Metakaolin, ib yam khoom siv pozzolanic uas muaj calcined kaolin ua rau muaj kev cuam tshuam siab, tab tom nce qib thoob ntiaj teb ua ib yam khoom siv cementitious supplementary (SCM) thiab cov khoom siv ntxiv rau kev tsim kho, kev tsim kho ib puag ncig, thiab kev tsim khoom siab heev. Cov kev tshawb fawb tsis ntev los no thiab kev sim ua lag luam qhia txog nws qhov kev ua tau zoo tshwj xeeb hauv kev txo cov pa roj carbon dioxide, txhim kho lub zog kho tshuab, thiab txuas ntxiv lub neej ua haujlwm ntawm cov khoom siv hauv paus, ua rau nws yog ib qho tseem ceeb rau kev ua tiav cov hom phiaj decarbonization thoob ntiaj teb.

Cov kev tshawb fawb tshawb fawb luam tawm xyoo 2026 lees paub tias metakaolin txhim kho qhov microstructure, lub zog compressive, thiab kev ruaj khov ntawm cov pob zeb thiab mortar. Thaum hloov 12.5% ​​txog 15% ntawm Portland cement, metakaolin blends xa cov qauv sab hauv denser, elastic modulus siab dua, thiab tiv taus chloride nkag mus, sulfate tawm tsam, thiab kub siab laus. Cov kev txhim kho no ua rau metakaolin zoo tagnrho rau cov pob zeb ua haujlwm siab, qhov av grouting, cov qauv marine, thiab cov khoom precast.

Tsis tas li ntawm kev tsim kho, metakaolin tab tom nthuav dav mus rau hauv kev kho kom zoo rau ib puag ncig thiab kev kho mob biomedical. Metakaolin-based geopolymer microspheres qhia tau tias muaj kev ua haujlwm zoo hauv kev nqus cov fluoride thiab cov hlau hnyav los ntawm cov dej khib nyiab acidic, muab cov kev daws teeb meem pheej yig rau kev tswj hwm kev ua qias tuaj hauv kev lag luam. Lub caij no, cov khoom sib xyaw nano-hydroxyapatite / metakaolin tshiab, uas tau los ntawm cov khib nyiab qe, qhia txog kev cog lus rau cov pob txha scaffolding, sib xyaw ua ke biocompatibility nrog kev ruaj khov kho.

Cov ntaub ntawv lag luam qhia tau hais tias lub ntiaj teb metakaolin sector tab tom loj hlob ruaj khov, tsav los ntawm cov cai tsim vaj tsev ntsuab thiab kev nqis peev hauv kev tsim kho vaj tse. Lub lag luam tau txog kwv yees li USD 1.3 billion hauv xyoo 2024 thiab kwv yees tias yuav tshaj USD 2.2 billion los ntawm xyoo 2033. Cov neeg tsim khoom tab tom nthuav dav cov kev tsim khoom qis-carbon siv cov kaolin tailings thiab qis dua calcination kub (kwv yees li 750 ° C), txo kev siv hluav taws xob piv rau kev tsim cov cement ib txwm muaj.

Kev koom tes hauv kev lag luam tab tom ua kom sai dua rau kev siv. Cov tuam txhab khoom siv loj thiab cov tsev tshawb fawb tab tom lees paub cov metakaolin sib xyaw rau kev tsim cov shotcreting, kev ruaj khov ntawm txoj kev, thiab cov geopolymers uas tsis muaj pov tseg. Cov chaw sim tau raug xaiv los txhim kho kev sib xws ntawm kev tsim khoom thiab cov saw hlau.

Thaum kev lag luam kev tsim kho ua kom cov pa roj carbon tsawg zuj zus, metakaolin sawv tawm ua cov khoom siv uas tau lees paub tias muaj txiaj ntsig zoo, muaj txiaj ntsig zoo rau kev lag luam, thiab muaj kev nyab xeeb rau ib puag ncig. Kev tshawb fawb thiab kev txhim kho txuas ntxiv yuav ua rau nws muaj peev xwm ntxiv rau hauv cov khoom siv khi uas muaj cov pa roj carbon tsawg, cov ntaub ntawv tsim kho 3D uas luam tawm tau, thiab cov txheej txheem kev lag luam uas muaj kev lag luam ncig, ua rau muaj ib puag ncig zoo dua thiab zoo rau ib puag ncig thoob ntiaj teb.