Kutshanje ngenxa yophuhliso olukhawulezileyo lobunjineli beendlela ezinkulu, ubuchwepheshe bezakhiwo zekhonkrithi ye-asphalt buye baphucuka ngokukhawuleza kwaye bufikelele kwinani elikhulu leempumelelo zobugcisa ezivuthiweyo nezibalaseleyo.
Okwangoku, ikhonkrithi ye-asphalt isetyenziswa kakhulu kwicandelo lokwakhiwa kweendlela ezinkulu, nto leyo egxininisa indawo yayo ebalulekileyo kwiiprojekthi zokwakha. Nangona kunjalo, nangona sibona impumelelo eyenziweyo, kufuneka siqaphele ukuba iingxaki zokuguqulwa kunye nomonakalo kwindlela yekhonkrithi ye-asphalt ziya zisiba mandundu ngakumbi.
Iimingxuma ezinkulu kunye nokuguquguquka kwendlela kunokuba nefuthe elikhulu kukhuseleko lokuqhuba.Intambo eqoshiweyo yefayibha yebasaltluhlobo olutsha lwezinto zefayibha, ezineempawu zalo ezikhethekileyo zoomatshini, uzinzo oluhle, kunye nomlinganiselo wokusebenza obiza kakhulu, nto leyo eyenza ukuba ibe zizinto ezibalaseleyo zokuqinisa ikhonkrithi.
Ukusebenza kweumsonto oqoshiweyo wefayibha yebasalt
Intambo echongiweyo yefayibha yeBasalt yifayibha yeminerali engaphiliyo enobude obungaphantsi kwe-50mm, esikwe kwi-substrate yefayibha yebasalt ehambelanayo kwaye inokusasazwa ngokulinganayo kwikhonkrithi.
Intambo eqoshiweyo yefayibha yebasaltzineempawu ezintle kakhulu ezifana namandla aphezulu okutsalwa kwe-axial kunye ne-modulus ephezulu, enamandla okutsalwa kwe-2250-2550MPa kunye ne-modulus elastiki engaphezulu kwe-78 GPa; I-basalt emfutshane inokumelana okubalaseleyo kobushushu obuphezulu, okuvumela ukuba isebenze ngokuqhubekayo kuluhlu lwe--269 ukuya kwi-650 degrees Celsius; Inokumelana okuphezulu kokutshalwa kunye nozinzo lweekhemikhali kwi-media ebolayo (izisombululo ze-asidi, i-alkali, ityuwa), kwaye inokugcina ukumelana okuphezulu kokutshalwa kwe-alkaline kwizisombululo ze-alkaline ezigcweleyo kunye nesamente kunye nezinye i-media ze-alkaline. Izinga lokugcina amandla okuqhekeka kwentambo enye likhulu kune-75%; I-strand echongiweyo ye-basalt fiber ingahambelana nee-adhesives ezingaphiliyo, kunye nezinga lokufunxa umswakama elingaphantsi kwe-1% kunye namandla okufunxa angatshintshiyo ngokuhamba kwexesha, nto leyo ebonisa uzinzo lwazo lwezinto, ubomi obude, kunye nokuhambelana nokusingqongileyo ngexesha lokusetyenziswa; Ukongeza, i-strand echongiweyo ye-basalt fiber ikwanayo nokusebenza kakuhle kokugquma, ukuhluzwa kobushushu obuphezulu, ukumelana nemitha, kunye nokuvuleka okuhle kwamaza. Itheyibhile 1 ibonisa izalathisi zokusebenza zobugcisa ze-strand echongiweyo ye-basalt fiber.
Uhlalutyo lokusetyenziswa kwentambo eqoshiweyo yefayibha ye-basalt kwindlela yekhonkrithi ye-asphalt
Intambo eqoshiweyo yefayibha yebasaltIkhonkrithi ye-asphalt yenziwa ngokufaka umsonto osikiweyo we-basalt fiber ngomlinganiselo ofanelekileyo kwizinto zekhonkrithi ye-asphalt kwiindawo zendlela, kwaye uzixube phantsi komlinganiselo oqinileyo wokuxuba, ubushushu, ukufuma, ixesha lokuxuba, kunye nezinye iimeko.
