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A platform for research: civil engineering, architecture and urbanism
Heavy-load modified colored asphalt concrete material and preparation method thereof
The invention discloses a heavy-load modified colored asphalt concrete material and a preparation method thereof. The invention relates to the technical field of road engineering. The concrete material comprises the following raw materials in percentage by weight: 75wt%-85wt% of colored anorthosite coarse aggregate, 10wt%-14wt% of light-colored limestone fine aggregate, 8wt%-11wt% of white mineralpowder, red lignin fiber, Fe2O3 toner and heavy-load modified decolored asphalt. The red lignin fiber and the Fe2O3 toner are externally doped into the concrete material, the external doping amount of the red lignin fiber is 0.25%-0.35%, the external doping amount of the Fe2O3 toner is 2%-3%, and the asphalt-aggregate ratio of the heavy-load modified decolored asphalt is 5.9%-6.5%. The concrete material can be non-sticky (asphalt is not adhered to a rubber wheel during the rubber wheel rolling process in a stability test at 60 DEG C), the high-temperature stability index and the dynamic stability index of the concrete reach 10000 times/mm or above, and the freeze-thaw splitting residual strength ratio of the water stability index reaches 90% or above.
本发明公开了一种重载改性彩色沥青混凝土材料及制备方法，具体涉及道路工程技术领域，该混凝土材料所使用的原料(按重量百分比计)包括：彩色斜长岩类粗集料75wt％‑85wt％、淡色石灰岩类细集料10wt％‑14wt％、白色矿粉8wt％‑11wt％、红色木质素纤维、FeO色粉和重载改性脱色沥青，所述红色木质素纤维和FeO色粉外掺入该混凝土材料中，且红色木质素纤维外掺量为0.25％‑0.35％，FeO色粉外掺量为2％‑3％，所述重载改性脱色沥青油石比为5.9％‑6.5％。本发明制备的混凝土能够不粘轮(在60℃℃稳定度试验过程中，胶轮碾压试验过程中不产生沥青与胶轮粘连)，其高温稳定性指标动稳定度指标达10000次/mm以上，水稳定性指标冻融劈裂残留强度比达90％以上。
Heavy-load modified colored asphalt concrete material and preparation method thereof
The invention discloses a heavy-load modified colored asphalt concrete material and a preparation method thereof. The invention relates to the technical field of road engineering. The concrete material comprises the following raw materials in percentage by weight: 75wt%-85wt% of colored anorthosite coarse aggregate, 10wt%-14wt% of light-colored limestone fine aggregate, 8wt%-11wt% of white mineralpowder, red lignin fiber, Fe2O3 toner and heavy-load modified decolored asphalt. The red lignin fiber and the Fe2O3 toner are externally doped into the concrete material, the external doping amount of the red lignin fiber is 0.25%-0.35%, the external doping amount of the Fe2O3 toner is 2%-3%, and the asphalt-aggregate ratio of the heavy-load modified decolored asphalt is 5.9%-6.5%. The concrete material can be non-sticky (asphalt is not adhered to a rubber wheel during the rubber wheel rolling process in a stability test at 60 DEG C), the high-temperature stability index and the dynamic stability index of the concrete reach 10000 times/mm or above, and the freeze-thaw splitting residual strength ratio of the water stability index reaches 90% or above.
本发明公开了一种重载改性彩色沥青混凝土材料及制备方法，具体涉及道路工程技术领域，该混凝土材料所使用的原料(按重量百分比计)包括：彩色斜长岩类粗集料75wt％‑85wt％、淡色石灰岩类细集料10wt％‑14wt％、白色矿粉8wt％‑11wt％、红色木质素纤维、FeO色粉和重载改性脱色沥青，所述红色木质素纤维和FeO色粉外掺入该混凝土材料中，且红色木质素纤维外掺量为0.25％‑0.35％，FeO色粉外掺量为2％‑3％，所述重载改性脱色沥青油石比为5.9％‑6.5％。本发明制备的混凝土能够不粘轮(在60℃℃稳定度试验过程中，胶轮碾压试验过程中不产生沥青与胶轮粘连)，其高温稳定性指标动稳定度指标达10000次/mm以上，水稳定性指标冻融劈裂残留强度比达90％以上。
Heavy-load modified colored asphalt concrete material and preparation method thereof
一种重载改性彩色沥青混凝土材料及制备方法
XU BIN (author) / YUAN BIN (author) / GU AIHUA (author) / ZHANG XIAOGANG (author)
2020-06-23
Patent
Electronic Resource
Chinese
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