Umhla wokuThunyelwa: 7, Matshi, 2022
Kule minyaka imbalwa idlulileyo, ishishini lokwakha liye lafumana ukukhula nophuhliso olukhulu. Oku kuye kwabangela ukuba kuphuhliswe imixube yale mihla kunye nezongezelelo. Izongezo kunye nezixube zekhonkrithi zizinto zekhemikhali ezifakwe kwikhonkrithi ukuphucula iimpawu zayo zomzimba kunye neekhemikhali. La macandelo amele uluhlu olubanzi lweemveliso ezineempawu zeekhemikhali ezahlukeneyo.
Umahluko omkhulu phakathi kwe-admixtures kunye ne-additives yizigaba apho izinto zongezwa kwikhonkrithi okanye i-samente. Izongezo zongezwa kwinkqubo yokuvelisa i-samente, ngelixa ukongezwa kwe-admixtures kwenziwa xa kusenziwa imixube yekhonkrithi.
Yintoni izongezo?
Izongezo zongezwa kwisamente ngexesha lokuvelisa ukuphucula iimpawu zayo. Ngokuqhelekileyo, izinto ezisetyenziswayo ekwenziweni kwesamente ziquka i-alumina, ikalika, i-iron oxide, kunye ne-silica. Emva kokuxuba, izinto ezisetyenziselwa ukufudumeza malunga ne-1500 ℃ ukuvumela i-samente ukuba ifezekise iimpawu zayo zokugqibela zeekhemikhali.
Yintoni iAdmixtures?
I-Admixtures yekhonkrithi inokuba ziintlobo ezimbini, i-organic and inorganic compounds. Ii-admixtures ezisebenzayo zezo ziguqula ngaphezu kweempawu zomzimba okanye iikhemikhali zomxube wekhonkrithi. Kukho iintlobo ngeentlobo zemixube ekhoyo yokuguqula imiba eyahlukeneyo yekhonkrithi. Imixube ingahlelwa ngokwe:
Imixube yokunciphisa amanzi
Ezi zikhompawundi ezisebenza njengeplastiki, ezinciphisa umthamo wamanzi womxube wekhonkrithi ukuya kuthi ga kwi-5% ngaphandle kokutshintsha ukuhambelana kwayo. Imixube yokunciphisa amanzi idla ngokuba yipolycyclic derivatives okanye iphosphates. Xa zongezwa, ezi zidibaniso zonyusa amandla oxinzelelo lomxube wekhonkrithi ngokwenza iplastiki eninzi. Olu hlobo lwe-admixture lusetyenziswa ngokuqhelekileyo kunye nomgangatho kunye nekhonkrithi yendlela.
Izinciphisi zaManzi eziPhakamileyo
Ezi zi-superplasticizers, ubukhulu becala yimixube yekhonkrithi yepolymer eyehlisa umthamo wamanzi ukuya kutsho kuma-40%. Ngala ma-admixtures, i-porosity yomxube iyancipha, ngoko ke iphucula amandla ayo kunye nokuqina. Le mixube idla ngokusetyenziselwa ukuzihlanganisela kunye nokutshizwa ikhonkrithi.
Ukukhawulezisa imixube
Ikhonkrithi idla ngokuthatha ixesha ukutshintsha ukusuka kwiplastiki ukuya kwimeko eqinileyo. Iipolyethylene glycols, iikloridi, ii-nitrate, kunye ne-metal fluorides zidla ngokusetyenziswa ukwenza ezi ntlobo zemixube. Ezi zinto zinokongezwa kumxube wekhonkrithi ukunciphisa ixesha elithathayo ukudibanisa kunye nokuseta.
Ii-Admixtures zokungenisa umoya
Le mixube isetyenziselwa ukwenza imixube yekhonkrithi efakwe emoyeni. Benza ukudityaniswa kwamaqamza omoya kumxube wekhonkrithi kungoko kuphuculwe iipropati ezinjengokuqina kunye nokomelela ngokuguqula ukunyibilika komkhenkce kwesamente.
Ukurhoxiswa kweMixube
Ngokungafaniyo ne-admixtures ekhawulezayo eyenza mfutshane ukudibanisa kunye nokuseta, ukubuyiswa kwe-admixtures kwandisa ixesha lekhonkrithi elithathayo ukuseta. Imixube enjalo ayitshintshi umlinganiselo wesamente yamanzi kodwa isebenzisa ii-oxide zetsimbi kunye neeswekile ukuthintela ngokwasemzimbeni inkqubo yokubopha.
Izongezo zekhonkrithi kunye nemixube okwangoku lolona didi lusebenza kakhulu kwimveliso yeekhemikhali zokwakha. E-Jufu Chemtech, sisebenza kunye neenkampani ze-admixture zasekhaya kunye nezamazwe ngamazwe ukuqinisekisa ukuba abathengi bethu bafumana imveliso engcono kakhulu kwimisebenzi yabo yokwakha. Ndwendwela iwebhusayithi yethu ukuze ujonge kwaye uthenge ezona zongezo zekonkrithi ezisebenzayo nezithembekileyo kunye nemixube ekhonkrithi kwihlabathi liphela.(https://www.jufuchemtech.com/)
Ixesha lokuposa: Mar-07-2022
