1) Kuvandudza simba resimende slurry uye dhaka chimwe chezviratidzo zvekushanda kwepamusoro kwekongiri.Chimwe chezvinangwa zvikuru zvekuwedzera metakaolin kuvandudza kusimba kwesamende dhaka uye kongiri.

Poon et al, Simba rayo pa28d uye 90d rakaenzana nere metakaolin simende, asi simba rayo rekutanga rakaderera pane simende yebhenji.Ongororo inoratidza kuti izvi zvinogona kunge zvine hukama neyakaomesesa agglomeration yesilicon poda yakashandiswa uye isina kukwana kupararira mune simende slurry.

(2) Li Keliang et al.(2005) akadzidza mhedzisiro yekushisa kwecalcination, nguva yecalcination, uye SiO2 uye A12O3 zvirimo mu kaolin pane basa re metakaolin kuvandudza simba resimende kongiri.Kongiri yakasimba uye mapolima evhu akagadzirwa achishandisa metakaolin.Mhedzisiro yacho inoratidza kuti kana zviri mukati metakaolin iri 15% uye mvura simende reshiyo iri 0.4, simba rekumanikidza pamazuva makumi maviri nemasere i71.9 MPa.Kana zviri mukati metakaolin iri 10% uye mvura simende reshiyo iri 0.375, simba rekumanikidza pamazuva makumi maviri nemasere i73.9 MPa.Uyezve, kana zvinyorwa zve metakaolin zviri 10%, indekisi yebasa rayo inosvika 114, iyo 11.8% yakakwirira kudarika imwechete yesilicon powder.Nokudaro, zvinotendwa kuti metakaolin inogona kushandiswa kugadzira kongiri yakakwirira-yakasimba.

Iyo axial tensile stress-strain hukama hwekongiri ne0, 0.5%, 10%, uye 15% metakaolin yemukati yakadzidzwa.Zvakaonekwa kuti nekuwedzera kwemetakaolin yemukati, iyo peak strain yeaxial tensile simba rekongiri yakawedzera zvakanyanya, uye iyo tensile elastic modulus yakaramba isingachinjiki.Nekudaro, iyo yekumanikidza simba rekongiri yakawedzera zvakanyanya, nepo compressive simba reshiyo yakadzikira.Kusimba kwesimba uye kusimba kwekongiri ine 15% kaolin yemukati ndeye 128% uye 184% yereferensi kongiri, zvichiteerana.
Pakudzidza kusimba kwe ultrafine poda ye metakaolin pakrete, zvakaonekwa kuti pasi pemvura yakafanana, simba rekumanikidzika uye simba rekugadzirisa redhaka rine 10% metakaolin rakawedzera ne6% kusvika ku8% mushure memazuva makumi maviri nemasere.Iko kuvandudzwa kwesimba rekutanga kwekongiri yakasanganiswa nemetakaolin yakakurumidza zvakanyanya kupfuura iyo yekongiri yakajairwa.Kana ichienzaniswa nebenchmark kongiri, kongiri ine 15% metakaolin ine 84% kuwedzera kwe3D axial compressive simba uye 80% kuwedzera kwe28d axial compressive simba, nepo static elastic modulus ine 9% kuwedzera mu3D uye 8% kuwedzera. mu28d.

Kufurira kwechikamu chakasanganiswa chevhu metakaolin uye slag pakusimba uye kusimba kwekongiri yakadzidzwa.Mhedzisiro yacho inoratidza kuti kuwedzera metakaolin kune slag kongiri kunovandudza kusimba uye kusimba kwekongiri, uye iyo optimal reshiyo ye slag kune simenti inosvika 3: 7, zvichikonzera kusimba kwekongiri.Musiyano mukuru wekongiri yekongiri wakakwira zvishoma pane iyo yekongiri imwechete yekrete nekuda kwekuputika kwegota remetakaolin.Simba rayo rekutsemura rinotsemuka rakakwira kupfuura iro rebenchmark kongiri.

Kushanda, kusimba kwesimba, uye kusimba kwekongiri zvakadzidzwa nekushandisa metakaolin, madota enhunzi, uye slag sechinzvimbo chesimende, uye kusanganisa metakaolin nedota renhunzi uye slag zvakasiyana kugadzira kongiri.Zvigumisiro zvinoratidza kuti kana metakaolin inotsiva 5% kusvika 25% simenti muhuwandu hwakaenzana, simba rekumanikidzika rekrete pamazera ose rinovandudzwa;Kana metakaolin ichishandiswa kutsiva simende ne20% muhuwandu hwakaenzana, simba rekumanikidza pazera rega rega rakanakira, uye simba rayo pa3d, 7d, uye 28d i26.0%, 14.3%, uye 8.9% yakakwirira kupfuura yekongiri isina metakaolin. akawedzera, zvichiteerana.Izvi zvinoratidza kuti kune Type II Portland simende, kuwedzera metakaolin kunogona kuvandudza simba rekongiri yakagadzirwa.

Kushandisa simbi slag, metakaolin, uye zvimwe zvinhu sechinhu chikuru mbishi kugadzirira geopolymer simende panzvimbo yechinyakare Portland simende, kuitira kuzadzisa chinangwa chekuchengetedza simba, kuderedza kushandiswa, uye kushandura tsvina kuita pfuma.Mhedzisiro yacho inoratidza kuti kana zviri mukati mesimbi uye nhunzi madota zviri zviviri 20%, simba rebvunzo block pamazuva makumi maviri nemasere rinosvika zvakanyanya (95.5MPa).Sezvo huwandu hwesimbi slag hwakawedzerwa hunowedzera, inogona zvakare kuita rimwe basa mukudzikisa kuderera kwegeopolymer simende.

Uchishandisa nzira yehunyanzvi ye "Portland simende + inoshanda mineral admixture + yakakwirira-inoshanda yekudzikisa mvura mumiririri", magnetized mvura kongiri tekinoroji, uye akajairwa maitiro ekugadzirira, kuyedza kwakaitwa pakugadzirira yakaderera-kabhoni uye yekupedzisira-yakakwirira simba dombo slag kongiri uchishandisa. zvigadzirwa zvakadai sematombo uye slag kubva kune zvakasiyana-siyana zvemunharaunda.Mhedzisiro yacho inoratidza kuti muyero wakakodzera wemetakaolin i10%.Huremu kusvika kusimba reshiyo yemupiro wesimende payuniti imwe yemhando yepamusoro-yakakwirira simba redombo rematombo kongiri ingangoita 4.17 nguva yekongiri yakajairika, 2.49 nguva yekongiri yakasimba-yakasimba (HSC), uye 2.02 nguva yeiyo reactive poda kongiri (RPC )Naizvozvo, ekupedzisira-yepamusoro simba dombo slag kongiri yakagadzirirwa neakaderera dosage simende ndiyo inotungamira kongiri kusimudzira munguva yakaderera-kabhoni hupfumi.

(3) Mushure mekuwedzera kaolin nekupikisa chando kune kongiri, ukuru hwepore yekongiri hwakaderedzwa zvakanyanya, kuvandudza kutonhora-kunyorova kwekongiri.Pasi peimwe nhamba yechando-inonyungudutswa, iyo elastic modulus yesampu yekongiri ine 15% kaolin yemukati pamazuva makumi maviri nemasere ekuzvarwa yakakwira zvakanyanya kupfuura iyo yereferensi kongiri pamazuva makumi maviri nemasere.Iko kuumbwa kwekushandiswa kwemetakaolin uye mamwe mamineral ultrafine poda mukongiri anogona zvakare kuvandudza zvakanyanya kusimba kwekongiri.