首页|温拌剂EC-120对SBS改性沥青流变性能的影响研究

温拌剂EC-120对SBS改性沥青流变性能的影响研究

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为研究温拌剂EC-120 对SBS改性沥青流变性能的影响规律,通过布洛克菲尔德黏度计法、DSR和BBR试验分别研究了EC-120 温拌剂在不同掺量(2%、4%、6%)下对SBS改性沥青高温黏度、高温抗车辙能力及低温抗裂性能的影响,并以车辙因子和蠕变劲度的老化指数为指标分析 4%EC-120 温拌剂对SBS改性沥青老化性能的影响。结果表明,EC-120 温拌剂可以显著降低SBS改性沥青的高温黏度,提高SBS改性沥青的高温抗车辙能力,但会对SBS改性沥青的低温抗裂性能产生消极影响;EC-120 温拌剂可改善SBS改性沥青的老化性能,减缓老化速率。建议EC-120 温拌剂掺量为 4%。
Research on the Effect of Warm Mix Agent EC-120 on the Rheological Properties of SBS Modified Asphalt
In order to study the influence of warm mix agent EC-120 on the rheological properties of SBS modified asphalt,the effects of warm mix agent EC-120 on the high-temperature viscosity,high-temperature resistance to rutting,and low-temperature resistance to cracking of SBS modified asphalt at different dosages(2%,4%,6%)were studied using the Blockfield viscometer method,DSR and BBR tests.The effects of 4%EC-120 on the aging performance of SBS modified asphalt were analyzed using the rutting factor and creep stiffness aging index as indicators.The results show that warm mix agent EC-120 can significantly reduce the high-temperature viscosity of SBS modified asphalt and improve its high-temperature resistance to rutting,but it will have a negative impact on the low-temperature crack resistance of SBS modified asphalt.EC-120 can improve the aging performance of SBS modified asphalt and slow down the aging rate.It is recommended that the EC-120 warm mix agent dosage be 4%.

road engineeringwarm mixing agent EC-120SBS modified asphaltasphalt performance

张富强、赵芳、张文婧、张文阳、房梦思

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河南通和高速公路养护工程有限责任公司,河南郑州 450000

河南同济路桥工程技术有限公司,河南郑州 450000

河南省实嘉再生公路工程有限公司,河南郑州 450000

平顶山市上止正建筑劳务有限公司,河南平顶山 467000

河南高速公路试验检测有限公司,河南郑州 450121

河南省公路工程监理咨询有限公司,河南郑州 450052

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道路工程 温拌剂EC-120 SBS改性沥青 沥青性能

2024

合成材料老化与应用
广州合成材料研究院

合成材料老化与应用

CSTPCD
影响因子:0.279
ISSN:1671-5381
年,卷(期):2024.53(5)
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