Yini enquma isisindo ethile ukhuni?

isisindo Specific izinkuni ingahlalisekanga. Lokhu value incike zohlobo nomswakama. nokuminyanisa kungaba ayahlukahluka ngisho uhlobo olufanayo izinkuni. Ngenxa okukhipha kumathebula idatha uquqaba kuphela. Ekusebenteni, esilinganisweni ukhuni ukuminyana ezomhlaba zihlukile ezinikezwe izincwadi etafuleni amagugu nokuhlela ezinjalo akubhekwa iphutha.

Ithebula ukhuni ukuminyana

Okubalulekile! Ithebula liqukethe idatha ngokusekelwe ukhuni nomswakama izinkomba 12%. Ngokwesibonelo, ingxenye pine ukhuni 520 kg / m ^3.

Kusukela lelo nani kuncike

I kwabantu izinkuni zohlobo uzimisele. Ngenxa yalokho, ibalwa value isilinganiso nesisindo ezithile ukhuni ezivamile okuyinto etholakala ngenxa ucwaningo esisebenzayo amaningi. Phakathi uchungechunge ucwaningo nomunye zohlobo ingatholakala ezihlukahlukayo ukusebenza kwabantu isakhiwo. Empeleni, itafula ngenhla, eqoqwe idatha kwabantu zemithi eqoqwe emithonjeni ehlukahlukene, okubonisa ukuthi kokuhlukana ukusebenza ngokuphelele futhi eyisihlobo isisindo ethize kwezinkuni.

Amaqembu kwabantu izinkuni

Kuvamise ukubala isisindo izinkuni zinhlobo ezahlukene nge lomswakama engaphezu kwengu-12%. Kuyinto isilinganiso normative, owawuthi ugodo uhlukaniswe ezintathu ukuminyana Group:

1. inhlanganiso okuphansi (kufika ku 545 kg / m ^3). Lesi sigaba sihlanganisa: sonwele uphayini, * nomthidari, umsedari, umjunipha, Poplar, Linden, willow, e-aspen, Alder (abamhlophe nabansundu), usika izingcezu azidingayo ngokucophelela amnandi, ziyadliwa (omhlophe, grey, isiManchu), lase-Amur ukhokho.
2. Sredneplotnye (555-745 kg / m ³⁾ amatshe yilezi: larch, yew birch (povisloj, Fluffy, abamnyama, ophuzi), beech (Oriental, European), Elm, ipheya, yebo isihlekehleke somuthi, Maple, hazel, ziyadliwa, Nemisikhamori, mountain ash, Persimmon, apula, umlotha (abavamile, isiManchu).
3. inhlanganiso High (ngenhla 755 kg / m ^3), phakathi awo: ngomuthi birch yensimbi, hornbeam, yebo isihlekehleke somuthi, usika izingcezu azidingayo ngokucophelela, iron izinkuni, boxwood, ephistakhiyo, ostrya.

Isibalo oluboniswa ngezansi idayagramu izinkuni rock ubulukhuni. Amanani ezihanjisiwe okuza.

Njengoba kwabantu rocks ehlangene flammability izinkuni

Inani calorific ngokhuni (Ukushisa amandla value) inqunywa kusukela Inkomba eyinhloko - ethize amandla adonsela phansi kwezinkuni. Lokhu kungenxa okusobala: ayanda kwabantu isakhiwo idwala, ayanda iphesenti equkethwe ndaba ezivuthayo kanye kangcono uphethiloli eshile.

A ukuminyana ngenkuthalo ezisetshenziselwa ukwakha, ukukhetha ukwaziswa ngokomthetho ukwakhiwa kwezindlu, ophahleni uhlelo truss, ukuklama ifenisha, ukuthenga yokubasela ukukhiqizwa.

Ingabe ngaphandle ukhuni ukucutshungulwa imikhiqizo engenakwenzeka. Inkosi uRehobowamu yalahla amapulangwe, isintu ngeke kube khona ngokugcwele. Ngoba ucwaningo olwenziwa ukhuni, kukhona ezibaluleke kakhulu, ngoba sibonga onjiniyela ukuphatha ukwakha amakhaya okuhlala, ukukhiqiza ifenisha eqinile futhi enokwethenjelwa, ukuthenga eliphezulu impahla eluhlaza for Ukushisa amabhizinisi.