Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel cement emulsified asphalt mortar as well as preparation method and application thereof
The invention provides novel cement emulsified asphalt mortar as well as a preparation method and application thereof, the novel cement emulsified asphalt mortar comprises the following components in parts by weight: 100 parts of cationic emulsified asphalt, 100 parts of cement and 150-200 parts of sand, and further comprises anionic waterborne polyurethane, and the addition amount of the anionic waterborne polyurethane is 0-20% of the mass of the cement and does not include 0. According to the present invention, with the selection of the zwitterions, the asphalt can well provide the damping capacity, the compatibility of the asphalt and the cement is improved, the contact between the asphalt and the external light, heat, rainwater and other aging factors is reduced, and the easily aged asphalt is effectively protected. Therefore, the rigidity and the damping capacity of the cement-emulsified asphalt mortar under the alternating load are greatly improved, and the fatigue life of the CA mortar is obviously prolonged. The cement emulsified asphalt mortar is suitable for slab ballastless tracks of high-speed railways, passenger dedicated lines and intercity railways, and has a good application prospect.
本发明提供了一种新型水泥乳化沥青砂浆及其制备方法和应用，包括以下重量份数的组分：阳离子型乳化沥青100份、水泥100份和砂150～200份，还包括阴离子型水性聚氨酯所述阴离子型水性聚氨酯的添加量为水泥质量的0～20％，且不包括0。本发明通过阴阳离子的选择可以更好地使沥青发挥阻尼能力，改善了沥青与水泥的相容性，还减少了沥青与外界光、热、雨水和其他老化因素的接触，有效地保护容易老化的沥青。因此，本发明较大程度上提升水泥乳化沥青砂浆在交变荷载下的刚性和减振能力，且明显的延长了CA砂浆的疲劳寿命。本发明适用于高速铁路、客运专线、城际铁路板式无砟轨道用水泥乳化沥青砂浆，具有良好的应用前景。
Novel cement emulsified asphalt mortar as well as preparation method and application thereof
The invention provides novel cement emulsified asphalt mortar as well as a preparation method and application thereof, the novel cement emulsified asphalt mortar comprises the following components in parts by weight: 100 parts of cationic emulsified asphalt, 100 parts of cement and 150-200 parts of sand, and further comprises anionic waterborne polyurethane, and the addition amount of the anionic waterborne polyurethane is 0-20% of the mass of the cement and does not include 0. According to the present invention, with the selection of the zwitterions, the asphalt can well provide the damping capacity, the compatibility of the asphalt and the cement is improved, the contact between the asphalt and the external light, heat, rainwater and other aging factors is reduced, and the easily aged asphalt is effectively protected. Therefore, the rigidity and the damping capacity of the cement-emulsified asphalt mortar under the alternating load are greatly improved, and the fatigue life of the CA mortar is obviously prolonged. The cement emulsified asphalt mortar is suitable for slab ballastless tracks of high-speed railways, passenger dedicated lines and intercity railways, and has a good application prospect.
本发明提供了一种新型水泥乳化沥青砂浆及其制备方法和应用，包括以下重量份数的组分：阳离子型乳化沥青100份、水泥100份和砂150～200份，还包括阴离子型水性聚氨酯所述阴离子型水性聚氨酯的添加量为水泥质量的0～20％，且不包括0。本发明通过阴阳离子的选择可以更好地使沥青发挥阻尼能力，改善了沥青与水泥的相容性，还减少了沥青与外界光、热、雨水和其他老化因素的接触，有效地保护容易老化的沥青。因此，本发明较大程度上提升水泥乳化沥青砂浆在交变荷载下的刚性和减振能力，且明显的延长了CA砂浆的疲劳寿命。本发明适用于高速铁路、客运专线、城际铁路板式无砟轨道用水泥乳化沥青砂浆，具有良好的应用前景。
Novel cement emulsified asphalt mortar as well as preparation method and application thereof
一种新型水泥乳化沥青砂浆及其制备方法和应用
XIA TIAN (Autor:in) / WANG ZHONGLI (Autor:in) / CHEN XIANWU (Autor:in) / XU YOUJIE (Autor:in) / XIA SHUANG (Autor:in) / ZHOU SHIYUN (Autor:in) / WU SHUO (Autor:in)
01.08.2023
Patent
Elektronische Ressource
Chinesisch
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