Ikhonkrithi enegwebu ekhaphukhaphu

Kule minyaka yangoku, ikhonkrithi enegwebu ekhaphukhaphu ifumene ukuthandwa ngenxa yeempawu zayo zokugquma i-thermal kunye nokulula kwemveliso. Nangona kunjalo, olu hlobo lwekhonkrithi lune-drawback yokuba aluzinzanga kakhulu kwisimo salo esitsha kwaye lubonisa ukomisa okuphezulu xa kuqinisiwe.. Kweli phepha, siphuhlisa umxube wekhonkrithi ogwetyiweyo ophuculweyo onokumelana nezi ziganeko zimbi. Iziphumo zovavanyo zalo mxube zibonise ukuba ubume bepore balo buphenjelelwa ngamandla kukuxinana kwawo okomileyo, eyona nto igqitywe ngumxholo we-foam. Kungoko, kubalulekile ukunciphisa ukuxinana okomileyo kwesi sixhobo ukuze kuphuculwe uzinzo kwiindawo ezintsha kunye nezilukhuni..

Owona mlinganiselo uphezulu wesamente, iaggregate enegwebu, kwaye amanzi aphunyezwa ngokulungelelanisa ukuxinana kwemathiriyeli yesamente eyongezelelweyo eyongezelelweyo (SCM) ezifana nothuthu lwempukane, umhlaba granulated blast eziko slag, kunye nomsi we-silica. Ii-SCMs zibandakanywe kuluhlu olwahlukileyo lwemilinganiselo ukusuka 30 ukuya 70 ipesenti ngomthamo. Ukongeza kwezi SCMs, i-arhente ethile yogwebu ebizwa ngokuba yi-GENFIL yongezwa ngenjongo yokuvelisa ikhonkrithi ezinzileyo kunye ne-homogenous yeselula..

Ikhonkrithi enogwebu yaveliswa kusetyenziswa indlela emanzi ngokusebenzisa imixube engaphakathi emile ngokuqhubekayo kwibhodi yokujonga uxinaniso ukuqinisekisa ukudityaniswa okufanelekileyo kwesiseko kunye neeaggregates ezinogwebu.. Ikhonkrithi efunyenweyo ifunyenwe inokugcinwa kwamanzi okuphezulu, i-viscosity ephantsi, kunye nokuziphatha okunamandla kwe-thixotropic, kwaye yayinamandla aphezulu okucinezela kwiminyaka yokuqala kunomxube wokulawula kunye nesamente yodwa. Ngaphezu koko, amandla e-flexural afunyenwe ukuba anyuke kakhulu ngokubandakanywa kwe-POFA, ngenxa yokwenziwa kwejeli eyongezelelweyo ye-C-S-H ngokuphendula kwe-pozzolanic yale SCM.