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碳纤维加固(剪力墙碳纤维加固方法有谁知道)

2023-02-25


剪力墙碳纤维加固方法有谁知道

加固方法: 1、贯通裂缝内外两侧环氧封边胶同时封闭,间距300mm设注胶嘴,采用高流动性环氧结构胶,使用专用注胶器缓慢注入渗透,保证裂缝位置充实。 2、环氧结构胶封闭后,打磨平整施工面层粘贴碳纤维布,剪力墙内侧200mm宽幅碳纤维布沿贯通裂缝方向粘贴,间距500mm设100mm宽度压条一道剪力墙外侧200mm宽幅碳纤维布沿贯.通裂缝方向双层粘贴,间距500mm设100mm宽度压条一道双层粘贴。 200mm宽幅碳纤维布长度为2000mm, 压条长度为800mm.,碳纤维布表面覆盖环氧结构胶沾沙?;げ恪?img 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大家都在问

碳纤维粘贴加固的间距是指贴上后两条边的空白的距离,一般是10公分或者20公分这样的距离,要看设计图纸。希望我的回答能帮到您。

大家都在问

还是要做防火涂料的。碳纤维加固好了以后要做一层处理,用防火涂料,还有就是刚做好要在碳纤维布的表面洒上一点细沙来增加抹灰时候的摩擦性,从而抹灰后不会掉,而且不会开裂。也可同往砼板上抹灰注意事项相同,有往砼板上抹灰的经验就行。

大家都在问

建筑增加荷载,可以用碳纤维加固。 加固碳纤维布加固每平方价格大约在200-500之间,主要有人工成本和材料成本。 材料成本包括碳纤维布和粘贴碳纤维布用的碳纤维布胶。 另外碳纤维布,也有多种规格,200g/㎡、300g/㎡、600g/㎡不等!造成最终的价格也不一样的。

碳纤维加固施工工艺是怎样的

施工工艺:卸荷→基底处理→涂底胶→找平→粘贴→保护。
1、 卸荷
加固前应对所加固的构件尽可能卸荷。
2、 基底处理
2.1 混凝土表层出现剥落、空鼓、蜂窝、腐蚀等劣化现象的部位应予以凿除,对于较大面积的劣质层在凿除后应用环氧砂浆进行修复。
2.2 裂缝部位应首先进行封闭处理。
2.3 用混凝土角磨机、砂纸等机具除去混凝土表面的浮浆、油污等杂质,构件基面的混凝土要打磨平整,尤其是表面的凸起部位要磨平,转角粘贴处要进行倒角处理并打磨成圆弧状(R≥10mm)。
2.4 用吹风机将混凝土表面清理干净,并保持干燥。
3、 涂底胶(FP胶)
3.1 按主剂∶固化剂=2∶1的比例将主剂与固化剂先后置于容器中,用弹簧秤计量,电动搅拌器均匀搅拌,根据现场实际气温决定用量并严格控制使用时间。一般情况下1h内用完。
3.2 用滚筒刷将底胶均匀涂刷于混凝土表面,待胶固化后(固化时间视现场气温而定,以指触干燥为准)再进行下一工序施工。一般固化时间为2~3d。
4、 找平
4.1 混凝土表面凹陷部位应用FE胶填平,模板接头等出现高度差的部位应用FE胶填补,尽量减小高度差。
4.2 转角处也应用FE胶修补成光滑的圆弧,半径不小于10mm。
5、 粘贴
5.1 按设计要求的尺寸及层数裁剪碳纤维布。
5.2 调配、搅拌粘贴材料FR胶(使用方法与底胶FP相同),然后均匀涂抹于待粘贴的部位,在搭接、混凝土拐角等部位要多涂刷一些。
5.3 粘贴碳纤维布,在确定所粘贴部位无误后,用特制滚子反复沿纤维方向滚压,去除气泡,并使FR胶充分浸透碳纤维布。多层粘贴应重复上述步骤,待碳纤维布表面指触干燥方可进行下一层的粘贴。
5.4 在最后一层碳纤维布的表面均匀涂抹FR胶。
5.5 碳纤维布沿纤维方向的搭接长度不得小于100mm,碳纤维端部固定用横向碳纤维或粘钢固定(压条)。
6、 ?;?
加固后的碳纤维布表面应采取抹灰或喷防火涂料进行?;?。

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