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MS密封胶-混凝土界面黏结性能的影响

  • 发布时间 : 2023-1-19 16:37:58
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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.

MS密封胶-混凝土界面黏结性能的影响

(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 : 2023-1-19 16:37:58
  • Views:
Information

       MS密封胶应变分析结合有限元计算和试验结果分析胶层厚度对MS密封胶-混凝土界面黏结性能的影响。取典型荷载(极限荷载的前一级分级荷载)下JG-1-JG-4的MS密封胶测点实测值及有限元计算值绘制MS密封胶应变随左侧布端距离变化分布曲线图,如图11所示。

       由图11可见,MS密封胶应变分布从主要集中在中央纯弯段区域(JG-1)逐渐向两侧剪跨段区域发展(JG-4),表明界面有效黏结长度随胶层厚度增大逐渐增加。相同荷载下各试件的单个MS密封胶测点实测最大应变随胶层厚度增加逐渐减小,测点出现应变激增的荷载值随胶层厚度增加而增大。取荷载值为62.0 kN时JG-1-JG-4的单个MS密封胶应变测点的实测数据最大值依次为:8.13x 10 3  7.95x 10 37.73x 10 37.66x 10 3。说明胶层厚度增加使黏结界面的应力分布趋于均匀,局部应力集中放缓。取典型荷载下(荷载值见图11)JG-1-JG-4纯弯段及加载点两侧105 mm区域内的MS密封胶应变实测数据计算平均值,结果依次为:5.77x 10 3  6.02x 10 38.50x 10 310.02x 10 3。胶层厚度从0.5 mm逐渐增至3 mm时,破坏前黏结界面高应力区域的MS密封胶应变平均值增大73.7%。说明胶层厚度增加使界面黏结性能提升,MS密封胶布的材料利用率提高、抗弯贡献增大。胶层厚度变化对界面黏结性能的影响与文献在单剪试验中所得出的结论趋势一致。www.sdyuantai.com

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