Pflasterzusammensetzungen mit Regeneriertem Asphalt

Details

Veröffentlichungs-Nr.

EP4799990

Anmeldetag

27. Februar 2026

Veröffentlichung

2. September 2026

Rechtsraum

EP

Abstract

An asphalt paving composition is disclosed containing: 3 to 8 wt.% of a polymer modified bitumen (PmB), 30 to 70 wt.% of a reclaimed asphalt (RA), 27 to 70 wt.% of virgin aggregates, and up to 25 wt.% of optional components. The PmB comprises a virgin bitumen, a styrenic block copolymer (SBC), and optionally at least one additive. The SBC is composed of a block A of vinyl aromatic units, and a block B composed of conjugated diene units. The SBC has a vinyl content of ≤ 15 mol%, and a molecular weight (M_p) of < 150 kg/mol. The RA includes an aged binder and aggregates. The asphalt paving composition incorporates a high level of RA content and still maintains desired viscosity, elasticity, and overall performance.

Anmelder

Firma

Kraton Polymers Nederland B.V.

Land

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