15 ga Satumba, 2021
Yanayin wurare masu zafi na kudu maso gabashin Asiya yana gabatar da wasu ƙalubalen ƙalubalen da ake buƙata don shimfidar kwalta. Wannan labarin yayi nazarin yadda gyaran kwalta ya tsawaita rayuwar pavement a ƙarƙashin waɗannan yanayi.
Yanayin zafi na kudu maso gabashin Asiya - yanayin zafi na shekara-shekara na 25-30 ° C, ruwan sama na shekara-shekara na 1,500-3,000 mm, da yanayin zafi na 75-90% - yana gabatar da wasu ƙalubalen ƙalubalen da ake buƙata don shimfida kwalta a duniya. Wadannan kalubale guda uku sun bayyana kamar haka. Na farko, zafi mai dorewa - yanayin zafi na bakin kwalta zai iya kaiwa 60-70 ° C a lokacin rani, mai nisa sama da wurin laushi na bitumen, yana haifar da lalacewa - nakasar tsayin daka - ƙarƙashin cunkoson ababen hawa. Na biyu, ruwan sama mai yawa - tsananin guguwa na ɗan gajeren lokaci (yawancin biranen kudu maso gabashin Asiya na iya samun ruwan sama na 50-100 mm a kowace awa) suna haifar da tunani a kan titin, kuma ruwa ya shiga cikin ma'aunin bitumen-gami da yawa a ƙarƙashin kaya, yana haifar da lalacewar ruwa - ciki har da ramuka, cirewa, da asarar jimlar. Na uku, babban zafi da UV radiation - high zafin jiki da kuma zafi hanzarta oxidative tsufa na bitumen, yayin da zafin wurare masu zafi UV radiation kara inganta photo-oxidative lalatar haske juzu'i a cikin bitumen. Waɗannan ƙalubalen guda uku tare suna nufin cewa rayuwar ƙirar kwalta a kudu maso gabashin Asiya shine yawanci kashi 60-70% na waccan a cikin yankuna masu zafi, yayin da kasafin kuɗi ya fi ƙanƙanta.
Rutting shine matsala mafi yawan gama gari kuma mai tasirin tattalin arziki akan titin kwalta na kudu maso gabashin Asiya. Ƙarƙashin zafi mai ɗorewa, dankowar bitumen yana raguwa kuma layin yana fuskantar nakasar filastik ƙarƙashin maimaita cunkoson ababen hawa (Motoci, bas), yana haifar da ɓacin rai na tsayi a cikin hanyoyin mota. Cutar da rutting yana da nau'i-nau'i da yawa: na farko, aminci - lokacin da zurfin rut ya wuce 15 mm, motoci na iya juyewa ko rasa iko a babban gudu; na biyu, gazawar magudanar ruwa - haɗuwar ruwa a cikin ruts yana haɓaka haɗarin hydroplaning a cikin ruwan sama; na uku, tsarin lalacewa - ci gaba da nakasar filastik yana haɓaka gazawar gajiyar tushe. Amsar al'ada ita ce amfani da babban danko ko gyara bitumen (kamar SBS modified bitumen), amma duka zaɓuɓɓukan suna ƙara farashin kayan. Mai sake farfadowa daga FangService, ta hanyar aikin 'gyaran' a cikin tsarin 3-in-1, yana samar da hanyar sadarwa mai haɗin kai mai girma uku bayan farfadowa, yana haɓaka farfadowa na roba na bitumen da aka sake farfadowa zuwa fiye da 85% na bitumen budurwa yayin da yake kiyaye ƙananan yanayin zafi. Wannan yana nufin cewa a ƙarƙashin yanayin zafi na kudu maso gabashin Asiya, juriya na juriya na cakuda kwalta da aka sabunta ba shi da ƙasa da cakuda mai zafi na al'ada, yayin da farashin ya kasance 25-40% ƙasa.
Lalacewar ruwa ita ce matsala ta biyu mafi girma a kan titin kwalta ta Kudu maso Gabashin Asiya, kuma ci gabanta na da sarkakiya. Mataki na daya, shigar ruwa - a ƙarƙashin yanayin ruwan sama mai yawa, ruwan da ke ratsawa yana shiga cikin tsarin pavement ta hanyar ɓacin iska na cakuda kwalta (yawanci 4-6%). Mataki na biyu, ƙaddamar da haɗin yanar gizo - ƙarƙashin kaya, ruwa yana haifar da matsa lamba na hydrostatic a mahaɗar bitumen-aggregate, a hankali yana lalata alaƙar da ke tsakanin fim ɗin bitumen da tarar saman. Mataki na uku, jimlar hasara - bayan gazawar haɗin gwiwa, jimlar barbashi ana ɗaukar su ta hanyar lodin ƙafafu, suna kafa ramuka. Mataki na huɗu, faɗaɗa ramuka - ruwa a cikin ramuka yana ƙara lalata shingen da ke kewaye da shi, yana samar da wuraren da ke cikin damuwa. Mai haɓakawa daga FangService yana ƙarfafa haɗin gwiwa a haɗin haɗin haɗin gwiwar bitumen ta hanyar hanyar sadarwa mai ma'ana guda uku, yana jinkirta farawar lalacewar ruwa. Bayanan da aka auna sun nuna cewa adadin ƙarfin da aka ɗora na cakuda kwalta da aka sabunta (ƙarfin bayan nutsarwar ruwa na kwanaki 7 vs. ƙarfin bushewa) shine 15-20% mafi girma fiye da na al'ada mai gauraya mai zafi.