Njengoko kwaziwa kakuhle, ukongeza kwiifayibha zebasalt, izinto zefayibha ezifana neefayibha zepolyester, iifayibha zomthi, kunye neefayibha zoboya beminerali zonke zingasetyenziswa njengezinto zokuqinisa ekuqiniseni ikhonkrithi yeasphalt. Nangona kunjalo, ukusetyenziswa kwezi fayibha iminyaka emininzi kubonisa ukuba kukho iingxaki ezithile xa zisetyenziswa njengezinto zokuqinisa kwikhonkrithi yeasphalt, ezifana nokusebenza okubuthathaka kokulwa nokwaluphala, isiphumo sokuqinisa esibuthathaka, kunye nobungozi kwimpilo yabantu.
Ukuvela kwentambo eqoshiweyo yefayibha ye-basalt kuye kwavala umsantsa kwizinto kunye neendlela, kwasombulula ngempumelelo iingxaki ezikhoyo kwindlela ekhoyo yekhonkrithi ye-asphalt kwaye kwadlala indima enkulu ekuyikhuthazeni. Indima yayo kwindlela yokusebenza kwekhonkrithi ye-asphalt ibonakala kwezi zinto zilandelayo:
(1) Intambo enqunqiweyo yefayibha yebasalt, ngenxa yokuba ayifunxwanga ngamanzi amaninzi, ingongezwa kwikhonkrithi yeasphalt ukwandisa ubukhulu bendlela yeasphalt, nto leyo eyenza ukuba ingaqhekeki kwaye ingazinzi kwindlela ngenxa yokufunxwa kwamanzi nokwandiswa kwawo.
(2) Intambo echongiweyo yefayibha yeBasalt ayinakusebenzisa nje kuphela imodulus yayo ephezulu kunye namandla okutsalwa, njengeefayibha zentsimbi, ukuthintela ukwanda okuqhubekayo kweentanda emva kokuba zivele, kodwa ikwathintela neemeko apho iifayibha zentsimbi zinobunzima bokuqubana ngexesha lokuxuba, nto leyo engafanelekanga ekupompeni, kwaye inkqubo yokwakha iyinkimbinkimbi.
(3) I-basalt fiber eqoshiweyo yi-nitric acid fiber eqhelekileyo, ehambelana kakuhle. Ngenxa yokuba umphezulu wayo uthambile, inokufunxa i-asphalt, ukuze i-basalt fiber isasazwe ngokulinganayo kwikhonkrithi, yenze umaleko odibeneyo oqinileyo, ukuze kuphuculwe ukuxhathisa ukuguga kunye nokuqina kwendlela yekhonkrithi ye-asphalt.
(4) Intambo eqoshiweyo yefayibha yeBasalt inokumelana okuhle kakhulu nobushushu kunye noxinzelelo. Ubushushu bayo obusebenzayo buphakathi kwama-270 ukuya kuma-651 degrees Celsius, kwaye inokugcina uzinzo kwiindawo ezinobushushu obuphezulu. Ingathintela nokutyibilika kwezinto zeminerali kwikhonkrithi, iphucule uzinzo lwayo, kwaye iphucule ngempumelelo ukumelana nobushushu obuphezulu kuxinzelelo lwendlela yekhonkrithi ye-asphalt.
Ukongeza, imicu eqoshiweyo yefayibha yebasalt ikwanokumelana okuhle kakhulu nobushushu obuphantsi, ingakumbi ukuphucula ukumelana nokuqhekeka kobushushu obuphantsi kwendlela yekhonkrithi yeasphalt.
Ukongeza intambo eqoshiweyo yefayibha yebasalt kwikhonkrithi yeasphalt kunokuphucula ukumelana nempembelelo, ukumelana nokuguguleka, kunye neempawu zoomatshini zendlela yesamente yeasphalt. Ngokukodwa, intambo eqoshiweyo yefayibha yebasalt idlala indima ebalulekileyo kwindlela yesamente yeasphalt, efana nokuxhathisa ukuqhekeka, ukungangeni kwamanzi, ukuqina, ukumelana nempembelelo, amandla okutsalwa, kunye nobuhle.
