Calcium Formate (Ca(HCOO)₂) mu Simenti Yothira Madzi: Zotsatira ndi Njira

Calcium formate (Ca(HCOO)₂), yomwe imachokera ku polyol, imagwiritsidwa ntchito kwambiri mu simenti ngati cholimbikitsira mwachangu, mafuta, komanso chowonjezera mphamvu zoyambirira, zomwe zimafupikitsa nthawi yolimba komanso kufulumizitsa kukhazikitsa.

Mu simenti yanthawi zonse ya Portland, Ca(HCOO)₂ imalimbikitsa kusungunuka kwa C3S (triccalcium silicate) ndikuwonjezera kupangika kwa ettringite (AFt), motero kumawonjezera mphamvu yoyambirira. Komabe, mphamvu yake pa kusungunuka kwa simenti ya sulphoaluminate (SAC) sinafufuzidwebe.

Mu kafukufukuyu, tinafufuza momwe Ca(HCOO)₂ imakhudzira madzi a SAC pofufuza:

• Nthawi yokhazikitsa
• Kutentha kwa madzi
• XRD (kufalikira kwa X-ray)
• TG-DSC (kusanthula kwa calorimetry ya thermogravimetric-differential scanning)
• SEM (kusanthula maikulosikopu ya elekitironi)

Zomwe zapezekazi zikupereka chidziwitso cha momwe Ca(HCOO)₂ imagwirira ntchito mu SAC hydration, zomwe zimathandiza kumvetsetsa bwino momwe imagwirira ntchito m'njira zina za simenti.

Dinani apa kuti mupeze mtengo wotsika wa calcium formate.

Mwayi wopulumutsa ndalama wogula Calcium formate!
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