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Asphalt & Bitumen

Asphalt & Bitumen
Asphalt & Bitumen

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  • The Role of Polyethylene Wax Powder The Role of Polyethylene Wax Powder

    Polyethylene wax powder is a low molecular weight polyethylene homopolymer or copolymer that is widely used in coatings. The so-called wax means that the polymer is distributed in the form of crystall...

Asphalt & Bitumen

Generally, wax has negative effects on bitumen. Waxes are melt at the high melting point, that reduce the viscosity of bitumen and influence its high-temperature stability. Wax makes the asphalt binders affinity small, that influence the bonding strength and water resistance of asphalt. At low temperature, the wax crystallizes and precipitate, dispersing in the other components, reducing the contact between the molecules. so that the asphalt is brittle and cracking at low temperature.

If selected the suitable high melting point wax, it can not affect the bitumen’s workability even meeting the temperature of pavement. And it can reduce the viscosity of bitumen at high temperature, low the construction temperature, save the energy consumption, and improve the performance of the pavement.

FT wax is sometimes added to bitumen or asphalt concrete mixtures in order to obtain certain positive effects. These products are typical so-called flow improvers mainly used for reducing the asphalt mixing temperature in order to reduce energy consumption and emissions, but also to improve workability.

Adding FT wax in bitumen, it achieves certainly preferred properties like decrease physical hardening index for all bitumens, reduces asphalt mixing temperature and higher stiffness of the pavement.

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