ASTM D7032 28 MPa Flexural pa Ma Decks a Pool Yamalonda: Zomwe Ma Specifiers Anafufuza

1. Chifukwa chiyani ASTM D7032 ndi muyezo wa woyang'anira chipata cha malo ochitira masewera olimbitsa thupi a dziwe lamalonda

ASTM D7032, yofalitsidwa ndi ASTM Yapadziko Lonse, imagwira ntchito ngati muyezo waukulu wa kugula zinthu ku North America komanso padziko lonse lapansi za WPC. Muyezowu unapangidwa chifukwa kukula mwachangu kwa ma decking a composite kumayambiriro kwa zaka za m'ma 2000 kunapanga vacuum yabwino: popanda mfundo yogwirizana, ma specifiers analibe njira yodalirika yofananizira zinthu kuchokera kwa opanga osiyanasiyana. ASTM D7032 inadzaza kusiyana kumeneku pofotokoza kuchuluka kwa magwiridwe antchito a mphamvu yosinthasintha, kutulutsa zomangira, kukana kukwera, kukhazikika kwa UV, kuyamwa kwa chinyezi, ndi kukhazikika kwa magawo.

Pa ma deki a dziwe la malonda, mavuto ake ndi okwera kwambiri kuposa a m'nyumba. Deki ya dziwe la anthu onse mu hotelo kapena malo opumulirako imatha kukhala ndi anthu 500 mpaka 2,000 patsiku nthawi yachilimwe. Mipando, mipando, zida zamawilo, ndi kuwonetsedwa ndi mankhwala ochokera kumadera odzaza ndi chlorine kapena madzi amchere zimapangitsa kuti pakhale zovuta zomwe deki ya m'nyumba sikumana nazo. Chifukwa chake, akatswiri amagwiritsa ntchito ASTM D7032 ngati fyuluta yoyesera: ngati chinthu sichingasonyeze kuti chikutsatira malamulo, chimachotsedwa pampikisano musanayambe kukambirana za mitengo. Ichi ndichifukwa chake chilichonse chotsimikizika. Wopanga Wpc imafalitsa deta yoyesera ya D7032, ndi chifukwa chakeInde yapereka malipoti a mayeso a SGS a chipani chachitatu pa gulu lililonse la opanga kuyambira pomwe idakhazikitsidwa ku Ningbo mu 2010.

Mphamvu ya 28 MPa yopindika yomwe yatchulidwa mu D7032 ndi yofunika kwambiri pama deki a dziwe. Mphamvu yopindika—kuthekera kwa bolodi kuti lisamapindike pansi pa katundu—imatsimikizira mwachindunji kutalika kwa malo olumikizirana, kulemera kokulirapo komwe deki lingathe kupirira, komanso ngati matabwa apanga kusintha kosatha pakapita nthawi. Wofotokozera yemwe akuyang'ana dongosolo la deki la dziwe la 1,000 sqm adzayerekeza chinthu chilichonse chofanana ndi nambala iyi poyamba, chifukwa chimathandizira kuwerengera kulikonse kwaukadaulo. Zinthu zomwe zimakwaniritsa kapena kupitirira 28 MPa zitha kufotokozedwa motsimikiza pa malo olumikizirana a 400 mm; zomwe sizili bwino zimafuna malo olumikizirana pafupi komanso mtengo wokwera wa malo olumikizirana.

2. Kumvetsetsa Kufunika kwa Mphamvu Yosinthasintha ya 28 MPa

Mphamvu yopindika, yomwe imatchedwanso modulus of rupture (MOR), imayesa kupsinjika kwakukulu komwe bolodi la WPC lingathe kupirira lisanasweke poyesa kupindika. Ma References a ASTM D7032 a ASTM D7032 ASTM D790 monga njira yochitira zinthu. Mwachizolowezi, chitsanzo cha bolodi la deki chimayikidwa pa zothandizira ziwiri, ndipo katundu amayikidwa pakati mpaka chitsanzocho chitalephera. Kupsinjika komwe kumachitika, komwe kumawonetsedwa mu megapascals (MPa), ndi mphamvu yopindika ya chinthucho.