Iindlela zokwakha kunye namanyathelo okhuselekoumsonto oqoshiweyo wefayibha yebasaltikhonkrithi ye-asphalt
(1) Ubushushu bokwakha
Ubushushu bokwakha bekhonkrithi ye-asphalt eqoshiweyo ye-basalt fiber akufuneki bube phantsi kakhulu, kuba i-basalt fiber eqoshiweyo yekhonkrithi iya kwandisa i-viscosity ye-asphalt. Ke ngoko, ubushushu bokwakha bekhonkrithi ye-asphalt ye-basalt emfutshane kufuneka bube phezulu kunobo bekhonkrithi eqhelekileyo ye-asphalt, kungenjalo kuya kuba lula ukubangela ukuxubana okungalinganiyo.
(2) Ulawulo lomgangatho wokwakha
Ulawulo lomgangatho wokwakhiwa kwekhonkrithi ye-asphalt eqoshiweyo ye-basalt fiber kufuneka luqwalasele ulawulo lomgangatho wenkqubo yokuhlola, yokulinganisa, kunye nokuxuba izinto zecandelo ngalinye kwikhonkrithi ye-basalt fiber eqoshiweyo.
Kwisakhiwo sokwenyani, ubungakanani obahlukeneyo be-basalt enqunyulweyo kufuneka bukhethwe ngaphakathi koluhlu olufanelekileyo ngokweemfuno zobunjineli. Ngenxa yokuba imicu enqunyulweyo ye-basalt fiber ayisebenzi nezinye izinto zekhonkrithi kunye nomxube, umxholo wefayibha awuyi kutshintsha umlinganiselo womxube wekhonkrithi yokuqala.
Ngexesha lokwakha, umgangatho wezixhobo ezahlukeneyo kwikhonkrithi eqinisiweyo ye-basalt fiber eqoshiweyo kufuneka ubalwe kwaye umiselwe ngokusekelwe kumlinganiselo womxube wokwakha kunye nobungakanani bokuxuba kanye. U-He Junyong, uTian Chengyu, nabanye bafunde umlinganiselo wokuxuba ofanelekileyo wekhonkrithi eqinisiweyo ye-basalt fiber ngokusebenzisa iindlela zovavanyo zoyilo oluhambelanayo. Izinto ezintlanu, kuquka umxholo wefayibha, umlinganiselo wesamente yamanzi, umxholo wothuthu oluphaphazelayo, umlinganiselo wesanti, kunye nokusetyenziswa kwamanzi kwiyunithi, zikhethwe njengezinto eziphambili kuvavanyo.
Itheyibhile yesi-2 ibonisa umlinganiselo ofanelekileyo womxube wekhonkrithi eqinisiweyo ye-basalt fiber efunyenwe ngovavanyo.
Uvavanyo lubonise ukuba xa umlinganiselo womxholo wentambo echongiweyo ye-basalt fiber uphezulu, kokukhona isiphumo sokumelana nokuqhekeka kwekhonkrithi singcono, kwi-1.2kg/m³ Ngaphakathi koluhlu oluthile, amandla okucinezela ekhonkrithi ayanda ngokunyuka komxholo wentambo echongiweyo ye-basalt fiber, emva koko anciphe aze anyuke ngendlela egobileyo.
(3) Ulandelelwano kunye nendlela yokondla
Kwinkqubo yokuxubaumsonto oqoshiweyo wefayibha yebasaltikhonkrithi ye-asphalt, ulandelelwano lokutya lwentambo eqoshiweyo ye-basalt fiber kufuneka luqwalaselwe. Xa usebenzisa, yongeza intambo eqoshiweyo ye-basalt fiber kunye nee-aggregates ezifana nesanti kunye nelitye. Kungcono ukongeza isanti kunye nelitye ngaxeshanye. Yongeza intambo eqoshiweyo ye-basalt fiber esantini, emva koko yongeza i-asphalt kunye nomxube omanzi uze uxube.
Indlela yokongezwa kwefayibha inokwahlulwahlulwa ibe kukudibanisa ngesandla kunye nokongezwa ngokuzenzekelayo. Ukongezwa okwenziweyo kubhekisa ekufakweni ngesandla kwentambo enqunqiweyo yefayibha ye-basalt eye yalinganiswa emva kokuba kongezwe ii-aggregates ezishushu kwitanki yokuxuba. Nangona kunjalo, iingxaki zayo kukusebenza ngamandla aphezulu, ukufana okuphantsi kokuxuba, kunye nesidingo sokwandisa ixesha lokuxuba ngokwemeko yokwenyani ukuqinisekisa ukuba iifayibha zisasazwa ngokulinganayo kwikhonkrithi ye-asphalt.
