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Ko te kaha o te raima, me te tahi atu ona painga

tīmata matou hoki te wā tuatahi i runga i te raima korero i roto i ngā rau tau mua tawhiti. Heoi, i roto i tenei wā wa te rauemi, me te tahi atu hua hanga, kua haere i te reira i roto i te ara roa o te faafariuraa.

I kitea te raima tuatahi e whaipara i runga i nga pareparenga o te Danube i Yugoslavia i 5600 BC I a hanga tenei rauemi hanga o te kirikiri me te kotakota whero rohe.

I teie mahana, i raro i raima ki te kia mohio ki rauemi kohatu horihori, i hanga nei e solidifying he ranunga pai whakaohokia o wai, me te töpü pokepoke, me a pai, e kua riro ki pūkete ki te tetahi rahi.

raima kaha

Ko te āhuatanga tino nui o te raima ko tona kaha. He huinga o te kaha raima tei runga i ngā āhuatanga maha. Kei roto i te tukanga hydration rawa ano o rua ngā wāhanga:

  1. Mahino'i. pumau tenei wā e pā ana ki te ra. Tei nui i runga i te pāmahana. Ko te kupu, hei tauira, i te pāmahana o neke atu i te 20 nga nekehanga, mo te whakanoho raima Me toru haora. Ki te he kore te pāmahana, na ka muri tenei wā 15-20 haora.
  2. Pakeke. tīmata tonu tenei wāhanga i muri i nga kaupae o mua, me te pumau mo te maha o nga tau.

I roto i tetahi take, kia tuhia te reira e te huinga o te kaha raima e wahi anake, ki te reira he makuku. Ko te kaha o te hanganga raima iho, a te tikanga faarahi tika ki te pāhekoheko o tenei rauemi ki te wai.

Ko reira tika hoki ki te tango ki pūkete te meka e iri te huinga o te kaha raima i roto i te wera, me te makariri rangi. reira i te mea i te nui pāmahana tika ringihia raima tūtohutia cover taratara mākū ki te ārai i te whakaetonga wai. Tōraro taua mata whanonga pāmahana ki mīti o te wai, i te mea wahi o te ranunga raima. I roto i te take o pai tukanga pāmahana hydration tonu, Heoi, ki tenei wāhi, tenei āhuatanga hoahoa ma'ihia, tae atu i te kaha o te raima. Hoki tenei take, tohunga tūtohu tāpiri i roto i te tukanga o te faaineineraa o te raima otinga o te taonga motuhake.

piha kaha raima

Ko te tohu raima matua ngā:

  1. Ko te piha haapiiraa raima o kaha i roto i te take o te kōpeketanga axial.
  2. Ko te piha haapiiraa raima o kaha i roto i te take o te axial totoro.

He maha ngā akomanga o te raima, te hunga matua ko:

  • Mark otinga raima, i runga i te huka rānei. whakamahia tēnei ranunga i roto i te hanganga o ngā whare e E whai wāhi ana tētahi Kangatari me te hukapapa.
  • Mark otinga raima, i runga i te ātete te wai rānei. tono ana tēnei hanganga e i roto i te hanga o te tipu huringa, puna kaukau, awa, me te pera i runga i.

Ko te whakamahi o te raima

Tei runga i te tawhā hangarau, me te ōhanga, ki te hanga hanganga ia te kōwhiringa o te piha haapiiraa e hiahiatia ana me te kōeke o te huinga raima kawea i roto takitahi. Ko te kaha o te raima i roto i tenei take e whai wāhi nui. Tohunga tūtohu hoki rauawa raima, momo tokotoko whakamahia raima o te piha haapiiraa i te iti rawa B-15. No te haurangi me tīwae he pai ki te whakamahi i te piha haapiiraa i te raima B-20-B-30. No te papa me kurupae pai Class Concrete B-15.

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