Iifiber zePolypropylene (i-PP fibers) zisetyenziswa ngokuqhelekileyo njengezinto zokuqiniswa kwikhonkrithi ukuze kuphuculwe iimpawu zayo zomatshini kunye nokuqina. Nazi ezinye iindima eziphambili ze-polypropylene fibers kwikhonkrithi:

1. Ukulawulwa kwe-Crack: Enye yeendima eziphambili ze-PP fibers kwikhonkrithi kukulawula ukubunjwa kunye nokusasazwa kweentanda. Ezi ntsinga zisebenza njenge-micro-reinforcement kuyo yonke i-matrix yekhonkrithi, inceda ukusabalalisa uxinzelelo ngokulinganayo kunye nokunciphisa amathuba okwakheka kokuqhekeka. Ngokulawula ii-cracks, iifiber zePP zinokuphucula ukuqina okupheleleyo kunye nobomi bezakhiwo eziphathekayo.
2. Ukuphuculwa kokuqina kunye ne-Ductility: Ukufakwa kwe-PP fibers kwandisa ukuqina kunye ne-ductility yekhonkrithi. Le micu inika amandla okongeziweyo okuqina kwi-matrix yekhonkrithi, iyenza ixhathise ngakumbi kwimpembelelo kunye nokulayisha okuguquguqukayo. Oku kuqina okuphuculweyo kunokuba luncedo ngakumbi kwizicelo apho ikhonkrithi iphantsi kwetrafikhi enzima, umsebenzi wenyikima, okanye ezinye iindlela zoxinzelelo lomatshini.
3. Ukunciphisa i-Shrinkage Cracking: I-Shrinkage cracking yinto eqhelekileyo kwikhonkrithi ebangelwa ukulahlekelwa ngumswakama ngexesha lokunyanga. Iifiber zePP zinceda ukunciphisa ukuqhekeka kwe-shrinkage ngokunciphisa i-shrinkage yonke yekhonkrithi kunye nokubonelela ngokuqiniswa kwangaphakathi okuchasayo ukubunjwa kokuqhekeka.
4. Ukomelezwa kokuqina: Iifiber zePP zinokuphucula ukuqina kwezakhiwo zekhonkrithi ngokunciphisa amathuba okuqhekeka kunye nokwandisa ukuchasana nezinto ezisingqongileyo ezifana nemijikelo ye-freeze-thaw, ukuvezwa kweekhemikhali, kunye ne-abrasion. Oku komelela okongeziweyo kunokukhokelela kubomi benkonzo obude kunye nokuncitshiswa kweemfuno zokulondolozwa kwezakhiwo eziphathekayo.
5. Ukulawulwa kwePlastiki yokuShrinkage Cracking: Kwikhonkrithi entsha, ukukhuphuka ngokukhawuleza komswakama ukusuka kumphezulu kunokukhokelela ekuqhekekeni kweplastiki. Iifiber zePP zinceda ukulawula ukuqhekeka kweplastiki ngokubonelela ngokuqiniswa kwikhonkrithi kwasebancinci, ngaphambi kokuba iphole ngokupheleleyo kwaye ifumane amandla aneleyo okuxhathisa ukuqhekeka.
6. Ukuphuculwa kokumelana nomlilo: Iifiber ze-polypropylene zinokuphucula ukuxhathisa umlilo wekhonkrithi ngokunciphisa i-spalling, eyenzeka xa umphezulu wekhonkrithi uqhuma okanye uphahla ngenxa yokufudumeza ngokukhawuleza. Iifibers zinceda ukubopha ikhonkrithi ngokufanelekileyo ngakumbi, ukuthintela ukusasazeka kweentanda kunye nokunciphisa umngcipheko wokutshatyalaliswa ngexesha lomlilo.
7. Ukulula kokuPhatha kunye nokuxuba: Iifiber zePP zikhaphukhaphu kwaye zisasazeka ngokulula kwimixube yekhonkrithi, izenza kube lula ukuphatha kunye nokuxuba kwisiza. Oku kulula ukuphatha kuququzelela ukufakwa kweefiber kwikhonkrithi ngaphandle kweenguqu ezibalulekileyo kwinkqubo yokwakha.

Ngokubanzi, iifayibha ze-polypropylene zidlala indima ebalulekileyo ekuphuculeni ukusebenza, ukuqina, kunye nokuqina kwezakhiwo zekhonkrithi, okwenza ukuba ibe yinto eyongezelelweyo exabisekileyo kuluhlu olubanzi lwezicelo zokwakha.