Txhua yam hais txog HDPE: nws yog dab tsi, khoom thiab kev siv

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Geomembrane yog cov yob niaj hnub ntawm cov ntaub ntawv polymeric, lub thickness ntawm 1 mus rau 4 hli. Lawv yog ua los ntawm polyethylene, polypropylene, polyvinyl chloride thiab lwm yam ntaub ntawv nrog ib tug tsawg kawg nkaus thickness ntawm 0.5 hli. Raws li rau nws qhov dav, nws tuaj yeem ncav cuag 7m, thiab qhov ua haujlwm tseem ceeb yog qhov geomembrane yog dej tsis huv. Qhov no nthuav dav qhov kev siv, uas, ntawm lwm yam, yuav tau tham hauv qab no.

Properties

Hnub no, HDPE geomembrane muaj ntau heev, nws yog dab tsi yuav piav qhia hauv tsab xov xwm. Niaj hnub nimno geomembranes raws li polyethylene tuaj yeem muaj textured lossis du nto. Qhov no yuav cia koj coj kom zoo dua ntawm lub sijhawm los xaiv thaum ua haujlwm ib yam. Ntawm cov yam ntxwv tseem ceeb ntawm cov khoom siv no, cov khoom siv dej tsis zoo tuaj yeem pom qhov txawv. Cov ntaub ntawv zoo li no muaj lub cev thiab cov khoom siv kho tshuab siab, uas ua rau lawv universal. Thaum lawv nkag mus rau hauv cov kua, cov txheej txheem diffusion tsuas yog tshwm sim ntawm qib molecular. Los ntawm txoj kev, nws tuaj yeem raug sau tseg tias cov khoom siv tausiv rau hauv kev sib cuag ncaj qha nrog dej haus. Geomembranes yog resistant rau tshuaj, lawv tsis yog-shrinking, saj zawg zog, thiab kuj tsis tawg thiab zoo kawg nkaus tiv taus ntau yam kev cuam tshuam yam tsis tau puas. Cov khoom elongates nyob rau hauv load mus txog 850%, thiab nws tensile zog yuav 26.2 MPa.

Durability

Yog tias koj txaus siab rau HDPE geomembrane, nws yog dab tsi, koj yuav tsum paub tseeb. Cov khoom no tiv taus lub hnub ci hluav taws xob, kub hloov pauv, thiab tuaj yeem siv rau hauv thaj chaw muaj kev puas tsuaj seismically. Nws yog puncture resistant thiab tuaj yeem siv rau ntau yam kev siv. Geomembranes tuaj yeem siv rau hauv txhua qhov chaw huab cua. Yog tias cov kev cai ntawm kev teeb tsa kev tshaj lij tau ua raws, kev pabcuam lub neej ntawm geomembrane tuaj yeem ncav cuag 90 xyoo.

siv thaj chaw

Tsis ntev los no, HDPE geomembrane tau siv ntau zuj zus. Nws yog dab tsi, ua ntej yuav nws, koj yuav tsum nug kom meej. Cov khoom siv no muaj cov yam ntxwv zoo ntawm lub cev thiab tshuaj lom neeg, uas ua rau nws tuaj yeem siv cov kua thiab cov khoom pov tseg hauv kev tsim cov ntxaij vab tshaus impervious, nrog rau cov tshuaj lom. Lub geomembrane tau ua tiav hauv kev npaj ntawm cov dej hauv reservoirs, landfills, manure cia chaw, nrog rau kev tiv thaiv corrosion waterproofing txheej ntawm hlau, qhob thiab lwm yam qauv, thiab nyob rau hauv cov txheej txheem.kev ua haujlwm yuav cuam tshuam nrog cov dej haus. Ntawm kev muag khoom koj tuaj yeem pom ntau yam HDPE geomembrane: Solmax 840, 860 thiab 880. Txhua yam ntawm cov ntaub ntawv no muaj nws tus yam ntxwv ntawm qee qhov ntsuas. Piv txwv li, qhov tsawg kawg nkaus nruab nrab thickness nyob rau hauv thawj rooj plaub yog 1 hli, thaum nyob rau hauv lub thib ob thiab thib peb mob nws yog 1, 5 thiab 2 hli, raws li. Yob loj yog 6.8x238; 6.8 x 159; 6.8x122mm feem rau txhua yam saum toj no.

