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| Brand Name: | shhous |
| Model Number: | High-Temp Type，Low-Temp Type |
| MOQ: | 1000kg |
| Price: | USD 0.5‑0.8/kg |
| Supply Ability: | 1000000kg per Month |
Asphalt road crack sealant, also named road joint sealant or pavement sealant, is a hot-melt elastic sealing material. It is modified from heavy-duty asphalt with SBS polymer, rubber powder, anti-aging agent and stabilizer. Supplied in solid blocks, it forms an elastic sealing layer after melting and cooling. It blocks rainwater, de-icing salt and silt from penetrating into pavement base and stops crack propagation. It is a key material for preventive road maintenance. Five grades (high-temperature, normal, low-temperature, cold, severe-cold) are available for service temperature -40℃～80℃, complying with JT/T 740-2015 standard.
| Item | High‑Temp Grade | Normal Grade | Low‑Temp Grade | Cold Grade | Severe‑Cold Grade |
| Cone Penetration (0.1mm) | ≤70 | 50‑90 | 70‑110 | 90‑150 | 120‑180 |
| Softening Point (℃) | ≥90 | ≥80 | ≥80 | ≥80 | ≥70 |
| Flow Value (mm) | ≤3 | ≤5 | ≤5 | ≤5 | ≤5 |
| Elastic Recovery (%) | 30‑70 | 30‑70 | 30‑70 | 30‑70 | 30‑70 |
| Low‑Temp Tensile Test | 0℃, 25%, 3 cycles pass | ‑10℃, 50%, 3 cycles pass | ‑20℃, 100%, 3 cycles pass | ‑30℃, 150%, 3 cycles pass | ‑40℃, 200%, 3 cycles pass |
1. Asphalt pavement: Sealing transverse and longitudinal cracks of highways, national & provincial roads, municipal roads.
2. Cement-concrete pavement: Filling expansion joints, construction joints and settlement joints.
3. Special pavements: Bridge decks, factory roads, parking lots, plazas, airport runways.
4. Projects: Pavement preventive maintenance, old road crack repair, joint sealing for new-old pavement connection.
1. Crack Cleaning: Remove dust, gravel and debris inside cracks by crack-cleaner and air blower. Ensure cracks are dry and clean. Dry wet positions thoroughly.
2. Material Melting: Put solid sealant blocks into melter, heat to 180-200℃ and stir evenly. Avoid over-heating and carbonization.
3. Crack Pouring: Pour molten sealant into cracks with pouring gun. Fill fully and compactly. Keep surface slightly 1-2 mm higher than pavement to compensate cooling shrinkage.
4. Cooling & Curing: Allow natural cooling until full curing.
5. Traffic Opening: Remove excess material after curing, then reopen traffic. Extend cooling time under low-temperature conditions.
Address
Shouguang City, Shandong Province, China
Tel
86--15762572277
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