Ukuphakama okuncitshisiweyo kwebhloko yovavanyo kwi-mold emva kokubunjwa kubonisa umphumo we-hydroxypropyl methylcellulose kwi-volume stability of foamed concrete.Ingabonwa ukuba i-dosage ye-0.05% ye-hydroxypropyl methylcellulose yimilinganiselo efanelekileyo, kwaye xa i-dosage ye-hydroxypropylmethylcellulose yi-0.05%, ukuphakama kokunciphisa kunyuka ngokuqhubekayo.Uhlalutyo lubonisa ukuba xa i-hydroxypropyl methylcellulose ifanelekile, inokunciphisa umthamo wokunciphisa umzimba onzima ngelixa uphucula umbane we-slurry.Ngethuba lenkqubo yokuqina kwe-slurry, amanzi alahlekile ngokuqhubekayo.I-foam yangaphakathi iphinda idideke rhoqo, kwaye ukunciphisa umzimba onzima akunakuphepheka.Oku kubangela ukuba umthamo womzimba onzima ungaqinisekanga, kwaye ukuxuba i-hydroxypropyl methylcellulose ayinikezeli kuphela umzimba okhuni Awunayo nje impembelelo efanelekileyo yokugcina amanzi, kodwa iphinde iqinise kwaye iqinise i-foam yokuqala ngokusebenzisa iimpawu zokuqina kwe-slurry kunye ne-hydroxypropyl. ifilimu ye-methylcellulose yokuqina ngexesha elifanayo, ukuze udlale i-foam efanelekileyo yokuzinzisa kunye nokunciphisa ukucutha komthamo womzimba onzima.
Ukuzinzisa i-foam encedisayo
Njengoko isixa se-hydroxypropyl methylcellulose sanyuswa ukuya kwi-0.5%, ukuthotywa kwehle kancinci.Idatha ibonisa ukuba xa umxholo we-hydroxypropyl methylcellulose ungadluli i-0.05%, ukongezwa kwe-hydroxypropyl methylcellulose kunokuphucula kakhulu umbane kunye ne-viscosity ye-slurry yekhonkrithi enegwebu.Emva kokuba i-hydroxypropyl methylcellulose ichithwe, ifilimu enomanzi e-elastic eguquguqukayo yenziwa phakathi kweengqungquthela zesigaba esiqinileyo kunye ne-gas phase bubbles, enefuthe elihle kakhulu ngexesha lokuxuba.I-Slurry ikhululekile kwaye ifanayo "ibhola", ephucula ngokufanelekileyo i-fluidity ye-slurry exutywe ngokutsha: kodwa ukuba inani le-hydroxypropyl methylcellulose lidlula i-0.5%, i-slurry iya kuba yi-viscous kakhulu kwaye i-fluidity iya kuncitshiswa kakhulu.Nangona kunjalo, i-0.05% ye-hydroxypropyl methylcellulose ayiqinisekisi nje kuphela i-slump, kodwa iphinda izinze iibhubhu zomoya, ezilungele ukongeza abantu.
Ixesha lokuposa: Apr-23-2023