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Colcote S

The document describes a bitumen based stone precoating fluid called COLCOTE STM. It provides details on its uses for precoating stone chips in road surfacing seals to improve adhesion between the stone and binder. Specifications and directions for use are also included.

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Assane Roque
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383 views1 page

Colcote S

The document describes a bitumen based stone precoating fluid called COLCOTE STM. It provides details on its uses for precoating stone chips in road surfacing seals to improve adhesion between the stone and binder. Specifications and directions for use are also included.

Uploaded by

Assane Roque
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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COLCOTE STM

Bitumen based Stone Precoating Fluid

Product Data Sheet 2012/08

DESCRIPTION
COLCOTE S™ is a bitumen based cutback blended from selected petroleum derivatives and a chemical adhesion agent.

USES
COLCOTE S™ is used for precoating stone chips in road surfacing seals to improve adhesion between the stone and binder.
Can be used with:
• All bituminous binders, including bitumen emulsions, without the risk of incompatibility problems.
• All local road stone, including granite and quartsitic aggregates.

PROPERTIES
COLCOTE S™ has excellent adhesion when used with damp or dusty aggregate.
COLCOTE S™ is non-irritating to eyes and skin and odourless after curing.

SPECIFICATIONS
REQUIREMENT
BINDER PROPERTIES TEST METHOD
Min Max
Density @ 25°C, kg/ℓ 0.922 0.928
Dynamic viscosity @ 25°C, cps 75 130 ASTM D4402
Distillation to 360°C, % v/v: ASTM D402
to 190°C 0 15
225°C 15 55
260°C 50 75
316°C 80 95
Residue from distillation to 360°C, % v/v 42 48 ASTM D402
Penetration @ 25°C of residue distilled to 360°C, 0.1 mm 300 - EN 1426

DIRECTIONS FOR USE


1. Aggregate to be precoated should be relatively free of dust. Slightly damp stone will precoat more easily, but wet stone
must be dried out.
2. Add the prescribed quantity of precoating fluid (see table below for typical application rates) to a measured quantity of
aggregate. Mix with front-end loader or concrete mixer until uniformly coated.

Typical application rates for different stone sizes (ℓ/m3)


Stone size 6.7 mm 9.5 mm 13.2 mm 19.0 mm
COLCOTE S™ 14 - 18 13 - 17 12 - 16 11 - 15

3. After precoating, protect the stockpile against rain to prevent run-off. Allow the stone chips to dry for at least 3-4 days
before use. Unlimited stockpile life, but avoid dust contamination.

Head Office
Cape Town PO Box 82 Eppindust 7475 Tel +27 (0)21 531 6406 Fax +27 (0)21 531 5514 Email colas@colas.co.za Website www.colas.co.za
Colas provides the above data sheet in good faith and it is provided without warranty, representation, inducement or licence of any kind; as such Colas shall not be liable for cost, damages or
losses incurred as a result of reliance on the abovementioned information.

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