The yawa na kankare

Kankare da wani wucin gadi gini abu, samu da kullum, da kuma m solidification tunanin mutuntaka zaba da kuma compacted cakuda. Ya kunshi ciminti ko wasu nauyin kayan, kazalika da lafiya da kuma m aggregates da Bugu da kari na ruwa. A wasu lokuta, inda musamman bukatar da yawa na kankare, misali, kwalta kankare fasahar, ruwa ba kara da cewa, da kuma yin amfani da musamman Additives.

Its main abũbuwan amfãni ne tsabtace muhalli, kazalika da samuwar wata babbar albarkatun kasa tushe. Yana yiwuwa a yi amfani da shi a cikin daban-daban aiki yanayi. Yana za a iya kira wani m kayan da aka yi amfani a baje a dukkan fannoni, da sassa na yi. Shi ne chemically da zafi resistant, sauti-mamaye kuma ba ya gudanar da makaman nukiliya radiation.

Hadawa da yashi, siminti, ruwa da tsakuwa damar samu da ake so yawa daga cikin kankare. A rabo zai dogara ne a kan danshi abun ciki na yashi da tsakuwa, ciminti sa da kasarun adadi. A wasu lokuta, shi zai shafi adadin da abun da ke ciki na Additives :. Ruwa repellents, plasticizers, da dai sauransu Alal misali, don samun da yawa daga kankare M200, amfani da sumunti sa 400.

Daya muhimmanci halayyar wannan abu ne ruwa-ciminti rabo. Akwai kai tsaye dogara da ruwa / sumunti. Wannan ne, da ƙananan rabo, da karfi da kankare. A abu da ciwon yawa na 200, yana da wani babba taro (cewa shi ne ta kawai "net"). Yana kai 2400 kg / M3. Wannan shi ne mai girma domin kankare load-qazanta Tsarin, ginshikan, crossbars, da dai sauransu Too kananan adadin na ruwa da yawa daga kankare ne high kuma shi yana da low plasticity. Ana amfani da tushen kayan aiki, makafi yanki kusa da gidan da sauransu.

Akwai daya kuskuren da sau da yawa sa a lokacin da hadawa da mafita. A handicraft masana'antu ne sau da yawa kara zuwa wani wuce kima adadin ruwa, wanda rage yawa daga cikin kankare kuma qara da motsi. Wannan bi da bi ƙwarai rage ƙarfi.

Kankare na da rarrabuwa, wanda aka yi a kan manufar, iri fillers da binders, curing yanayi, da kuma tsarinta. By saduwa, za ka iya zaɓar al'ada (ga} ungiyoyin da kuma masana'antu da gine-gine) da kuma na musamman (aikin gina hanya, thermal rufi, hydro kuma Popular aiki) kankare.

By irin m shi ne plaster, silicate, sumunti, shlakoshchelochnyh (kwalta, ko plasto- polimernbeton). Siffofin ta aggregates ne ma daban-daban: porous, m da kuma takamaiman, da kuma abinda ke ciki - na fata, da mai da kuma kayayyaki. Har ila yau, da tsarin zai iya zama mai kankare m, porous, saƙar zuma da kuma manyan rami. curing yanayi da ake biyowa: halitta, tururi curing a karkashin yanayi matsa lamba ko wani autoclave.

Babban nuna alama a cikin halaye na kankare - ne ta compressive ƙarfi. Yana ma'anar kankare aji. Alal misali, da yawa daga cikin kankare B25. Wannan yana nufin cewa 95% na wannan aji zai gagara a matsa lamba na 25 MPa. Wannan shi ne, harafin "B", kuma Figures nuna matsa lamba cewa zai iya tsayayya da kankare a megapascals. Kirgawa nuna alama ƙarfi ne, shi ne ake bukata don la'akari da dokokin dalilai compressive ƙarfi. Shi ya dace don kankare yawa B25. Age na kankare cikin sharuddan da aji, za a ƙaddara da compressive ƙarfi kuma axial tashin hankali, wanda aka sanya wa wani zane mataki. Da ake dauka la'akari da hanyoyin da yi da kuma zane lodi a kan tsarin da kuma yanayi na kankare hardening.

Da yawa daga cikin kankare 25 ne manufa domin bene slabs, m harsãshensa, akussa daruna. Wannan mafi yawan amfani da kayan na wadannan dalilai. Bugu da kari, da yin amfani da irin wannan abu magina da kuma da sauran fannin jiki alhakin makõma take. kankare yawa na 25 na tabbatar da kyau kwarai inganci na ƙãre Tsarin, bayar mana cewa sayi samfur ne Mafi m tare da buga bayani dalla-dalla.