TL;DR — Cov Ntsiab Lus Tseem Ceeb
- ASTM D7032 xav tau tsawg kawg yog 28 MPa flexural zog rau WPC deck boards; cov neeg teev tseg kho qhov no ua lub rooj vag dhau / tsis ua tiav rau cov haujlwm pas dej ua lag luam.
- Kev ntsuam xyuas qhov khoov thiab rub tawm ntawm cov khoom siv khi hauv qab D7032 ua pov thawj tias cov laug cam yuav tsis sag lossis xoob thaum muaj rooj tog hauv pas dej thiab cov khoom thauj neeg taug kev.
- Kev nqus dej noo yuav tsum nyob qis dua qhov ntsuas tus qauv; cov profiles co-extruded zoo li YD140RH23 muab kev tiv thaiv dej zoo dua li cov profiles qub xws li YD150RH30.
- Kev tiv thaiv kev plam (coefficient of friction) thiab UV xim-fastness yog cov khoom kuaj xyuas uas tsis tuaj yeem sib tham tau rau txhua qhov kev qhia tshwj xeeb ntawm pas dej ua ke.
- Cov ntawv qhia txog kev kuaj xyuas los ntawm SGS thiab cov ntaub ntawv kuaj hauv chaw kuaj mob sab nraud yog cov ntaub ntawv qhia txog txiaj uas cov neeg teev tseg ua ntej pom zoo rau daim ntawv xaj yuav khoom 1,000 sqm.
- Txij li xyoo 2010 los, Ydwpc tau tsim cov khoom siv WPC uas ua raws li ASTM D7032, thiab muab kev pabcuam rau cov pas dej ua lag luam thiab cov chaw so hauv Tebchaws Europe, North America, thiab Southeast Asia.
1. Vim li cas ASTM D7032 Yog Tus Txheej Txheem Gatekeeper rau Kev Ua Lag Luam Pas Dej Ua Si
ASTM D7032, luam tawm los ntawm ASTM International, ua haujlwm ua tus qauv tseem ceeb rau North American thiab kev yuav khoom WPC thoob ntiaj teb. Tus qauv no tau tsim los vim tias kev loj hlob sai ntawm cov khoom sib xyaw ua ke thaum ntxov xyoo 2000s tau tsim kom muaj qhov tsis zoo: yog tsis muaj cov lus qhia sib koom ua ke, cov neeg qhia tshwj xeeb tsis muaj txoj hauv kev txhim khu kev qha los sib piv cov khoom los ntawm ntau lub tuam txhab tsim khoom. ASTM D7032 tau sau qhov sib txawv ntawd los ntawm kev txhais cov qhab nia kev ua tau zoo tsawg kawg nkaus rau lub zog flexural, rub tawm ntawm cov khoom siv, kev tiv thaiv nkag, kev ruaj khov UV, kev nqus dej noo, thiab kev ruaj khov ntawm qhov ntev.
Rau cov pas dej ua lag luam, qhov kev pheej hmoo siab dua li cov ntawv thov hauv tsev. Ib lub pas dej ua lag luam hauv tsev so lossis chaw so yuav pom 500 txog 2,000 tus neeg ib hnub thaum lub caij siab tshaj plaws. Cov rooj zaum, cov rooj zaum ntev, cov khoom siv log, thiab kev raug tshuaj lom neeg los ntawm cov chaw muaj chlorine lossis dej ntsev ua rau muaj kev ntxhov siab thiab kev ntxhov siab uas lub pas dej hauv tsev yeej tsis tau ntsib. Yog li ntawd, cov neeg tshwj xeeb siv ASTM D7032 ua cov lim dej ua ntej kev tsim nyog: yog tias cov khoom tsis tuaj yeem ua raws li kev cai, nws raug tshem tawm ntawm kev twv ua ntej kev sib tham nqi pib. Qhov no yog vim li cas txhua qhov loj Chaw Tsim Khoom Wpc luam tawm cov ntaub ntawv xeem D7032, thiab yog vim li casYog tau ua cov ntawv qhia txog kev xeem SGS ntawm cov neeg thib peb muaj rau txhua pawg khoom txij li thaum nws tau tsim tsa hauv Ningbo xyoo 2010.
Lub zog flexural 28 MPa uas tau teev tseg hauv D7032 yog qhov tseem ceeb tshwj xeeb rau cov pas dej ua ke. Lub zog flexural - lub peev xwm ntawm lub rooj tsavxwm los tiv taus kev khoov thaum lub nra hnyav - txiav txim siab ncaj qha tias cov joists tuaj yeem sib nrug deb npaum li cas, qhov hnyav sib xyaw ntawm lub lawj tuaj yeem dais tau ntau npaum li cas, thiab seb cov laug cam puas yuav tsim kev hloov pauv mus tas li dhau sijhawm. Tus neeg qhia tshwj xeeb uas ntsuas qhov kev txiav txim ntawm 1,000 sqm pas dej ua ke yuav piv txhua yam khoom sib tw nrog tus lej no ua ntej, vim nws txuas txhua qhov kev suav engineering downstream. Cov khoom uas ua tau raws li lossis tshaj 28 MPa tuaj yeem teev tseg nrog kev ntseeg siab ntawm tus qauv 400 hli joist chaw; cov uas poob luv luv xav tau qhov sib nrug ze dua thiab tus nqi substructure siab dua.
