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Daim Duab Polypropylene yog li qhov sib txawv ntawm cov kab mob uas muaj ntau yam qhov chaw nyob rau hauv qhov tseem ceeb ntawm kev kho qhov tseem ceeb. Qhov tseem ceeb yog muaj ntau yam qhov chaw nyob rau hauv qhov tseem ceeb, puav leej ntawm qhov chaw nyob rau hauv qhov tseem ceeb, qhov chaw nyob rau hauv qhov tseem ceeb, qhov chaw nyob rau hauv qhov tseem ceeb thiab qhov chaw nyob rau hauv qhov tseem ceeb. Cov qhov tseem ceeb uas tsis muaj qhov tseem ceeb thiab cov qhov tseem ceeb uas tsis muaj qhov tseem ceeb yog muaj qhov tseem ceeb rau qhov tseem ceeb, qhov tseem ceeb, qhov tseem ceeb thiab qhov tseem ceeb rau qhov tseem ceeb. Yog li cas, polypropylene fiber yog qhov tseem ceeb uas muaj qhov tseem ceeb thiab qhov tseem ceeb rau qhov tseem ceeb, qhov tseem ceeb thiab qhov tseem ceeb rau qhov tseem ceeb, thiab qhov tseem ceeb yog qhov tseem ceeb thiab qhov tseem ceeb rau qhov tseem ceeb. Qhov no yog qhov tseem ceeb uas muaj qhov tseem ceeb thiab qhov tseem ceeb rau qhov tseem ceeb.
Qhov yuam kev zoo tshaj plaws ntawm polypropylene fiber rau tunnel engineering yog qhov kev pab tswj hwm qhov khaub ncaws tsis raug. Cov concrete rau tunnel yuav muaj qhov khaub ncaws tsis raug ntau rau lub caij uas nws tau txais thiab ua kom zoo. Rau qhov khaub ncaws ntawm qhov roob thiab qhov roob ntawm cov roob, cov khaub ncaws tsis raug ntau yuav muaj rau hauv thiab rau hauv cov roob. Cov khaub ncaws tsis raug no yuav ntxiv ntxiv mus rau thaum ntev, uas ua rau cov roob tsis zoo thiab muaj qhov xwm npaj rau kev nyab soom. Thaum muab polypropylene fiber rau hauv concrete, cov fiber ntau yuav muaj rau hauv concrete thiab ua rau cov fiber ntau ua rau cov roob zoo dua. Qhov structure no yuav pab tswj hwm qhov khaub ncaws tsis raug hauv cov roob, tswj hwm qhov khaub ncaws tsis raug ntau hauv cov roob, thiab tswj hwm qhov khaub ncaws tsis raug ntau kom tsis txhob ntxiv mus rau qhov khaub ncaws tsis raug loj. Nws pab tshem qhov khaub ncaws tsis raug thiab ua rau cov roob zoo dua.
Fiber polypropylene yuav pab tshaj plaws rau kev tsis muaj ntaub ntawv thiab kev tsis muaj dej ntawm qhov chaw ua haujlwm. Kev dej nplooj yog qhov teeb meem tseem ceeb tshaj plaws rau kev ua haujlwm ntawm qhov chaw. Muaj ntau ntau lub qhov ntsuas nyob hauv concrete tshwj xeeb, uas yog qhov chaw uas dej tuaj noj. Yog tias dej nplooj tau ntev dua, nws yuav pab cuam tshuam rau kev nplooj ntawm lub tshuab, kev nplooj ntawm cov hlau, kev nplooj ntawm lub tshuab thiab kev nplooj ntawm lub tshuab, uas yuav pab cuam tshuam rau kev siv tau ntev dua ntawm qhov chaw. Cov fiber uas muaj kev faib tswv yim yuav pab tshaj plaws rau kev nplooj ntawm cov qhov ntsuas, txo kev nplooj ntawm dej hauv, thiab pab tshaj plaws rau kev tsis muaj dej thiab kev tsis muaj dej nplooj ntawm concrete. Nws yuav pab tshaj plaws rau kev tsis muaj dej nplooj hauv qhov chaw, kev nplooj ntawm lub tshuab thiab kev nplooj ntawm lub tshuab los ntawm dej hauv av.
Qhov ntaub ntawv no yuav pab tshaj tshuaj rau qhov ntau thiab qhov kub siab ntawm cov duab ntawm lub rooj tsis. Yog li ntawd, lub rooj tsis tsis muaj qhov kub siab los ntawm qhov rooj tsis hauv qab, qhov kub siab ntawm cov rooj tsis thiab qhov kub siab los ntawm qhov kub siab ntawm cov rooj tsis. Qhov ntaub ntawv tsis yog qhov ntaub ntawv uas muaj qhov kub siab tsis zoo thiab tsis muaj qhov kub siab. Nws yuav tshem tawm thiab tshem tawm rau qhov kub siab thiab qhov kub siab ntawm qhov kub siab. Polypropylene fiber yuav pab tshaj tshuaj qhov kub siab thiab qhov kub siab ntawm qhov ntaub ntawv, pab tshaj tshuaj qhov kub siab thiab qhov kub siab ntawm qhov ntaub ntawv, tshem tawm qhov kub siab thiab qhov kub siab ntawm qhov ntaub ntawv, thiab pab tshaj tshuaj qhov kub siab thiab qhov kub siab ntawm qhov rooj tsis.
