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PHYSICAL PROPERTIES
Standard
Nomenclature
Thickness/Weight
i.e. 4.0/700 = 4.0mm thick
x 700 gms/sq.m
Size i.e 1000 x 1500
1000 = width across flutes
1500 = length of flutes
Range of flute widths available
Product Performance
The polypropylene used for the manufacture of Corriform
has the following typical properties:
| PHYSICAL
PROPERTIES |
METHOD |
UNIT |
VALUE |
|
|
|
|
| Density |
ISO 1183 |
g/
cm³ |
0.9 |
|
|
|
|
| MECHANICAL
PROPERTIES |
METHOD |
UNIT |
VALUE |
|
|
|
|
| Flexural
modulus |
ISO
178 |
N/
mm² |
1350 |
| Tensile
strength yield |
ISO R527 |
N/
mm² |
27 |
| Elongated
at yield |
ISO R527 |
% |
8 |
| Izod
impact strength |
|
|
|
| (notched
at 23°C) |
ISO 180 |
Kj/m² |
40 |
| (notched
at -20°C) |
ISO 180 |
Kj/m² |
8 |
| Hardness
Shore D |
ISO 868 |
points |
68 |
|
|
|
|
THERMAL
PROPERTIES |
METHOD |
UNIT |
VALUE |
|
|
|
|
| Vicat softening
point |
ISO 306/A |
°C |
152 |
| HDT (0.46Mpa) |
ISO 75/B |
°C |
100 |
Thermal expansions 1.05x10 mm/mm/c |
Standard
Tollerances
| Thickness |
|
± 0.1mm |
| Weight |
|
± 1.0% |
| Width |
|
± 1.0mm |
| Quantity |
(sheets
per pallet) |
± 0.1% |
| Length |
(standard) |
+ 15.0mm |
|
- 0.0mm |
| (hand
trim) |
± 1.0mm
|
| Off Square
cross corners |
(standard)
|
15.0mm |
| (hand
trim) |
1.0mm
|
Weathering
Corriform requiring extended life must be UV stabilised.
Assuming normal weather conditions for the UK, stabilised
Corriform will last from 5 to 7 years.
Filled Grades
Limestone (CaCo3) filled for a cheaper and more
ductile sheet. Talc filled greater rigidity and
thermal stability.
Print Treating
Where Corriform is going to be printed on or glued
to, it is necessary to etch both surfaces. This
is done by Crona treating the surfaces during the
extrusion process. We guarantee a dyne level of
40 dynes/cm.
Conductive Corriform
Supplied in black only. Surface resistivity 10
OHMS.
Anti-Static Corriform
Supplied in any grade any colour. Surface resistivity
10" OHMS.
Flame Retardant Grade
Corriform extruded with flame retardant additives
and controlled by our ISO 9002 procedures. Complies
with:
• UL 94 method VO
• LPS 1207: Issue 1 - Fire requirements for
protective covering materials LPCB Certificate No
341 a/01. |
|
HEALTH AND SAFETY
HEALTH AND SAFETY - Hazard
Summary
Corriform is a range of extruded corrugated plastic boards
based on Poly-propylene/ethylene copolymer. Various grades
of sheet may contain traces of process residues and may
also contain minor amounts of materials such as antioxidants,
anti-static agents and UV additives.
Special boards can contain large amounts of additives
and the general comments made will also apply to these
materials. Polypropylene has been safely used in large
quantities and in a wide variety of applications since
the early 1960s.
Corriform is chemically unreactive and is generally regarded
as being biologically Inert.
There is no release of any noxious fumes from Corriform
at ambient temperatures. Although Corriform is inert
and can be regarded as harmless, certain boards do Contain
additives which could be harmful and any ingestion should
be avoided.
Corriform is not considered to be a skin sensitiser,
but being fairly hard, cut edges Can have an abrasive
effect on the skin.
HEALTH AND SAFETY - Coloured Grades
The pigments are totally encapsulated in the Corriform
and thus the material does not present any unusual handling
hazard.
When Corriform is heated in air, melting will occur at
165/170 degrees C and decomposition will commence at about
330 degrees C with the release of volatile, lower molecular
weight hydrocarbons. These can be ignited by a flame or
radiant heat source. Once ignition occurs, sufficient
heat will be generated to continue decomposition and provided
sufficient oxygen is present, burning will continue, accompanied
by the release of flaming, molten droplets of polymer.
