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A platform for research: civil engineering, architecture and urbanism
Modified asphalt mixture and preparation method thereof
The invention relates to the field of pavements, and particularly discloses a modified asphalt mixture and a preparation method thereof. The mixture is prepared from the following raw materials in parts by weight: 4-7 parts of modified asphalt, 90-98 parts of aggregate, 8-10 parts of mineral powder and 0.1-0.9 part of a fiber stabilizer; the preparation method comprises the following steps: S1, uniformly mixing the aggregate and the mineral powder according to a set proportion, and heating to 190-220 DEG C for later use to obtain a mixture; and S2, adding the modified asphalt preheated to 170-175 DEG C into the mixture heated in the step S1, keeping stirring for 40 seconds at the temperature of 180 DEG C, adding a fiber stabilizer, and carrying out heat preservation stirring for 23-25 seconds at the temperature of 180 DEG C to obtain the modified asphalt mixture. The modified asphalt mixture has the advantage that the cracking resistance and durability of asphalt are improved.
本申请涉及路面领域，具体公开了一种改性沥青混合料及其制备方法。所述混合料由包含以下重量份的原料制成：改性沥青4～7份，集料90～98份，矿粉8～10份，纤维稳定剂0.1～0.9份；其制备方法为：S1、按设定比例，将集料和矿粉混合均匀后，升温至190～220℃备用，得到混合料；S2、将预热至170～175℃的改性沥青加入到S1中加热后的混合料中，在180℃的温度下保持搅拌40s后，加入纤维稳定剂后，在180℃的温度下保温搅拌23～25s，得到改性沥青混合料。本申请的改性沥青混合料具有提高沥青的抗开裂性能和耐久性的优点。
Modified asphalt mixture and preparation method thereof
The invention relates to the field of pavements, and particularly discloses a modified asphalt mixture and a preparation method thereof. The mixture is prepared from the following raw materials in parts by weight: 4-7 parts of modified asphalt, 90-98 parts of aggregate, 8-10 parts of mineral powder and 0.1-0.9 part of a fiber stabilizer; the preparation method comprises the following steps: S1, uniformly mixing the aggregate and the mineral powder according to a set proportion, and heating to 190-220 DEG C for later use to obtain a mixture; and S2, adding the modified asphalt preheated to 170-175 DEG C into the mixture heated in the step S1, keeping stirring for 40 seconds at the temperature of 180 DEG C, adding a fiber stabilizer, and carrying out heat preservation stirring for 23-25 seconds at the temperature of 180 DEG C to obtain the modified asphalt mixture. The modified asphalt mixture has the advantage that the cracking resistance and durability of asphalt are improved.
本申请涉及路面领域，具体公开了一种改性沥青混合料及其制备方法。所述混合料由包含以下重量份的原料制成：改性沥青4～7份，集料90～98份，矿粉8～10份，纤维稳定剂0.1～0.9份；其制备方法为：S1、按设定比例，将集料和矿粉混合均匀后，升温至190～220℃备用，得到混合料；S2、将预热至170～175℃的改性沥青加入到S1中加热后的混合料中，在180℃的温度下保持搅拌40s后，加入纤维稳定剂后，在180℃的温度下保温搅拌23～25s，得到改性沥青混合料。本申请的改性沥青混合料具有提高沥青的抗开裂性能和耐久性的优点。
Modified asphalt mixture and preparation method thereof
一种改性沥青混合料及其制备方法
JIA YONGMING (author) / HU JINGDONG (author)
2021-04-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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