seamless ) insulation for the length of a pipe or duct. Additionally
, Perlite insulating concrete is permanent, fire proof , rot proof and
vermin proof .