Umhla wokuPoswa:15, Jan,2024
1.Ukusebenza kwisamente:
Ukubunjwa kwe-cement kunye nezixhobo ze-cementitious kuyinkimbinkimbi kwaye iyatshintsha.Ngokombono we-adsorption-dispersion mechanism, akunakwenzeka ukufumana i-arhente yokunciphisa amanzi efanelekileyo kuyo yonke into.Nangonapolycarboxylate i-arhente yokunciphisa amanzi inokuguquguquka okubanzi kunochungechunge lwe-naphthalene, isenokuthi ibe nokuguquguquka okungahambi kakuhle kwezinye iisamente.Oku kuziqhelanisa ikakhulu kubonakaliswa: kuncitshiswe izinga lokucuthwa kwamanzi kunye nokwanda kwelahleko yokuthopha.Nokuba yisamente enye, isiphumo se-arhente yokunciphisa amanzi siya kwahluka xa ibhola igalelwe kwi fineness eyahlukileyo.
Isenzeko:Isikhululo sokuxuba sisebenzisa i-samente ethile ye-P-042.5R kwindawo yendawo ukubonelela nge-C50 ikhonkrithi kwindawo yokwakha.Isebenzisa apolycarboxylatesiplasticizeri-arhente yokunciphisa amanzi.Xa usenza umlinganiselo womxube wekhonkrithi, kufunyaniswe ukuba ubungakanani be-agent yokunciphisa amanzi esetyenziswe kwi-samente iyinto engaphezulu kancinane kunezinye iisamente, kodwa ngexesha lokuxuba kwangempela, ukudilika komxube wekhonkrithi wefektri kwakulinganiswa ngokubonakalayo ukuba yi-21Omm.Xa ndaya kwindawo ekwakusakhiwa kuyo ukuze ndothule ilori yempompo yekonkile, ndafumanisa ukuba ilori yayingakwazi ukothula ikhonkile.Ndazisa umzi-mveliso ukuba uthumele umphanda.Emva kokuba i-arhente yokunciphisa amanzi yongezwa kwaye ixutywe, i-slump ebonakalayo yayiyi-160mm, eyona nto idibene neemfuno zokupompa.Noko ke, ngexesha lothulwa, kwabonakala ngathi ayinakothulwa.Ilori yekonkile yabuyiselwa ngoko nangoko kumzi-mveliso, kwaza kongezelelwa isixa esikhulu samanzi nentwana yokunciphisa izinto.I-arhente yolwelo ayizange ikhutshwe kwaye iphantse yaqina kwilori yomxube.
Uhlalutyo lwesizathu:Asizange sinyanzelise ukwenza iimvavanyo zokuziqhelanisa nee-admixtures kwibhetshi nganye yesamente ngaphambi kokuvula.
Uthintelo:Yenza uvavanyo lokuhlanganisa kunye nomlinganiselo womxube wokwakha kwibhetshi nganye yesamente phambi kokuvula.Khetha imixube efanelekileyo."I-Gangue" njengomxube wesamente ayinakukwazi ukuziqhelanisa nepheolycarboxylate siplasticizeriiarhente zokunciphisa amanzi, ngoko kuphephe ukuyisebenzisa.
2.Uvakalelo kusetyenziso lwamanzi
Ngenxa yokusetyenziswa kwepolycarboxylate i-agent yokunciphisa amanzi, ukusetyenziswa kwamanzi kwekhonkrithi kuyancipha kakhulu.Ukusetyenziswa kwamanzi kwikhonkrithi enye ininzi i-130-165kg;umlinganiselo wamanzi-samente yi-0.3-0.4, okanye ngaphantsi kwe-0.3.Kwimeko yokusetyenziswa kwamanzi aphantsi, ukuguquguquka kokongezwa kwamanzi kunokubangela utshintsho olukhulu ekuwohlokeni, okubangela umxube wekhonkrithi ukuba unyuke ngequbuliso ekuthotyweni kunye nokopha.
Isenzeko:Isikhululo sokuxuba sisebenzisa i-P-032.5R yesamente evela kumzi-mveliso othile wesamente ukulungisa ikhonkrithi yeC30.Ikhontrakthi ifuna ukuba ithontsi kwindawo yokwakha ibe yi-150mm:t30mm.Xa ikhonkrithi ishiya umzi-mveliso, ukuthotywa okulinganiselweyo yi-180mm.Emva kokuthuthwa kwisiza sokwakha, ikhonkrithi ilinganiswa kwindawo yokwakha.Ukudilika bekuyi-21Omm, kwaye iilori ezimbini zekhonkrithi zabuyiswa zilandelelana.Xa kubuyiselwe kumzi-mveliso, kwaqinisekiswa ukuba ukuwohloka kwakusengama-21Omm, kwaye kukho ukopha kunye nokudumba.
Isizathu:Le samente inokulungelelaniswa kakuhle kule arhente yokunciphisa amanzi, kwaye umthamo we-arhente yokunciphisa amanzi mkhulu kancinane.Ixesha lokuxuba alanelanga, kwaye ukuchithwa kwekhonkrithi xa ushiya umatshini akukona ukuchithwa okwenyaniso ngenxa yexesha elifutshane lokuxuba.
Uthintelo:Kwisamente enovakalelo kumthamo we polycarboxylatesiplasticizeri-admixtures yokunciphisa amanzi, i-dosage of admixtures kufuneka ifaneleke kwaye ukuchaneka kokulinganisa kufuneka kube phezulu.Yandisa ngokufanelekileyo ixesha lokuxuba.Nokuba kunye ne-twin-shaft enyanzelekileyo yokuxuba, ixesha lokuxuba akufanele libe ngaphantsi kwemizuzwana ye-40, ngokukhethekileyo ngaphezu kwemizuzwana engama-60.
Ixesha lokuposa: Jan-15-2024