Kuchuluka kwa 28 MPa mu ASTM D7032 kukuwonetsa mphamvu yocheperako yonyamula katundu yomwe imafunika pa bolodi la deck kuti lithandizire kulemera kwa anthu oyenda pansi, mipando, ndi zida zosamalira nthawi zina pamalo okhazikika. Pa ntchito za dziwe lamalonda, zofotokozera nthawi zambiri zimawonjezera malire achitetezo, kupempha 30 MPa kapena kupitirira apo kuti aganizire za katundu wosinthika kuchokera kwa anthu ambiri ndi zida za dziwe lamadzi zomwe zili pamawilo. Mbiri yakale ya Ydwpc ya YD150RH30 imayesa nthawi zonse kuposa 28 MPa mu mayeso a labotale ovomerezeka ndi SGS, pomwe mbiri ya YD140RH23 co-extrusion, yokhala ndi chivundikiro cha polymer cholimba, imapereka magwiridwe antchito opindika kumapeto kwa WPC.

Kwa specifier yomwe imayitanitsa malo okwana 1,000 sqm a dziwe losambira, nambala ya mphamvu ya flexural imayendetsanso ndalama zogulira malo. Bolodi lomwe lili ndi 28 MPa lingafunike 350 mm pakati pa joist pansi pa mikhalidwe yogulitsa, pomwe kuyesa kwa bolodi pa 32 MPa nthawi zambiri kumatha kufotokozedwa pa 400 mm. Kuposa 1,000 sqm, kusiyana kwa 50 mm kumatanthauza kuchepetsa koyezera kwa zinthu za joist ndi ntchito yoyika. Ichi ndichifukwa chake specifiers anzeru amayerekeza mtengo weniweni wa mayeso ndikuwayika mu chitsanzo chonse cha polojekiti. Ydwpc imapereka satifiketi yonse ya mayeso a flexural ndi kutumiza kulikonse kuti athandizire kusanthula uku.

3. Kupatuka kwa Creep: Chifukwa Chake Kugwira Ntchito kwa Katundu Wanthawi Yaitali N'kofunika pa Ma Pool Decks

Ngakhale mphamvu yopindika imauza wofotokozera kuchuluka kwa katundu womwe bolodi lingathe kupirira panthawi yolephera, kupotoka kwa kugwedezeka kumasonyeza zomwe zimachitika pansi pa katundu wopitilira miyezi ndi zaka. ASTM D7032 imaphatikizapo zinthu zoyesera kugwedezeka chifukwa zipangizo za WPC zimakhala zosalala: zimasinthasintha pang'onopang'ono komanso pang'onopang'ono pansi pa kupsinjika kosalekeza. Pa desiki ya dziwe lamalonda, kupsinjika kumeneku kumachokera ku zinthu zokhazikika—mabokosi obzala, ma railings, mipando yokhazikika, nyumba za zida za dziwe—komanso kuchokera ku magalimoto ambiri panthawi yogwira ntchito.

Mayeso a D7032 creep amapangitsa chitsanzo cha bolodi kukhala ndi katundu wokhazikika kwa nthawi yodziwika bwino pa kutentha ndi chinyezi cholamulidwa. Kupatuka kwakukulu komwe kungaloledwe kumafotokozedwa poyerekeza ndi kutalika kwa bolodi, ndipo kupitirira malire awa kumatanthauza kuti chinthucho sichinakwaniritse muyezo wa creep. Pa ma deck a dziwe lamalonda, malo otsetsereka amakulitsidwa ndi chinyezi chambiri komanso kutentha komwe kumakhalapo nthawi zonse m'malo am'madzi. Deck ya dziwe ku Dubai kapena Singapore imakhala ndi kutentha kozungulira kuposa madigiri 35 Celsius kwa nthawi yayitali pachaka, zomwe zimapangitsa kuti kuyenda kwa viscoelastic mu matrices a WPC kuchepe.

