桶裝植筋膠的使用方法
1、定位
按照設計(ji)要求(qiu)利用鋼(gang)筋(jin)探測儀(避開鋼(gang)筋(jin))準確確定(ding)鉆孔的位置。
2、鉆孔
使用電(dian)動沖(chong)擊鉆(zhan)在確定位(wei)置(zhi)(zhi)(zhi)按設(she)計(ji)要求(qiu)(深度、孔(kong)(kong)(kong)徑)鉆(zhan)孔(kong)(kong)(kong),為保(bao)證(zheng)充(chong)分發揮(hui)被錨固鋼筋(jin)(jin)(jin)(jin)的作用,鋼筋(jin)(jin)(jin)(jin)的埋設(she)及孔(kong)(kong)(kong)徑應嚴格按照(zhao)設(she)計(ji)要求(qiu),鉆(zhan)孔(kong)(kong)(kong)時不(bu)得破壞原混(hun)凝土(tu)構(gou)件(jian)的結構(gou),不(bu)得切損構(gou)件(jian)原有主筋(jin)(jin)(jin)(jin)和(he)其他受力鋼筋(jin)(jin)(jin)(jin)。成孔(kong)(kong)(kong)后的孔(kong)(kong)(kong)壁必須完整(zheng)無損,無裂縫、蜂窩、孔(kong)(kong)(kong)道。(如果孔(kong)(kong)(kong)眼(yan)(yan)(yan)與構(gou)件(jian)鋼筋(jin)(jin)(jin)(jin)位(wei)置(zhi)(zhi)(zhi)不(bu)相重(zhong)合,按設(she)計(ji)圖布置(zhi)(zhi)(zhi)膨脹螺栓(shuan)用孔(kong)(kong)(kong)眼(yan)(yan)(yan);如果孔(kong)(kong)(kong)眼(yan)(yan)(yan)與構(gou)件(jian)鋼筋(jin)(jin)(jin)(jin)位(wei)置(zhi)(zhi)(zhi)相重(zhong)合時,為保(bao)證(zheng)不(bu)傷原有構(gou)件(jian)鋼筋(jin)(jin)(jin)(jin),將孔(kong)(kong)(kong)眼(yan)(yan)(yan)作適當的調(diao)整(zheng),并將調(diao)整(zheng)后孔(kong)(kong)(kong)眼(yan)(yan)(yan)布置(zhi)(zhi)(zhi)畫成草圖或(huo)做好(hao)記(ji)錄)。
3、清孔
成(cheng)孔(kong)(kong)后應立即清(qing)理,使用毛刷清(qing)除(chu)孔(kong)(kong)壁(bi)的灰粉(fen)不得(de)少于(yu)3次,吹出粉(fen)塵(chen),孔(kong)(kong)內應完全干(gan)燥,使用棉紗蘸取丙(bing)酮擦拭孔(kong)(kong)壁(bi)一遍。清(qing)孔(kong)(kong)后若(ruo)不能(neng)及時植筋,必須臨(lin)時封堵孔(kong)(kong)口,防止塵(chen)土、砂(sha)礫等進入(ru)孔(kong)(kong)內。
4、鋼筋去污
采用(yong)機械方法或者(zhe)鋼(gang)絲刷(shua)除(chu)去鋼(gang)筋(jin)植入部分表面鐵銹和氧化層,然后(hou)使用(yong)丙(bing)酮(tong)除(chu)去鋼(gang)筋(jin)上殘留的油(you)污。已經處(chu)理過(guo)的鋼(gang)筋(jin)應該盡快植入孔(kong)內,避免(mian)重(zhong)新(xin)生銹或粘上油(you)污。
5、配膠
按需用(yong)膠量(liang)取桶裝植筋膠的A、B料(liao)(依照使(shi)用(yong)說明分(fen)別量(liang)取),并快速混合均勻。
6、注膠
膠液應盡快低壓(ya)注(zhu)入到孔(kong)中,排出氣泡,保(bao)證膠層(ceng)飽滿。
7、植筋
