A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cold mixing type semi-flexible pavement material and preparation method thereof
The invention discloses a cold mixing type semi-flexible pavement material and a preparation method thereof. The material is prepared from the following components in parts by mass: 54 to 108 parts of emulsified asphalt, 1000 to 1200 parts of aggregate, 63 to 125 parts of mineral powder, 45 to 90 parts of cement, 5 to 9 parts of sulphoaluminate rapid hardening cement, 4 to 9 parts of fine sand, 8 to 16 parts of silica fume, 4 to 9 parts of expanding agent and 0.1 to 0.5 part of early strength agent. The material is prepared by the following steps: uniformly mixing aggregate, mineral powder, cement, sulphoaluminate quick-hardening cement, fine sand, silica fume and an expanding agent to obtain a first mixture; and adding the early strength agent into the emulsified asphalt, uniformly mixing, adding into the first mixture in a stirring state, and fully mixing to obtain the early strength asphalt. Based on the synergistic effect of all the components, the high-temperature stability, water stability and fatigue performance of the material are greatly improved, high-temperature heating is not needed, a water reducing agent is not added into the semi-flexible pavement material, the material is endowed with excellent toughness and early hardening, and the technical requirements for rapid construction and rapid use can be met.
本发明公开了一种冷拌式半柔性路面材料及其制备方法。该材料包括以下质量份数组分：乳化沥青54～108份，集料1000～1200份，矿粉63～125份数，水泥45～90份，硫铝酸盐快硬水泥5～9份，细砂4～9份，硅灰8～16份，膨胀剂4～9份，早强剂0.1～0.5份。该材料将集料、矿粉、水泥、硫铝酸盐快硬水泥、细砂、硅灰和膨胀剂混合均匀得第一混合物；将早强剂加入乳化沥青中混合均匀后在搅拌状态下加入第一混合物中充分拌合，即得。该材料基于各组分之间的协同作用，大幅提高材料的高温稳定性、水稳定性和疲劳性能，无需高温加热，本发明中的半柔性路面材料未加入减水剂，赋予材料优异的韧性与早硬性，可满足快速施工、快速使用的技术要求。
Cold mixing type semi-flexible pavement material and preparation method thereof
The invention discloses a cold mixing type semi-flexible pavement material and a preparation method thereof. The material is prepared from the following components in parts by mass: 54 to 108 parts of emulsified asphalt, 1000 to 1200 parts of aggregate, 63 to 125 parts of mineral powder, 45 to 90 parts of cement, 5 to 9 parts of sulphoaluminate rapid hardening cement, 4 to 9 parts of fine sand, 8 to 16 parts of silica fume, 4 to 9 parts of expanding agent and 0.1 to 0.5 part of early strength agent. The material is prepared by the following steps: uniformly mixing aggregate, mineral powder, cement, sulphoaluminate quick-hardening cement, fine sand, silica fume and an expanding agent to obtain a first mixture; and adding the early strength agent into the emulsified asphalt, uniformly mixing, adding into the first mixture in a stirring state, and fully mixing to obtain the early strength asphalt. Based on the synergistic effect of all the components, the high-temperature stability, water stability and fatigue performance of the material are greatly improved, high-temperature heating is not needed, a water reducing agent is not added into the semi-flexible pavement material, the material is endowed with excellent toughness and early hardening, and the technical requirements for rapid construction and rapid use can be met.
本发明公开了一种冷拌式半柔性路面材料及其制备方法。该材料包括以下质量份数组分：乳化沥青54～108份，集料1000～1200份，矿粉63～125份数，水泥45～90份，硫铝酸盐快硬水泥5～9份，细砂4～9份，硅灰8～16份，膨胀剂4～9份，早强剂0.1～0.5份。该材料将集料、矿粉、水泥、硫铝酸盐快硬水泥、细砂、硅灰和膨胀剂混合均匀得第一混合物；将早强剂加入乳化沥青中混合均匀后在搅拌状态下加入第一混合物中充分拌合，即得。该材料基于各组分之间的协同作用，大幅提高材料的高温稳定性、水稳定性和疲劳性能，无需高温加热，本发明中的半柔性路面材料未加入减水剂，赋予材料优异的韧性与早硬性，可满足快速施工、快速使用的技术要求。
Cold mixing type semi-flexible pavement material and preparation method thereof
一种冷拌式半柔性路面材料及其制备方法
PAN QINXUE (author) / YAO LI (author) / LYU SONGTAO (author) / SONG XIAOJIN (author) / ZHANG JUNHUI (author) / JIANG SHUNJUN (author)
2024-07-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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