A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-performance asphalt mixture for steel bridge floor pavement and preparation method thereof
The invention provides a high-performance asphalt mixture for steel bridge floor pavement and a preparation method thereof, aims to solve the problem that the conventional asphalt mixture for steel bridge floor pavement cannot be high in compactness, reliable in high temperature anti-deforming capability, excellent in low temperature deforming capability and high in fatigue-resistant capability at the same time, and belongs to the field of road engineering materials. The asphalt mixture provided by the invention comprises the following components in percentage by mass: 78.8-82.5% of an aggregate, 0.5-2.6% of an asphalt mixture anti-rut agent, 1.8-5.7% of rubber powder, 9.2-12.5% of a cementing material and 0-6.0% of a filler. The preparation method comprises the following steps: firstly, conducting heat preservation on the aggregate, heating a mixer, and then simultaneously adding the aggregate subjected to heat preservation, the asphalt mixture anti-rut agent and the rubber powder into the heated mixer for mixing; secondly, adding the cementing material for mixing; finally, adding the filler for mixing. The asphalt mixture provided by the invention is a novel asphalt mixture being low in price and simple for construction, and integrating the three properties of high compactness (waterproof capability), excellent high temperature anti-rut capability and excellent low temperature deforming capability, and particularly suitable for steel bridge floor pavement in a seasonal frost region under the high temperature and heavy-loaded traffic conditions.
High-performance asphalt mixture for steel bridge floor pavement and preparation method thereof
The invention provides a high-performance asphalt mixture for steel bridge floor pavement and a preparation method thereof, aims to solve the problem that the conventional asphalt mixture for steel bridge floor pavement cannot be high in compactness, reliable in high temperature anti-deforming capability, excellent in low temperature deforming capability and high in fatigue-resistant capability at the same time, and belongs to the field of road engineering materials. The asphalt mixture provided by the invention comprises the following components in percentage by mass: 78.8-82.5% of an aggregate, 0.5-2.6% of an asphalt mixture anti-rut agent, 1.8-5.7% of rubber powder, 9.2-12.5% of a cementing material and 0-6.0% of a filler. The preparation method comprises the following steps: firstly, conducting heat preservation on the aggregate, heating a mixer, and then simultaneously adding the aggregate subjected to heat preservation, the asphalt mixture anti-rut agent and the rubber powder into the heated mixer for mixing; secondly, adding the cementing material for mixing; finally, adding the filler for mixing. The asphalt mixture provided by the invention is a novel asphalt mixture being low in price and simple for construction, and integrating the three properties of high compactness (waterproof capability), excellent high temperature anti-rut capability and excellent low temperature deforming capability, and particularly suitable for steel bridge floor pavement in a seasonal frost region under the high temperature and heavy-loaded traffic conditions.
High-performance asphalt mixture for steel bridge floor pavement and preparation method thereof
GAO MING (author) / LIU YUNQUAN (author) / FAN XINGHUA (author) / ZHU JIANPING (author) / CHEN QIAN (author) / LIU SHOUJUN (author) / NAN XUEFENG (author) / JIN XIN (author)
2015-09-30
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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