Kutheni Usebenzisa iRDP kwiConcrete

I-RDP, okanye i-Redispersible Polymer Powder, iyongezo eqhelekileyo esetyenziselwa ukwakhiwa kwekhonkrithi ngezizathu ezahlukeneyo. Ezi zongezo ziyipolymer powders ezinokuthi zisasazwe emanzini ukwenza ifilimu emva kokumisa. Nasi isizathu sokuba i-RDP isetyenziswe kwikhonkrithi:

1. UkuPhuculwa kokuSebenza kunye nokuBambisana: i-RDP inceda ukuphucula ukusebenza kunye nokudityaniswa kwemixube yekhonkrithi. Isebenza njenge-dispersant, inceda ekusasazeni iinqununu zesamente kunye nezinye izongezo kulo lonke umxube. Oku kubangela umxube wekhonkrithi olinganayo kwaye kulula ukuwuphatha.
2. Ukufunxwa kwaManzi okuNcitshisiweyo: Ikhonkrithi equlethe i-RDP idla ngokubonisa iimpawu ezincitshisiweyo zokufunxa amanzi. Ifilimu ye-polymer eyenziwe yi-RDP inceda ukutywina ii-pores kunye ne-capillaries ngaphakathi kwe-matrix yekhonkrithi, ukunciphisa ukunyanzeliswa kunye nokuthintela ukungena kwamanzi. Oku kubaluleke ngakumbi ekwandiseni ukuqina kunye nokuxhathisa kwezakhiwo zekhonkrithi ukuwohloka okunxulumene nokufuma.
3. I-Flexural and Tensile Strength eyomeleziweyo: Ukongezwa kwe-RDP kwimixube yekhonkrithi kunokuphucula iimpawu zamandla e-flexural kunye ne-tensile yekhonkrithi enyangisiweyo. Ifilimu ye-polymer eyenziwe ngexesha le-hydration iphucula i-bond phakathi kwamaqhekeza e-samente kunye ne-aggregates, okubangela ukuba i-matrix yekhonkrithi eqinileyo kunye neyomelele.
4. Ukuphuculwa kokubambelela kunye nokuBonda: I-RDP ikhuthaza ukunamathela okungcono kunye nokudibanisa phakathi kweengqimba zekhonkrithi kunye ne-substrates. Oku kunenzuzo ngakumbi ekulungiseni nasekuhlaziyeni izicelo, apho ulwaleka lwekhonkrithi okanye iipetshi kufuneka zidityaniswe ngokufanelekileyo kumphezulu okhoyo wekhonkrithi okanye isubstrates.
5. Ukuncitshiswa kwe-Shrinkage kunye ne-Cracking: i-RDP inceda ukunciphisa umngcipheko wokunciphisa iplastiki kunye nokuqhekeka kwekhonkrithi. Ifilimu ye-polymer eyenziwe yi-RDP isebenza njengesithintelo ekulahlekeni komswakama ngexesha lamanyathelo okuqala okuhambisa amanzi, evumela ikhonkrithi ukuba iphilise ngokulinganayo kunye nokunciphisa ukuphuhliswa kokuqhekeka kwe-shrinkage.
6. Ukomelezwa kokumelana nokunyibilika komkhenkce: Ikhonkrithi equlethe i-RDP ibonisa ukuxhathisa okuphuculweyo kwimijikelo yokunyibilika komkhenkce. Ifilimu ye-polymer eyenziwe yi-RDP inceda ukunciphisa ukunyanzeliswa kwe-matrix yekhonkrithi, ukunciphisa ukungena kwamanzi kunye nokukwazi ukutshatyalaliswa kweqhwa kwiindawo ezibandayo.
7. UkuPhuculwa kokuSebenza kwiimeko ezinzima: I-RDP inokuphucula ukusebenza kwemixube yekhonkrithi kwiimeko ezinzima zokusingqongileyo, ezifana nokushisa okuphezulu okanye ukufuma okuphantsi. Ifilimu ye-polymer eyenziwe yi-RDP inceda ukugcoba amaqhekeza e-samente, ukunciphisa ukungqubuzana kunye nokuququzelela ukuhamba kunye nokubekwa komxube wekhonkrithi.

ukusetyenziswa kwe-RDP ekuqulunqweni kwekhonkrithi kunika izibonelelo ezininzi, kubandakanywa nokusebenza okuphuculweyo, ukunciphisa ukufunxa kwamanzi, ukomeleza amandla kunye nokuqina, ukubambelela okuphuculweyo kunye nokudibanisa, ukunciphisa ukuncipha kunye nokuqhekeka, ukunyanzeliswa kwe-freeze-thaw, kunye nokuphucula ukusebenza kwiimeko ezinzima. Ezi zibonelelo zenza i-RDP ibe sisongezo esixabisekileyo sokwandisa ukusebenza kunye nokuqina kwekhonkrithi kwizicelo ezahlukeneyo zokwakha.