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Method for enhancing durability of debonding layer of concrete expansion joint
The invention discloses a method for enhancing durability of a debonding layer of a concrete expansion joint, which belongs to the technical field of treatment of concrete expansion joints and comprises the following steps: S1, foundation preparation: cleaning concrete surfaces on two sides of the expansion joint to ensure that the surfaces are flat, clean and dry, and designing the structural size and shape of the debonding layer according to the size and shape of the expansion joint; the ultra-high performance concrete (UHPC) is adopted as a bottom surface layer material, the strength grade of the UHPC is larger than C120, and compared with common concrete or low-performance concrete commonly used in the prior art, the UHPC has higher strength and durability and can better bear external loads and environmental influences. Meanwhile, a plurality of round protrusions are distributed on the PTFE friction layer in an array mode, the protrusions and the PTFE friction layer are integrally formed, the friction force between the PTFE layer and the UHPC bottom face layer is enhanced, and the overall performance of the bonding layer is improved.
本发明公开了一种增强混凝土伸缩缝脱粘层耐久性的方法，属于混凝土伸缩缝的处理技术领域，包括以下步骤：S1.基础准备：清理伸缩缝两侧的混凝土表面，确保表面平整、清洁、干燥，根据伸缩缝的尺寸和形状，设计脱粘层的结构尺寸和形状；本发明采用了超高性能混凝土(UHPC)作为底面层材料，其强度等级大于C120，与现有技术中常用的普通混凝土或低性能混凝土，UHPC具有更高的强度和耐久性，能够更好地承受外部荷载和环境影响。同时，在PTFE摩擦层上阵列分布多个圆形凸起，这些凸起与PTFE摩擦层为一体成型设置，增强PTFE层与UHPC底面层之间的摩擦力，提高粘结层的整体性能。
Method for enhancing durability of debonding layer of concrete expansion joint
The invention discloses a method for enhancing durability of a debonding layer of a concrete expansion joint, which belongs to the technical field of treatment of concrete expansion joints and comprises the following steps: S1, foundation preparation: cleaning concrete surfaces on two sides of the expansion joint to ensure that the surfaces are flat, clean and dry, and designing the structural size and shape of the debonding layer according to the size and shape of the expansion joint; the ultra-high performance concrete (UHPC) is adopted as a bottom surface layer material, the strength grade of the UHPC is larger than C120, and compared with common concrete or low-performance concrete commonly used in the prior art, the UHPC has higher strength and durability and can better bear external loads and environmental influences. Meanwhile, a plurality of round protrusions are distributed on the PTFE friction layer in an array mode, the protrusions and the PTFE friction layer are integrally formed, the friction force between the PTFE layer and the UHPC bottom face layer is enhanced, and the overall performance of the bonding layer is improved.
本发明公开了一种增强混凝土伸缩缝脱粘层耐久性的方法，属于混凝土伸缩缝的处理技术领域，包括以下步骤：S1.基础准备：清理伸缩缝两侧的混凝土表面，确保表面平整、清洁、干燥，根据伸缩缝的尺寸和形状，设计脱粘层的结构尺寸和形状；本发明采用了超高性能混凝土(UHPC)作为底面层材料，其强度等级大于C120，与现有技术中常用的普通混凝土或低性能混凝土，UHPC具有更高的强度和耐久性，能够更好地承受外部荷载和环境影响。同时，在PTFE摩擦层上阵列分布多个圆形凸起，这些凸起与PTFE摩擦层为一体成型设置，增强PTFE层与UHPC底面层之间的摩擦力，提高粘结层的整体性能。
Method for enhancing durability of debonding layer of concrete expansion joint
一种增强混凝土伸缩缝脱粘层耐久性的方法
LIANG YUFEI (author) / HWANG IL-CHAI (author) / HE WEI (author) / ZHANG RUI (author) / ZHANG XUN (author) / ZHANG FANG (author) / XIE MINGZHI (author)
2024-12-03
Patent
Electronic Resource
Chinese
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