Umhla wokuThunyelwa: 01, Nov, 2021

Isikhululo sokuxutywa kwekhonkrithi ekulungisweni kwekhonkrithi, asikwazi ukwenza ngaphandle kwezinto ezintathu, i-aggregate, powder kunye ne-liquid material.Isithako esiphambili kwizinto ezingamanzi ngamanzi kunye nezongezelelo, aziyiyo inxalenye yokuzikhethela, ukusuka kwiyunithi yazo yokulinganisa ezimeleyo inokubonwa, le nxalenye ephambili yeemfuno zokudibanisa ikhonkrithi.Kwaye ukusetyenziswa kwe-arhente yokunciphisa amanzi kwi-admixture kwindawo ebalulekileyo, ngoko yintoni eyona nto i-agent yokunciphisa amanzi? Ziziphi iimpawu?

Okokuqala, makhe sithethe malunga ne-arhente yokunciphisa amanzi ekhonkrithi esetyenziswa ngokuqhelekileyo:si-odiumni-aphthalenesulfonateiarhente yokunciphisa amanzi esebenza kakuhle,polycarboxylic acidi-arhente yokunciphisa amanzi ngobuchule obuphezulu kunyei-agent yokunciphisa amanzi e-lignin.

Isodiumni-aphthalenesulfonate iarhente yokunciphisa amanzi esebenzayo: olu hlobo lwe-arhente yokunciphisa amanzi yi-chemical synthesis ye-non-air yodidi olusebenzayo lokunciphisa amanzi, ukwenza amasuntswana e-samente anefuthe elinamandla lokuchithachitha, kuqwalaselo lwekhonkrithi ehambayo, kunye nokuqina kwangaphambili, iimfuno eziphezulu zamandla ekhonkrithi e-cast-in-situ kunye ukwakhiwa kwangaphambili, ukusetyenziswa kwe-arhente yokunciphisa amanzi kunomphumo omhle kakhulu.Unokuphucula umsebenzi wecandelo ngalinye lekhonkrithi ngokubanzi.Ikhonkrithi exutywe ngolu hlobo lwe-arhente yokunciphisa amanzi. isetyenziswa ngokubanzi kwiiBridges, iiDAMS, izibuko kunye needokhi, iitonela, amandla ombane, ugcino lwamanzi kunye neeprojekthi zolwakhiwo lwasekuhlaleni kunye namacandelo olondolozo lwendalo.

Polycarboxylicsiplasticizer Umgangatho ophezulu wokunciphisa amanzi: olu luhlobo olutsha lwe-arhente yokunciphisa amanzi, eyaziwa ngokuba "yi-admixture" yekhonkrithi esebenzayo ephezulu, inokuxutywa kunye neentlobo ezahlukeneyo zokuxutywa kwi-admixtures esebenzayo, njenge-arhente yokumpompa, i-arhente yamandla yangaphambili, i-anti-seepage agent,coagulant.Izinga lokucutha amanzi nge-1%polycarboxylic acid superplasticizeryi-35%, kwaye amandla okuqala anyuka ngaphezu kwama-50%.

Lignosulphonate isetyenziswe njenge-concrete yokunciphisa amanzi kwi-0.2-0.3%, inokunciphisa ukusetyenziswa kwamanzi okuxutywa kwekhonkrithi nge-10% -12%, ukunciphisa umlinganiselo wesamente yamanzi, ukonga isamente malunga ne-10%, ukuphucula isakhono somsebenzi wekhonkrithi, ukuguquguquka kunye nokumelana nokungena, ukuphucula amandla ekhonkrithi kunye Ukubumbana, kunye nesiphumo samandla sakwangoko, finyeza ixesha lokumisela, ukuphucula amandla oxinzelelo.Ngaxeshanye nciphisa ilahleko yokuwohloka kwekhonkrithi.

Luhlobo luni lomxube, ngokweemfuno zobunjineli bomthengi ekufuneka zenziwe, ngokuqhelekileyo sithi isikhululo sokuxuba ikhonkrithi yobunjineli sinokuguquguquka okungcono, ikakhulu ngenxa yokuba ukhetho lwe-admixture lusondele kakhulu kwiprojekthi, yiyo loo nto kukho iiprojekthi ezinkulu eziya kuthi. isatyala imali kulwakhiwo lwesikhululo sokuxuba esikhulu kwaye ungathengi ngokuthe ngqo ikhonkrithi yeshishini.Umzekelo, iplanti ekhoyo yokuxuba umzila kaloliwe ohamba ngesantya esiphezulu uyilelwe ngokukodwa iiprojekthi zikaloliwe ezihamba ngesantya esiphezulu.