Density

Qhov ntom ntawm cov khoom hauv txhua qhov peb yog tib yam thiab tuaj yeem pib ntawm 0.926 g / cm². Raws li rau qhov ntom ntawm daim nyias nyias, nws tuaj yeem sib npaug li 0.939 g / cm², qee zaum tus nqi no siab dua. Cov ntsiab lus ntawm soot nyob rau hauv nws yuav txawv ntawm 2 mus rau 3%. Kev ntxhov siab ntawm cov khoom ntawm cov txheeb ze elongation tuaj yeem sib npaug rau 14.7; 22 lossis 29% feem.

Ntxiv nta

Cov kws tshaj lij thiab cov kws tsim khoom hauv tsev siv HDPE geomembrane - nws yog dab tsi, koj yuav tsum nug ua ntej mus xyuas lub khw. Cov khoom no muaj ntau yam zoo, ntawm lawv - versatility, nqi-effectiveness, siab manufacturability ntawm installation, efficiency, thiab ib puag ncig tus phooj ywg. Cov kev ua haujlwm zoo ntawm geomembrane muab qhov kev thov rau kev tsim kho cov qauv rau kev khaws cov khib nyiab ntawm cov chav kawm sib txawv. Xws li geomembranes tau ntse siv hauv toj roob hauv pes thiab hydraulic engineering tsim. Cov khoom siv yog kev lag luam, nws siv txo tus nqi ntawmkev ua haujlwm thiab kev tsim kho. Tsis muaj teeb meem dab tsi hauv cheeb tsam ntawm kev siv, kev siv geomembrane txo cov nqi ntawm kev ua haujlwm, cov khoom siv thiab tso cai rau koj ua tiav qhov project hauv lub sijhawm luv tshaj plaws. HDPE geomembrane tseem muaj npe nrov rau nws cov khoom lag luam siab. Nws nyob rau hauv qhov tseeb hais tias nrog ib tug dav ntawm 7 m, qhov yuav tsum tau rau seams uas ua los ntawm vuam cov cuab yeej yog txo. Yog li, cov craftsmen tsis tas yuav manually xaws cov seams ntawm cov pob qij txha ntawm lub panels.

Geomembrane yog qhov ruaj khov thiab txhim khu kev qha hauv kev ua haujlwm. Cov txheej txheem tau ua tiav, thiab qhov zoo yog nyob rau saum. Ntawm lwm yam, cov khoom yog kiag li environmentally phooj ywg. Nws yog siv nyob rau hauv kev npaj ntawm ib puag ncig tej chaw. Raws li cov kev qhia tshwj xeeb, nws muaj peev xwm lav tau cov rwb thaiv tsev txhim khu kev qha ntawm cov qauv, uas tsis suav nrog kev nthuav dav ntawm cov pa phem.

Daim Ntawv Thov Nta: Theem Npaj

HDPE (polyethylene) yuav tsum tau muab tso rau ntawm lub hauv paus npaj ua ntej, uas yav tas los tshem tawm ntawm pob zeb, khib nyiab, organic thiab lwm yam ntaub ntawv uas tuaj yeem ua rau cov ntaub pua plag puas. Nws kuj tseem tshwm sim tias qhov chaw tsis ua raws li cov cai teev tseg, nyob rau hauv cov ntaub ntawv no nws raug nquahu kom siv cov txheej txheem tiv thaiv, uas muaj cov khoom siv rab koob-punched. Nws yog ib qho tseem ceeb rau kev ntsuas uas yuav tsis suav nrog qhov muaj peev xwm ntawm kev tsim cov cheeb tsam ntawm kev sib sau ntawm cov kua rau saum npoo ntawm txheej txheej.