Kasashen kudu maso gabashin Asiya suna cikin matakai daban-daban na ci gaban sake amfani da RAP. Matakin farko - Singapore da Malaysia: tare da cikakken tsarin ajiya na RAP da kuma sake amfani da ma'aunin fasaha, abun cikin RAP zai iya kaiwa 40-60%. Hukumar Kula da Sufuri ta Kasa (LTA) ta Singapore tana buƙatar duk manyan ayyukan manyan tituna don kimanta yuwuwar zaɓuɓɓukan sake amfani da su. Mataki na biyu - Tailandia, Vietnam, Indonesia: Ana sake amfani da RAP amma grading bai cika ba, kuma abun cikin sake amfani da shi yawanci 20-30%. Mataki na uku - Myanmar, Cambodia, Laos: Sake amfani da RAP kusan sifili ne, tare da manyan cikas kasancewar rashin kayan aikin tantancewa da matakan fasaha. Ba tare da la'akari da wane matakin ƙasa ba, ana iya amfani da mai gyara daga FangService kai tsaye - ruwa mai tattara ruwa, ana jujjuya shi ta tsarin ƙari na yanzu, ba buƙatar kayan aiki na musamman. Ga kasashe masu mataki na uku, wannan yana nufin za su iya tsallake juyin halittar fasahar da kasashen da suka ci gaba suka shiga - daga mai dilution zuwa farfadowar kwayoyin halitta - kuma su rungumi fasahar sabunta kwayoyin halitta ta zamani ta biyu kai tsaye.
A cikin aikin gyaran babbar hanyar Tailandia, sashen injiniya ya kafa sashin gwaji na sabuntawa na RAP na kashi 60% don kwatanta daidai da sashin hada-hadar zafi na al'ada. Mahimmin bayanai: na farko, tushen RAP shine shimfidar kwalta daga shekaru 15 da suka gabata, tare da abun ciki na bitumen kusan 5.5%, kuma maƙallan laushi na bitumen ya tashi daga ainihin 48 ° C zuwa 65 ° C; na biyu, sashi na rejuvenator shine 8% na yawan adadin bitumen RAP, kuma wurin laushi bayan farfadowa ya faɗi baya zuwa 51 ° C (a cikin 3 ° C na bitumen budurwa); na uku, haɗewar zafin jiki ya ragu daga 180 ° C zuwa 130 ° C, rage yawan amfani da man fetur da kusan 30%; na hudu, bayan lokutan damina guda biyu, sashin da aka sabunta yana da 40% ƙarancin ramuka da 30% ƙananan zurfin rut fiye da sashin haɗaɗɗen zafi. Muhimmancin wannan lamari shi ne, ya nuna cewa, a karkashin yanayin yanayi masu zafi na kudu maso gabashin Asiya, farfadowar kwalta ba wai kawai yana da kyau a cikin dakin gwaje-gwaje ba, har ma ya tsaya tsayin daka don gwajin zafi da ruwan sama mai yawa a kan ainihin hanyoyi.
Ga masu siye a ayyukan titin Kudu maso Gabashin Asiya, zaɓar mai gyara kwalta yana buƙatar kulawa ta musamman ga abubuwa masu zuwa. Na farko, high-zazzabi kwanciyar hankali - rejuvenator kanta dole ba wuce kima volatilize ko rage a high yanayin zafi, da kuma filasha batu ya kamata ya zama isasshe high (mai rejuvenator daga FangService yana da filasha batu na 231 ° C, nesa sama da hadawa zafin jiki na 130-140 ° C). Na biyu, juriya na lalata ruwa - ya kamata a buƙaci masu samar da kayayyaki don samar da gwaji na Marshall da aka nutsar da bayanan gwajin daskare-narke. Na uku, dacewa da bitumen da aka gyara na gida - SBS modified bitumen da rubberized bitumen ana amfani da su sosai a cikin ƙasashen kudu maso gabashin Asiya, kuma mai sabuntar dole ne ya dace da waɗannan bitumen da aka gyara. Na hudu, kwanciyar hankali wadata - Ayyukan Kudu maso Gabashin Asiya yawanci suna da tsauraran jadawali, kuma kayan aikin gida da kayan aiki na mai kaya sune mahimman la'akari. Na biyar, goyon bayan fasaha - ikon mai kaya don samar da taimakon ƙira na kansite da jagorar gini. Don ayyukan Kudu maso Gabashin Asiya, ƙimar tallafin fasaha na kansite sau da yawa ya wuce farashin samfur da kanta. View the Asphalt Rejuvenator Supplier
Faɗa mana yanayin aikin ku da buƙatun ku, kuma za mu dace da mafita mai kyau kuma za mu ba da ƙima a cikin sa'o'i 24.
Samu Magana Kyauta3-in-1 kwalta rejuvenator (dumi mix + gyare-gyare + sabuntawa), RAP abun ciki> = 60% (mafi yawan 100%), hadawa zazzabi 120-140 ° C, gajiya rayuwa> = 85% sabon kwalta, m kudin 25-40% kasa. Danko 280mPa·s, filashi 231°C, yawa 0.96 g/cm³, ana samunsa a cikin 25 kg ko 1000 ganguna. Goyan bayan ƙididdiga na musamman akan buƙata kuma samar da rahotannin gwaji, tare da zaɓin ciniki na EXW/FOB/CIF/DDP.
Koyi game da zaɓin wakili na sabunta kwalta da zance →