The Egyptian Co. for Manufacturing Perlite & Vermiculite

Perlite

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1- LOOSE – FILL MASONRY INSULATION

High heating and cooling costs and the need for energy conservation have resulted in increasing the awareness of the thermal performance of building envelopes. A Key to perlite's outstanding performance is the fact that all block cores, voids and mortar are completely field with free flowing Perlite. With Perlite convective loops within the block is field, thus eliminating convective eating flow (chimney effect) and subsequent heat losses.

CHARACTERISTICS OF PERLITE LOOSE - FILL INSULATION

It is free flowing and will uniformly and completely fills all cores and voids in masonry wall units.
It is inorganic and is rot, vermin and termite resistant.
It is noncombustible with a fusion point of 1260-1280° C .
It is improved the fire rating of a 20 Cm concrete block from 2 hours to 4 hours (improvement 100%.)

EXECUTION

Installation

The insulation shall be installed in the following location
In the core of all exterior hollow.
In the cavity between all exterior.
Between exterior masonry walls.

Proceeding Of Insulation

All holes and openings in the wall through which insulation can escape shall be permanently sealed.
The loose Perlite shall be poured directly (core via a hopper) in the top of the wall at any convenient interval (not in excess 6 m) Wall sections under doors and windows shall be filled before sills are placed.
Insulation must remain dry

2- PERLITE CONCRETE INSULATION

Perlite aggregate combined with ordinary Portland cement and water produces an ultra–lightweight thermal and sound insulating fire resistance concrete for roof decks, lightweight floor fills, insulating structural floor decks, curtain wall system, either prefabricated or insulation Perlite cement blocks and a variety of other permanent insulating applications.

Mix Designs

Mix designs 1 and 2 (table 3) are specifically for insulating purposes and should not be used for load bearing structures. They are ideal for the manufacture, of lightweight block for use in the construction of non-load bearing infill walls

	Perlite Ltrs .	Cement kg	Water Ltrs.	Air Entraining agent Ltrs.
1	1000	250	270	4.1
2	1000	300	300	4.1
3	1000	350	300	4.1
4	1000	400	320	4.1
5	1000	450	330	4.1
6	1000	500	350	4.1

Physical Properties of Perlite Concrete Insulation

	Compressive strength kg/cm 2	Dry Density kg/m3
1	5-6	400-450
2	8-10	500-550
3	12-14	600-650
4	18-22	700-750
5	26-35	880-830
6	40-60	950-1000

The Perlite concrete insulation can be made with dry density of 400 up to 1000 kg/m . The lower the density the higher the insulating value. Table 4 demonstrates the physical properties of the mix designs in table 3

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