Ydwpc imayang'anira magwiridwe antchito a creep kudzera mukuwongolera kapangidwe kake. Kuchuluka kwa ulusi wa matabwa, kalasi ya polima, zinthu zolumikizira, ndi magawo opangira zonse zakonzedwa bwino kuti zichepetse kupotoka kwa nthawi yayitali. Chitsanzo cha YD140RH23 co-extrusion chimapindula ndi chipolopolo chake choteteza cha polima, chomwe chimagawa katundu pamwamba mofanana kwambiri kudutsa gawo lonselo, kuchepetsa kuchuluka kwa kupsinjika komwe kumayamba kupotoka. Ofotokozera amatha kupempha satifiketi yoyesera creep yomwe ikuwonetsa kupotoka mkati mwa malire a D7032, ngakhale kutentha kwambiri. Deta iyi ndi yothandiza kwa omanga mapulani opanga ma decks a dziwe m'malo otentha komwe kusankha zinthu za padenga ndikofunikira kwambiri pakugwira ntchito bwino kwa malo kwa nthawi yayitali.

4. Kutulutsa Zomangira ndi Kugwirizana Kwakapangidwe

Bolodi la deki ndi lodalirika ngati kulumikizana komwe kumaigwirizanitsa ndi malo omangira. ASTM D7032 imathetsa vutoli kudzera mu kuyesa kutulutsa zomangira, komwe kumayesa mphamvu yofunikira kuti ichotse skurufu kapena chomangira kuchokera pa bolodi pansi pa mikhalidwe yolamulidwa. Pa ma deki a dziwe lamalonda, kukana kutulutsa zomangira ndi gawo lofunika kwambiri pachitetezo: ma board osasunthika amapanga zoopsa zoyenda, ndipo m'malo onyowa a dziwe, ngozi yoyenda ndi kugwa imakhala ndi vuto lalikulu. Chifukwa chake, ofotokozera amawona mtengo wotulutsa zomangira za D7032 ngati malo owunikira ofunikira.

Njira yoyeserayi imaphatikizapo kuyika zomangira zokhazikika m'bokosi pamalo enaake ndikugwiritsa ntchito mphamvu yokoka yolunjika pamwamba pa bolodi mpaka chomangira chitatuluka. Mphamvu yocheperako yotulutsa mu D7032 imalinganizidwa ndi kuchuluka ndi makulidwe a bolodi, kuwonetsa katundu woyembekezeredwa kuchokera ku kuyenda kwa mapazi, kukwera kwa mphepo, ndi kukwera kwa kutentha. Bolodi yokhala ndi kuchuluka kochepa kapena kufalikira kwa ulusi kosasinthasintha idzawonetsa kulimba bwino kwa chomangira, zomwe zimapangitsa kuti chiziyenda bwino komanso kulephera kwa chomangira mobwerezabwereza pansi pa kayendedwe konyowa ndi kuumitsa komwe kumachitika m'malo osambira.

Njira yopangira ya Ydwpc imatsimikizira kuchulukana kokhazikika pa bolodi lonse, lomwe ndi chinthu chachikulu chomwe chimapangitsa kuti zomangira zigwire ntchito. Mbiri yakale ya YD150RH30, yokhala ndi kutalika kwa bolodi la 30 mm, imapereka kuzama kokwanira kwa zinthu zomangira, pomwe chitsanzo cha YD140RH23 chophatikizana chimapindula ndi gawo lolimba la chivundikiro lomwe limakana kukokedwa pamwamba. Zogulitsa zonsezi zimayesedwa pogwiritsa ntchito makina obisika omangira ndi zomangira zachitsulo chosapanga dzimbiri zomwe nthawi zambiri zimayikidwa pa dziwe lamalonda. Opanga zinthu zomangira malo okwana 1,000 sqm amatha kupempha deta yoyesera yomangira zingwe ngati gawo la phukusi loyambirira la Ydwpc, pamodzi ndi ndondomeko zomangira zomwe zimakonzedwa mogwirizana ndi zofunikira za dera la mphepo.

