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COLPAVE™
Elastomer Modified Microsurfacing Emulsion
Product Data Sheet 2012/08
DESCRIPTION
COLPAVE™ is a specially formulated medium set cationic microsurfacing bitumen emulsion modified with SBR latex for
mixing with selected continuously graded crushed aggregate, cement and water.
USES
COLPAVE™ emulsion is specially formulated for mixing in a concrete mixer and applying by hand. These mixes are suitable
for resealing parking areas, sidewalks and intersections. Can also be used for manufacturing cold pothole patching mixes and
as a tack coat for geotextiles.
PROPERTIES
COLPAVE™ emulsion has an extended mixing time of approximately four minutes, allowing the preparation of small sized
mixes that can be placed before the mix sets. The SBR latex in the COLPAVE™ improves the temperature susceptibility of
the binder as well as the binder/aggregate adhesion, which reduces the risk of aggregate loss, especially during the early life
of the seal.
SPECIFICATIONS
COLPAVE ™ emulsion is manufactured from a 70/100 penatration grade bitumen and conforms to the AC-E1 specification
for Polymer Modified Emulsions:
REQUIREMENT
EMULSION PROPERTIES
Max
63
65
710 µm
-
0.1
150 µm
-
0.5
Binder content, % m/m
Residue on sieving, g/100 ml
TEST METHOD
Min
Particle charge
Positive
Sedimentation after 60 rotations
MB-22
MB-23
MB-24
Nil
SANS 309
RECOVERED BINDER PROPERTIES
Softening point, ºC
≥ 48
-
MB-17
Elastic recovery @ 15ºC
≥ 50
-
MB-4
DIRECTIONS FOR USE
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Localised cracks must be sealed and fatigue cracks repaired prior to placing of microsurfacing prepared with
COLPAVE™.
Microsurfacing will not prevent cracks from reappearing.
No tack coat is needed and neither is pneumatic rolling required.
The mix is easily applied with rubber squeegees and textured with a damp hessian drag before it sets.
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The typical emulsion content is 200 litres of COLPAVE™ per m of aggregate for crusher dust that conforms to the
requirements of the Colto (Fine slurry) Medium grading specification.
Microsurfacing prepared with COLPAVE™ is designed to be opened to traffic within 90 minutes of placing during normal
weather conditions with ambient temperatures not exceeding 35°C, providing that the reactivity of the aggregate is
favourable.
Suitability of the crusher dust must be determined by a Colas laboratory.
Head Office
Cape Town PO Box 82 Eppindust 7475 Tel +27 (0)21 531 6406 Fax +27 (0)21 531 5514 Email
[email protected] 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.