Izithasiselo zikakhonkolo ezingasindi | Ama-ejenti Akhipha Amagwebu Asebenza Kakhulu Wokhonkolo Weselula
Izithasiselo ze-chemical hardener zandisa amandla nokumelana nokuhuzuka kwephansi likakhonkolo futhi zisiza ekuvikeleni indawo engaphezulu ekungeneni komswakama.. Iziqinisekiso zikakhonkolo zaphansi zilungele ukusetshenziswa ezindaweni zokugcina izimpahla nakwezinye izindawo zezimboni lapho zingangenwa khona izintuli, qina, Kudingeka izindawo ezimelana namakhemikhali kanye nemihuzuko. isithasiselo se-hardener kakhonkoloziyasebenza futhi uma zisetshenziswa nezinto zokupholisha zikakhonkolo eziqinisekisiwe eziluhlaza kanye nokugaya idayimane ukuze kwakheke ukukhanya okukhulu., high sheen ukhonkolo ukuqeda phansi.
Ngokujwayelekile, i-chemical hardener/densifier iqukethe ama-silicates, usawoti oncibilikayo noma ama-siliconate asabela ne-calcium hydroxide ebuthakathaka kukhonkolo lapho kunomswakama futhi asetshenziswa endaweni ekhonkolo uma esevele ephulukisiwe ukuze enze ama-aggregate aqine.. Iningi lalezi ziqinisi eziwuketshezi zingena zijule kukhonkolo futhi inqobo nje uma umswakama ukhona uzoqhubeka nokusabela ngokwekhemikhali ne-calcium hydroxide ebuthakathaka ukuze kukhiqizwe ukuqina., indawo eminyene.
Isizathu esiyinhloko sokulinda 7 izinsuku ngaphambi kokufaka i-chemical hardener/densifier ukuthi ukhonkolo ngokuvamile uzuza mayelana 60-65% ukugeleza kwayo phakathi nalesi sikhathi, okuholela ekutheni ukhonkolo ukhiqize i-calcium hydroxide eyeqile. Ngokulinda, kunezindawo eziningi ezitholakalayo zokusabela kwamakhemikhali futhi lokhu kwenza ukuqina nokuminyana kwenzeke ngokushesha okukhulu.
Inganekwane evamile ukuthi i-hardener yamakhemikhali yenza ukwakheka kwekristalline ye-tobermorite ye-hydrated usimende unamathisele., nokho ongoti bezimboni bayavuma ukuthi akunjalo. Iziqinise amakhemikhali, uma isetshenziswe ngendlela efanele futhi ngokungaguquguquki, ukunciphisa i-porosity kukhonkolo ngokugcwalisa ama-capillaries kukhonkolo nge-silicates, ngaleyo ndlela kunciphisa inani lomhwamuko wamanzi okwazi ukudlula kukhonkolo, ngenkathi kukhula ukuhuzuka nokumelana nokugqoka.