Xakamaynta uumiga Polyethylene
Sharaxaada Alaabta
Shirkaddayada, Shanghai Yingfan Engineering Material Co., waa mid ka mid ah hormoodka soo-saareyaasha xannibaadaha biyaha ee polyetylen ee Shiinaha.Waxaan ku siinnaa uumiga polyetylen caag ah oo bikrad ah oo hoos yimaada sariirta shubka ah ama looxa sibidhka gadaasha ama gidaarada hoose ama dhulka hoose.6mil/9mil/10mil/20mil/mil kale oo dhumucdiisuna waxay tahay polyetylen dhumucdiisuna waxay ku jirtaa sahayda.
10 mil polyetylen barrier
20 mil polyetylen oo xannibaad ah
bikrada polyetylenka uumiga
Horudhac uumiga polyetylenka (oo laga soo xigtay wiki)
Xakamaynta uumiga (ama uumiga barrier) waa shay kasta oo loo isticmaalo caddaynta qoyaanka, sida caadiga ah bac ama xaashida bireed, ee iska caabinaysa ku faafidda qoyaanka ee gidaarka, sagxada, saqafka, ama ururrada saqafka ee dhismayaasha si looga hortago uumiga dhex-dhexaadka ah iyo baakadaha.Farsamo ahaan, qaar badan oo ka mid ah maaddooyinkan ayaa ah uun dib-u-dejiyayaal uumiga maadaama ay leeyihiin heerar kala duwanaansho ah.
Qalabku waxay leeyihiin heerka gudbinta uumiga qoyaanka (MVTR) kaas oo lagu aasaasay hababka tijaabada caadiga ah.Hal cutub oo caadi ah waa g/m²·maalin ama g/100in²·maalin.Joogteynta waxaa lagu soo wargelin karaa perms, cabbirka heerka wareejinta uumiga biyaha iyada oo loo marayo walxo (1.0 US perm = 1.0 hadhuudh/foot-foot · inch of mercury ≈ 57 SI perm = 57 ng/s·m2 · Pa ).Xeerarka dhismaha ee Maraykanku waxay u kala saareen uumiga dib u dhigista inay leeyihiin uumiga biyaha ee 1 perm ama ka yar marka la tijaabiyo si waafaqsan ASTM E96 desiccant, ama habka koob qallalan.[1]Alaabta uumi-dejinta guud ahaan waxaa loo kala saaraa sida:
Impermeable (≤1 US perm, ama ≤57 SI perm) - sida warqad kraft ah oo asphalt-taageeraysa, dahaarka elastomeric, rinjiga uumiga celinayo, rinjiga saliidda ku salaysan, daboolka gidaarka vinyl, polystyrene extruded, plywood, OSB;
Semi-permeable (1-10 US perm, ama 57-570 SI perm) - sida polystyrene fidsan oo aan weji lahayn, isocyanurate fiber-weji ah, waraaqo dhisme oo culus oo asphalt-ku-salaysan, rinji ku salaysan cinjir);
La dami karo (> 10 US perm, ama> 570 SI perm) - sida boodhka gypsum-ka ee aan rinji lahayn iyo malaasta, dahaarka muraayadda fiber-ka ah ee aan weji lahayn, dahaarka cellulose, stucco aan rinji lahayn, galka sibidhka, polyolefin spunbonded ama qaar ka mid ah filimada xannibaadaha hawada dibadda ee polymer-ku salaysan.
Xakamaynta uumiga polyetylen: cufnaanta sare ee polyetylen barrier
Waxaan nahay soo saaraha caanka ah ee cufnaanta sare ee polyetylen water barrier ee Shiinaha.Dareemida alaabtayadu way ka hoosaysaa ≤1.0×10-13 g•cm(cm2)•pa.Markaa waxa loo kala saari karaa inay tahay xannibaad uumiga oo aan la taaban karin.Cimrigeedu wuxuu socon karaa in ka badan 70 sano codsigan.Ballaca wuxuu gaari karaa in ka badan 8m, dhererkuna wuxuu gaari karaa in ka badan 800m.
Tilmaamaha
Waxaan nahay soo saaraha caanka ah ee cufnaanta sare ee polyetylen water barrier ee Shiinaha.Dareemida alaabtayadu way ka hoosaysaa ≤1.0×10-13 g•cm(cm2)•pa.Markaa waxa loo kala saari karaa inay tahay xannibaad uumiga oo aan la taaban karin.Cimrigeedu wuxuu socon karaa in ka badan 70 sano codsigan.Ballaca wuxuu gaari karaa in ka badan 8m, dhererkuna wuxuu gaari karaa in ka badan 800m.
cufnaanta sare ee polyetylen barrier
caagagga uumiga uumiga ka dambeeya looxa sibidhka
xayndaabyada uumiga polyetylenka hoostiisa sariirta shubka ah
Cadaynta qoyaanka ah waa qayb aad muhiim u ah ilaalinta qaab dhismeedka dhismaha marka la naqshadeynayo dhismaha.Hantideena dabacsan oo wanaagsan ee aan la dami karin ee xannibaadda qoyaanka polyetylenka ayaa lagu caddeeyey mashruucyo badan oo xannibaadyada uumiga ah ee sagxadda iyo darbiyada mar kale iyo mar kale.
Qiimaha xannibaadda uumiga polyetylen, waxaad kula talin kartaa iibkayaga iyadoo la raacayo aaladda lagu sheekeysto khadka tooska ah ama xiriirka kale.