Fiber polypropylene muaj qhov zoo heev rau kev tiv tau lub cim ntawm kev cuam tshuam thiab kev cuam tshuam los ntawm cov khoom siv hauv qhov chaw uas tsis muaj dej thiab tsis muaj dej. Lub tebchaws hauv qhov chaw uas tsis muaj dej thiab tsis muaj dej yog qhov muaj dej thiab tsis muaj dej txhua hnub, thiab muaj ntau yam khoom siv uas cuam tshuam rau dej thiab dej. Cov khoom siv concrete tswv yim yog qhov muaj dej thiab tsis muaj dej rau kev cuam tshuam thiab kev cuam tshuam. Fiber polypropylene muaj qhov zoo heev rau kev tiv tau lub cim ntawm kev cuam tshuam thiab kev cuam tshuam los ntawm cov khoom siv hauv qhov chaw uas tsis muaj dej thiab tsis muaj dej. Nws tsis tuaj yeem cuam tshuam, cuam tshuam, lossis cuam tshuam rau kev cuam tshuam thiab kev cuam tshuam los ntawm cov khoom siv hauv qhov chaw uas tsis muaj dej thiab tsis muaj dej, thiab nws yuav muaj qhov zoo heev rau kev tiv tau lub cim ntawm kev cuam tshuam thiab kev cuam tshuam los ntawm cov khoom siv hauv qhov chaw uas tsis muaj dej thiab tsis muaj dej, thiab nws yuav muaj qhov zoo heev rau kev tiv tau lub cim ntawm kev cuam tshuam thiab kev cuam tshuam los ntawm cov khoom siv hauv qhov chaw uas tsis muaj dej thiab tsis muaj dej.
Ntawm lwm yam, polypropylene fiber pab txhais kom cov concrete rau hauv lub tsev kho thiab qhov sib xyaw ntawm qhov ceev ntau. Yog tias muaj qhov ceev ntau los sis qhov tsaus ntuj rau hauv lub tsev kho, cov concrete tshwj xeeb yuav raug tshem thiab tshem ntau dua li cov ceev ntau hauv cov ntaub ntawv. Cov fiber ntau ntau hauv cov concrete yuav tshem thaum ceev ntau kom muaj cov qhov ntau ntau, uas pab txhais cov steam hauv cov ntaub ntawv thiab pab tshem qhov tshem thiab qhov tshem ntau ntawm cov concrete. Qhov kev ua no pab txhais kom cov tsev kho tau zoo dua thaum muaj qhov ceev ntau heev.
Nyob rau hauv kev sib xyaw nyob hauv qhov kev sib xyaw ntawd, polypropylene fiber muaj qhov sib xyaw zoo thiab tsis muaj ntau tshaj li kev sib xyaw. Nws muaj qhov sib xyaw zoo thiab tsis txhawj li nws yuav tsum tau sib xyaw los ntawm concrete mixing. Nws tsis txhawj li nws yuav tsum tau sib xyaw los ntawm qhov sib xyaw thiab kev sib xyaw ntawm concrete, thiab tsis xav tau sib xyaw lub tshuab thiab kev sib xyaw. Nws muaj qhov sib xyaw ntxiv thiab qhov sib xyaw zoo, thiab yog qhov sib xyaw rau concrete ntawm lub tunnel ntawm qhov sib xyaw ntau, shotcrete support, lub tunnel ntawm qhov sib xyaw thiab mortar reinforcement rau lub tshuab sib xyaw.
Tus rau, polypropylene fiber yog qhov nqi siab uas tsis tuaj yeem txhawj rau kev kho tsev nyob hauv qhov rooj. Nws pab paub cov cuab yeej uas muaj nyob rau hauv qhov concrete ntawm rooj uas muaj kev ua haujlwm tsis zoo li: muaj kev cim, tsis zoo rau cov dej, muaj kev nyuaj thiab tsis nyuaj dua. Nws pab tshem cov cuab yeej uas muaj nyob rau hauv qhov rooj, pab tshem kev cim, pab tshem dej, pab tshem kev nyuaj thiab pab tshem kev nyuaj dua, pab tshem kev siv tau ntau dua, thiab pab tshem kev nyuaj thiab kev nyuaj dua rau qhov rooj.
