Claydite: thermal conductivity, Njirimara na nkọwa

Gbasaa ụrọ, thermal conductivity nke a na-n'ụzọ dị ukwuu kpebisiri ike site na ngwaọrụ, nwere nwekwara a ala kpọmkwem ibu na elu ike. Àgwà ndị a ime ka a ọtụtụ ebe na eji nke a na ihe onwunwe na-ewu.

thermal conductivity

N'ihi na ndị ihe na-e-arụ nchekwa ọrụ, ihe kwes conductivity e ji mara dị mkpa karịsịa. Gbasaa ụrọ-eme dị ka a eke ihe, nke bụ ihe mere nke a oke na-adabere na a ọnụ ọgụgụ nke àgwà.

Kiet ke otu akpa ọka size kwesịrị ekenyela. The ebube karị ga-a nta, nke ukwuu mkpa ka mkpuchi. The porosity na mmiri ọdịnaya nke gbasaa ụrọ, kwa, ga-emetụta ndị thermal conductivity. The nkezi ọnụọgụ nke thermal conductivity bụ ike ikpebi n'ihi na e nwere ọtụtụ ọdịiche. Gbasaa ụrọ, nke thermal conductivity na akwụkwọ akwụkwọ kpọmkwem na nso nke 0,07 W / m, elu hygroscopicity. Ma, ọ ga-adị mma na-ezo na kacha uru nke thermal conductivity - ọ esịmde 0,16.

Ọ dị mkpa ka na-ahọrọ nri ihe. Ọ bụrụ na ihe kwes conductivity dị elu, ego nke okpomọkụ nke na-aga site na insulator oyi akwa bụ nnukwu. Nke a na-egosi na okpomọkụ na ọta na-lowered. Ga-akwụ ụgwọ ntị na-na porosity nke gbasaa ụrọ, nke na-emetụta ndị njupụta na thermal conductivity. The elu ga-akpa nhọrọ, ala ga-abụ onye ikpeazụ abụọ.

Gịnị na-emetụta isi ihe e ji mara nke gbasaa ụrọ

Studies gosiri na ihe kwes conductivity nke gbasaa ụrọ kpebisiri ike site na-anọghị nke quartz, ma ọ bụla e nyere mmepụta ogbo. Technologists ga-gaa na akaụntụ akpan akpan mmepụta. Mgbe niile dị na Leca silica mma thermal conductivity, mgbe ọzọ oxides belata uru.

Nke a na-adịghị emetụta na gas kpụrụ n'oge kpo oku ka puffing okpomọkụ. Ọ na-hụrụ na ọ bụrụ na pores ẹdude ke H ₂ + CO na ego dị ukwuu karịa 55%, ihe kwes conductivity nke gbasaa ụrọ ga-2 ugboro elu karịa ma ọ bụrụ na ùjú ga-ikuku. Na thermal conductivity pụrụ imetụta ọbụna micropores. The nta ha, ala ga-thermal conductivity, ma porosity nke a akparamagwa na-adịghị emetụta.

Key Njirimara

Gbasaa ụrọ, onye thermal conductivity e kwuru n'elu, nwere ụfọdụ Njirimara, n'etiti ha:

• elu ume;
• ntu oyi;
• anwụ ngwa ngwa;
• ọkụ na-eguzogide;
• ezigbo itule nke àgwà na-eri.

Ịtụle ihe onwunwe, otu onye nwere ike ịmata ihe dị iche mma mkpuchi àgwà, acid-eguzogide ma na chemical inertness. LECA a na-ewere a eke ihe onwunwe na bụ environmentally friendly thermal insulator.

Key atụmatụ

Concrete ngọngọ, ihe kwes conductivity nke dị mkpa iji na-amụta tupu nnweta nke ihe a nwere àgwà ndị magburu onwe. Ọ na-mere nke shale na ụrọ na kwesịrị ekwesị n'ihi na environmentally friendly na oge a na-ewu.