2. Nkag Siab Txog Qhov Yuav Tsum Tau Ua Kom Muaj Zog 28 MPa
Lub zog flexural, tseem hu ua modulus of rupture (MOR), ntsuas qhov kev ntxhov siab siab tshaj plaws uas WPC board tuaj yeem tiv taus ua ntej nws tawg hauv kev sim khoov. ASTM D7032 cov ntaub ntawv siv ASTM D790 ua tus txheej txheem txheej txheem. Hauv kev xyaum, ib qho qauv ntawm lub rooj tsavxwm deck raug muab tso rau ntawm ob qho kev txhawb nqa, thiab ib qho kev thauj khoom raug siv rau ntawm qhov chaw kom txog thaum cov qauv tsis ua haujlwm. Tus nqi kev ntxhov siab tshwm sim, qhia hauv megapascals (MPa), yog cov khoom lub zog flexural.
Qhov tsawg kawg nkaus 28 MPa hauv ASTM D7032 qhia txog qhov tsawg kawg nkaus ntawm kev thauj khoom uas xav tau rau lub rooj tsavxwm deck kom txhawb nqa qhov hnyav ua ke ntawm kev taug kev, rooj tog, thiab cov khoom siv kho qee zaum ntawm qhov sib nrug ntawm tus qauv joist. Rau cov ntawv thov pas dej ua lag luam, cov neeg tshwj xeeb feem ntau ntxiv qhov kev nyab xeeb, thov 30 MPa lossis siab dua los suav nrog cov khoom thauj dynamic los ntawm cov neeg coob coob thiab cov khoom siv pas dej ua ke ntawm lub log. Ydwpc's YD150RH30 classic decking profile sim tas li saum 28 MPa hauv SGS-accredited laboratory testing, thaum YD140RH23 co-extrusion profile, nrog nws cov polymer cap txheej tuab, xa cov kev ua tau zoo flexural ntawm qhov kawg sab saud ntawm WPC ntau yam.
Rau ib tus neeg tshwj xeeb uas xaj 1,000 sqm ntawm pas dej ua ke, tus lej ntawm lub zog flexural kuj tseem tsav kev lag luam ntawm joist spacing. Lub rooj tsavxwm ntsuas ntawm 28 MPa yuav xav tau 350 hli ntawm qhov chaw nruab nrab joist spacing nyob rau hauv cov xwm txheej thauj khoom lag luam, thaum lub rooj tsavxwm kuaj ntawm 32 MPa feem ntau tuaj yeem teev tseg ntawm 400 mm. Tshaj 1,000 sqm, qhov sib txawv 50 hli ntawd txhais tau tias qhov ntsuas tau txo qis hauv cov khoom siv joist thiab kev ua haujlwm teeb tsa. Qhov no yog vim li cas cov neeg tshwj xeeb ntse sib piv cov nqi xeem tiag tiag thiab suav nrog lawv rau hauv tag nrho cov qauv project. Ydwpc muab cov ntawv pov thawj xeem flexural tiav nrog txhua qhov kev xa khoom los txhawb qhov kev tshuaj xyuas no.
3. Kev Hloov Pauv: Vim Li Cas Kev Ua Haujlwm Mus Ntev Tseem Ceeb ntawm Pas Dej Ua Si
Thaum lub zog flexural qhia rau tus neeg teev tseg tias lub rooj tsavxwm tuaj yeem tuav tau ntau npaum li cas thaum lub sijhawm ua tsis tiav, qhov kev hloov pauv ntawm qhov nkag mus qhia txog qhov tshwm sim hauv qab cov khoom thauj mus los ntau lub hlis thiab ntau xyoo. ASTM D7032 suav nrog cov kev cai kuaj qhov nkag mus vim tias cov ntaub ntawv WPC yog viscoelastic: lawv deform qeeb thiab maj mam nyob rau hauv kev ntxhov siab tas li. Ntawm lub pas dej ua lag luam, qhov kev ntxhov siab no los ntawm cov khoom siv tas mus li - cov thawv cog ntoo, cov ntaiv, cov rooj zaum ruaj khov, cov khoom siv pas dej ua ke - thiab los ntawm kev taug kev ntau thaum lub sijhawm ua haujlwm.
