Nkhani

Geogrid imagwiritsa ntchito ulusi wamphamvu kwambiri wa poliyesitala kapena ulusi wa polypropylene ngati zopangira, ndipo imagwiritsa ntchito mawonekedwe oluka oluka.Ulusi wopindika ndi wokhotakhota munsaluyo umakhala wopanda kupindika, ndipo mphambanoyo imamangidwa ndi ulusi wamphamvu kwambiri kuti apange cholumikizira cholimba, kupereka kusewera kwathunthu kumayendedwe ake amakina.Kodi mukudziwa momwe kutopa kwake kumalimbana ndi crack?
Chotsatira chachikulu cha zokutira kwa asphalt pamiyala yakale ya simenti ndikuwongolera magwiridwe antchito amiyala, koma sizimathandizira kwambiri pakubala.Mpanda wolimba wa konkire pansi pa zokutira umagwirabe ntchito yofunika kwambiri.Kuphimba kwa asphalt pamtunda wakale wa konkire wa asphalt ndi wosiyana.Kuphimba kwa asphalt kudzanyamula katunduyo pamodzi ndi miyala yakale ya konkire ya asphalt.Chifukwa chake, zokutira kwa asphalt pamiyala ya konkire ya asphalt sikungowonetsa ming'alu yowunikira, komanso ming'alu ya kutopa chifukwa cha nthawi yayitali ya katundu.Tiyeni tiwunikenso kupsinjika kwa phula la phula pamiyala yakale ya konkriti: chifukwa phula la asphalt ndi njira yosinthika yokhala ndi mawonekedwe ofanana ndi phula la phula, msewuwo umasokonekera ukakhudzidwa ndi katundu.Kuphimba kwa asphalt mwachindunji kukhudza gudumu kumapanikizika, ndipo pamwamba pake pamakhala zovuta m'dera lomwe limadutsa malire a gudumu.Chifukwa chakuti mphamvu zamagulu awiriwa zimakhala zosiyana komanso zimakhala pafupi ndi wina ndi mzake, kuphatikizika kwa madera awiriwa, ndiko kuti, kusintha kwadzidzidzi kwa mphamvu, ndikosavuta kuonongeka.Pansi pa mphamvu yolemetsa kwa nthawi yayitali, kusweka kwa kutopa kumachitika.
Pakuphimba kwa asphalt, geotextile imatha kumasula kupsinjika kwapamwambaku komanso kupsinjika kwamphamvu, ndikupanga malo otchinga pakati pa madera awiriwa.Pano, kupanikizika kumasintha pang'onopang'ono osati mwadzidzidzi, kuchepetsa kuwonongeka kwa phula la asphalt chifukwa cha kusintha kwadzidzidzi kwachisokonezo.Kutsika kochepa kwa galasi fiber geogrid kumachepetsa kupotoza kwa msewu ndikuwonetsetsa kuti msewuwo sudzavutika ndi kusintha kwakusintha.
Unidirectional geogrid ndi extruded mu mapepala woonda ndi polima (polypropylene PP kapena polyethylene HDPE), ndiyeno kukhomerera mu mauna wokhazikika, ndiyeno anatambasula motalika.Pochita izi, polima ali mumtundu wofananira, ndikupanga mawonekedwe atali ovundikira amtaneti ndikugawa yunifolomu komanso mphamvu yayikulu ya node.
Gululi wa unidirectional ndi mtundu wamphamvu kwambiri wa geosynthetics, womwe ukhoza kugawidwa mu gridi unidirectional polypropylene grid ndi unidirectional polyethylene grid.
Uniaxial tensile geogrid ndi mtundu wa geotextile wamphamvu kwambiri wokhala ndi ma polima apamwamba kwambiri ngati zida zazikulu, zowonjezeredwa ndi anti ultraviolet ndi anti-aging agents.Pambuyo potambasula unidirectional, mamolekyu oyambirira omwe amagawanika amasinthidwa kukhala mzere wozungulira, kenako amachotsedwa mu mbale yopyapyala, kukhudza mauna ochiritsira, ndiyeno kutambasula motalika.Sayansi Yazinthu.
Pochita izi, polima imatsogozedwa ndi dziko lozungulira, ndikupanga mawonekedwe atalitali amtundu wa elliptical network yogawa yunifolomu komanso mphamvu yayikulu ya node.Kapangidwe kameneka kamakhala ndi mphamvu zolimbikira kwambiri komanso ma tensile modulus.Mphamvu yamakokedwe ndi 100-200Mpa, pafupi ndi mlingo wa chitsulo chochepa cha carbon, chomwe chiri bwino kwambiri kuposa zipangizo zamakono kapena zolimbikitsira zomwe zilipo.
Makamaka, mankhwalawa ali ndi ultra-high oyambirira mlingo wapadziko lonse (kutalika kwa 2% - 5%) mphamvu zamakokedwe ndi nyonga modulus.Amapereka dongosolo labwino la kudzipereka kwa nthaka ndi kufalikira.Izi zimakhala ndi mphamvu zolimba kwambiri (> 150Mpa) ndipo zimagwiritsidwa ntchito ku dothi zosiyanasiyana.Ndi mtundu wa zinthu zolimbikitsira zomwe zimagwiritsidwa ntchito kwambiri masiku ano.Makhalidwe ake akuluakulu ndi mphamvu zamakokedwe apamwamba, ntchito zabwino zokwawa, zomangamanga zosavuta komanso mtengo wotsika.