Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Acidic aggregate asphalt concrete and preparation method thereof
The invention discloses an acidic aggregate asphalt concrete. The acidic aggregate asphalt concrete is mainly applied to the field of asphalt concrete anti-seepage technology for water conservancy andhydropower engineering, and comprises 7.2-8.0% of asphalt, 80-90% of acidic aggregate, 2-4% of mineral powder, 0.3-1.5% of an anti-stripping agent, and 8.0-12% of iron tailing master batch, the acidic aggregate is granite or gneiss and the like, and the particle size of the aggregate is within 20 mm. According to the invention, the acidic aggregate and the asphalt are mixed, and after the anti-stripping agent is added into the asphalt, a good and stable colloidal mesh is formed between the acidic aggregate and the asphalt, so that the structural strength of the asphalt concrete is well improved, and the Marshall stability of the asphalt concrete is greatly improved; after the anti-stripping agent is added into the asphalt, the adhesion with the acidic aggregate is substantially enhanced,the durability and the like of the asphalt concrete are improved; and the acidic aggregate is used so as to save the use of the alkaline aggregate, such that the asphalt concrete aggregate source problem is substantially solved.
本发明公开了一种酸性骨料沥青混凝土，主要应用领域为水利水电工程专业的沥青混凝土防渗技术，包括如下百分比物料的组成：沥青7.2～8.0%；酸性骨料80～90%；矿粉2～4%；抗剥落剂0.3～1.5%；铁尾矿母料8.0～12%；酸性骨料为花岗岩或片麻岩等酸性骨料，骨料粒径为20mm以内。本发明通过采用酸性骨料与沥青拌合，在沥青中添加抗剥落剂后，酸性骨料和沥青之间形成了良好稳定的胶质网，对沥青混凝土的结构强度具有良好的提高效果，使沥青混凝土的马歇尔稳定度大大提高，沥青添加抗剥落剂后，与酸性骨料的粘附性大大加强，沥青混凝土的耐久性等提高，且采用酸性骨料，能够节省碱性骨料的用料，从而极大地解决了沥青混凝土骨料料源问题。
Acidic aggregate asphalt concrete and preparation method thereof
The invention discloses an acidic aggregate asphalt concrete. The acidic aggregate asphalt concrete is mainly applied to the field of asphalt concrete anti-seepage technology for water conservancy andhydropower engineering, and comprises 7.2-8.0% of asphalt, 80-90% of acidic aggregate, 2-4% of mineral powder, 0.3-1.5% of an anti-stripping agent, and 8.0-12% of iron tailing master batch, the acidic aggregate is granite or gneiss and the like, and the particle size of the aggregate is within 20 mm. According to the invention, the acidic aggregate and the asphalt are mixed, and after the anti-stripping agent is added into the asphalt, a good and stable colloidal mesh is formed between the acidic aggregate and the asphalt, so that the structural strength of the asphalt concrete is well improved, and the Marshall stability of the asphalt concrete is greatly improved; after the anti-stripping agent is added into the asphalt, the adhesion with the acidic aggregate is substantially enhanced,the durability and the like of the asphalt concrete are improved; and the acidic aggregate is used so as to save the use of the alkaline aggregate, such that the asphalt concrete aggregate source problem is substantially solved.
本发明公开了一种酸性骨料沥青混凝土，主要应用领域为水利水电工程专业的沥青混凝土防渗技术，包括如下百分比物料的组成：沥青7.2～8.0%；酸性骨料80～90%；矿粉2～4%；抗剥落剂0.3～1.5%；铁尾矿母料8.0～12%；酸性骨料为花岗岩或片麻岩等酸性骨料，骨料粒径为20mm以内。本发明通过采用酸性骨料与沥青拌合，在沥青中添加抗剥落剂后，酸性骨料和沥青之间形成了良好稳定的胶质网，对沥青混凝土的结构强度具有良好的提高效果，使沥青混凝土的马歇尔稳定度大大提高，沥青添加抗剥落剂后，与酸性骨料的粘附性大大加强，沥青混凝土的耐久性等提高，且采用酸性骨料，能够节省碱性骨料的用料，从而极大地解决了沥青混凝土骨料料源问题。
Acidic aggregate asphalt concrete and preparation method thereof
一种酸性骨料沥青混凝土及其制备方法
ZHAO CHANGWEI (Autor:in) / SHA BAOWEI (Autor:in) / ZHANG QIANG (Autor:in) / WANG LUNXIANG (Autor:in) / SU SHENGWEI (Autor:in) / LYU KEPENG (Autor:in) / QIAO WEILI (Autor:in)
01.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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