Lagu daro la taaban karo oo khafiif ah | Wakiilada Xumbaynta Waxqabadka Sare ee Shabka Gacanta
Heerka nuugista biyaha ee shubka khafiifka ah waa tilmaame farsamo oo muhiim ah si loo cabbiro adkaysiga iyo sifooyinka jireed ee shubka xumbo.
Ku dhawaad dhammaan hababka fashilinta habraaca ee saameeya waarta shubka waxay si dhow ula xiriiraan biyaha, especially light-weight concrete. shubka xumbo leh waa qayb muhiim ah oo ka mid ah sabbaynta, waxaana ka soo baxa macdano ay la socdaan xumbo.
Samaynta xumbo iyo sifooyinka
(1) Sababaha abuuritaanka xumbo waa nidaam kala firdhisan oo aan fiicneyn oo leh gaas sida wejiga kala firdhiyey iyo wejiga adag ama dareeraha sida dhexdhexaadiyaha kala firdhisan. This section mainly discusses the foam where the dispersion medium is an aqueous solution.
shubka khafiifka ah (La taaban karo) waxay soo bandhigtaa khasaarooyinka soo socda ka dib marka la nuugo biyaha:
1. After absorbing water, xoogga shubka khafiifka ah ayaa hoos u dhacaya iyo waxqabadka ilaalinta kulaylka ayaa hoos u dhacaya.
2. Too much water absorption will reduce the adhesion between lightweight concrete and structural layer or waterproof layer (intermolecular ee is dhexgalka u dhexeeya koollada iyo shayga isku xidhan), dildilaaca, godan, iyo delamination dhici doona muddo dheer ka dib.
3. Lightweight concrete can reduce its frost resistance after absorbing water, biyaha badan ee uu nuugo, waxaa ka sii daran caabbinta dhaxan;
4. Waxyaabo kala duwan oo waxyeello leh ayaa u isticmaali kara biyaha sidii side si ay u burburiyaan gudaha shubka. Water carries a large amount of salt-alkali substances dissolved therein, which can make the surface alkalinize, crack and whiten, soo gaabinaysa cimrigeeda adeeg.
Shubka xumbo leh ayaa daldaloolo badan leh, iyo haddii ay xumbo isku xidhan yihiin, way fududahay in la nuugo biyaha. Xawaaraha dhismaha ee ciidda iftiinka xumbo hawo waa mid degdeg ah: kaliya mashiinada fudud ayaa loo isticmaali karaa si loo xaqiijiyo hawlgal toos ah, oo garan kara gaadiidka masaafo dheer ee 800 mitir, culayska shaqaduna waa 150-300M3/maalintii shaqada. Heerka nuugista biyaha ee shubka xumbo hooseeya wuxuu gaari karaa in ka badan 30%. Si kastaba ha ahaatee, haday daloolada xidhan yihiin, ma jiro nuugista biyaha ama heerka nuugista biyaha, Sidaa darteed shubka xumbo waxaa sidoo kale loo yaqaan shubka xumbo-unugyada waagii hore.
Waa wax aan macquul ahayn oo aan loo baahnayn in loo baahan yahay shubka khafiifka ah si aysan u nuugin biyaha gabi ahaanba. Haddii dusha sare uusan nuugin biyaha gabi ahaanba, Hoobiyeyaasha sidoo kale way adkaan doontaa in lagu daro tiirarka lafaha ama dusha sare ee dhagaxa ah ee la taaban karo.
Marka lagu daro sifooyinka shubka fudud laftiisa, heerka nuugista biyaha ayaa la xakameynayaa inta u dhaxaysa 10%-25%; haddii loo isticmaalo dahaarka, heerka nuugista biyaha waa la xakamayn karaa si hoose. Shubid xumbo leh, Waxa kale oo loo yaqaan sibidhka xumbo ama shubka xumbo leh, waa nooc cusub oo ah walxaha dahaarka kulaylka fudud ee la sameeyay sannadihii u dambeeyay. Waxay isticmaashaa sibidhka Portland, walxaha silica firfircoon, dambas duuli, iwm. sida binders inorganic, waxayna isticmaashaa polymerization-ka kulaylka Surfactants waxaa lagu sameeyaa iyadoo la isku darayo xirayaasha organic. Sifadeeda cajiibka ah waa samaynta unugyo xumbo xidhan oo gudaha gudaha ah si ay u noqoto mid khafiif ah oo kulayl leh, si ay u yeelato sifooyinka miisaanka fudud, xoog sare, ilaalinta kulaylka, dahaarka kulaylka, dahaarka dhawaaqa, caabbinta biyaha iyo nuugista shoogga.
Cie-China.org waa hormoodka bixiyayaasha xumbo-samaynta la taaban karo ee bixiya wakiilka xumbo-samaynta, superplasticizer,xoojinta xoogga shubka xumbo ee shubka fudud, CLC blocks. Haddii aad raadinaysowakiilka xumbo, fadlan xor u noqonala soo xidhiidh.