Kodi Gypsum Mortar ndi chiyani?

Gypsum Mortar: Chidule Chachidule

Mawu Oyamba

Gypsum mortndi zomangira zachikhalidwe zopangidwa makamaka ndi gypsum, mchere wofewa wa sulphate womwe umadziwika kuti calcium sulfate dihydrate (CaSO₄ · 2H₂O). Zogwiritsidwa ntchito kuyambira kalekale, zimakhala ngati zomangira pamiyala ndi pulasitala, zomwe zimapereka zinthu zapadera monga kuyika mwachangu komanso kukana moto. Mosiyana ndi matope a laimu kapena simenti, matope a gypsum ndiwoyenera kwambiri ntchito zamkati chifukwa cha chidwi chake cha chinyezi. KimaCell® Cellulose ether imayang'ana mbiri yake, kapangidwe kake, kupanga, kugwiritsa ntchito, komanso kufunikira kwake kwamakono.

Ntchito Yakale

Mtondo wa Gypsum uli ndi mbiri yakale, kuyambira kalekale.

• Igupto wakale: Aigupto ankagwiritsa ntchito matope a gypsum pomanga mapiramidi, makamaka pomanga miyala ndi zinthu zokongoletsera. Kuchuluka kwa mcherewu m'chigwa cha Nile kunapangitsa kuti ikhale yabwino kusankha.
• Mesopotamiya: Gypsum idagwiritsidwa ntchito mu ziggurats ndi masonry chifukwa cha kupezeka kwake komanso kugwiritsa ntchito mosavuta.
• Nthawi zachi Greek ndi Aroma: Ngakhale matope a laimu anali ambiri, gypsum adagwiritsidwa ntchito m'madera omwe ali ndi ma depositi achilengedwe.
• Zaka zapakatikati: Ku Ulaya, gypsum (yotchedwa "Plaster of Paris" yochokera ku quarries pafupi ndi Montmartre) inali yokondedwa chifukwa cha kumaliza mkati ndi ntchito yokongoletsera.

Ngakhale kuti matope a gypsum anali atayamba kale, matope a gypsum anasiya kugwiritsidwa ntchito kunja kwa nthawi ya Renaissance ngati laimu ndipo, pambuyo pake, matope a simenti anapatsa mphamvu kwambiri kumadera amvula.

Mapangidwe ndi Katundu

Chemical Composition:
Gypsum mortar imachokera ku calcium sulfate dihydrate. Pamene calcined pa 150 ° C, imataya madzi kuti ipange calcium sulfate hemihydrate (CaSO₄ · 0.5H₂O), yomwe imabwereranso ikasakanikirana ndi madzi, kupanga matrix olimba.

Mitundu ya Gypsum:

• Natural Gypsum: Kukumbidwa kuchokera ku sedimentary deposits.
• Synthetic Gypsum: Zopangidwa ndi mafakitale (mwachitsanzo, flue-gas desulfurization).

Zowonjezera:
Mchenga (aggregate), laimu (retarder), ulusi (zowonjezera), ndi ma polima (kukana madzi) amawonjezera magwiridwe antchito.

Zofunika Kwambiri:

• Kukhazikitsa Mwachangu: Imakhala mkati mwa mphindi, ndikupangitsa kuti kumanga mwachangu.
• Kukaniza Moto: Imatulutsa nthunzi yamadzi ikatenthedwa, kuchedwetsa kufalikira kwa moto.
• Thermal ndi Sound Insulation: Kutsika kwa matenthedwe matenthedwe komanso kutsitsa mawu.
• Chinyezi Sensitivity: Amasungunuka m'madzi, kuchepetsa kugwiritsa ntchito panja.

Njira Yopangira

1. Migodi: Kuchotsa miyala ya gypsum kuchokera ku miyala.
2. Kuphwanya ndi Kupera: Gypsum yaiwisi imachepetsedwa kukhala ufa wabwino.
3. Kuwerengera: Kutentha kwa 150 ° C mu kilns kupanga hemihydrate.
   • Beta Hemihydrate: Porous, ntchito pulasitala muyezo.
   • Alpha Hemihydrate: Denser, pakugwiritsa ntchito mwamphamvu kwambiri.
4. Kusakaniza: Kuphatikiziridwa ndi madzi, mchenga, ndi zowonjezera kupanga phala logwira ntchito.

Mapulogalamu

Zakale:

• Kumanga m'malo owuma (mwachitsanzo, mapiramidi aku Egypt).
• Zokongoletsera za pulasitala mu medieval Europe.

Zamakono:

• Makoma Amkati: Pulakitala ndi zomangira zomangira.
• Kuzimitsa moto: Kuphimba zitsulo ndi mizati.
• Kubwezeretsa: Kusunga zomangira zakale.
• Zinthu Zopangiratu: mapanelo opepuka ndi zokongoletsera zokongoletsera.

Ubwino ndi Kuipa kwake

Ubwino:

• Kukhazikitsa mwachangu kumafulumizitsa nthawi yanthawi ya polojekiti.
• Kukana kwabwino kwa moto komanso kutsekemera kwamafuta.
• Kugwiritsa ntchito mosalala komanso kuchepa pang'ono.

kuipa:

• Itha kuwonongeka ndi madzi.
• M'munsi compressive mphamvu kuposa simenti.
• Brittle Natural imachepetsa kugwiritsa ntchito kamangidwe.

Kufananiza ndi Matondo Ena

• Lime Mortar: Yopuma komanso yosinthika koma yokhazikika pang'onopang'ono.
• Mtondo wa Cement: Mphamvu zapamwamba komanso kukana madzi koma zopatsa mphamvu.
• Mitundu ya Hybrid Mortars: Phatikizani liwiro la gypsum ndi kulimba kwa laimu.

Zamakono Zamakono

• Mapangidwe Osamva Madzi: Zowonjezera za polima zimakulitsa magwiridwe antchito.
• Mitondo Yowonjezeredwa: Fiberglass kapena cellulose imawonjezera mphamvu.
• Kusindikiza kwa 3D: Kusungunuka kwa Gypsum kumayenderana ndi mamangidwe odabwitsa.

Environmental Impact

• Kukhazikika: Gypsum imatha kubwezeretsedwanso ndipo imagwiritsa ntchito mphamvu zochepa kuposa simenti.
• Zovuta: Kuwonongeka kwa migodi ndi kuwopsa kwa kutaya kosayenera (monga kutulutsa hydrogen sulfide).

Gypsum mortimakhalabe yofunika kwambiri pomanga, makamaka m'nyumba ndi zotchingira moto. Ngakhale kuti mbiri yake yakhala ikusintha, zatsopano zikupitiriza kuthana ndi zofooka zake, kuonetsetsa kuti zikugwirizana ndi zomangamanga zokhazikika komanso zamakono. Momwe makampaniwa amafunafuna zinthu zokomera chilengedwe, kubwezeretsedwanso kwa gypsum komanso kutsika kwa carbon footprint kumayiyika ngati chinthu chamtengo wapatali.