Ubusika lixesha elinzima kakhulu lokwakhiwa kwekhonkrithi. Ukuba iqondo lokushisa liphantsi kakhulu, kungekhona nje ukuba isantya sokwakha siya kuthotywa, kodwa i-hydration eqhelekileyo yekhonkrithi nayo iya kuchaphazeleka, eya kuthi icothise ukukhula kwamandla amacandelo, okusongela ngokuthe ngqo umgangatho weprojekthi kunye nenkqubela phambili yokwakha. Indlela yokoyisa le nto ingathandekiyo ibe ngumngeni omkhulu ojongene nolwakhiwo lobunjineli okwangoku.
Ngenxa yeshedyuli yokwakha eqinile kunye nemisebenzi enzima, ubusika sele buza kungena. Ukuphendula kwiimpawu zemozulu yendawo, ukuze kuqinisekiswe umgangatho kunye nenkqubela phambili yeprojekthi, ezinye iiyunithi zayalela iijenereyitha ezininzi ze-Nobis zokunyanga umphunga ukuba zilahle indlela yokunyanga yokutshiza yokutshiza kwaye zamkele indlela yokunyanga umphunga ukuze kufezekiswe ulawulo oluzenzekelayo. ukunyanga umphunga ngekhonkrithi.
Isizathu silula. Nangona indlela yendabuko isebenzayo, ukuthembela kuphela ekugcinweni kobushushu kwi-concrete ye-concrete reaction reaction emva kokugquma ayikwazi ukuqinisekisa ukulingana kweqondo lokushisa kunye nokuzinza. Amandla ekhonkrithi akhula kancinci kwaye umgangatho weprojekthi uxhomekeke kwiingxaki. Nangona kunjalo, kuyafaneleka ukusebenzisa ukujikeleza kwe-steam ukugcina ibhalansi kunye nokuzinza kweqondo lokushisa kunye nomswakama, kunye nokusebenzisa iimpawu zayo zokugcinwa okufanayo ukufezekisa ulawulo olusebenzayo lokugcinwa komgangatho.
Itekhnoloji yezempilo yomphunga
Umda wesicelo: Xa ubushushu bangaphandle bungaphezulu kwe-5 ℃, kodwa ngenxa yexesha elide lendlela yokunyanga yendalo yokutshiza amanzi, ukuze kuphuculwe izinga lokusetyenziswa kwezinto eziguqukayo ezifana nokubumba kunye neziseko kunye nokuphucula ukusebenza kakuhle kwemveliso, indlela yokunyanga umphunga kufuneka isetyenziswe ukuphelisa impembelelo yezinto ezahlukeneyo ezimbi zokusingqongileyo .
Uyilo lwemibhobho yomphunga: Ukwakhiwa kwekhonkrithi kwenziwa ekwindla. Ikhonkrithi ngokwayo ilahlekelwa ngumswakama ngokukhawuleza, ngakumbi emini. Kucetyiswa ukuthulula kunye nokugubungela kumacandelo; yondlala imibhobho yomphunga esele ilungisiwe phambi kokuba igqunywe, uze uyibeke kwelinye icala leshedi yokunyanga umphunga emva kokuba igqunywe ngokupheleleyo. Vula umphunga kukhathalelo lwempilo.
【Ngaphambi kokulinywa】
Ngaphantsi kweemeko eziqhelekileyo, ixesha lokunyanga kwangaphambili lokunyangwa kwe-concrete ye-concrete yi-2 iiyure, eli lixesha lexesha ukusuka ekugqityweni kwekhonkrithi ukuya ekuqaleni kwe-steam. Ekwindla, ngenxa yokuba ikhonkrithi ngokwayo ilahlekelwa ngamanzi ngokukhawuleza, iyure eli-1 emva kokuba i-pre-curing period iqala, i-generator ye-steam isetyenziselwa ukuthumela i-steam kwi-steam-curing shed kathathu, ixesha ngalinye kwimizuzu eyi-10.
【Inqanaba lobushushu elithe rhoqo】
Ixesha eliqhelekileyo lobushushu lelona xesha liphambili lokukhula kwamandla ekhonkrithi. Ngokwesiqhelo, ezona parameters zobugcisa zexesha elingaguqukiyo lobushushu zezi: ubushushu obungaguqukiyo (60℃~65℃) kunye nexesha lobushushu elingaguqukiyo elingaphezu kweeyure ezingama-36.
【Inqanaba lokupholisa】Ngexesha lokupholisa, ngenxa yokunyuka ngokukhawuleza kwamanzi ngaphakathi kwekhonkrithi, kunye nokunciphisa umthamo wecandelo kunye nesizukulwana soxinzelelo lwe-tensile, ukuba isantya sokupholisa sikhawuleza kakhulu, amandla ekhonkrithi aya kuncitshiswa, kwaye neengozi ezisemgangathweni ziya kwenzeka; kwangaxeshanye, ngeli nqanaba, ukuba ilahleko yamanzi Ngokugqithisileyo iya kuchaphazela ukuhanjiswa kwasemva kwexesha kunye nokukhula kwamandla kamva. Ngoko ke, ngexesha lokupholisa, izinga lokupholisa kufuneka lilawulwe ukuya ku-≤3 ° C / h, kwaye i-shed ayinakuphakanyiswa kude kube umehluko weqondo lokushisa phakathi kwangaphakathi nangaphandle kweshedi ngu-≤5 ° C. I-formwork inokususwa kuphela kwiiyure ezi-6 emva kokuba ishedi iphakanyisiwe.
Emva kokuba amacandelo evuliwe kwaye i-formwork isusiwe, amacandelo asafuna ukutshizwa ngamanzi ukuze agcinwe. Ixesha lokugcinwa yi-≥3 iintsuku kunye ne-≥4 amaxesha ngosuku. Ukwakhiwa kwangaphambili ebusika akukwazi ukungakhathali. Emva kokuba ikhonkrithi igalelwe, inkqubo yokugcina ebaluleke ngakumbi kufuneka iqhutywe ukulawula ubushushu kunye nomswakama wendawo yangaphandle yebhokisi lebhokisi ukuphepha iingozi ezifihliweyo zekhwalithi ezibangelwa ukushisa okuphantsi kakhulu.
Iintsuku zokuqala ezi-3 emva kokugqitywa kokuthululwa kwekhonkrithi lixesha elibalulekileyo lokuphucula amandla amacandelo. Iindlela zokunyanga eziqhelekileyo zithatha iintsuku ezisi-7 ukufikelela kwiimfuno zamandla okuqina. Ngoku indlela yokunyanga umphunga isetyenziselwa ukunyanga. Amandla akhula ngokukhawuleza kunonyango oluqhelekileyo kwaye ukukhula kuzinzile. Iqinisekisa ukuba ikhonkrithi ifikelela kumandla okususwa kwe-formwork kwangethuba, ifinyeza kwaye igcine ixesha lomjikelo wokwakha, iqinisekisa ixesha lokwakha, kwaye ivumela Ukwakhiwa kweBhulorho yoMlambo i-Jiasa ikhawuleza kwakhona.
Ixesha lokuposa: Nov-09-2023