5. Kukana Chinyezi ndi Kukhudzidwa ndi Mankhwala M'malo Omwe Madzi Amalowa

Ma deki a dziwe lamalonda amakumana ndi mavuto apadera a chinyezi kuposa omwe amagwiritsidwa ntchito pa deki ina iliyonse yakunja. Ma board amakumana ndi madzi ochulukirapo, chinyezi chambiri, madzi osasunthika, ndi mankhwala oyeretsera kuphatikizapo chlorine, bromine, ndi algaecides. ASTM D7032 imaphatikizapo kuyesa kuyamwa chinyezi ndi makulidwe kuti ayese momwe bolodi la WPC limayankhira ku mikhalidwe iyi. Mayeso okhazikika a kumiza m'madzi komwe zitsanzo za board zimanyowa kwa nthawi yodziwika, ndipo kuwonjezeka kwa kulemera ndi kusintha kwa mawonekedwe kumayesedwa motsutsana ndi malire ololedwa.

Kwa akatswiri ofufuza malo osungiramo madzi okwana masikweya mita 1,000, deta yolimbana ndi chinyezi ndi yofunikira kwambiri pakati pa mizere ya zinthu. Ma profiles akale a WPC monga YD150RH30 ali ndi malo opangidwa ndi ulusi wamatabwa omwe amayamwa chinyezi pamlingo wapamwamba kuposa ma profiles opangidwa ndi ulusi. Ngakhale YD150RH30 imakwaniritsa malire a kuyamwa chinyezi a ASTM D7032—ndipo imagwira ntchito bwino m'nyumba ndi m'mabizinesi—chitsanzo cha YD140RH23 chophatikizana chimapereka mwayi woyezeka m'malo osungira madzi. Chipolopolo cha polima chophatikizana pa YD140RH23 chimapanga chotchinga chakuthupi chomwe chimachepetsa kwambiri kulowa kwa madzi mkati mwa bolodi, zomwe zimapangitsa kuti kuyamwa madzi kuchepe, kukhuthala pang'ono, komanso kukhazikika kwabwino pa nthawi yonse yogwira ntchito yokhazikitsa.

Kukana kwa mankhwala ndi chinthu china chowunikira cha zinthu zoyezera malo osambira. Madzi okhala ndi chlorine, madzi amchere m'malo osungiramo zinthu m'mphepete mwa nyanja, ndi zinthu zoyeretsera zomwe zimagwiritsidwa ntchito pokonza malo osungiramo zinthu m'mabwalo amalonda zimatha kuwononga malo a polima pakapita nthawi. Ydwpc imapanga zinthu zake zosungiramo zinthu ndi zowonjezera zosagwira mankhwala zomwe zimakwaniritsa ziyembekezo zolimba zomwe zili mu ASTM D7032. Pa mapulojekiti m'madera a m'mphepete mwa nyanja kapena malo ogwiritsira ntchito chlorine m'madzi amchere, YD140RH23 yophatikizidwa ndi yomwe ikulimbikitsidwa, chifukwa malo ake otsekedwa amakana kupanga makristalo amchere ndi kulowa kwa chloride ion. Izi zikugwirizana ndi malangizo ochokera ku Pulogalamu Yosambira Yathanzi ya CDC pa kusamalira zomangamanga zotetezeka komanso zolimba za dziwe losambira.