Like many other organic materials, Corriform will burn
to produce carbon Monoxide, carbon dioxide, water and
carbon (soot) along with a considerable number of breakdown
and oxidation products normally in very low concentrations.
These can include certain aldehydes such as formaldehyde
and acrolein.
Should a fire involving Corriform occur, any commonly
available extinguisher may be used. Powder extinguishers
are very effective in quenching flames. Water sprays are
especially effective in rapid cooling and damping down
a fire.
HEALTH AND SAFETY - Filled Grades
The fillers are totally encapsulated in the Corriform
and thus the material does not present any unusual hazard.
CHEMICAL RESISTANCE
Not attacked by aqueous solutions of salts, acids and
alkalis. Fats, oils and waxes cause only slight swelling.
Up to 60 degrees C it is resistant to very many solvents:
at higher temperatures it is dissolved by aromatic and
halogenated hydrocarbons. It is not resistant to strong
oxidising agents such as nitric acid, fuming sulphuric
acid and halogens. |
PROTECTIVE BENEFITS
The following letter from the polypropylene raw material suppliers
explains technically the protective benefits of the product.
In general, the chemical resistance
of P.P. is excellent and tends only to be attacked by
strong oxidising acids and chlorinated solvents.
* Montell have developed P.P. grades for the production
of "Flexible Polypropylene Membranes" (FPPM's).
Since the launch of these materials into the geomembrane
market, FPPM's have been specified for a number of high
performance solid and liquid containment projects. These
include landfill liners, solar ponds, canal linings, sludge
dams and other projects in which hazardous chemicals,
industrial waste and fertilizers requires containment.
These membranes have been widely used in the UK, where
they have received Environmental Agency approval, Europe,
Scandinavia, South Africa and the USA.
Attached is data, which may assist you with the specific
request from your customer:
Chemical Compatibility of FPPM's.
Chemical Analysis of Leachate used for approval of FPPM's
for landfill liners.
( P.P. exposed for 120 days, degrees
Celsius with no change in properties )
R.A. Gill
( Montell U.K.)
21st January 1998
|
LEACHATE SAMPLE - CHEMICAL ANALYSIS
Laboratory : Geochem Analytical
Services (NAMAS Testing No 1291)
Date of receipt of sample 09/01/96
| CHEMICAL
|
UNITS |
DETECTION
METHOD |
DETECTION
LIMITS |
DETECTED
LEVEL |
|
|
|
|
|
| Calcium |
ppm |
icp |
< 0.05 |
98.87 |
| Cadmium |
ppm |
icp |
< 0.05 |
< 0.05 |
| Chromium |
ppm |
icp |
< 0.05 |
0.13 |
| Copper |
ppm |
icp |
< 0.05 |
< 0.05 |
| Iron |
ppm |
icp |
< 0.05 |
1.15 |
| Mercury |
ppm |
icp |
< 0.05 |
< 0.05 |
| Magnesium |
ppm |
icp |
< 0.05 |
137.20 |
| Manganese |
ppm |
icp |
< 0.05 |
0.60 |
| Nickel |
ppm |
icp |
< 0.05 |
0.15 |
| Lead |
ppm |
icp |
< 0.05 |
< 0.05 |
| Zinc |
ppm |
icp |
< 0.05 |
0.09 |
| Chemical Oxygen Demand |
ppm |
Spectro |
<10 |
3299.00 |
| Total Organic Nitrogen |
ppm |
Spectro |
< 3 |
179.00 |
| Biochemical Oxygen Demand |
ppm |
5 Day ATU |
< 0.5 |
179.00 |
| Ammoniacal Nitrogen In Water
|
ppm |
Colour |
< 0.01 |
860.00 |
| Potassium |
ppm |
Flame P |
< 3 |
328.00 |
| Sodium |
ppm |
Flame P |
< 3 |
2802.00 |
