Gypsum
Gypsum ndi mchere womwe umagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana chifukwa chazinthu zambiri komanso zopindulitsa. M'nkhaniyi, tiwona momwe gypsum imayambira, mawonekedwe akuthupi ndi mankhwala, ntchito, ndi thanzi la gypsum.
Origins Gypsum ndi mchere wofewa wa sulphate womwe umapezeka m'madipoziti akuluakulu padziko lonse lapansi. Amapangidwa chifukwa cha nthunzi wa madzi amchere, ndipo dzina lake limachokera ku liwu lachi Greek lakuti "gypsos," lomwe limatanthauza pulasitala.
Physical and Chemical Properties Gypsum ili ndi mankhwala a CaSO4 · 2H2O ndi kuuma kwa Mohs kwa 2. Ndi mchere wonyezimira wonyezimira wokhala ndi silky luster ndi mawonekedwe a fibrous kapena granular. Gypsum imasungunuka kwambiri m'madzi, ndipo imatha kuphwanyidwa kukhala ufa wabwino.
Gypsum amagwiritsa ntchito zambiri m'mafakitale osiyanasiyana, kuphatikiza:
- Ntchito yomanga: Gypsum imagwiritsidwa ntchito ngati zomangira pantchito yomanga. Amagwiritsidwa ntchito popanga plasterboard, yomwe imakhala yofala pamakoma ndi denga. Gypsum imagwiritsidwanso ntchito popanga simenti ngati chochepetsera kuchepetsa kuyika kwa simenti.
- Ulimi: Gypsum amagwiritsidwa ntchito paulimi ngati chowongolera dothi kuti nthaka ikhale yabwino komanso kusunga madzi. Amagwiritsidwanso ntchito ngati gwero la calcium ndi sulfure, zomwe ndizofunikira pakukula kwa mbewu.
- Ntchito zamafakitale: Gypsum imagwiritsidwa ntchito m'mafakitale osiyanasiyana, monga kupanga mapepala komanso zodzaza utoto ndi mapulasitiki.
- Zojambulajambula ndi zokongoletsera: Gypsum imagwiritsidwa ntchito muzojambula ndi zokongoletsera ngati zinthu zosema, zojambulajambula, ndi zojambula. Amagwiritsidwanso ntchito ngati zokongoletsera za makoma ndi kudenga.
Health Effects Gypsum nthawi zambiri imadziwika kuti ndi mchere wotetezeka wokhala ndi thanzi lochepa. Komabe, kukhudzana ndi fumbi lambiri la gypsum kungayambitse mavuto opuma, monga kutsokomola ndi kupuma movutikira. Kuwonekera kwa nthawi yayitali ku fumbi la gypsum kungayambitsenso kuwonongeka kwa mapapo, kuphatikizapo silicosis ndi khansa ya m'mapapo.
Kuphatikiza pa zotsatira za thanzi, gypsum ikhoza kukhala ndi zotsatira za chilengedwe. Kukumba ndi kukonza gypsum kungayambitse kukokoloka kwa nthaka, kuipitsa madzi, ndi kuwononga malo okhala nyama zakuthengo.
Pomaliza Gypsum ndi mchere wosunthika womwe umagwiritsidwa ntchito m'mafakitale osiyanasiyana. Amagwiritsidwa ntchito kwambiri pomanga, ulimi, mafakitale, komanso luso lazojambula ndi zokongoletsera. Ngakhale kuti gypsum nthawi zambiri imatengedwa kuti ndi mchere wotetezeka, kukhudzana ndi fumbi lambiri la gypsum kungayambitse vuto la kupuma ndipo kuwonetseredwa kwa nthawi yaitali kungayambitse kuwonongeka kwa mapapo. Chifukwa chake, ndikofunikira kugwiritsa ntchito njira zodzitetezera pogwira ndi kukonza gypsum.
Nthawi yotumiza: Apr-15-2023