High weatherability composite modified asphalt for high-speed railway asphalt concrete waterproof sealing layer
A technology of composite modified asphalt and asphalt concrete, which is applied in building components, building insulation materials, buildings, etc. It can solve the problem that the effectiveness of the waterproof sealing layer has not yet been studied, narrow the gap between modifier and asphalt density, and increase the modified asphalt system. Viscosity and other issues can be improved to improve thermal storage stability, reduce tire pollution, and improve stability
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[0037] Example 1
[0038] A composite modified asphalt (1#) for high-weather-resistant high-speed railway asphalt concrete waterproof sealing layer, the composite modified asphalt is used for high-speed railway asphalt concrete waterproof sealing layer, and contains the following components according to weight parts:
[0039]
[0040] The modified compound is a mixture of styrene-butadiene-styrene copolymer, namely SBS copolymer, reclaimed rubber particles, anti-aging agent and interface enhancer.
[0041] among them:
[0042] The base pitch is one or more of natural pitch, petroleum pitch or coal tar pitch.
[0043] The modified compound includes the following components in parts by mass:
[0044]
[0045] The SBS copolymer is a linear SBS copolymer or a star-shaped SBS copolymer or a mixed copolymer of both, with an average molecular weight of 80,000 to 120,000 g / mol.
[0046] The reclaimed rubber is a reclaimed rubber particle obtained by desulfurization of rubber powder processed by w...
Example Embodiment
[0054] Example 2
[0055] A composite modified asphalt (2#) for high-weather-resistant high-speed railway asphalt concrete waterproof sealing layer, the composite modified asphalt is used for high-speed railway asphalt concrete waterproof sealing layer, and contains the following components according to weight parts:
[0056]
[0057] The modified compound is a mixture of styrene-butadiene-styrene copolymer, namely SBS copolymer, reclaimed rubber particles, anti-aging agent and interface enhancer.
[0058] among them:
[0059] The base pitch is one or more of natural pitch, petroleum pitch or coal tar pitch.
[0060] The modified compound includes the following components in parts by mass:
[0061]
[0062] The SBS copolymer is a linear SBS copolymer or a star-shaped SBS copolymer or a mixed copolymer of both, with an average molecular weight of 80,000 to 120,000 g / mol.
[0063] The reclaimed rubber is a reclaimed rubber particle obtained by desulfurization of rubber powder processed by w...
Example Embodiment
[0071] Example 3
[0072] A composite modified asphalt (3#) for high-weather-resistant high-speed railway asphalt concrete waterproof sealing layer, the composite modified asphalt is used for high-speed railway asphalt concrete waterproof sealing layer, and contains the following components according to weight parts:
[0073]
[0074] The modified compound is a mixture of styrene-butadiene-styrene copolymer, namely SBS copolymer, reclaimed rubber particles, anti-aging agent and interface enhancer.
[0075] among them:
[0076] The base pitch is one or more of natural pitch, petroleum pitch or coal tar pitch.
[0077] The modified compound includes the following components in parts by mass:
[0078]
[0079]
[0080] The SBS copolymer is a linear SBS copolymer or a star-shaped SBS copolymer or a mixed copolymer of both, with an average molecular weight of 80,000 to 120,000 g / mol.
[0081] The reclaimed rubber is a reclaimed rubber particle obtained by desulfurization of rubber powder proce...
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