Varinamire - a yakaonekwa kuti ndeyechokwadi zvinhu kwemazana emakore

Kakawanda, pasi siyana Kupedzwa basa uchishandisa zvinhu zvakadai gypsum purasita. Kunyange vanhu vari kure kugadzira uye magadzirirwo, ziva zita iri. Kwemazana emakore akawanda, ndiyo yakanaka mashoko vavakezve uye kugadzirisa zvivako.

Very dzakarukwa zvakanaka zvakohwewa gypsum varinamire hakurevi kusika musiyano pakati itsva uye rekare unhani masvingo uye ceilings. Ane rakanakisisa marongerwo uye haina kutsemuka. Kushanda nesuko anotanga nokusanganisa nemvura. Zvakakodzera kwemashoko mashoko zvakakwana anozadza makatsemuka uye anotora chimiro kunyange zvidiki.

Varinamire ane porous chimiro, saka kuti hukawanika zvose kubatwa iyi, zvakanaka vanokwanisa rokutora ruzha, nokudaro kuona ruzha kuputira mukamuri. The chena Ruvara ichi zvinhu runoita kurishandisa pasina mamwe staining apo zvakakodzera akanaka coatings chena.

Izvi chivakwa zvinhu? Natural gypsum, kuva crystalline chimiro, ari kurapwa panguva pamatunhu tembiricha. Saka pane kurasikirwa ¾ mvura zviri mukati, uye vatendeuke kupinda chicherwa pacharo hemihydrate iyo, kana yakavhenganiswa nemvura zvakare anogamuchira dzinongoitika ibwe mamiriro. Sezvo pasina kupfuura 1% of gypsum inowedzerwa mamwe makemikari zvinhu rokudzora zvinhu, zviri zvakatipoteredza njodzi kuti vanhu nemhuka. Izvi chivakwa yokunyorera refractories, saka inoita basa rinokosha pakudzivirira zvivako kubva mumoto. Kuwedzera kune zvivako izvi zvose, zviri anokwanisa kupinza zvakawandisa mwando ari kwakavakirwa panguva yayo rinoti richikwidibira kupa mwando panguva yayo mwero.

Gypsum unobereka mhando dzakawanda. Common zvokuvakisa zvinoshandiswa mukugadzira gypsum kongiri uye gypsum zvigadzirwa, varinamire pamapuranga, ukomba uye partition ndiro, gypsum-lime purasita mhinduro. High gypsum muforoma iri zvinoberekwa chinokosha zvemaziso kuvandudzika kwakajairika kuvaka zvinhu kuburikidza pasi kuti mamwe kucheneswa uye milled. Nokuti kunoita stucco nezvimwe decoration zvinogadzirwa kuti omukati uye pamadziro. Varinamire dzakaparadzaniswa panguva yaro Kurapwa: 2-15 maminitsi - zvakasimba ezvinhu; maminitsi 6-30 - romuzvarirwo-ezvinhu; maminitsi anopfuura 20 - asi anononoka-zvakamira.

Simba iyi iri pakutsvaga mavanga, izvo zvakasiyana mukati simba raro compressive (F-2, 3, 4, 5, 6, 7, 15, 10, 19, 16, 22, 25). Gypsum pezvitsiga G-10, 16, 15 runoonekwa kuti dzichiumbwa. zvinhu kwakadaro substantially vakasununguka nouipi uye mukuru simba.

Kana tichishanda ichi zvinhu zvinofanira kuyeukwa kuti nokukurumidza yaita chando, saka regai chete kubika yakawanda rakasanganiswa purasita. Huwandu mvura inodiwa kubudisa musanganiswa kwomuzvarirwo kusachinja-chinja, kazhinji 50-80% (nokuti basa rokuvaka) uye 35-45% nokuda kusikwa zvinhu zvakasiyana-siyana. Kunwisa mvura anogona kuramba ari pores ari vakaomesa zvinhu, pakwakanga runopwa. Somugumisiro, mashoko porosity kuti nesuko achava vanenge 50-60%. Zvakakosha kuyeuka kuti shoma mvura inoshandiswa dilution pamusoro gypsum, kuti denser achava wokupedzisira chigadzirwa kana unhani, uye zvikuru ayo mukurumari. Kukwidza kana achideredza tembiricha zvakaipa kunokanganisa simba Rakasimbisa zvinhu. Kuwedzera dzimwe nguva simba gypsum varinamire inowedzerwa kwachiri pamusoro 5% slaked madota.

Nokuti kushandiswa wezvokurapa anonzi polymer yakabereka gypsum, iyo nyore rikashandiswa kuburikidza mucheka kuti muviri rwakavhunika romurwere. It zvakakwana inotevedzera contours uye ane yakakwirira elongation. Izvi zvinhu ane mukuru porosity, saka ganda munhu anoramba kufema pachena, iyo kunotadzisa panowanikwa kuvava. Dzimwe nguva mabhandeji izvi rinoshandisirwa kuitira kuti varwere vanogona kuita zvimwe kufamba. Izvi zvinhu asingakanganisi kuvhiringidza kurapwa uye Implementation ane X-ray kuzviongorora.