A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Asphalt mixture and preparation method thereof
The invention discloses an SMA asphalt mixture and a preparation method thereof.The method comprises the following steps that 1, aggregate, rubber and fiber with preset mass are stirred and mixed to be uniform at the temperature of 170-180 DEG C, a mixture 1 is obtained, the particle size of the rubber is 2.36-4.75 mm, the aggregate is a mixture of multiple particles with different particle sizes, and the particle size distribution interval is 0-15 mm; step 2, firstly adding asphalt with a preset mass and in a flowing state into the mixture 1, uniformly stirring, then adding mineral powder with a preset mass, and uniformly stirring to obtain a mixture 2; and step 3, heating the mixture 2 in a drying oven at 120-180 DEG C for 2-3 hours to obtain the target asphalt mixture. The invention aims to improve the high and low temperature performance of the asphalt mixture and reduce the traffic noise generated in the driving process of vehicles.
本发明公开了一种SMA沥青混合料及其制备方法，所述方法包括以下步骤：步骤1，将预设质量的集料、橡胶和纤维于170～180℃下搅拌混合均匀，得到混料1，其中，橡胶粒径为2.36mm～4.75mm，集料为多种不同粒径的颗粒混合物，粒径分布区间为0～15mm；步骤2，在混料1中先加入预设质量且呈流动态的沥青，搅拌匀后再加入预设质量的矿粉，搅拌均匀后得到混料2；步骤3，将混料2在120～180℃烘箱中加热2‑3h，得到目标沥青混合料。本发明旨在提高沥青混合料的高低温性能以及降低车辆在行驶过程中的产生的交通噪音。
Asphalt mixture and preparation method thereof
The invention discloses an SMA asphalt mixture and a preparation method thereof.The method comprises the following steps that 1, aggregate, rubber and fiber with preset mass are stirred and mixed to be uniform at the temperature of 170-180 DEG C, a mixture 1 is obtained, the particle size of the rubber is 2.36-4.75 mm, the aggregate is a mixture of multiple particles with different particle sizes, and the particle size distribution interval is 0-15 mm; step 2, firstly adding asphalt with a preset mass and in a flowing state into the mixture 1, uniformly stirring, then adding mineral powder with a preset mass, and uniformly stirring to obtain a mixture 2; and step 3, heating the mixture 2 in a drying oven at 120-180 DEG C for 2-3 hours to obtain the target asphalt mixture. The invention aims to improve the high and low temperature performance of the asphalt mixture and reduce the traffic noise generated in the driving process of vehicles.
本发明公开了一种SMA沥青混合料及其制备方法，所述方法包括以下步骤：步骤1，将预设质量的集料、橡胶和纤维于170～180℃下搅拌混合均匀，得到混料1，其中，橡胶粒径为2.36mm～4.75mm，集料为多种不同粒径的颗粒混合物，粒径分布区间为0～15mm；步骤2，在混料1中先加入预设质量且呈流动态的沥青，搅拌匀后再加入预设质量的矿粉，搅拌均匀后得到混料2；步骤3，将混料2在120～180℃烘箱中加热2‑3h，得到目标沥青混合料。本发明旨在提高沥青混合料的高低温性能以及降低车辆在行驶过程中的产生的交通噪音。
Asphalt mixture and preparation method thereof
一种沥青混合料及其制备方法
HAN DAYONG (author) / ZHONG XINGWU (author) / WANG LIANG (author) / LI DONG (author) / LU WEIWEI (author) / ZHANG YULING (author) / LV HUAQING (author) / GUO PENGZHAO (author) / RAO CHAOYUE (author)
2024-07-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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