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A platform for research: civil engineering, architecture and urbanism
Single-component polyurethane mixture cement concrete bridge deck pavement method
The invention belongs to the technical field of road engineering, and particularly discloses a single-component polyurethane mixture cement concrete bridge deck pavement method. Comprising the following steps: S1, treating the top surface of a cement concrete pavement layer; s2, spraying a certain amount of modified emulsified asphalt; s3, an SBS modified asphalt gravel sealing layer is constructed, and the spreading amount of SBS modified asphalt is 0.8-1.0 kg/m < 2 >; the gravels adopt two grades of particle sizes of 5-10 mm and 10-15 mm, and the spreading amount needs to ensure that the coverage rate of the gravels is 60-70%; s4, carrying out full-width rolling twice by adopting a rubber wheel road roller; s5, polyurethane mortar is constructed, and the construction thickness ranges from 1.5 cm to 2.5 cm; s6, single-component polyurethane is spread, and the spreading amount is 1.0-1.2 kg/m < 2 >; and S7, a polyurethane mixture pavement layer is constructed, and the grading type and the pavement layer number are selected according to the function requirements of the bridge deck pavement layer. Various requirements of heavy load, high temperature, drainage, noise reduction and the like can be met, and coupling of rut resistance and multifunctional requirements of a cement concrete bridge deck pavement layer is achieved.
本发明属于道路工程技术领域，具体公开了一种单组分聚氨酯混合料水泥混凝土桥面铺装方法。包括以下步骤：S1、对水泥混凝土铺装层的顶面进行处治；S2、喷洒一定量的改性乳化沥青；S3、施工SBS改性沥青碎石封层，所述SBS改性沥青的洒布量为0.8～1.0kg/m2；所述碎石采用粒径为5～10mm和10～15mm两档，撒布量需要保证碎石的覆盖率在60～70％之间；S4、采用胶轮压路机全幅碾压两遍；S5、施工聚氨酯胶砂，施工厚度为1.5～2.5cm；S6、撒布单组分聚氨酯，撒布量为1.0～1.2kg/m2；S7、施工聚氨酯混合料铺装层，根据桥面铺装层的功能需求选择级配类型和铺装层数。本发明能够满足重载、高温、排水降噪等多种需求，实现水泥混凝土桥面铺装层的抗车辙与多功能需求的耦合。
Single-component polyurethane mixture cement concrete bridge deck pavement method
The invention belongs to the technical field of road engineering, and particularly discloses a single-component polyurethane mixture cement concrete bridge deck pavement method. Comprising the following steps: S1, treating the top surface of a cement concrete pavement layer; s2, spraying a certain amount of modified emulsified asphalt; s3, an SBS modified asphalt gravel sealing layer is constructed, and the spreading amount of SBS modified asphalt is 0.8-1.0 kg/m < 2 >; the gravels adopt two grades of particle sizes of 5-10 mm and 10-15 mm, and the spreading amount needs to ensure that the coverage rate of the gravels is 60-70%; s4, carrying out full-width rolling twice by adopting a rubber wheel road roller; s5, polyurethane mortar is constructed, and the construction thickness ranges from 1.5 cm to 2.5 cm; s6, single-component polyurethane is spread, and the spreading amount is 1.0-1.2 kg/m < 2 >; and S7, a polyurethane mixture pavement layer is constructed, and the grading type and the pavement layer number are selected according to the function requirements of the bridge deck pavement layer. Various requirements of heavy load, high temperature, drainage, noise reduction and the like can be met, and coupling of rut resistance and multifunctional requirements of a cement concrete bridge deck pavement layer is achieved.
本发明属于道路工程技术领域，具体公开了一种单组分聚氨酯混合料水泥混凝土桥面铺装方法。包括以下步骤：S1、对水泥混凝土铺装层的顶面进行处治；S2、喷洒一定量的改性乳化沥青；S3、施工SBS改性沥青碎石封层，所述SBS改性沥青的洒布量为0.8～1.0kg/m2；所述碎石采用粒径为5～10mm和10～15mm两档，撒布量需要保证碎石的覆盖率在60～70％之间；S4、采用胶轮压路机全幅碾压两遍；S5、施工聚氨酯胶砂，施工厚度为1.5～2.5cm；S6、撒布单组分聚氨酯，撒布量为1.0～1.2kg/m2；S7、施工聚氨酯混合料铺装层，根据桥面铺装层的功能需求选择级配类型和铺装层数。本发明能够满足重载、高温、排水降噪等多种需求，实现水泥混凝土桥面铺装层的抗车辙与多功能需求的耦合。
Single-component polyurethane mixture cement concrete bridge deck pavement method
单组分聚氨酯混合料水泥混凝土桥面铺装方法
ZHAO HAISHENG (author) / ZHANG WENSHENG (author) / LI ZHONG (author) / CUI SHIPING (author) / MIAO BAOJI (author) / GAO WENBIN (author) / ZHANG HANZHI (author) / WEI JINCHENG (author) / MA SHIJIE (author) / WANG LIN (author)
2023-06-13
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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