Qhov kev sim D7032 creep test yuav ua rau cov qauv ntawm lub rooj tsavxwm raug thauj khoom mus rau lub sijhawm teem tseg ntawm qhov kub thiab txias thiab av noo. Qhov siab tshaj plaws uas tso cai rau kev hloov pauv yog teev tseg piv rau lub rooj tsavxwm lub sijhawm, thiab dhau qhov kev txwv no txhais tau tias cov khoom tsis ua raws li qhov kev ntsuas creep. Rau cov pas dej ua lag luam, qhov chaw creep yog amplified los ntawm qhov av noo thiab kub siab tas li ntawm cov chaw ua dej. Lub pas dej ua ke hauv Dubai lossis Singapore muaj qhov kub thiab txias siab tshaj 35 degrees Celsius rau feem ntau ntawm lub xyoo, uas ua rau cov dej ntws viscoelastic hauv WPC matrices nrawm dua.
Ydwpc hais txog kev ua tau zoo ntawm kev nkag mus los ntawm kev tswj cov qauv. Cov ntsiab lus ntawm cov ntoo fiber, qib polymer, cov neeg sawv cev sib txuas, thiab cov txheej txheem ua tiav tau raug kho kom zoo kom txo qis kev hloov pauv mus sij hawm ntev. Tus qauv YD140RH23 co-extrusion tau txais txiaj ntsig los ntawm nws lub plhaub polymer tiv thaiv, uas faib cov khoom thauj ntawm qhov chaw sib npaug ntau dua thoob plaws ntawm lub rooj tsavxwm, txo qhov kev ntxhov siab qhov twg nkag mus pib. Cov neeg tshwj xeeb tuaj yeem thov daim ntawv pov thawj xeem nkag mus uas qhia txog kev hloov pauv zoo hauv D7032 txwv, txawm tias nyob rau hauv qhov kub siab. Cov ntaub ntawv no muaj txiaj ntsig zoo rau cov kws kes duab vajtse tsim cov pas dej ua ke hauv huab cua sov uas kev xaiv cov khoom siv deck yog qhov tseem ceeb rau kev ua haujlwm ntawm lub chaw mus sij hawm ntev.
4. Kev Rub Tawm Thiab Kev Sib Txuas Zoo ntawm Cov Qauv
Ib lub deck board tsuas yog muaj kev ntseeg siab raws li qhov kev sib txuas uas tuav nws rau hauv qab. ASTM D7032 daws qhov tseeb no los ntawm kev sim rub tawm ntawm cov khoom siv, uas ntsuas lub zog uas xav tau los rho tawm lub ntsia hlau lossis cov khoom siv ntawm lub board nyob rau hauv cov xwm txheej tswj tau. Rau cov pas dej ua lag luam, kev tiv thaiv rub tawm ntawm cov khoom siv yog qhov tseem ceeb rau kev nyab xeeb: cov boards xoob ua rau muaj kev phom sij rau kev poob, thiab nyob rau hauv ib puag ncig pas dej ntub, qhov xwm txheej poob thiab poob muaj kev lav phib xaub loj heev. Yog li ntawd, cov neeg tshwj xeeb kho tus nqi rub tawm ntawm cov khoom siv D7032 ua qhov kev kuaj xyuas yuav tsum tau ua.
Cov txheej txheem sim no suav nrog kev tsav cov ntsia hlau txheem rau hauv lub rooj tsavxwm ntawm qhov chaw tshwj xeeb thiab siv lub zog tensile perpendicular rau ntawm qhov chaw ntawm lub rooj tsavxwm kom txog thaum lub fastener rub tawm. Lub zog rub tawm tsawg kawg nkaus hauv D7032 raug ntsuas rau lub rooj tsavxwm qhov ceev thiab tuab, uas qhia txog cov khoom thauj uas xav tau los ntawm kev taug kev, cua nce siab, thiab kev nthuav dav thermal. Lub rooj tsavxwm uas muaj qhov ceev qis lossis kev faib tawm fiber tsis sib xws yuav ua rau muaj kev tuav tsis zoo, ua rau muaj kev txav mus los thiab thaum kawg lub fastener tsis ua haujlwm nyob rau hauv qhov rov ua dua thiab ziab voj voog feem ntau ntawm cov chaw ua luam dej.
Cov txheej txheem tsim khoom ntawm Ydwpc ua kom muaj qhov sib xws thoob plaws hauv seem ntawm lub rooj tsavxwm, uas yog qhov tseem ceeb ntawm kev rub tawm lub zog ntawm cov khoom siv. Lub YD150RH30 classic profile, nrog nws qhov siab 30 hli ntawm lub rooj tsavxwm, muab cov khoom siv tob txaus rau kev sib txuas ntawm cov ntsia hlau, thaum lub YD140RH23 co-extrusion qauv tau txais txiaj ntsig los ntawm cov txheej tuab uas tiv taus kev rub tawm ntawm qhov chaw. Ob qho khoom raug sim siv cov txheej txheem khi zais thiab cov ntsia hlau stainless-steel feem ntau teev rau kev teeb tsa pas dej ua lag luam. Cov neeg teev npe xaj 1,000 sqm tuaj yeem thov cov ntaub ntawv xeem rub tawm ntawm cov khoom siv ua ib feem ntawm pob khoom ua ntej Ydwpc, nrog rau cov sijhawm teeb tsa pom zoo uas tsim rau cov kev xav tau ntawm thaj chaw cua hauv zos.
