桥梁伸缩缝聚氨酯密封胶免维护灌封材料

发布时间 : 2022-11-10 9:38:06
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(Summary description)Customized SILICONE STRUCTURAL SEALANT from China manufacturer refers to the adhesive with high strength, can bear large load, aging resistance, fatigue resistance and corrosion resistance, and has stable performance within the expected life. It is suitable for bearing the bonding of strong structural parts. Non structural adhesive has low strength and poor durability. It can only be used for bonding, sealing and fixing of ordinary and temporary properties, and cannot be used for structural adhesive bonding. NEUTRAL SILICONE WETHERPROOF SEALANT from China manufacturer is a structural adhesive with waterproof function. Silicone glue refers to the adhesive based on silicone rubber. According to different functions, it can be divided into structural adhesive, potting adhesive, sealant, thermal conductive adhesive, flame retardant adhesive and so on.

桥梁伸缩缝聚氨酯密封胶免维护灌封材料

(Summary description)Customized SILICONE STRUCTURAL SEALANT from China manufacturer refers to the adhesive with high strength, can bear large load, aging resistance, fatigue resistance and corrosion resistance, and has stable performance within the expected life. It is suitable for bearing the bonding of strong structural parts. Non structural adhesive has low strength and poor durability. It can only be used for bonding, sealing and fixing of ordinary and temporary properties, and cannot be used for structural adhesive bonding. NEUTRAL SILICONE WETHERPROOF SEALANT from China manufacturer is a structural adhesive with waterproof function. Silicone glue refers to the adhesive based on silicone rubber. According to different functions, it can be divided into structural adhesive, potting adhesive, sealant, thermal conductive adhesive, flame retardant adhesive and so on.

发布时间 : 2022-11-10 9:38:06
Views:

在桥梁伸缩缝聚氨酯密封胶免维护灌封材料上，2019年首先在抚通高速上夹河大桥和丹绥线滨海公路辽河大桥的伸缩缝中选择使用路面专用灌封胶和橡胶沥青两种材料填充伸缩缝橡胶条，经过试验发现，两种材料在北方气候条件下低温稳定性较差，桥梁伸缩缝聚氨酯密封胶变形过程中发生开裂、脱落、破损等现象，未达到伸缩缝橡胶条免维护的效果。

2020年采用单组份聚氨酯密封胶做为桥梁伸缩缝聚氨酯密封胶免维护灌封材料。它具有优异的抗位移变化与防水性能，即开即用，初始为液态流淌状，吸收空气中的水分反应后常温快速固化，表干时间快，超低模量，耐老化性好，耐候性强，高温不流淌，低温不脆裂。在- 60℃一+200℃范围内性能基本不变而保持良好的弹性，极限断裂伸长率达到13倍，与水泥混凝土、沥青混凝土、钢铁化学相容性好，不需要底涂处理即可粘贴牢固，是一种环保节能的绿色材料。www.sdyuantai.com

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