Kunze kwekukwezva kwayo kwekuona, zvidhinha (sechinhu chekunze chekuvakisa) chinogara kwenguva refu.Nokufamba kwenguva, zvisinei, kuipa kwayo hakudzivisiki.Nekuti zvidhinha zvine porous - zvinokura kana chibvumirano zvinoenderana nehunyoro hwehunyoro uye nekupisa kwemafuta - mvura inogara ichityisidzira uye chikonzero chikuru chekuipa kwezvidhinha pahamvuropu yekuvaka.Ndozvakaita kurambidzwa kufamba muzvidhinha kuvaka envelope masisitimu.
Mhando dzeKuvaka Madziro
Madziro ekunze ezvidhinha anogona kuverengerwa semadziro emadziro kana madziro emvura.Madziro emadziro anovakwa neakasimba masonry pasina makomba emvura.Iwo anogona kugadzirwa neamwechete kana akawanda wythes, akazara nezvidhinha, kana nekongiri masonry unit kana terra cotta back-up.Multiple wythe zvidhinha zvipingamupinyi madziro (matatu wythes kana anopfuura) akagadzirirwa kudzivirira kupinza kwemvura munzvimbo dzemukati kuburikidza nehukuru.Nenzira yakanaka, huwandu hwemvura inobatwa nemadziro pane imwe nguva yakapiwa ishoma kudarika inogona kuparara munguva imwe chete.Mumadziro anovharira akavakwa nezvidhinha zviviri (kana mumadziro akaumbwa), collar joint (yakaomeswa yakasimba nedhaka) inojoinha zvidhinha zvechiso nemasoni back-up.Mvura inopinda pachidhinha chechiso inotevedza mubatanidzwa wekorari ichidzika kusvika pakupenya uko inoburitswa nepajoin yemubhedha uye/kana pakuchema, kana kuti inoparara nechiso chemadziro.
Madziro emvura akagadzirwa aine maburi pakati pekunze kwekunze kwezvidhinha zvechiso uye madziro ekumashure (zvidhinha, kongiri masonry units, simbi kana huni stud kuumba).Zvakanaka, mvura inopinda pachidhinha chechiso kana kupinda mugomba inounganidzwa pakupenya uko inobudiswa kuburikidza nejoi remubhedha uye / kana pakuchema.
Kana Zvidhinha Zvekunze Zvikakundikana
Zviratidzo zvekuparara kwemadziro ekunze kwezvidhinha zvinowanzokonzereswa nekupinzwa kwemvura uye zvinosanganisira kusviba uye efflorescence, kuputika / kuparara / kutama, uye kuparara kwemajoini edhaka, pakati pezvimwe zvinhu.
Efflorescence inoitika apo mvura inosuka munyu unonyungudika kubva mudhaka uye pamusoro pezvidhinha.Izvo zvinoonekwa muchimiro chewhite crystalline particles inokura pazvidhinha painoputika mvura.
Kutsemuka nezvidhinha zvinogona kuitika kana mvura ikanyura/kuchengetwa nezvidhinha chando.Kuwedzera kwesimbi (yakamisikidzwa inosimbisa kana matinji) kubva ngura mumadziro ezvidhinha masisitimu anogona kukonzera kutsemuka/kutamiswa.
Dhaka, rinoshandiswa kubatanidza zvidhinha pamwe chete, rinofanira kuva rakapfava kupfuura chidhinha chinosunga (kuitira kuti zvidhinha zvisatsemuka panguva yekuwedzera), uye zvinofanira kugadzirwa nenzira (concave/rodded) inoodza mwoyo kuunganidzwa kwemvura mujoini.Kunongedzazve kunodiwa kana chisungo chiri pakati pechidhinha nedhaka chakundikana.
Mabasa eKununura (Sherufu) Makona uye Akapfava Majoini
Zvidhinha zvinowedzera uye zvibvumirano nekuchinja kwekushisa uye hunyoro hwehuwandu.Kubvisa (sherufu) makona anodiwa kuti uve nechokwadi chekuti kufamba kunowanikwa pakati pezvidhinha zvechiso uye kumashure-kumadziro masisitimu, uye kuti kutsemuka uye kusimuka kunokonzerwa nekuzvidzora muhurongwa kunoderedzwa.Majoini akapfava akaiswa pahorizontal (sherufu) makona, uye padanho rekutonga uye majoini ekuwedzera, anogonesa kufamba uye kugadzira zororo pakuwedzera kwezvidhinha.