Kubaluleke Kakhulu ekubekeni iliso kwiBuzulu obuKhonkrithi kunye nokufuma phantsi kweeMeko zeMozulu eziMandundu

Ibaluleke kakhulu kubushushu beConcrete kunye nokuJonga ukufuma phantsi kweeMeko zeMozulu eziMandundu.

Iimeko zemozulu zinempembelelo enkulu ekunyangelweni nasekuqineni kwekhonkrithi. Kwimozulu ebandayo, ikhonkrithi iphilisa ngokucothayo, nto leyo enciphisa amandla ayo. Kwikhonkrithi yemozulu eshushu, iingxaki zingenzeka xa umswakama ususwa kwi-slab yekhonkrithi ngokukhawuleza. Oku kufuneka kubekwe esweni ngokuchanekileyoizinzwa zobushushu kunye nokufumaukuqinisekisa ukuba isamente iphantsi kwenkqubo yonyango echanekileyo.

1. Ukufakwa kwamanzi kwikhonkrithi

Xa iiaggregates ezifana nesanti negrabile zidityaniswe nesamente namanzi, ubushushu buyanyuka kunye nazo. Ubushushu obuveliswa koku kusabela kwe-exothermic bubizwa ngokuba bubushushu behydration. Amandla e-hydration yinto ebangela ukuba ikhonkrithi ibe lukhuni.

Ngexesha lenkqubo ye-hydration, ukuphendulwa kweekhemikhali ezahlukeneyo ngokuqhelekileyo kwenzeka ngaxeshanye. Ezi mpendulo zikhokelela kwi "hydration products". Ezi mveliso ze-hydration zibangela ukuba amasuntswana esanti, igrabile, kunye namanye amacandelo anamathelene kwaye enze iibhloko zekhonkrithi.

2. Izigaba ezihlanu ze-concrete thermal evolution

Ukuguquka kwe-thermal kwikhonkrithi yinkqubo eyinkimbinkimbi enempembelelo ebalulekileyo kumandla ekhonkrithi. Le nkqubo yahlulwe ngokwezigaba ezi-5 ezahlukeneyo. Inqanaba ngalinye linomda wexesha elithile kunye nokuphendula kweekhemikhali, kuxhomekeke kumxube wekhonkrithi.

a. Ukusabela kokuqala.

Inqanaba lokuqala lenkqubo ye-hydration liya kuqala kungekudala emva kokuba amanzi athululelwe kwi-samente. Emva koko, ukunyuka ngokukhawuleza kweqondo lokushisa kulindeleke. Oku kuya kwenzeka ngokukhawuleza kwaye kuphela malunga nemizuzu eyi-15-30, kuxhomekeke kuhlobo lwesamente esetyenzisiweyo.

b. Ixesha lokulala.

Emva kokusabela kokuqala, i-compound iya kugubungela umphezulu we-cement particles, okuya kubangela ukuba isantya esincinci se-hydration. Xa oku kwenzeka, yinqanaba lesibini le-thermal evolution yekhonkrithi, eyaziwa ngokuba yi-induction phase, elixesha lokungena xa ikhonkrithi ingekaqini, kwaye ukuthuthwa kunye nokubekwa kwekhonkrithi kufuneka kugqitywe. ngeli xesha.

c. Ixesha lokukhawulezisa amandla.

Kwinqanaba lesithathu, ikhonkrithi iqala ukufumana amandla kwaye ngaloo ndlela iqiniswe, ijika ibe yinto enzima kunye nobunzima. Ubushushu be-hydration bunyuka ngokuphakathi de bufike kwindawo ephezulu. Iimeko zokushisa kunye nomswakama ngeli xesha zibekwe esweni kusetyenziswa izinzwa zokushisa kunye nomswakama, okuvumela ukuba ikhonkrithi ibeke ngokuthe ngcembe kwaye ifikelele kuluhlu olufanelekileyo. Ubushushu obudityanisiweyo beHengko kunye neemveliso zokufuma zihlangabezana noluhlu olubanzi lweemfuno zabathengi, njengokubonelela ngeentlobo ngeentlobo zedijithali ezikumgangatho ophezulu.iqondo lobushushu kunye nokufuma kovavanyo lwenzwa: Ukuyalela isidluliseli, udinga uphando oluqhagamshekayo. Ngokomzekelo, sebenzisa i-probe ene-high-precision, inzwa ye-humidity ezinzileyo yexesha elide kuluhlu olubanzi lwamaqondo okushisa kunye neendawo; Itekhnoloji yophando olukrelekrele: ukutshintshwa kweprobe ngokulula, ujongano lwedijithali olugqithiselayo, kunye neekhonsepthi ezikrelekrele zokulinganisa.

d. Ukuncipha.