Cov khoom siv

raws liGeotextile - HDPE. HDPE yuav tsum tau muab tso rau raws li qee txoj cai uas tsis cuam tshuam qhov xwm txheej ntawm cov khoom no. Nws yog ib qho tsim nyog yuav tau pib ua haujlwm tom qab teeb tsa lub phiaj xwm kev teeb tsa. Nyob rau tib lub sijhawm, qhov ntev thiab qhov txheeb ze ntawm cov canvases, nrog rau cov vuam seams, tau qhia meej. Kev teeb tsa kev ua haujlwm yuav tsum tau muab rau kev ua raws li qee cov ntsiab lus, ntawm lawv - cov kev taw qhia thiab cov kab ke ntawm kev teeb tsa, kev tsim cov canvases thiab welds, qhov chaw ntawm cov qauv raws li hom yeeb nkab tawm thiab kev sib txuas rau cov tsev uas twb muaj lawm. Cov nplooj ntawv yuav tsum tau muab tso rau hauv txoj kev uas cov seams tsis hla ntawm ib qho chaw. Qhov kev ncua deb tsawg kawg nkaus ntawm cov ntsiab lus hla yuav tsum yog 0.5 m. HDPE (siab ntom polyethylene - ntawm lub hauv paus ntawm cov khoom) yuav tsum tau muab tso nrog sib tshooj dav ntawm 100 mus rau 150 hli. Nws yog ib qho tsim nyog yuav tau ua raws li txoj cai no nyob rau hauv cov lus qhia transverse thiab longitudinal. Tus kws tsim khoom siv tes ua yuav tsum tau saib xyuas qhov tsawg kawg nkaus ntawm extrusion welds.

Nyob rau txoj kab nqes, cov khoom yuav tsum tau muab tso rau saum toj mus rau hauv qab, siv cov khoom tshwj xeeb hu ua traverses. Txhawm rau txhim kho geomembrane ntawm ntug sab saud ntawm txoj kab nqes, yuav tsum tau muab cov trenches. Yog tias muaj kev xav tau los ntxiv dag zog rau cov geomembrane rau lub pob zeb, ces yuav tsum tau npaj tshwj xeeb fasteners, cov no tuaj yeem yog cov phaj siab thiab dowels, geomembrane strips. Cov yav tas yuav tsum tau txuas ua ntej mus rau lub pob zeb nto nrog dowels. Raws li fasteners tuaj yeem ua thiabembedded qhov chaw.

Vim tswv yim

Txawm li cas los xij koj siv geomembrane - HDPE 1.5 hli lossis lwm yam tuab, vuam ntawm cov seams yuav tsum tau nqa tawm siv cov cuab yeej tshwj xeeb uas tsim cov cua kub. Lwm txoj kev xaiv yuav yog ib qho kub kub los yog ib qho kev sib xyaw ua ke. Qhov kev xaiv kawg tso cai rau koj los ua ob lub seams uas yuav muaj qhov kev sim channel. Tom qab ntawd, nws yuav muaj peev xwm tswj tau qhov zoo ntawm qhov sib koom ua ke welded. Yog tias koj yuav tsum tau ua haujlwm hauv qhov chaw nyuaj mus txog lossis thaj chaw ntawm kev sib txuas lus engineering, ces nws yog qhov zoo tshaj plaws los siv extrusion vuam tshuab.

Siv qhov xaus

Qhov ntom ntawm HDPE, uas tau hais los saum toj no, tej zaum yuav muaj kev txaus siab tsis yog rau cov kws tshaj lij hauv lawv txoj haujlwm xwb, tab sis kuj yog cov kws ua haujlwm hauv tsev uas paub txog kev npaj siv cov khoom no hauv lawv txoj haujlwm. Ntawm lwm yam, tej zaum koj yuav txaus siab rau qee qhov tshwj xeeb ntawm geomembranes. Ntawm lawv, nws tseem tsim nyog hais txog qhov tsis muaj zog nrog kev hwm rau alkalis thiab acids, uas muaj pH nyob rau hauv thaj tsam ntawm 1.5 txog 14. Raws li kev xyaum qhia, kev laus tsis tshwm sim thaum raug thermal, tab sis tus qauv lav rau cov khoom siv nrog nws tus kheej. -ntev yog 75 xyoo.