| Total Organic Carbon In Water
|
ppm |
IR |
< 1 |
868.00 |
| Chloride |
ppm |
KONE |
< 5 |
800.00 |
| Nitrite |
ppm |
KONE |
< 0.01 |
0.09 |
| Nitrate |
ppm |
KONE |
< 0.5 |
1.60 |
| Sulphate |
ppm |
KONE |
< 3 |
177.00 |
| Electrical Conductivity |
ms/cm |
Meter |
< 0.001 |
18.08 |
| Ph Value in Water |
|
Meter |
< 0.01 |
7.52 |
| Alkalinity Total |
ppm (CaCO3) |
Titration |
< 1 |
8760.00 |
|
CHEMICAL COMPATIBILITY OF FPP
Liquid Immersion @ 30 degrees
celsius (30 Days)
| SATISFACTORY |
NOT
RECOMMENDED |
|
|
Acetic
Acid (glacial)
Acetic Anhydride (97%)
Acetone
Acrylonitrile
Aluminium Sulphate (38%)
Ammonia Water (Conc)
Ammonium Chloride (30%)
Ammonium Nitrate (50%)
Ammonium Phosphate (Monobasic) (20%)
Ammonium Phosphate (Di-basic) (24%)
Ammonium Sulphate (43%)
Amyl Alcohol
Aniline
Barium Chloride (27%)
Barium Hydroxide (20%)
Benzyl Alcohol
Boric Acid (5%)
Calcium Chloride (50%)
Chloroacetic Acid (25%)
Citric Acid (33%)
Cupric Chloride (50%)
Di-buytl Phthalate
Di-octyl Phthalate
Ethyl Alcohol (Denatured)
Ferric Chloride (15%)
Ferric Sulphate (17%)
Furfural
Glycerine
Hydrochloric Acid
Hydroflouric Acid (40%)
Magnesium Chloride
Methyl Alcohol
Nickel Chloride (33%)
Nickel Sulphate (50%)
Nitric Acid (38%)
Oxalic Acid (10%)
Phenol
Phophoric acid (85%)
Potassium Bi-chromate (20%)
Potassium Chloride (27%)
Potassium Hydroxide (50%)
Potassium Iodide (57%)
Potassium Phosphate (17%)
Potassium Sulphate (11%)
Propanol
Sodium Chloride (25%)
Sodium Hydroxide (46.5%)
Sodium Hypochlorite (20%)
Sodium Nitrate (43%)
Sodium Phosphate (Monobasic) (43%)
Sodium Sulphate (40%)
Sodium Thiosulphate (45%)
Sulphuric Acid (61.5%)
Tannic Acid (61.5%)
Tataric Acid (20%)
Tin Chloride (20%)
Triethanolamin |
Amyl
Acetate
N-butanol
Butyraldehyde
Chloroform
Chlorosulphonic Acid (98%)
Chromic Acid (50%)
Cresol (Meta)
Cychlorohexane
Cyclohexanol
Decalin
Di-ethyl Ether
Ethyl Acetate
Formic Acid (99%)
Iso-butyraldehyde
Iso-propyl ether
Linseed Oil
Methyl Acetate
Methyl Ethyl Ketone
Methyl Isopropyl Ketone
Methyl Methacrylate
Nitric Acid (65%)
Nitrobenzene
N-n-Di-Methyl Formamide
Oil ASTM No. 1
Oil ASTM No. 2
Oil ASTM No. 3
Propyl Ether
N-Propyl Nitrate
Pyridine
Sulphuric Acid (96%)
Tetralin
Toluene
Tri-butyl phosphate
Vaseline Oil
Oleum |
|
CALCULATING CONCRETE VOLUME
Method of calculating concrete volume
used as a base surface 'blinding' when placing steel reinforcement
into an excavated trench to form a reinforced concrete
beam.
Length of trench excavated x Width of trench at base x
Thickness of blinding (thickness of concrete 'blinding'
will in most cases be greater than specified due to uneven
ground surface).
The above calculation gives you a concrete volume x cost
of concrete/m3
The other factor to consider is man-hours used to place
concrete @ £/HR.
All of this said you can place blinding Monday and have
to wait for start of work on this surface until Tuesday.
Using Corriform 'U' shaped former the formed concrete
beam completely encapsulated in polypropylene (protected)
blinding not required!
Note:- Using the traditional 'sides only' method blinding
is used to form a clean flat working surface and to allow
constant cover to the reinforcement steel.
Corriform does all of this and more! |
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