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Preparation method of porous warm mixing agent loaded composite nano flame retardant for asphalt pavement
The invention provides a preparation method of a porous warm mixing agent loaded composite nano flame retardant for an asphalt pavement, belongs to the technical field of asphalt flame retardance andaims to solve the problems of tedious construction process, likely agglomeration in an asphalt mixture, uneven dispersion, and difficulty in fully exerting the effect of a flame retardant due to respective addition of a warm mixing agent and the flame retardant in the prior art. The preparation method comprises the following steps of: firstly, optimizing a nano flame retardant according to the thermal decomposition temperature gradient distribution characteristics of four components of asphalt to prepare a composite nano flame retardant; then adding the flame retardant and a zeolite warm-mixing agent into a vacuum heating roller box body, connecting a vacuum suction hole of the box body to a circulating water type vacuum pump so as to enable air in internal pores of the zeolite warm-mixingagent to overflow, and maintaining a thermal environment required by adsorption by utilizing an electric heater; and finally, starting a motor connected with the box body so as to enable the zeolitewarm-mixing agent to be fully adsorbed with the flame retardant, thereby obtaining the flame-retardant warm-mixing agent for the asphalt pavement. The method provided by the invention can realize warmmixing, flame retardant and smoke suppression effects on asphalt, improves the construction environment of a tunnel , and improves the safety performance of thetunnel.
本发明提供一种沥青路面用多孔温拌剂负载复合纳米阻燃剂的制备方法，属于沥青阻燃技术领域，解决了温拌剂和阻燃剂分别掺加导致施工工艺繁琐、在沥青混合料中易团聚、分散不均匀、难以充分发挥阻燃剂效用的问题。首先根据沥青四组分的热分解温度梯度分布特征优选纳米阻燃剂制备复合纳米阻燃剂；然后将阻燃剂和沸石温拌剂加入真空加热滚筒箱体，通过箱体的真空抽气孔连接循环水式真空泵，使沸石温拌剂内部孔隙中的空气溢出，利用电加热器维持吸附所需要的热环境；最后打开连接箱体的电机，使沸石温拌剂与阻燃剂吸附充分，制得沥青路面用阻燃型温拌剂。本发明提供的方法能实现对沥青的温拌以及阻燃抑烟效果，改善隧道施工环境，提高隧道安全性能。
Preparation method of porous warm mixing agent loaded composite nano flame retardant for asphalt pavement
The invention provides a preparation method of a porous warm mixing agent loaded composite nano flame retardant for an asphalt pavement, belongs to the technical field of asphalt flame retardance andaims to solve the problems of tedious construction process, likely agglomeration in an asphalt mixture, uneven dispersion, and difficulty in fully exerting the effect of a flame retardant due to respective addition of a warm mixing agent and the flame retardant in the prior art. The preparation method comprises the following steps of: firstly, optimizing a nano flame retardant according to the thermal decomposition temperature gradient distribution characteristics of four components of asphalt to prepare a composite nano flame retardant; then adding the flame retardant and a zeolite warm-mixing agent into a vacuum heating roller box body, connecting a vacuum suction hole of the box body to a circulating water type vacuum pump so as to enable air in internal pores of the zeolite warm-mixingagent to overflow, and maintaining a thermal environment required by adsorption by utilizing an electric heater; and finally, starting a motor connected with the box body so as to enable the zeolitewarm-mixing agent to be fully adsorbed with the flame retardant, thereby obtaining the flame-retardant warm-mixing agent for the asphalt pavement. The method provided by the invention can realize warmmixing, flame retardant and smoke suppression effects on asphalt, improves the construction environment of a tunnel , and improves the safety performance of thetunnel.
本发明提供一种沥青路面用多孔温拌剂负载复合纳米阻燃剂的制备方法，属于沥青阻燃技术领域，解决了温拌剂和阻燃剂分别掺加导致施工工艺繁琐、在沥青混合料中易团聚、分散不均匀、难以充分发挥阻燃剂效用的问题。首先根据沥青四组分的热分解温度梯度分布特征优选纳米阻燃剂制备复合纳米阻燃剂；然后将阻燃剂和沸石温拌剂加入真空加热滚筒箱体，通过箱体的真空抽气孔连接循环水式真空泵，使沸石温拌剂内部孔隙中的空气溢出，利用电加热器维持吸附所需要的热环境；最后打开连接箱体的电机，使沸石温拌剂与阻燃剂吸附充分，制得沥青路面用阻燃型温拌剂。本发明提供的方法能实现对沥青的温拌以及阻燃抑烟效果，改善隧道施工环境，提高隧道安全性能。
Preparation method of porous warm mixing agent loaded composite nano flame retardant for asphalt pavement
沥青路面用多孔温拌剂负载复合纳米阻燃剂的制备方法
XU TAO (author) / TAN LINGZHI (author) / XU HUIYU (author)
2020-12-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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