Simenti-mchenga screed

Kodi pansi screed amadziwa aliyense, koma aliyense akumvetsa kufunika kwake. Izi wosanjikiza wapakatikati ndi kuuluka kwa kumaliza pansi, luso la pamwamba ❖ kuyanika ndi moyo kumadalira. Agwirizane maziko a mwala, njerwa ndi simenti, pamene kusiyana msinkhu ndi 20 mpaka 60 mm, ntchito simenti-mchenga screed. Ndi izo amalenga kwa m'munsi unit wa mitundu yosiyanasiyana ya chophimba pansi.

ubwino

N'zochititsa chidwi bata ndi ❖ kuyanika simenti pansi madzi, mafuta mchere, mankhwala ndiponso ndi zinthu zina. Specific pazipita kuthamanga amene simenti-mchenga lumikiza akhoza kulimbana ndi 600 N / sm.kv .. Angagwiritsidwenso mosavuta kunyamula pafupifupi magalimoto mwamphamvu ndi matayala mphira. Koma mmene, ndiye amakhala ndi kusapezeka tchipisi iliyonse chinthu kugwa yolemera makilogalamu osachepera atatu. Chifukwa cha katundu izi zingagwiritsidwe ntchito kuchita zikulumikizana m'maofesi, nyumba ndiponso malo, malo malonda ndi mafakitale.

kapangidwe

Simenti-mchenga screed tichipeza popanga mfundo zotsatirazi:

- ang'ono kachigawo mchenga;

- simenti (zambiri Portland simenti);

- modifiers (plasticizers owongolera osiyana shrinkage);

- spetsnapolniteli.

Chifukwa cha zolimba mwa fiberglass, inu angaiwale za kulimbitsa mwachizolowezi za rebar pansi zitsulo. Ponena za kusintha adjuncts, chifukwa ntchito zawo za kusintha makhalidwe a osakaniza physico-mankhwala, ndi kumawonjezera ozizira kukana ndi ductility screed.

Kuwonjezera plasticizers kumathandiza kuchepetsa madzi m'thupi ndipo peelability grout, kuchepa mlingo hydration imaperekanso atakhala simenti oipa pa siteji koyamba, umene analandira kwambiri homogeneous ndi bwino kapangidwe grained. Simenti-mchenga screed zochokera simenti Portland akhoza adamulowetsa monga kumatira ndi odana ndi dzimbiri wosanjikiza. Adzateteza maziko konkire.

makulidwe

Screed pansi Kutentha sayenera n'kakang'ono kuposa masentimita 5; ngati alipo zikuchokera plasticizers, si zosakwana 3 cm. Pamene inu mumachita pa m'dera lonse ayenera kugwiritsa ntchito mayunitsi wapadera, ntchito zomwe zimalimbikitsa kuchepetsa kwambiri nthawi komanso khama. Pali zifukwa zingapo kulimbikitsa makulidwe a screed:

- pamaso pa kutchinjiriza wosanjikiza;

- mlingo wa kusalala kwa m'munsi ndi;

- mtundu wa yazokonza pansi.

kutchinjiriza matenthedwe

Iwo anaphedwa zipangizo wandiweyani angathe katundu monga ubweya mchere kapena kukodzedwa polystyrene. Ntchito screeds mchere ubweya kachulukidwe ayenera kukhala osachepera 150-170 makilogalamu / m³, ndi osalimba a styrofoam ndi -. Osachepera 35. Various zokutira zitsulo embankment (thovu galasi, perlite, penolistirol), galasi ntchito simenti, amene anapanga pa joists. Kukodzedwa dongo zinyalala angagwiritsidwe ntchito, koma poyerekeza ndi polystyrene, ndi sakhala ogwira kutchinjiriza, ndi kupeza chiŵerengero zofunika kuchita za 30 cm backfill.