Mee ihe ngọngọ na ndị ọzọ maka ji achọ nzube, ma n'ụlọ o kwesịrị ekwesị ka n'idozi nsogbu nke na-eto eto ubi. Na nke a na ihe onwunwe enwe ike iwepụ ihe mụbara mmiri evaporation, nke na-enyere aka ịchịkwa mmiri itule osisi.

technical e ji mara

keramzita ọnụọgụ nke thermal conductivity na-setịpụrụ ala ụkpụrụ 9757-90, nakwa dị ka ndị ọzọ oru nkọwa, ha kwesịrị ekenyela n'etiti fractional mejupụtara. On ire i nwere ike ịhụ ihe na atọ ụmụ irighiri ihe:

• 5-10;
• 10-20;
• 20-40 mm.

Otu ekwesịghị ichefu banyere ọzọ udi nke ụmụ irighiri ihe, nke na-nnọọ adịkarịghị eji na-ewu ọrụ. Ndị a gụnyere gravel na gbasaa ụrọ pellets onye akụkụ mbio 2,5 10 mm. Ọtụtụ mgbe mgbe ịzụrụ a n'ji bụ mmasị na a nnukwu njupụta nke 7 ka ụkpụrụ omume nke ụdị na a nke:

• 250 kg / m ³ - 250 ika;
• si 250 na 300 kg / m ³ - stampụ 300;
• analogously - ika 350, 400, 450, 500, 600.

N'ihi na izugbe ire abụọ na-esonụ ụdị bụ adịghị, ha na-mere naanị na ịchọ ndụmọdụ ndị ahịa. Gbasaa ụrọ, àgwà, thermal conductivity, nke na-kwuru na isiokwu, na kwesịrị mmasị n'ji nwere a akpan akpan compaction ruru, nke a na-achikota n'otu n'otu, ma uru adịghị aka 1,15. Otu ihe dị mkpa oke na-ekpebi na omume nke na-amụba ụrọ mgbe ọ gụrụ mmiri, bụ mmiri absorption. Ọ nwere ike ịdị iche iche site 8 na 20%.

Tụnyere nke thermal conductivity nke gbasaa ụrọ na ụfọdụ ndị ọzọ ihe

Gbasaa ụrọ, thermal conductivity (Comparison a ji mara na ngwaọrụ ndị ọzọ na-ga-mụụrụ tupu n'ịrụ nhọrọ nke ihe onwunwe) nke esesịn e kwuru n'elu, a na-họọrọ site na-eji ọkụ ịnweta ajị ma ọ bụ gbasaa perlite. Ke akpa idaha, na ọnụọgụ bụ 0,04, nke na-egosi na maka otu ọkpụrụkpụ nke ajị ga hapụ obere okpomọkụ tụnyere gbasaa ụrọ.

Ọzọ ọzọ - ọ na-gbasaa perlite. Ya mmiri absorption ala karịa gbasaa ụrọ bụ naanị 5%, ebe thermal conductivity nke naanị 0,04.

Gbasaa ụrọ, Njirimara, thermal conductivity, nke na mgbe ụfọdụ ka ya e nweghi ihe yiri ihe na ọrụ, mgbe ụfọdụ ọbụna na tụnyere vermiculite. Ọ bụ ihe kasị mma nhọrọ, nke ga-anọchi ihe ngọngọ, na-emepụta si n'oké nkume, na-eme ya environmentally friendly. Kwes conductivity nke gbasaa vermiculite bụ 0,08, nke 2 ugboro obere tụnyere na-ịnweta owu. Ọ bụrụ na ihe a na-eji, ọ bụ omume na-etolite a mkpa oyi akwa nke backfill, nke ga-Ibu Ibu yitewere obere. Ọ bụ kwuru na itinye a mkpuchi nwere ike ịbụ na-dị ka ihe ndabere maka agbatị.

ọgwụgwụ

The thermal conductivity-eme dị ka otu n'ime ihe dị mkpa e ji mara nke gbasaa ụrọ. Ma ọ bụ ukwuu onwe ha nke mode nke mmepụta. Ọ bụrụ na ị na-eji ot technology ịgbanwe àgwà nke gbasaa ụrọ na-karịsịa na-arụ ọrụ. Otú ọ dị, ngwa nke oge a na usoro nke ụdị co-firing usoro ma ọ bụ ductile omume dịkwuo-egbochi ihe Njirimara nke gbasaa ụrọ.