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<strong>ROADBOND</strong> <strong>HE</strong><strong>ROADBOND</strong> <strong>HE</strong>ELASTOMERIC POLYMER DISTILLED BITUMEN MASTIC IN CAKES FOR HOTSEALING OF JOINTS AND CRACKSMarking1CATEGORY<strong>HE</strong>ELASTOMERICCHARACTERISTICSCARATTERISTIC<strong>HE</strong>PROBLEMReference standard:EN14188-1ECO GREENASBESTOSFREETARFREEENVIRONRMENTALCHLORINEFREENONRECYCLABLE DANGEROUSWASTEEXHAUSTEDOIL FREEMETHOD OF USEHOT APPLIED(BOILER)HOW TO LENGT<strong>HE</strong>N T<strong>HE</strong> USEFUL LIFE OF T<strong>HE</strong> ROAD PAVINGAND SC<strong>HE</strong>DULE T<strong>HE</strong> RENOVATIONThrough the cracks in the road paving, due to the “pumping” generated by the road traffic, rainwater transports to the surface the fine parts of the layers not bound to be substrate, thus causingthe progressive collapse of the road paving.Preventive maintenance of the road lengthens its life and allows the renovation work to be scheduledover time; the sealing of the cracks that form on the bituminous conglomerate paving inparticular is one of the most important measures to prevent degradation.Polymer distilled bitumen mastic2SOLUTION<strong>ROADBOND</strong> <strong>HE</strong> It is the most practical, effectiveand longlasting remedy for the repair andhot sealing of cracks.The volume contraction and the setting timeduring the installation phases are considerablylower than the systems based on the use ofcold sealants containing volatile parts.<strong>ROADBOND</strong> <strong>HE</strong> is a bituminous mastic to bepoured hot, CE marked and complying to EN14188-1; it consists of a mixture of distilled bitumen,SBS thermoplastic elastomeric polymersand tackifying resin.<strong>ROADBOND</strong> <strong>HE</strong> is elastic even at low temperatures,has a high superficial hardness, isresistant to heat and tenaciously adheres to thesurfaces it is applied on.<strong>ROADBOND</strong> <strong>HE</strong> is provided in cakes packagedin cardboard boxes with silicone-coated wallsto facilitate the detachment during use and maybe stored for an unlimited period.APPLICATION FIELDS<strong>ROADBOND</strong> <strong>HE</strong> is used to seal cracks morethan 5 mm wide.<strong>ROADBOND</strong> <strong>HE</strong> is used on horizontal layingsurfaces for hot sealing of cracks in road pavingwhere it is possible to manually pour or usesuitable sealing machinery.<strong>ROADBOND</strong> <strong>HE</strong> is also used to seal concretepaving joints.METHOD OF USEIn road paving, before undertaking pouringoperations, it is necessary to carefully clean thejoint or damaged area by eliminating any foreignbodies; for longlasting sealing, eliminate of anytrace of damp by heating the crack with thesuitable thermal lance.In case of sealing the joints of cement strips orin case of dusty surfaces, it is necessary to previouslytreat the crack with the primer INDEVERPRIMER E.EN 14188-1Class N1The <strong>ROADBOND</strong> <strong>HE</strong> cakes, after being takenout of the packaging, must be melted in asuitable melting furnace, which must be fittedwith a stirrer and temperature gauge. The meltingand pouring temperature advised is 160℃and the melted material may be maintained at150÷170 °C for maximum 6÷8 hours. To avoidthe gelatinization of the melted mastic, whichwould make it useless, the temperature of 180℃must not be exceeded; it may be maintainedat this temperature for a maximum of 2 hours.Considering that the mastic has a volume mass(density) of about 1 kg/dm 3 and that it does notcontain volatile parts, 0.1 kg per metre of lengthis used to seal a crack of 1 cm² of section.R6 th DIVISION
TECHNICAL CHARACTERISTICSRing and ball softening pointtemperatureStandardEN 1427T<strong>ROADBOND</strong> <strong>HE</strong>>120 °CVolume mass (density)at 25°CEN 13880-1±5%1.02 kg/dm 3ElasticreturnUEAtc±5%100%HardnessASTM D 224050 indexCone penetrationat 25°CEN 13880-2>45 dmmStability to heat / penetrationat 25°CEN 13880-4>40 dmmStability to heat / penetrationand return at 25°CEN 13880-4>60%Stability to heat at 60°C for 5h 75° angleEN 13880-5
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