Pa kutentha kochepa, kuchuluka kwa madzi m'nthaka kumachepa, zomwe zimakhudza magwiridwe antchito a nyumbayo. Kutentha kukatsika pansi pa kuzizira, madzi amasanduka ayezi, amakula, ndipo nthawi zambiri amayambitsa zolakwika monga kutsekeka ndi kusweka. Madzi akatha, malo obisika mkati amawonjezeka, zomwe zimachepetsa kwambiri mphamvu ya matope.

Mphamvu ya matope imadalira kwambiri kuchuluka kwa zomwe zimachitika komanso nthawi ya simenti ndi madzi. Madzi akamapangidwa pansi pa 0°C, amaundana, ndipo ngakhale kuti hydration ndi exothermic reaction (yomwe imapereka kutentha pang'ono kwa hydration), mphamvu ya simenti imachepabe. Kutentha kukakwera pamwamba pa 0°C, ayezi amasungunuka, ndipo hydration imayambiranso—koma kayendedwe kameneka kamachepetsa mphamvu ya simenti.

 

Mukufuna chowonjezera chogwira ntchito bwino chomwe chimawonjezera magwiridwe antchito a chakudya komanso mphamvu ya konkriti? Formate calcium yathu (calcium formate) imapereka phindu la mafakitale awiri - titumizireni uthenga kuti mulowetse chitsanzo chanu!

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Nthawi yotumizira: Disembala-17-2025