Tsiku Lotumiza:21,Mar,2022

Ma toppings, monga konkire ina iliyonse, amatsatiridwa ndi malingaliro amakampani ambiri pakuthira konkriti kotentha ndi kozizira. Kukonzekera koyenera ndi kuchita ndikofunikira kuti muchepetse zotsatira zoyipa za nyengo yoipa pakukweza, kulimbikitsa, kudula, kuchiritsa ndi kukulitsa mphamvu. Mfundo yofunika kuiganizira pokonzekera kukhudzidwa kwa chilengedwe pa zomangamanga pamwamba ndi ubwino wa slabs omwe alipo. M'nyengo yotentha kwambiri komanso yozizira kwambiri, mbale zam'mwamba ndi zapansi nthawi zambiri zimayikidwa pa kutentha kosiyana, koma zimafika pamlingo wokwanira pakuchiritsa. Kawirikawiri, mbale yoyambira imapanga gulu lalikulu lamagulu (omangidwa kapena osagwirizana), kotero kusintha kwa mbale yoyambira isanamangidwe sikunganyalanyazidwe. Ma toppings ocheperako amatha kukhala okhudzidwa kwambiri ndi nkhani zokhudzana ndi kutentha. Ma mbale ozizira apansi amatha kuyambitsa mavuto chifukwa cha kuchedwa kulimba, kuchedwa kuwonjezereka kwa mphamvu, kapena ngakhale pamwamba pachisanu ngati sichinasinthidwe bwino. Kutentha kwapansi panthaka kumatha kuyambitsa kuuma mwachangu, komwe kumatha kusokoneza magwiridwe antchito, kuphatikiza, kumaliza ndi kulumikizana. Malangizo amakampani othana ndi nyengo yotentha ndi yozizira amalembedwa bwino; komabe, kuthira konkire kumakumananso ndi zoopsa zina zokhudzana ndi nyengo, monga mvula, zomwe makampaniwa sanatchulepo. Nyengo ndi yosadziwikiratu, ndipo nthawi zambiri kuyikako kumachitika pakakhala mwayi wamvula kuti ukwaniritse zofunikira za projekiti. Nthawi, nthawi, ndi mphamvu ya mvula yamkuntho ndizinthu zofunikira zomwe zimakhudza kuyika bwino.

Kukumana ndi mvula panthawi yoyika

Nthawi zambiri, konkriti imathira mvula sidzawonongeka ngati madzi amvula ochulukirapo achotsedwa asanamalize. Malinga ndi Concrete Finishing Guide yofalitsidwa ndi Cement Concrete & Aggregates Australia, ngati pamwamba pa konkire pakhala panyowa (mofanana ndi magazi), madzi amvula amafunika kuchotsedwa kuti apitirize kumaliza. Pali nkhawa zambiri kuti mvula imatha kuchulukitsa kuchuluka kwa simenti yamadzi pakuyikapo, zomwe zimapangitsa kuti pakhale mphamvu zochepa, kuchulukirachulukira komanso kufooka kwapamtunda. Izi zikhoza kukhala zoona ngati madzi sangathe kapena sachotsedwa asanamalize; komabe, kontrakitala wasonyeza kuti sizili choncho pamene njira zothandizira kuchotsa madzi ochulukirapo. Njira zodzitetezera kwambiri ndikuphimba konkire ndi pulasitiki kapena kuyika mvula ndikuchotsa madzi ochulukirapo musanamalize.

Ngati n'kotheka, phimbani malowo ndi pulasitiki kuti muchepetse kukhudzana ndi madzi amvula. Ngakhale izi ndizochita zabwino, kugwiritsa ntchito pulasitiki kungakhale kovuta kapena kosatheka ngati ogwira ntchito sangathe kuyenda pamwamba, kapena pepala lapulasitiki silili lalikulu mokwanira kuti lizitha kubisala m'lifupi lonse la malo, kapena zowonjezera kapena zinthu zina zolowera zimachokera pamwamba. . Makontrakitala ena amachenjezanso kuti asagwiritse ntchito pulasitiki chifukwa imasunga kutentha ndipo imapangitsa kuti pamwamba pakhale kuthamanga. Kuchepetsa zenera lomaliza sikungakhale kofunikira pamilandu iyi, popeza nthawi yowonjezera ingafunike kuchotsa madzi ndikumaliza ntchito yomaliza.

Bolodi yatsopano ikhoza kuphimbidwa ndi pulasitiki kuti iteteze pamwamba pa mvula yamkuntho yosayembekezereka.

Madzi amvula ochulukirapo amatha kuchotsedwa pamwamba pa ma slabs atsopano pogwiritsa ntchito payipi ya dimba kapena zida zina zosalala monga scrapers ndi mapepala otsekera olimba.

Makontrakitala ambiri amavumbula malo ndikuwapangitsa mvula. Mofanana ndi kutuluka kwa madzi, madzi amvula samatengedwa ndi pansi, koma ayenera kusungunuka kapena kuchotsedwa asanamalize. Opanga ena amakonda kukoka payipi yamunda wautali pamwamba pa slab kuti achotse madzi ochulukirapo, pomwe ena amakonda kugwiritsa ntchito scraper kapena kutalika kwaufupi kotsekera thovu lolimba kuti atsogolere madzi pansi pa slab. Zina za grout zimatha kuchotsedwa ndi madzi ochulukirapo, koma izi sizikhala vuto chifukwa kumaliza kwina nthawi zambiri kumabweretsa grout yambiri pamwamba.

Makontrakitala sayenera kuyala simenti yowuma pamwamba kuti azitha kuyamwa madzi amvula ochulukirapo. Ngakhale simenti imatha kuchitapo kanthu ndi madzi amvula ochulukirapo, phala lomwe lingakhalepo silingaphatikizepo pamwamba pa slab. Izi zimapangitsa kuti pamwamba pakhale khalidwe loipa lomwe nthawi zambiri limakonda kupukuta ndi delamination.