5. Kev Tiv Thaiv Dej Thiab Kev Raug Tshuaj Hauv Pas Dej Ua Si
Cov pas dej ua lag luam ntsib teeb meem tshwj xeeb ntawm cov dej noo uas ntau dua li lwm cov ntawv thov sab nraum zoov. Cov laug cam raug dej txaws tas li, cov dej noo ntau, dej sawv, thiab cov tshuaj ntxuav xws li chlorine, bromine, thiab algaecides. ASTM D7032 suav nrog kev nqus dej noo thiab kev sim tuab-o kom ntsuas seb WPC board teb li cas rau cov xwm txheej no. Tus qauv hais txog kev sim dej hauv qab uas cov qauv ntawm cov laug cam raug tsau rau lub sijhawm teev tseg, thiab qhov hnyav nce thiab qhov hloov pauv loj raug ntsuas tawm tsam qhov txwv siab tshaj plaws.
Rau cov neeg tshwj xeeb uas ntsuas qhov kev txiav txim ntawm 1,000 sqm pas dej ua ke, cov ntaub ntawv tiv thaiv dej noo yog qhov sib txawv tseem ceeb ntawm cov kab khoom. Cov qauv WPC zoo li YD150RH30 muaj qhov chaw sib xyaw ua ke ntawm cov ntoo-fiber uas nqus dej noo ntawm tus nqi siab dua li cov qauv sib xyaw ua ke. Thaum YD150RH30 ua tau raws li ASTM D7032 qhov kev txwv kev nqus dej noo - thiab ua tau zoo hauv kev siv hauv tsev thiab kev lag luam - tus qauv sib xyaw ua ke YD140RH23 muab qhov zoo dua hauv cov chaw ua luam dej. Lub plhaub polymer sib xyaw ua ke ntawm YD140RH23 tsim ib qho kev thaiv lub cev uas txo qis dej nkag mus rau hauv lub hauv paus ntawm lub rooj tsavxwm, ua rau kev nqus dej noo qis dua, qhov tuab tsawg dua, thiab kev ruaj khov zoo dua li lub neej kev pabcuam ntawm kev teeb tsa.
Kev tiv thaiv tshuaj lom neeg yog ib qho khoom kuaj xyuas ntxiv rau cov neeg teev npe ntawm lub pas dej da dej. Dej chlorinated, dej ntsev hauv cov chaw ntug dej hiav txwv, thiab cov neeg ntxuav uas siv rau hauv kev saib xyuas pas dej ua lag luam tuaj yeem ua rau cov nplaim polymer puas tsuaj raws sijhawm. Ydwpc tsim nws cov khoom sib xyaw ua ke nrog cov tshuaj tiv thaiv tshuaj lom neeg uas ua tau raws li qhov kev cia siab ruaj khov uas tau muab tso rau hauv ASTM D7032. Rau cov haujlwm hauv thaj chaw ntug dej hiav txwv lossis cov chaw siv dej ntsev chlorination, co-extruded YD140RH23 yog qhov kev qhia pom zoo, vim nws qhov chaw kaw tiv taus cov ntsev siv lead ua thiab chloride ion nkag mus. Qhov no yog sib xws nrog cov lus qhia los ntawm CDC txoj kev pab cuam ua luam dej kom noj qab nyob zoo txog kev tswj hwm cov khoom siv pas dej ua ke kom muaj kev nyab xeeb thiab ruaj khov.
6. Kev Tiv Thaiv Kev Poob: Kev Ntsuas Kev Sib Txhuam rau Cov Pas Dej Ua Si ntub
Kev tiv thaiv kev plam yog qhov tseem ceeb tshaj plaws rau kev nyab xeeb rau txhua lub pas dej ua lag luam, thiab nws yog ib qho ntawm thawj cov khoom tshwj xeeb uas cov neeg tshuaj xyuas thaum soj ntsuam cov khoom WPC. Thaum ASTM D7032 hais txog kev tiv thaiv kev plam ua ib feem ntawm nws cov qauv kev ua tau zoo, ntau tus neeg qhia kuj hais txog cov qauv ntxiv xws li ASTM C1028 thiab Cov Lus Qhia Txog Kev Nkag Tau Mus Los ntawm Txoj Cai Lij Choj Txog Kev Tsis Taus ntawm Cov Neeg Asmeskas (ADAAG), uas qhia txog qhov tsawg kawg nkaus ntawm cov nqi sib txhuam rau cov kev nkag mus tau. ADAAG pom zoo kom muaj cov nqi sib txhuam ntawm 0.6 rau cov chaw tiaj tiaj thiab 0.8 rau cov ntaiv, thiab cov nqi no siv dav rau cov chaw ua luam dej hauv pas dej ua lag luam tsis hais thaj chaw twg.