6. Kukana Kutsetsereka: Kuyesa Koyenera ya Kukangana kwa Ma Decks a Dziwe Lonyowa

Kukana kutsetsereka mwina ndiye chinthu chofunikira kwambiri pachitetezo cha dziwe lililonse la malonda, ndipo ndi chimodzi mwa zinthu zoyambirira zomwe akatswiri amafufuza akamayesa zinthu za WPC. Ngakhale kuti ASTM D7032 imalankhula za kukana kutsetsereka ngati gawo la njira zake zogwirira ntchito, akatswiri ambiri amatchulanso miyezo yowonjezera monga ASTM C1028 ndi Americans with Disabled Act Accessibility Guidelines (ADAAG), yomwe imatchula kuchuluka kwa static coefficient of friction values ​​komwe kungafikire njira zofikirika. ADAAG imalimbikitsa static coefficient of friction ya 0.6 pamalo otsetsereka ndi 0.8 pama ramp, ndipo izi zimagwiritsidwa ntchito kwambiri pamalo a dziwe lamalonda mosasamala kanthu za ulamuliro wa boma.

Kuyika kwa WPC kumathandizira kuti pakhale kulimba kwa kutsetsereka kudzera mu kapangidwe ka pamwamba—kapangidwe kojambulidwa kapena kupangidwa pamwamba pa bolodi panthawi yopanga. Zipangizo zonse ziwiri za YD150RH30 ndi YD140RH23 zochokera ku Ydwpc zili ndi mawonekedwe a matabwa opangidwa kuti azigwira ntchito bwino akamanyowa. Zipangizo za YD140RH23 zomwe zimatulutsidwa pamodzi zili ndi ubwino wina: kapangidwe kake kamakhala ndi zowonjezera zotsutsana ndi kutsetsereka zomwe zili mu polymer matrix, zomwe zimapereka kukwanira kokhazikika kwa kugwedezeka ngakhale patatha zaka zambiri zoyenda pansi komanso kuwonetsedwa ndi mankhwala omwe amatha kusalala mawonekedwe a pamwamba pa ma profiles akale. Pa deck ya dziwe lamalonda la 1,000 sqm, kukhazikika kumeneku kwa nthawi yayitali ndikofunikira kwambiri, chifukwa deck yomwe imapambana mayeso otsetsereka ikangoyamba kumene koma imakhala yoterera pambuyo pa nthawi yachilimwe ziwiri yogwiritsidwa ntchito imapanga vuto losatha komanso lodziyimira pawokha.

Opanga zinthu ayenera kupempha deta yoyesera ya wet-condition coefficient of friction (COF) kuchokera kwa wopanga aliyense wa WPC amene akuganiziridwa. Ydwpc imapereka deta iyi ngati gawo la phukusi lake lovomerezeka la D7032, loyesedwa m'ma laboratories odziyimira pawokha kuti athetse kusamvana kulikonse. Ndondomeko yoyeserayi imaphatikizapo kuyeza mphamvu yofunikira kuti ayambe kutsetsereka kwa phazi loyesera la rabara lokhazikika pamwamba pa malo onyowa, ndipo zotsatira zake zimanenedwa ngati coefficient yopanda miyeso. Ma profiles a Ydwpc a dziwe nthawi zonse amakwaniritsa miyezo yonyowa ya COF kuposa ADAAG yocheperako, zomwe zimapatsa opanga zinthu chidaliro kuti malo onyowa azikhala otetezeka pansi pa mikhalidwe yonyowa kwambiri yomwe malo ochitira bizinesi a dziwe angapange. Deta iyi imathandizira maudindo a wopanga zinthu ndipo imapangitsa kuti njira yovomerezeka ikhale yosavuta ndi akuluakulu a zomangamanga ndi opereka inshuwaransi.

7. Kukhazikika kwa UV ndi Kusunga Utoto Pa Nthawi Yonse Yogwira Ntchito

Ma deki a dziwe lamalonda nthawi zambiri amaikidwa m'malo otseguka omwe ali ndi mphamvu zambiri padzuwa. Mphamvu ya UV yochokera ku dzuwa ndiyo chifukwa chachikulu cha kutha kwa mitundu, kusweka kwa choko pamwamba, ndi kusweka kwa polima mu zipangizo za WPC. ASTM D7032 imayang'ana kukhazikika kwa UV kudzera mu mayeso a nyengo omwe amapatsa zitsanzo za bolodi mphamvu ya UV pogwiritsa ntchito chipangizo cha xenon-arc kapena fluorescent UV, zomwe zimatsanzira zaka za kuwonekera kwa dzuwa munthawi yopanikizika. Muyezowu umayesa kusintha kwa mtundu (delta E) ndi kuwonongeka kwa pamwamba pambuyo pa nthawi yodziwika bwino, ndipo zofotokozera zimagwiritsa ntchito mfundo izi kuti zidziwitse kusungidwa kwa mawonekedwe kwa nthawi yayitali.

