TTM Asphalt Plant - Wopanga Zida Zosakaniza ndi Kubwezeretsanso za Asphalt Waukadaulo Kuyambira 2004.
Kodi munayamba mwadzifunsapo momwe misewu ya phula imapangidwira? Njirayi imayamba ndi chipangizo chofunikira chomwe chimadziwika kuti chomera chosakanizira phula. Ngati ndinu watsopano kudziko la zomangamanga za misewu kapena zomangamanga, mwina mukufunsa kuti, “Kodi chomera chosakanizira phula ndi chiyani?” M'nkhaniyi, tifufuza za momwe zomera zosakanizira phula zimagwirira ntchito, mitundu yawo, zigawo zake, ndi ntchito yawo pakukula kwa zomangamanga zamakono.
Chomera chosakanizira phula ndi malo omwe amagwiritsidwa ntchito popanga phula, chinthu chofunikira kwambiri popanga ndi kukonza misewu, misewu ikuluikulu, ndi malo oimika magalimoto. Asphalt ndi chisakanizo cha zinthu zosakaniza (monga mchenga, miyala, ndi miyala yophwanyika) ndi bitumen, chinthu chakuda chomata chochokera ku mafuta osakonzedwa. Chomerachi chimaphatikiza zinthuzi m'njira inayake kuti chipange malo osalala, olimba, komanso osagwedezeka ndi nyengo.
Ndiloleni ndikufotokozereni mwachidule: tangoganizirani kuti mukumanga msewu. Mukufuna chinthu cholimba mokwanira kuti chizitha kuyendetsa magalimoto ambiri koma chosinthasintha mokwanira kuti chipirire kusintha kwa kutentha. Pamenepo ndi pomwe phula limayambira, ndipo fakitale yosakanizira phula ndi pomwe zonse zimayambira.
Zomera zosakaniza asphalt zimapezeka m'mitundu yosiyanasiyana, iliyonse yopangidwa kuti ikwaniritse zosowa zinazake komanso zofunikira pakupanga. Magulu awiri akuluakulu ndi awa:
Zipangizo zosakaniza zamagulu zimapanga phula m'magulu osiyanasiyana. Gulu lililonse limayesedwa ndikusakanizidwa padera, kuonetsetsa kuti zinthu zomaliza zimayang'aniridwa bwino. Zipangizozi ndi zabwino kwambiri pamapulojekiti ang'onoang'ono mpaka apakatikati pomwe kusinthasintha kwa mapangidwe osakaniza ndikofunikira.
Zipangizo zosakaniza mosalekeza, monga momwe dzinalo likusonyezera, zimapanga phula mosalekeza. Zimagwira ntchito bwino kwambiri komanso zoyenera ntchito zazikulu pomwe kupanga kosalekeza ndikofunikira. Zipangizozi nthawi zambiri zimagwiritsidwa ntchito pomanga misewu yambiri.
Chomera chosakanizira phula chimapangidwa ndi zinthu zingapo zofunika zomwe zimagwirira ntchito limodzi kuti zitsimikizire kuti kupanga bwino. Tiyeni tiwone bwino zigawo zazikulu:
Zitini zophatikizana zimasunga zinthu zopangira monga mchenga, miyala, ndi miyala yophwanyika. Zinthu zimenezi zimalowetsedwa mu chomeracho m'njira inayake kuti apange chisakanizo chomwe mukufuna.
Mgolo wouma ndi komwe ma aggregates amatenthedwa ndi kuumitsidwa kuti achotse chinyezi. Mgolo wosakaniza umaphatikiza ma aggregates ouma ndi bitumen ndi zina zowonjezera kuti apange chisakanizo chomaliza cha phula.
Bitumeni imasungidwa m'matangi otetezedwa kuti isunge kukhuthala kwake ndikuletsa kuzizira. Matankiwo adapangidwa kuti atsimikizire kuti pali bitumen yokwanira panthawi yosakaniza.
Dongosolo lowongolera ndilo ubongo wa ntchitoyo. Limayang'anira ndikuwongolera njira yonse, kuonetsetsa kuti magawo oyenera a zosakaniza ndi phula zimagwiritsidwa ntchito. Zomera zamakono nthawi zambiri zimakhala ndi makina odzipangira okha apamwamba kuti zikhale zolondola komanso zogwira mtima kwambiri.
Njira yopangira phula imafuna masitepe angapo. Nayi chidule chosavuta:
Zipangizo zopangira (zophatikizana) zimalowetsedwa mu chomera kuchokera m'mabokosi osungiramo zinthu. Kuchuluka kwa chinthu chilichonse kumayesedwa mosamala kuti zitsimikizire kapangidwe koyenera ka zosakaniza.
Kenako zosakanizazo zimaumitsidwa ndikutenthedwa mu ng'oma yowumitsira kuti zichotse chinyezi chilichonse ndikuzikonzekera kusakaniza.
Zosakaniza zouma zimasakanizidwa ndi bitumen ndi zowonjezera mu ng'oma yosakanizira. Kuchuluka kwenikweni kumayendetsedwa ndi makina owongolera zomera.
Chisakanizo chomaliza cha phula chimatulutsidwa kuchokera ku fakitale ndikusamutsidwa kupita kumalo omangira kuti akayike ndi kukanikiza.
Zipangizo zosakanizira za phula zimathandiza kwambiri pakukula kwa zomangamanga zamakono. Popanda izo, kumanga misewu yolimba komanso yokhalitsa sikungakhale kotheka. Nazi zifukwa zingapo zomwe zomerazi zilili zofunika kwambiri:
Zipangizo zosakaniza asphalt zimaonetsetsa kuti chinthu chomaliza chikukwaniritsa miyezo yokhwima. Kukhazikika kumeneku n'kofunika kwambiri popanga misewu yomwe imatha kupirira magalimoto ambiri komanso nyengo yoipa.
Malo osakaniza phula amakono apangidwa kuti azigwira ntchito bwino, zomwe zimachepetsa nthawi yopangira komanso ndalama zomwe zimagwiritsidwa ntchito. Izi zimapangitsa kuti akhale njira yotsika mtengo yogwiritsira ntchito ntchito zazikulu zomanga.
Zomera zambiri zamakono zili ndi zida zowongolera chilengedwe kuti zichepetse fumbi ndi mpweya woipa. Izi zimapangitsa kuti zikhale zotetezeka ku chilengedwe kuposa zitsanzo zakale.
Ndiye, kodi fakitale yosakanizira phula ndi chiyani? Ndi fakitale yotsogola yomwe imagwira ntchito yofunika kwambiri popanga zipangizo zofunika pomanga misewu. Kaya mukugwira ntchito yaing'ono yakomweko kapena msewu waukulu, fakitale yosakanizira phula ndi chida chofunikira kwambiri pakutsimikizira kuti chinthu chomaliza chili bwino komanso cholimba. Mukamvetsetsa momwe mafakitalewa amagwirira ntchito, mutha kuyamikira bwino uinjiniya ndi kulondola komwe kumachitika pomanga misewu yomwe timagwiritsa ntchito tsiku lililonse.