Inqanaba lesine lenzeka ngeli xesha ubushushu be-hydration bufikelela kwiqondo eliphezulu lobushushu. Ubushushu be-hydration buqala ukuhla njengoko i-hydrate eyenzileyo iba ngumaleko okhuselayo wenxalenye engekaphenduli. Uninzi lwamandla lufunyenwe kwaye luhlala luhlala iiyure ezininzi, ukuba azikho iinyanga. Emva kokuba amandla afunwayo afikeleleke, ifomwork iyasuswa kweli nqanaba.

e. Ubume ebuzinzile.

Inkqubo yokufakwa kwamanzi igqityiwe xa inqanaba lesi-5 lifikelelwe. Impendulo ye-thermal kwi-hydration iyacotha, phantse kwizinga elifanayo njengesigaba sokulala. Inqanaba lokugqibela lenkqubo ye-hydration inokuhlala iintsuku, iinyanga, okanye iminyaka de igqitywe kwaye izuze amandla ayo okugqibela.

3. Ukubaluleka kweesweni lobushushu kunye nokufuma

Inqanaba ngalinye lenkqubo ye-hydration linomlinganiselo wokushisa owahlukileyo. Ngoko ke, ukubeka iliso okungaguqukiyo kunye nokukodwa kwinqanaba ngalinye kubalulekile ukugcina ubuncinci beqondo lokushisa elivumelekileyo kuyo yonke inkqubo. Ngelishwa, iimeko zemozulu ezimandundu zenza obu bushushu kube nzima ukubugcina.

Ngokuxhomekeke kwiimeko zemozulu, ubushushu bekhonkrithi bugcinwa phakathi kwe40-90F. Kwimozulu ebandayo, amaqondo obushushu ekhonkrithi agcinwa ngaphezulu kwe 40F. Ngokuchaseneyo, umlinganiselo ophezulu wokushisa kwimozulu eshushu yi-90F.

Amanyathelo athathiweyo ukuxuba, ukubeka kunye nokugcina ikhonkrithi kwimozulu eshushu. Iikontraka kufuneka zihambelane nemida yokushisa ngokubeka iliso. Ngaphandle koko, i-hydration ayiyi kwenzeka ngokufanelekileyo kwaye iingxaki zingavela.

Enye into engalunganga kwimozulu ebandayo kukukhenkceza kwangaphambi kwexesha kwekhonkrithi. Oku kukwanciphisa amandla ekhonkrithi ukuya kuthi ga kwi-50%. Kule meko, kubalulekile ukukhusela ikhonkrithi kwiqhwa.

Ubushushu bekhonkrithi kwimozulu embi kakhulu iyahluka ngokuxhomekeke kwiimeko zangempela zokusingqongileyo. Amanyathelo othintelo anokusetyenziswa ngokuchanekileyo kuphela ukuba kukho idatha echanekileyo yobushushu kunye nokufuma. Idatha engachanekanga kunye nokulibaziseka kokwamkelwa ngenxa yempazamo yomntu kunokukhokelela kwizigqibo ezingalunganga. Ukubeka iliso ngezixhobo smart ezifana HengkoIqondo lobushushu kwimizi-mveliso kunye nezinzwa zokufumainokunceda ngempumelelo abasebenzisi ukuba balinganise idatha echanekileyo.

Usenemibuzo kwaye uthanda ukwazi ngakumbi ngeNkcukacha zokuJonga ukufuma phantsi kweeMeko zeMozulu eziMandundu, Nceda uzive ukhululekile ukuQhagamshelana nathi ngoku.

Kwakhona UnakoSithumele i-imeyileNgqo Ngokulandelayo:ka@hengko.com

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