插(cha)入(ru)鋼筋用固(gu)(gu)定(ding)(ding)卡在(zai)(zai)孔(kong)(kong)(kong)(kong)兩端(duan)將鋼筋固(gu)(gu)定(ding)(ding)(因橫梁(liang)(liang)植筋孔(kong)(kong)(kong)(kong)為通(tong)(tong)孔(kong)(kong)(kong)(kong),所以要保證鋼筋的位置固(gu)(gu)定(ding)(ding)),在(zai)(zai)固(gu)(gu)定(ding)(ding)卡預留注膠(jiao)孔(kong)(kong)(kong)(kong)和通(tong)(tong)氣孔(kong)(kong)(kong)(kong)(注膠(jiao)孔(kong)(kong)(kong)(kong)設于固(gu)(gu)定(ding)(ding)卡下方(fang),可任(ren)取(qu)一端(duan);通(tong)(tong)氣孔(kong)(kong)(kong)(kong)設于橫梁(liang)(liang)兩端(duan)固(gu)(gu)定(ding)(ding)卡上(shang)方(fang)并加(jia)設20cm向上(shang)通(tong)(tong)氣管(guan);通(tong)(tong)氣管(guan)管(guan)徑要小(xiao)(xiao)且緊貼植筋孔(kong)(kong)(kong)(kong)截面頂點(dian),在(zai)(zai)植筋孔(kong)(kong)(kong)(kong)截面頂點(dian)鑿一小(xiao)(xiao)缺(que)口安設通(tong)(tong)氣管(guan)),用快硬型環氧樹脂封塞孔(kong)(kong)(kong)(kong)端(duan)(保證注膠(jiao)孔(kong)(kong)(kong)(kong)和通(tong)(tong)氣孔(kong)(kong)(kong)(kong)暢通(tong)(tong))。
8、養護固化
已經(jing)植入孔內的鋼筋應在(zai)常溫下養護,不得擾動,24小時(shi)后(hou)可以(yi)進行下步施工作業(掛鋼板粘貼)。一般(ban)20℃時(shi)粘合劑在(zai)3-5天可以(yi)完全固化,現場抽樣檢驗(yan)應該(gai)在(zai)五天以(yi)后(hou)進行。
注射式植筋膠使用方法
1、標定空位
由設計(ji)單位設計(ji),劃線確定定位植(zhi)筋,看看我們(men)的工程哪些地方需要(yao)植(zhi)筋加固。
2、鉆孔
嚴格按照技(ji)術參數鉆(zhan)(zhan)孔(kong)(kong),我們必(bi)須按照,且嚴格按照技(ji)術規(gui)定(ding)植筋鉆(zhan)(zhan)孔(kong)(kong),如果不按照規(gui)定(ding)參數,直(zhi)接(jie)影響植筋的拉(la)拔效(xiao)果,最終影響植筋效(xiao)果。
3、清空孔內浮灰
吹盡(jin)孔內浮(fu)灰(hui),毛刷(shua)刷(shua)干(gan)(gan)(gan)凈(jing),反復刷(shua)、推(tui),直到把(ba)孔清干(gan)(gan)(gan)凈(jing),我們一(yi)定遵(zun)循原(yuan)則“三吹三推(tui)”,顧名思(si)義,就是用(yong)壓縮空氣吹盡(jin)孔內浮(fu)灰(hui),再用(yong)毛刷(shua)刷(shua)和推(tui),再一(yi)次吹,然后推(tui),反復進行這一(yi)步,直到孔內的浮(fu)灰(hui)干(gan)(gan)(gan)凈(jing)即可。
4、注膠前準備
在(zai)植筋(jin)膠(jiao)膠(jiao)瓶上裝好(hao)靜(jing)態混合(he)器,用膠(jiao)槍先(xian)少量的(de)擠掉前(qian)面混合(he)不均(jun)勻(yun)的(de)膠(jiao),然后在(zai)孔內(nei)注膠(jiao)。把前(qian)面不均(jun)勻(yun)的(de)膠(jiao)擠掉,不均(jun)勻(yun)會達不到效(xiao)果,所以要擠掉。
5、注膠方法
保證(zheng)從孔(kong)(kong)底至(zhi)孔(kong)(kong)口的(de)順序(xu),盡量不要(yao)混入氣泡,膠料(liao)應注(zhu)滿孔(kong)(kong)深(shen)的(de)2/3以上。根據我(wo)們十年加固材料(liao)經驗,注(zhu)入三分之二即可(ke)達到最好的(de)植(zhi)筋(jin)效果。
6、旋入鋼筋或螺桿
將鋼筋或螺(luo)桿(gan)旋入孔中(zhong),并上下抽動(dong)幾次(ci),以保(bao)證(zheng)粘膠的均勻(yun),不停(ting)的抽動(dong),增加受力面積,最(zui)大范圍使膠料粘接在鋼筋或者螺(luo)桿(gan)上。
7、固化養護
在常溫下養(yang)護時間(jian)為24小時,期間(jian)不能搖動桿體,養(yang)護后即可承(cheng)重。