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A platform for research: civil engineering, architecture and urbanism
High-damping modified cement mortar and preparation method and application thereof
The invention discloses high-damping modified cement mortar and a preparation method and application thereof, which belong to the field of civil engineering materials. The high-damping modified cementmortar is prepared from cement, sand, water, waterborne polyurethane emulsion, a water reducing agent and a defoaming agent, wherein the mass ratio of the cement to the sand to the water to the waterborne polyurethane emulsion to the water reducing agent to the defoaming agent is (1000-1200) to (2000-2400) to (500-600) to (80-120) to (4-7) to (0.2-0.5). In addition, the modified cement mortar canfurther comprise inorganic filler. And the inorganic filler is mica and/or whiskers. The modified cement mortar provided by the invention can be used as a damping material of a track, can effectivelysolve the problems of track structure vibration and noise of a ballastless track under the condition of high-speed running of a train, improves the wheel-track relationship during running of the train, and prolongs the service life of the track.
本发明公开了一种高阻尼的改性水泥砂浆及其制备方法和应用，属于土木工程材料领域。该高阻尼的改性水泥砂浆包括水泥、砂、水、水性聚氨酯乳液、减水剂和消泡剂；所述水泥、砂、水、水性聚氨酯乳液、减水剂和消泡剂的质量比为(1000~1200):(2000~2400):(500~600):(80~120):(4~7):(0.2~0.5)。另外，所述改性水泥砂浆还可包括无机填料；所述无机填料为云母和/或晶须。本发明提供的改性水泥砂浆可以用作为轨道的减振材料，其能有效解决无砟轨道在列车高速运行条件下轨道结构振动和噪声问题，改善车辆运行时的轮轨关系以及延长轨道的使用寿命。
High-damping modified cement mortar and preparation method and application thereof
The invention discloses high-damping modified cement mortar and a preparation method and application thereof, which belong to the field of civil engineering materials. The high-damping modified cementmortar is prepared from cement, sand, water, waterborne polyurethane emulsion, a water reducing agent and a defoaming agent, wherein the mass ratio of the cement to the sand to the water to the waterborne polyurethane emulsion to the water reducing agent to the defoaming agent is (1000-1200) to (2000-2400) to (500-600) to (80-120) to (4-7) to (0.2-0.5). In addition, the modified cement mortar canfurther comprise inorganic filler. And the inorganic filler is mica and/or whiskers. The modified cement mortar provided by the invention can be used as a damping material of a track, can effectivelysolve the problems of track structure vibration and noise of a ballastless track under the condition of high-speed running of a train, improves the wheel-track relationship during running of the train, and prolongs the service life of the track.
本发明公开了一种高阻尼的改性水泥砂浆及其制备方法和应用，属于土木工程材料领域。该高阻尼的改性水泥砂浆包括水泥、砂、水、水性聚氨酯乳液、减水剂和消泡剂；所述水泥、砂、水、水性聚氨酯乳液、减水剂和消泡剂的质量比为(1000~1200):(2000~2400):(500~600):(80~120):(4~7):(0.2~0.5)。另外，所述改性水泥砂浆还可包括无机填料；所述无机填料为云母和/或晶须。本发明提供的改性水泥砂浆可以用作为轨道的减振材料，其能有效解决无砟轨道在列车高速运行条件下轨道结构振动和噪声问题，改善车辆运行时的轮轨关系以及延长轨道的使用寿命。
High-damping modified cement mortar and preparation method and application thereof
一种高阻尼的改性水泥砂浆及其制备方法和应用
ZOU DUJIAN (author) / LIU TIEJUN (author) / SONG WEN (author) / ZHOU AO (author) / CHEN JUN (author)
2020-06-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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