Izongezo zeConcrete eziKhala | Ii-Agents eziFoaming eziSebenza ngokuPhezulu kwiSellula Concrete
Phakathi kwezidibaniso zekhonkrithi, ii-agent ezikhupha amagwebu zisetyenziselwa ukuvelisa ikhonkrithi enegwebu. Ezi arhente zinokuthathwa kwizinto ezahlukeneyo. Ezinye zezi ziquka ialkyl sulphates, i-amine oxides kunye ne-polygylcol sulphates. Ezi zongezwa kwikhonkrithi ngendlela yolwelo okanye i powders.
Iiplastiki zekhonkrithi eziqhelekileyo ziqulethe i-naphtha-lene sulphonates kunye ne-melamine sulphonates. Ngokuqhelekileyo zongezwa ngokwemiyinge ukusuka 0.2 ukuya 0.5 % ngobunzima. Oku kwanele ukunyusa i-slump yekhonkrithi ngaphandle kokuchaphazela umxholo wayo wamanzi. Nangona kunjalo, ubungakanani bezi zixube kumxube wekhonkrithi uphantsi kakhulu, ngoko ke abavumelekanga ukuba bakhutshwe ngokuthe ngqo kwisixokelelwano sogutyulo.
Le mixube ayibonwa njengengozi ebantwini, njengoko zinokonakala. Kananjalo azicaphukisi. I-concrete admixtures ihlelwe njengekhuselekile ngokuhambelana neKomiti yaseJamani yeConcrete eQinisekisiweyo. (I-DAfStb).
Uvavanyo lweemveliso lulawulwa yi-REACH, umthetho waseYurophu olawula ukubhaliswa, ukugunyaziswa kunye novavanyo lweekhemikhali. Injongo kukuqinisekisa umgangatho ophezulu wokukhusela impilo yabantu kunye nokusingqongileyo.
Uninzi lwemixube yekhonkrithi isekelwe kwiikhompawundi eziphezulu eziconsisiweyo. Ezi ikakhulu zenziwe ngeetyuwa ze-acids ezinamafutha aphezulu. Ngexesha leaching ezi zinto, i-monomer compounds isuswe ngokuyimfuneko kwikhonkrithi.
Ambalwa abameli ababalulekileyo abadityanisiweyo bekhonkrithi yicitric acid, iasidi ye-lactic, malic acid, i-tartaric kunye ne-gluconic acid. Ezi zibonwa ngokubanzi njengezikhuselekileyo, nangona zinetyhefu ethile.