WPC decking ua tiav qhov tsis kam plam los ntawm qhov nto - tus qauv embossed lossis pwm rau hauv lub ntsej muag ntawm lub rooj tsavxwm thaum lub sijhawm tsim khoom. Ob qho tib si YD150RH30 thiab YD140RH23 los ntawm Ydwpc muaj cov ntoo-grain textured nto tsim los tswj kev sib txhuam thaum ntub. Lub co-extruded YD140RH23 muaj qhov zoo ntxiv: nws lub hau txheej yog tsim nrog cov khoom siv tiv thaiv kev plam uas tau muab tso rau hauv lub polymer matrix, muab cov coefficient ntawm kev sib txhuam txawm tias tom qab ntau xyoo ntawm kev taug kev thiab kev raug tshuaj lom neeg uas tuaj yeem ua kom du cov qauv ntawm cov qauv qub. Rau 1,000 sqm lag luam pas dej ua ke deck, qhov kev sib xws ntev no tseem ceeb heev, vim tias lub deck uas dhau qhov kev xeem plam thaum tshiab tab sis dhau los ua nplua tom qab ob lub caij ntuj sov ntawm kev siv tsim teeb meem kev nyab xeeb thiab kev lav phib xaub.
Cov neeg tshwj xeeb yuav tsum thov cov ntaub ntawv xeem coefficient of friction (COF) ntawm cov chaw tsim khoom WPC uas tab tom txiav txim siab. Ydwpc muab cov ntaub ntawv no ua ib feem ntawm nws cov pob khoom ua raws li D7032, sim ntawm cov chaw soj nstuam ywj pheej kom tshem tawm txhua qhov kev tsis sib haum xeeb. Cov txheej txheem xeem suav nrog kev ntsuas lub zog uas xav tau los pib swb ntawm cov roj hmab xeem txheem hla qhov chaw ntub dej, thiab cov txiaj ntsig tau tshaj tawm ua tus lej tsis muaj qhov ntev. Ydwpc cov qauv pas dej ua ke ua tiav cov nqi COF ntub dej siab dua qhov tsawg kawg nkaus ADAAG, muab kev ntseeg siab rau cov neeg tshwj xeeb tias qhov chaw ntawm lub lawj yuav nyob twj ywm nyob rau hauv qhov xwm txheej ntub dej phem tshaj plaws uas ib puag ncig pas dej ua lag luam tuaj yeem tsim tau. Cov ntaub ntawv no txhawb nqa cov luag haujlwm ntawm tus neeg tshwj xeeb thiab ua kom yooj yim rau cov txheej txheem kev pom zoo nrog cov tub ceev xwm hauv tsev thiab cov neeg sau ntawv pov hwm.
7. Kev Ruaj Ntseg UV thiab Kev Khaws Xim Thaum Lub Neej Ua Haujlwm
Feem ntau cov pas dej ua lag luam feem ntau raug teeb tsa rau hauv qhov chaw qhib uas muaj hnub ci ntau tshaj plaws. Lub hnub ci UV yog qhov ua rau xim ploj, cov xim pleev xim rau saum npoo, thiab cov polymer embrittlement hauv cov ntaub ntawv WPC decking. ASTM D7032 hais txog kev ruaj khov UV los ntawm kev sim huab cua uas ua rau cov qauv ntawm lub rooj tsavxwm raug UV sai dua siv xenon-arc lossis fluorescent UV weathering apparatus, simulate ntau xyoo ntawm kev raug hnub ci hauv lub sijhawm luv luv. Tus qauv ntsuas kev hloov xim (delta E) thiab kev puas tsuaj ntawm qhov chaw tom qab lub sijhawm raug teeb tsa, thiab cov neeg teev npe siv cov nqi no los kwv yees qhov zoo li qub mus ntev.
