一、碳纖維布是什么加固材料
加固材(cai)(cai)料是(shi)對建筑物進行加固處理的(de)材(cai)(cai)料,碳(tan)(tan)纖(xian)維布(bu)(bu)就是(shi)一種(zhong)常用的(de)加固材(cai)(cai)料,是(shi)利(li)用專用結(jie)構(gou)膠將碳(tan)(tan)纖(xian)維布(bu)(bu)粘(zhan)貼在(zai)混凝(ning)土(tu)表面(mian),形(xing)(xing)成復(fu)合結(jie)構(gou),碳(tan)(tan)纖(xian)維布(bu)(bu)通過與混凝(ning)土(tu)之間(jian)協(xie)同工(gong)作,對構(gou)件(jian)或(huo)結(jie)構(gou)起到加固及改善(shan)受力性能的(de)作用,能有效改善(shan)結(jie)構(gou)狀(zhuang)態(減少變(bian)形(xing)(xing)、降低原有結(jie)構(gou)應(ying)力、減少裂縫)。
二、加固碳纖維布需要送檢嗎
需要。
加(jia)固(gu)碳纖維布(bu)不(bu)僅施工(gong)(gong)(gong)(gong)前需(xu)(xu)要(yao)(yao)送檢(jian),加(jia)固(gu)工(gong)(gong)(gong)(gong)程(cheng)完(wan)工(gong)(gong)(gong)(gong)后也需(xu)(xu)要(yao)(yao)對(dui)碳纖維布(bu)及工(gong)(gong)(gong)(gong)程(cheng)的質量進行復檢(jian),這是《工(gong)(gong)(gong)(gong)程(cheng)結構加(jia)固(gu)材(cai)料安全性(xing)(xing)鑒(jian)定(ding)技術規范》工(gong)(gong)(gong)(gong)程(cheng)規范要(yao)(yao)求(qiu)的規定(ding):在工(gong)(gong)(gong)(gong)程(cheng)正式(shi)施工(gong)(gong)(gong)(gong)前和(he)工(gong)(gong)(gong)(gong)程(cheng)完(wan)工(gong)(gong)(gong)(gong)后,都需(xu)(xu)要(yao)(yao)對(dui)工(gong)(gong)(gong)(gong)程(cheng)所用的加(jia)固(gu)材(cai)料進行一個安全性(xing)(xing)的檢(jian)測。
由于碳(tan)纖維布用于加(jia)固(gu)處理(li),如果(guo)使(shi)用了(le)不合(he)格的(de)碳(tan)纖維布,會(hui)對(dui)建筑結構造成(cheng)危害,因此需要選擇正規廠家生產(chan)的(de)加(jia)固(gu)碳(tan)纖維布,并保證(zheng)其各項(xiang)指標數據能(neng)通過檢查。
三、加固碳纖維布檢測項目有哪些
加固碳纖維布送(song)檢需要檢測(ce)的項目有很多:
1、施工前(qian),需要檢測加固碳纖維布的材料力學性(xing)能,包括其(qi)抗拉強度、彈(dan)性(xing)模量和伸長率等。
2、施工完成后,復檢主要是通過錘擊法來檢測碳纖維布的(de)粘貼質量,通(tong)過對每一寸的(de)碳(tan)纖維布進行錘擊(ji),檢測碳(tan)纖維布與(yu)混凝土(tu)之間是否(fou)存(cun)在空鼓(gu)情況,如發(fa)現空鼓(gu),則說明(ming)碳(tan)纖維布與(yu)混凝土(tu)沒(mei)有(you)完全(quan)貼合,沒(mei)用(yong)達到共同受力的(de)目的(de),如空鼓(gu)面積(ji)(ji)低(di)于施(shi)工總面積(ji)(ji)的(de)95%,則說明(ming)此次加固工程是不合格的(de),需要對工程進行返工。