Mark simenti kapena kalasi? Kodi m'kagulu konkire ntchito yomanga kunyumba kwanu?

kutukula ambiri a nyumba payekha m'gulu konkire, pogwiritsa ntchito liwu monga kalasi konkire. Komabe, chuma ichi nyumba ali khalidwe linanso - kalasi. Ndi chimene chikugwirizana selectivity zotere, ndipo pali kusiyana pakati pa chilemba ndi kalasi?

Concretes ndi ambiri, chosasimbika, zomangira nyumba, ndi ntchito chachiwiri, pambuyo gwero madzi mu dziko. Ndi mwala yokumba analandira chifukwa cha solidification la misa homogeneous osokonezeka mu kufanana zina zigawo zikuluzikulu monga simenti, madzi, fillers ndi / kapena omanga.

Pali chiwerengero mwachilungamo lalikulu concretes osiyana akusiyana mu cholinga ndi mu maonekedwe ndi mtundu wa binder chachikulu ndi fillers - ndi zinthu kucha, ndi matabwa ake. Komabe, ngakhale zosiyanasiyana izi zonse konkire, pali zitatu zoyambirira zokha makhalidwe Mkhalidwe kuti ntchito kuwerengetsera mapangidwe maofesi a tsogolo - mphamvu, madzi kukana ndi kukana chisanu. Kudziwa tochepa ofunika katundu konkire ndi kuyamba lingaliro la mtundu ndi kalasi.

Mwachitsanzo, ankagwiritsa ntchito mu nyumba munthu kwa erection ya maziko osiyana konkire yang'anirani 200 limabweretsa kalasi B 15 ndi chisanu - F75-F100 ndi madzi - W2-W4.

Kumene, choyamba funso onse ukapezeka zimene ali kalasi konkire nanga kusiyana kwake maphunzirowo.

Tiyenera kuyamba ndi kuyamba, makalasi konkire ndi Logos ali yekha mphamvu makhalidwe Komabe, ena nuance mu tiligwiritse ntchito.

Brand mphamvu yovomerezeka n'zosangalatsa kumva index anachokera ku mayesero zasayansi ndi mphamvu compressive. M'mawu ena, mtengo umene Mzimuyo zimene pazipita mawotchi katundu chingathe kupirira lalikulu centimeter pamwamba. Monga simenti amakonda kuwonjezera pa nthawi, mphamvu, mayesero imvera zitsanzo Buku (pulasitala cubes ndi mbali ya masentimita 10) pa zaka kusasitsa wa osachepera 28 masiku. Alipo chizindikiro konkire - mu osiyanasiyana kuchokera M800 kuti M50 (ndi kuwonjezeka kachulukidwe ku kuwonjezeka mu index n'zosangalatsa kumva). Pakuti kumanga munthu si ntchito simenti pamwamba kalasi 400.

Komabe, mphamvu amanena chizindikiro mtengo ndi zasayansi, kuyambira kuchita zingamvekere zifukwa kusokoneza monga chisokonezo luso kupanga, ndi mismatch khalidwe mchenga ndi madzi, ndi kusintha kolowera kuika zinthu. Zonsezi kumabweretsa kuchepa mu makhalidwe mphamvu. Ndipo cholakwa kapena koyefishienti a kusintha ndi Chachikulu kusiyana pakati kalasi konkire pa mtundu wake. Kwenikweni ziri chabe zenizeni mphamvu ndi yaing'ono (5%) kupatuka. Mu mchitidwe kalasi konkire - yofunika mtengo Calculated ntchito (mosiyana ndi chizindikiro) mu kamangidwe ka zomera m'tsogolo. Amayezedwa MPa, ndipo malamulo GOST 26633-85. Okwana pali sikisitini za makalasi mphamvu kuyambira 3.5 kuti 60.

Zotsatirazi Mkhalidwe - madzi kukana ndi chisanu kukana - anawagawira yekha zizindikiro.

Mark konkire, amadziwika chisanu ndi mtengo zasayansi. Akuimira pazipita n'zosangalatsa kumva chizindikiro zedi mayeso amene nyemba chinaperekedwa ku amaundana-m'firiji pamtunda. Frost eyiti zizindikiro anatsimikiza mu osiyanasiyana 50 F kwa 500 F.

Wina Mkhalidwe khalidwe - kalasi konkire pa madzi kukana. Kwa olemba a kumatira ntchito sukulu asanu kuyambira 12 W kuti W2, ndiwo phindu pazipita kuthamanga madzi pa zomwe zitsanzo kutchulidwa sangathe pochitika madzi (phunziro kwa zinthu muyezo magazi mosaumilizidwa).