Rau lub pas dej ua lag luam, kev ruaj khov ntawm xim muaj ob qho tib si zoo nkauj thiab kev ua haujlwm. Kev zoo nkauj, cov tsev so thiab cov chaw so nqis peev rau hauv ib hom lus tsim tshwj xeeb, thiab lub lawj uas ploj mus tsis sib xws hauv ob mus rau peb xyoos ua rau lub tsev puas tsuaj. Kev ua haujlwm, kev puas tsuaj ntawm UV ua rau lub polymer matrix ntawm qhov chaw ntawm lub rooj tsavxwm tsis muaj zog, txo qhov muaj zog flexural thiab kev tiv thaiv kev plam dhau sijhawm - ua rau cov khoom uas tus neeg teev tseg tau kuaj xyuas raws li D7032 ntawm qhov chaw yuav khoom. Qhov no yog vim li cas kev sim kev ruaj khov ntawm UV tsis yog tsuas yog lub thawv kos duab zoo nkauj xwb tab sis yog qhov ntsuas kev ruaj khov ntawm cov qauv.
Ydwpc suav nrog cov pob khoom UV stabilizer ua tau zoo hauv ob qho tib si nws cov kab khoom classic thiab co-extrusion. Cov qauv YD150RH30 classic siv kev sib xyaw ntawm cov hindered amine light stabilisers (HALS) thiab UV absorbers faib thoob plaws hauv pawg thawj coj, muab kev tiv thaiv UV yooj yim. Tus qauv YD140RH23 co-extrusion coj qhov no mus ntxiv: cov txheej polymer cap yog tsim nrog lub kaw lus UV stabiliser uas tiv thaiv cov khoom siv hauv qab, ua kom zoo ob npaug ntawm UV tiv thaiv piv rau cov qauv qub. Txoj hauv kev cap-txheej no zoo ib yam li cas Cov txheej txheem ntawm kev tsim cov composite decking tau hloov zuj zus thoob plaws hauv kev lag luam, nrog rau kev sib koom ua ke sawv cev rau lub xeev tam sim no ntawm cov kos duab. Rau cov neeg tshwj xeeb xaj 1,000 sqm ntawm pas dej ua ke decking, YD140RH23 yog qhov kev xaiv pom zoo thaum khaws xim tshaj 15-txog-25-xyoo kev pabcuam lub neej yog qhov yuav tsum tau ua haujlwm, thaum YD150RH30 muab lwm txoj hauv kev pheej yig uas qhov kev ploj xim nruab nrab yog qhov lees txais lossis qhov twg lub lawj yog ib nrab ntxoov ntxoo.
8. Co-Extrusion vs. Classic WPC: Kev Sib Piv ntawm Tus Neeg Qhia Tshwj Xeeb
Thaum ib tus neeg qhia meej txog kev txiav txim siab txog 1,000 sqm kev lag luam pas dej ua ke rau ob yam khoom uas tau xaiv los ntawm tib lub chaw tsim khoom, qhov kev xaiv feem ntau yog los ntawm kev tsim kho qub thiab kev sib koom ua ke. Ydwpc muaj ob qho tib si hauv nws daim ntawv teev npe: YD150RH30 sawv cev rau kev tsim kho WPC qub, thaum YD140RH23 yog kev sib koom ua ke (capped) lwm txoj hauv kev. Kev nkag siab txog qhov sib txawv ntawm kev tsim khoom, kev ua tau zoo, thiab tus nqi yog qhov tseem ceeb rau kev txiav txim siab qhov kev qhia tshwj xeeb rau ib qho project pas dej ua ke.
Cov WPC decking zoo li YD150RH30 yog tsim los ntawm cov txheej txheem extrusion ib zaug uas cov ntoo fiber, polymer resin, cov neeg sawv cev sib txuas, cov xim, thiab cov stabilizers tau sib xyaw thiab extruded los ntawm kev tuag hauv ib qho dhau. Lub rooj tsavxwm tau muaj qhov sib npaug ntawm qhov sib npaug nrog cov khoom siv sib xyaw los ntawm qhov chaw mus rau lub hauv paus. Kev tsim kho no tau ua pov thawj nws tus kheej dhau ob xyoo caum ntawm kev siv lag luam thiab tseem yog qhov kev xaiv txhim khu kev qha, pheej yig rau ntau daim ntawv thov. YD150RH30 ua tau raws li txhua qhov kev xav tau ASTM D7032, suav nrog 28 MPa flexural zog threshold, thiab nws qhov dav 150 hli los ntawm 30 hli qhov siab profile muab lub peev xwm tsim nyog rau cov qauv pas dej ua lag luam tus qauv.
