Concretes pūkoro: ngā momo, hītori o te putanga me te hōkai o te whakamahi

raima Cellular He rauemi kohatu tāwhaiwhai, arā, o te kaihoko here motuhake, me te mea he plurality o whakakake pūtau shnyh, e e te taurite wehea roto. Na i reira he maha momo o ratou. Hurihurihanga puta i ngā tawhā pērā i te momo o kōpaki, te whānuitanga o te tono, me ētahi atu tikanga o te fakafuofua'i ke.

whakarōpū

Tei runga i te ruruku e wehea raima pūtau ki te momo e whai ake nei - pahuka i raima me te raima aerated, gypsum pahuka me gazogips, magnesium pahuka me hau magnesium, me penomagnezit me gazomagnezit. I roto i te take tuatahi, ko te ruruku ko he sima, i roto i te rua o nga - tiketike gypsum kaha i roto i te toru o - pākeho, a i roto i te wha o nga - wāhanga magnesia.

E ai ki tenei tawhā, kia rite ki te whānuitanga o te whakamahi, kua wehea concretes ki mātao waiariki, me te hanganga, me te waiariki. Ko te hua korero, whakamutunga o pūtau raima (poraka) e te āhuatanga e kaha nui, me te taea te whakamahi mo te hanganga o ngā hanganga kawenga-whanau.

Ki te whakaaro ki te tikanga solidification, i reira te mea he tikanga māori, me te horihori. whakapakeketia te momo tuatahi i raro i te mana o ngā āhuatanga kōhauhau, me te tuarua - e tika ana ki te maimoatanga mamaoa.

Ko te kōrero o

Ko te kōrero hītori tuatahi e pā ana ki te rauemi whare pērā i raima pūtau, tuhia 1889 tau. Na ka ka aerated te pūtaiao Czech Hoffman e d Tāpiri pūhaumāota me tai pākawa waro ki te slurry sima. Nō reira, puta te tauhohenga matū rite ki te hua o nei te hau-effusing. Neke atu i te wa, i ua haapuai te otinga, me te hanganga maiengi i hanga i reira. Rima tau i muri mai Ameliká ko Dyer Aulsvort rite te puehu hau-hanga te whakamahia, arā, o te poke o te konutea, te konumohe, me etahi atu konganuku. Kei te tukua te pāhekoheko o te hauwai, te tākaro i te tūranga o te tāpiri intumescent. Ko tenei tenenga ko te pūtake o te hanga hou o te raima aerated.

hanga takoha nui ki te whanaketanga o te hanga o ngā rauemi hanga i te ihi Huitene o Ericsson. I roto i te 1920, whakaarohia ia ki distend te otinga mā te tāpiri rauemi siliceous me te sima. Pakeke i roto i tenei take e puta i roto i te autoclave i te pēhanga o 8 atmospheres. I muri i taua raima pūtau i roto i tenei ara timata ki te kia hua i roto i Sweden iho, a ka i roto i ētahi atu whenua. Neke atu i te wa, i hanga e matou e rua noa momo. Ko te tuatahi o enei ko te magnesium hau, e tohu ana i te raima ki te hanganga maiengi, i ngā he ranunga o te kotakota me tāpiritanga siliceous. I 1934 i reira ko ano he titiro tuarua - siporex - SOS toyaschy o ngā wāhanga siliceous me Portland sima.

production Modern me te whānuitanga

I roto i te nuinga o raima pūtau (GOST 21520-89) he inaianei e wātea ana i roto i te puka o poraka. E whakaaro ana ratou tetahi o nga rauemi hanga tino noa (me ki pereki uku). Na i runga i te hōkai, he reira tino whānui, no te mea o enei poraka whakaturia mea katoa i taiepa roto noa, me whakamutu ki taiepa kawenga-whanau. Te paerewa poraka rahi ko 600h300h200 mitamano. Heoi, e wātea ana i runga i te tono, me ētahi atu. I roto i te take i reira te kiato o te pereti, ko te iti iho i te rima rau manokaramu ia mita pūtoru, taea te whakamahi i te reira i ara i roto i te puka o te apa wera-te tuuraa i.