Simenti - makamaka luso

Chomangira lamba ndi penipeni pa yazokonza pansi. ntchito yake malinga ndi kufunika agwirizane pamwamba pansi pamaso pa mapeto kokha. Komanso coupler m'munsi cholinga kuphunzitsa anakonzeratu ndingaliro ngodya ndi masking zofunikira zosiyanasiyana. Komanso, amapereka pamwamba digiri kofunika chinthu chimodzimodzi ndi nthawi kutentha kwake mayamwidwe. Screed akhoza zakhala zikuzunza m'miyoyo mwachindunji padziko m'munsi pansi, ndi zigawo zosiyanasiyana wothandiza. Mwachitsanzo, mu kutchinjiriza matenthedwe kapena lamayimbidwe.

Ambiri ntchito panopa ali ndi simenti monga njira yotsika mtengo ndi yodalirika ya kusalaza pamwamba m'munsi pansi. Maziko a mtundu wa screed ndi Portland kupanga (hayidiroliki simenti binder kupanga chisakanizo cha kashiamu silicate) ndi kupanga aluminate. Monga filler, ndipo amagwiritsidwa ntchito zigawo mchenga kapena miyala.

Simenti ayenera makulidwe a zosachepera makumi atatu millimeters, mwinamwake chiopsezo chachikulu cha delamination kuchokera pamwamba. wathunthu kuyanika nthawi m'munsi mtundu wa yazokonza pansi pafupifupi masiku makumi awiri ndi asanu ndi atatu. Koma inu kukathera ndi mwangwiro yosalala ndi cholimba kwambiri padziko.

Zida screed ali zina zenizeni. Pofuna kupewa zina akulimbana ndi ukuchoka kuumitsa tayi ngati muzichita zinthu chinyezi mkulu. Chifukwa chaichi, yosakongola screed kwa masiku asanu kubisala polyethylene filimu, pambuyo kuchotsa nyemba zomwe tikulimbikitsidwa kuti adzaze ndi utuchi yonyowa pa nthawi tsiku asanu madzi nthawi zonse ndi madzi. Simenti, imene umagwiritsidwa ntchito njira ngati chipangizo pambuyo kuyanika adzakhala ndi ntchito zabwino ndi durability.

Malire chapamwamba padziko yomalizidwa m'munsi ayenera kukhala pansi pa mlingo wa pansi pa makulidwe anafuna opunthira chophimba. The screed chomwecho yaikidwa pa wapadera majachnym njanji yomweyi, amene cholinga kupereka mwangwiro lathyathyathya pamwamba. The imeneyi pakati n'kupanga ayenera pafupifupi mita. Zapatsogolo anakonza matope wogawana anaika pakati pa njanji. Pambuyo kuwayika ankayatsa molondola yotengedwa, ndi danga litasamuka ladzala ndi yankho ndi angaimbidwenso.

Njira ina kusalaza pamwamba pansi - youma simenti. Iwo akadali si ambiri, ngakhale zotsukira, mofulumira ndi zochepa ntchito kwambiri. Mfundo youma chochuluka pansi lakhala likugwiritsidwa ntchito kwa nthawi yaitali. Koma posachedwapa, mu kuwala kwa zikamera wa watsopano, zipangizo ndi wotsika mtengo njira imeneyi ndi kukhala wokongola kwambiri ndi malonda.

Mfundo chipangizo cha mtundu tayi limapangidwa kuwonjezera simenti slurry ulusi polypropylene, amene uniformly anagawira mu osakaniza kumalimbikitsa pa buku lonse, amene kwambiri amachepetsa shrinkage microplastic ndiponso kupewa mapangidwe ming'alu pa solidification.

Chotero coupler ali madalitso ochuluka ndiponso zabwino, lomwe ife anganene liwiro ntchito chake wotsika Kuvuta, mofulumira kuyanika ndi shrinkage kochepa.