Cov decking co-extrusion zoo li YD140RH23 ntxiv ib kauj ruam thib ob extrusion: lub plhaub polymer tiv thaiv (txheej hau) raug khi rau WPC lub hauv paus thaum lub sijhawm co-extrusion. Cov txheej hau no yog tsim los rau kev tiv thaiv UV zoo dua, kev tiv thaiv dej noo, kev tiv thaiv khawb, thiab kev ruaj khov xim. Qhov tshwm sim yog lub rooj tsavxwm uas ua tau zoo dua li WPC classic ntawm yuav luag txhua qhov kev ntsuas kev ruaj khov, txawm tias ntawm tus nqi siab dua ib-square-meter. Rau cov pas dej ua lag luam, qhov zoo ntawm co-extrusion yog qhov pom tseeb tshaj plaws hauv kev nqus dej noo, kev khaws cia xim UV, thiab kev tiv thaiv kev plam mus sij hawm ntev. Lub rooj hauv qab no qhia txog qhov sib txawv tseem ceeb:
| Cov Qauv | YD150RH30 (Qib Siab) | YD140RH23 (Co-Extrusion) |
|---|---|---|
| Kev Tsim Kho | Ib leeg-extrusion homogeneous WPC | Co-extruded WPC core nrog polymer cap |
| Lub zog flexural | Ua tau raws li qhov tsawg kawg nkaus 28 MPa D7032 | Tshaj 28 MPa; lub hau ntxiv qhov tawv |
| Kev Nqus Dej | Nyob rau hauv D7032 txwv | Qis dua vim yog lub hau kaw |
| Kev Khaws Xim UV | Zoo (HALS + UV absorbers thoob plaws) | Zoo tshaj (cov khoom ruaj khov uas muaj concentrated hauv lub hau) |
| Kev Tiv Thaiv Kev Poob (COF Ntub) | Ua tau raws li qhov tsawg kawg nkaus ntawm ADAAG | Tshaj ADAAG; cov tshuaj ntxiv rau lub hau tiv thaiv kev plam |
| Kev Tiv Thaiv Kev Nkag Siab | Nyob rau hauv D7032 txwv | Txhim kho los ntawm kev koom tes ntawm cov qauv ntawm lub kaus mom |
| Qhov Txuas Rub Tawm | Txheem (qhov siab ntawm lub rooj tsavxwm 30 hli) | Txhim kho los ntawm cov txheej tuab ntawm lub hau |
| Zoo Tshaj Plaws Rau | Cov haujlwm lag luam uas siv nyiaj tsawg; cov decks uas muaj duab ntxoov ntxoo | Cov pas dej da dej uas muaj hnub ci tag nrho; muaj neeg coob coob; dej ntug dej hiav txwv/dej ntsev |
Rau ib tus neeg tshwj xeeb uas muab 1,000 sqm xaj, lub matrix kev txiav txim siab yog yooj yim: yog tias lub pas dej da dej nyob rau hauv qhov chaw muaj UV siab, av noo siab, muaj neeg coob coob nrog dej ntsev lossis kev kho tshuaj lom neeg hnyav, YD140RH23 co-extrusion profile yog qhov kev xaiv zoo tshaj plaws. Yog tias qhov project raug txwv los ntawm cov peev nyiaj, lub lawj yog ib nrab ntxoov ntxoo, lossis qhov chaw siv kev kho dej mos mos, YD150RH30 classic profile xa cov pov thawj ASTM D7032 ua raws li tus nqi qis dua. Ydwpc pab pawg xa khoom tuaj yeem muab cov qauv ntawm ob qho profile rau kev ntsuam xyuas hauv thaj teb, nrog rau daim ntawv pov thawj xeem D7032 tiav thiab cov lus qhia teeb tsa, ua rau tus neeg tshwj xeeb txiav txim siab ua ntej cog lus rau qhov kev txiav txim loj.
Cov Lus Nug Feem Ntau
ASTM D7032 xav tau dab tsi rau WPC deck boards?
ASTM D7032 tsim cov qib kev ua tau zoo tsawg kawg nkaus rau WPC deck boards uas suav nrog lub zog flexural (yam tsawg kawg nkaus 28 MPa), kev rub tawm ntawm cov khoom siv, kev hloov pauv ntawm qhov nkag, kev nqus dej noo, kev ruaj khov UV, kev ruaj khov ntawm qhov ntev, thiab kev tiv thaiv kev plam. Cov khoom yuav tsum tau kuaj xyuas ntawm cov chaw soj nstuam uas tau lees paub thiab ua tau raws li txhua qhov tsawg kawg nkaus kom lees tias ua raws li D7032. Tus qauv no tau luam tawm los ntawm ASTM International thiab yog cov lus qhia tseem ceeb uas cov kws kes duab vajtse, cov engineers, thiab cov thawj coj hauv tsev hauv North America tau hais txog rau kev yuav khoom composite decking.
Vim li cas 28 MPa yog tus lej tseem ceeb ntawm lub zog flexural rau cov pas dej ua ke?