Ukondla ngokuzenzekelayo kubhekisa ekusebenziseni i-basalt fiber feeder ukulinganisa ngokuzenzekelayo ubungakanani bezinto eziza kongezwa kwaye zifakwe kwimbiza yokuxuba kunye ne-hot aggregate yomxube. I-fiber feeder ineenzuzo ezifana nokulinganisa ngokuzenzekelayo, ukutyumza ngaphambi kokuba kutyumzwe, kunye nendlela yokuhambisa umoya, kwaye inemisebenzi elula, ekhawulezayo, nechanekileyo yokongeza i-fiber. Kwizicelo ezisebenzayo, iindlela ezifanelekileyo kufuneka zikhethwe ngokusekelwe kwimeko yokwakhiwa kwayo.
(4) Amanyathelo okuthintela ukuhamba ngeenyawo
Okokuqala, kufuneka kuqwalaselwe ukucoceka komphezulu wepaving; Emva koko fudumeza ipleyiti ye-ayina ye-paver ukuya kwi-120 degrees Celsius, ngelixa unika ingqalelo kwisantya sepaving, uyilawula malunga ne-3 ukuya kwi-4 yeemitha ngomzuzu; I-coefficient yokukhulula kufuneka imiselwe ngokusekelwe kuvavanyo lokwenyani lweprojekthi; Ubushushu bepaving kufuneka bugcinwe kwi-160 degrees Celsius.
(5) Ukwakha nokunyanga
Ikhonkrithi exutywe neumsonto oqoshiweyo wefayibha yebasaltakufuneki kubekho mfuneko ikhethekileyo ngexesha lokubumba, ngaphandle kokuqinisekisa ukuxinana ngokupheleleyo kwekhonkrithi ye-asphalt. Kufuneka ixinwe kangangoko kunokwenzeka phantsi kweemeko zobushushu obuphezulu.
Imizekelo yokusetyenziswaumsonto oqoshiweyo wefayibha yebasaltkwindlela yesamente ye-asphalt
Umgca woQhagamshelo lweHaining Interchange weJiashao Expressway (onesakhiwo sendlela esizinzisiweyo sesamente engama-20cm kunye nekhonkrithi ye-asphalt engu-+6cm (AC-20C) kunye nekhonkrithi ye-asphalt engu-+4cm (AC-16C)) kunye neNdlela yePhondo engu-08 zivunyiwe yiHaining Municipal Science and Technology Bureau. Ukuze kuhlolwe iindlela zesayensi nezisebenzayo zokuphucula ukumelana kwendlela ne-rutting, ukuqinisekisa ukhuseleko kunye nokuguda kwendlela, kunye nokuzama ukunyanga izifo ze-rutting ngendlela elula nelula, ngexesha elifutshane lokwakha kunye neendleko zokulungisa eziphantsi, uvavanyo lwe-Cering lwenziwe kusetyenziswa ikhonkrithi ye-asphalt eguquliweyo ene-basalt fiber cut strand.
Ngokwembono yempembelelo yonyango, ukongezwa kwentambo eqoshiweyo yefayibha ye-basalt kuphucula kakhulu uzinzo oluphezulu lwendlela yekhonkrithi ye-asphalt, kwandisa ukuqina kwendlela, kwandisa ubomi bayo benkonzo, kwaye kunciphisa ukwenzeka kweendlela zesibini, kubonelela ngesiqinisekiso esinamandla sokhuseleko lokuqhuba.
Isiphelo
Intambo eqoshiweyo yefayibha yebasalt, ngenxa yeempawu zazo ezikhethekileyo zoomatshini, uzinzo oluhle, kunye nexabiso eliphantsi, zenza zibe zizinto ezibalaseleyo zokuqinisa ikhonkrithi. Amathuba okusetyenziswa kwekhonkrithi ye-asphalt eqinisiweyo ye-basalt fiber eqoshiweyo abanzi kakhulu. Zombini iingenelo zoqoqosho kunye nezentlalo ziya kufezekisa imeko eyonwabisayo, kwaye iya kuba yenye yezona zinto ziphambili zokwakha kwicandelo lokwakhiwa kwendlela kwixesha elizayo.
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Ixesha leposi: Matshi-13-2024