I-Calcium Formate (Ca(HCOO)₂) ku-Cement Hydration: Imiphumela kanye Nezindlela

I-Calcium formate (Ca(HCOO)₂), umkhiqizo ophuma ekukhiqizweni kwe-polyol, isetshenziswa kabanzi kusimende njengesisheshisi sokusetha ngokushesha, isithambisi, kanye nesithuthukisi samandla okuqala, okunciphisa kakhulu isikhathi sokuqina kanye nokusheshisa ukusetha.

Kusimende ojwayelekile wasePortland, i-Ca(HCOO)₂ ikhuthaza ukumuncwa kwe-C3S (triccalcium silicate) futhi yandisa ukwakheka kwe-ettringite (AFt), ngaleyo ndlela ithuthukise amandla okuqala. Kodwa-ke, ithonya layo ekumuncweni kokumuncwa kwe-sulphoaluminate cement (SAC) alikahlolwa.

Kulolu cwaningo, sihlole umthelela we-Ca(HCOO)₂ ekufakweni kwamanzi kwe-SAC kwasekuqaleni ngokuhlaziya:

• Isikhathi sokusetha
• Ukushisa kwamanzi
• I-XRD (ukuphambuka kwe-X-ray)
• I-TG-DSC (i-calorimetry yokuskena ye-thermogravimetric-differential)
• I-SEM (ukuskena i-electron microscopy)

Okutholakele kunikeza ukuqonda ngendlela yokusebenza kwe-Ca(HCOO)₂ ekufakweni kwe-SAC, okufaka isandla ekuqondeni okujulile kokusebenza kwayo kwezinye izinhlelo zesimende.

Chofoza lapha ukuthola isilinganiso esincishisiwe se-calcium formate.

Ithuba lokonga izindleko zokuthenga i-Calcium formate!
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