Qhov 28 MPa qhov txwv sawv cev rau qhov tsawg kawg nkaus modulus ntawm kev tawg uas ASTM D7032 xav tau rau cov ntoo sib xyaw ua ke siv ua cov laug cam deck. Tus nqi no ua kom ntseeg tau tias lub rooj tsavxwm tuaj yeem txhawb nqa cov khoom thauj ua ke ntawm kev taug kev, rooj tog, thiab kev ntxhov siab ib puag ncig ntawm qhov sib nrug ntawm tus qauv joist. Rau cov pas dej ua lag luam, qhov twg cov khoom thauj dynamic thiab kev ntxhov siab ntev dua li cov ntawv thov hauv tsev, cov neeg tshwj xeeb feem ntau nrhiav cov khoom uas tshaj 28 MPa los muab qhov kev nyab xeeb ntxiv. Ydwpc's YD150RH30 thiab YD140RH23 ob leeg ua tau raws li lossis tshaj qhov yuav tsum tau ua no.
Yuav ua li cas co-extrusion decking ua tau zoo dua li classic WPC hauv pas dej ua ke?
Cov ntaub pua plag co-extrusion zoo li YD140RH23 muaj ib txheej polymer tiv thaiv uas txuas nrog WPC lub hauv paus thaum lub sijhawm tsim khoom. Cov txheej hau no muab kev tiv thaiv dej noo zoo dua los ntawm kev tsim ib qho kev thaiv lub cev tiv thaiv dej nkag, txhim kho UV ruaj khov los ntawm cov khoom siv teeb pom kev zoo hauv cov qauv ntawm lub hau, thiab txhim kho kev tiv thaiv khawb thiab xim av. Hauv cov chaw ua luam dej ua lag luam uas muaj dej noo tas li, raug tshuaj lom neeg, thiab hluav taws xob UV siab, cov txiaj ntsig no txhais tau tias lub neej ua haujlwm ntev dua, kev saib xyuas qis dua, thiab kev khaws cia zoo dua qub piv rau cov qauv ib leeg-extrusion.
Kuv yuav tsum qhia meej tias lub zog rub tawm ntawm cov khoom siv khi rau lub pas dej ua lag luam yog dab tsi?
ASTM D7032 txhais cov nqi rub tawm tsawg kawg nkaus raws li qhov ceev thiab tuab ntawm lub rooj tsavxwm. Rau cov pas dej ua lag luam, cov neeg teev npe yuav tsum thov cov ntaub ntawv xeem rub tawm tshwj xeeb los ntawm lub chaw tsim khoom rau hom thiab qhov loj ntawm cov khoom siv uas siv rau hauv qhov project. Ydwpc muab daim ntawv pov thawj xeem rub tawm rau ob qho tib si YD150RH30 thiab YD140RH23 profiles, sim nrog cov kab ke kaw thiab cov ntsia hlau stainless-steel. Lub co-extruded YD140RH23 feem ntau qhia txog kev tiv thaiv rub tawm siab dua vim yog lub hau txheej tuab uas tiv taus kev rub tawm ntawm qhov chaw.
Kuv puas tuaj yeem thov cov ntawv qhia kev xeem los ntawm lwm tus ua ntej tso qhov kev txiav txim 1,000 sqm?
Yog, thiab koj yuav tsum ua li ntawd. Cov chaw tsim khoom WPC uas muaj koob npe zoo li Ydwpc muab cov ntawv qhia uas tau kuaj los ntawm SGS thiab daim ntawv pov thawj kuaj mob ywj pheej uas suav nrog txhua yam kev ua tau zoo ntawm ASTM D7032. Cov ntawv qhia no yuav tsum suav nrog lub zog flexural, creep deflection, fastener pull-out, noo noo nqus, UV weathering, thiab cov ntaub ntawv coefficient of friction. Ydwpc ua rau cov ntaub ntawv no muaj ua ib feem ntawm pob khoom ua ntej kev tsim nyog rau txhua qhov kev nug txog kev lag luam, thiab lub tuam txhab tswj kev sim tas mus li nrog SGS kom ntseeg tau tias muaj kev sib xws ntawm cov khoom loj.
Lub sijhawm ua haujlwm ntawm ASTM D7032-compliant WPC decking ntawm lub pas dej ua lag luam yuav siv tau ntev npaum li cas?
Kev ua raws li ASTM D7032 yog qhov tsawg kawg nkaus ntawm kev ua tau zoo, tsis yog kev lav lub neej ua haujlwm. Lub neej ua haujlwm tiag tiag nyob ntawm qhov zoo ntawm kev teeb tsa, huab cua, kev saib xyuas, thiab qib kev khiav tsheb. Txawm li cas los xij, lub lawj WPC uas ua raws li D7032 uas tau teeb tsa thiab tswj xyuas kom zoo ntawm lub pas dej ua lag luam tuaj yeem xa tau 15 txog 25 xyoo ntawm kev pabcuam. Cov qauv sib koom ua ke zoo li YD140RH23 yog nyob rau qhov kawg siab tshaj plaws ntawm qhov ntau no vim muaj kev tiv thaiv dej noo thiab UV ntau dua, thaum cov qauv qub zoo li YD150RH30 muab kev ua tau zoo ntawm tus qauv rau pawg.