Izithasiselo zikakhonkolo ezingasindi | Ama-ejenti Akhipha Amagwebu Asebenza Kakhulu Wokhonkolo Weselula
Ukwehliswa kwesisindo ku-Foam Concrete
Enye yezinzuzo eziyinhloko zekhonkrithi ye-foam ukunciphisa isisindo sayo (kuya ku 80%) uma kuqhathaniswa nokhonkolo ovamile. Ngokungafani nokhonkolo ovamile, amabhamuza omoya asatshalaliswa ngokulinganayo kuwo wonke umzimba wokhonkolo wegwebu futhi ubukhulu bawo busukela 0.1 ku 1 mm.
Ukuminyana kukakhonkolo wegwebu kuncike enanini le-ejenti yokugwebu futhi kuyahluka phakathi 400 futhi 1600 kg/m3. Ilungele ukuhleleka, ukwahlukanisa, ukufakwa kwe-insulation nokugcwalisa izinhlelo zokusebenza nge-acoustic/thermal insulation enhle kakhulu, ukumelana nomlilo okukhulu, izindleko zempahla eluhlaza eziphansi, ukupompa okulula futhi ekugcineni akukho ukuhlangana, ukudlidliza noma izinga [1].
Amandla e-Flexural
Amandla acindezelayo kakhonkolo wegwebu ancike ohlotsheni lwe-ejenti enegwebu esetshenzisiwe kanye nombuso we-hydration. Ngaphezu kwalokho, i-elasticity modulus yekhonkrithi yegwebu nayo incike ekumineni kanye nenani lezinye izici.
Amagwebu nama-surfactants kufanele ahlanjululwe ngamanzi ngaphambi kokuyaluza nge-a “ugwayi” ukukhiqiza igwebu elizinzile. Ukunwetshwa okujwayelekile kwegwebu elomile elisekelwe kuphrotheni kungukuthi 20 izikhathi ukumanzi kwe-surfactant.
Ama-ejenti anciphisa amanzi kanye nama-plasticiser awahlangani kahle nama-agent akhipha amagwebu. Ukuze ugweme lokhu, i-superplasticizer ivame ukusetshenziswa ezixubeni zikakhonkolo ezinegwebu.
Kubalulekile ukuqinisekisa ukuthi umoya ongaphakathi uqukethe esitebeleni, mncane, amabhamuza afanayo ahlala eqinile futhi ehlukanisiwe futhi angakhulisi ukufinyeleleka kokunamathisela usimende phakathi kwama-voids. Lokhu kufezwa ngokuqinisekisa ukuthi i-ejenti enegwebu ihlanjululwe ngokuphansi 3% – 5% isilinganiso namanzi ngaphambi kokuthi sinyakaze nge-a “ugwayi”. Ukuba khona kwe-air voids akunciphisi i-elasticity modulus futhi ukhonkolo uhambisana nazo zonke izidingo zesakhiwo esithwala umthwalo..