Pa malo ogulitsira dziwe la malonda, kukhazikika kwa mitundu kumakhala ndi zotsatira zabwino komanso zogwira ntchito. Pakukongola, mahotela ndi malo opumulirako amaika ndalama mu chilankhulo cha kapangidwe kake, ndipo malo omwe amawonongeka mosagwirizana mkati mwa zaka ziwiri kapena zitatu amawononga mawonekedwe a malowo. Pakugwira ntchito, kuwonongeka kwa UV kumafooketsa matrix a polymer pamwamba pa bolodi, kuchepetsa mphamvu yopindika ndi kukana kutsetsereka pakapita nthawi—kuwononga zinthu zomwe wofotokozerayo adazifufuza pansi pa D7032 panthawi yogula. Ichi ndichifukwa chake kuyesa kukhazikika kwa UV sikungokhala bokosi loyang'ana zokongoletsa koma muyezo wokhazikika wa kapangidwe.

Ydwpc imaphatikizapo ma phukusi a UV stabilizer ogwira ntchito kwambiri m'mizere yake yakale komanso yophatikizana. Mbiri yakale ya YD150RH30 imagwiritsa ntchito kuphatikiza kwa zolimbitsa kuwala kwa amine zomwe zimatsekedwa (HALS) ndi zolimbitsa kuwala kwa UV zomwe zimagawidwa mu board unit yonse, zomwe zimapereka chitetezo cha UV choyambirira. Chitsanzo cha YD140RH23 co-extrusion chikupita patsogolo: gawo la polymer cap limapangidwa ndi dongosolo lolimbitsa UV lomwe limateteza zinthu zamkati, zomwe zimapangitsa kuti kukana kwa UV kuwirikize kawiri poyerekeza ndi ma profiles akale. Njira iyi ya gawo la cap ndi yofanana ndi momwe ukadaulo wopangira madenga ophatikizika Yasintha kwambiri m'makampani onse, ndipo kutulutsa pamodzi kukuyimira zamakono zomwe zikuchitika panopa. Kwa osankha omwe akufuna malo okwana masikweya mita 1,000 a dziwe losambira, YD140RH23 ndiye chisankho chomwe amalangizidwa ngati kusunga utoto kwa zaka 15 mpaka 25 kukufunika pa ntchito, pomwe YD150RH30 imapereka njira ina yotsika mtengo pomwe kutha pang'ono kuli kovomerezeka kapena komwe denga lili ndi mthunzi pang'ono.

8. Co-Extrusion vs. Classic WPC: Kuyerekeza kwa Specifier Mbali ndi Mbali

Pamene chipangizo chofotokozera chichepetsa mtengo wa malo ogulitsira dziwe la malonda okwana masikweya mita 1,000 kufika pa zinthu ziwiri zomwe zasankhidwa kuchokera kwa wopanga yemweyo, nthawi zambiri chisankhocho chimadalira kapangidwe kakale ndi kophatikizana. Ydwpc imapereka zonse ziwiri mu kabukhu kake: YD150RH30 ikuyimira kapangidwe kakale ka WPC, pomwe YD140RH23 ndi njira ina yophatikizana (yokhala ndi chivundikiro). Kumvetsetsa kusiyana kwa kupanga, magwiridwe antchito, ndi mtengo ndikofunikira popanga chisankho choyenera cha ntchito ya malo ogulitsira dziwe.

Ma decking akale a WPC monga YD150RH30 amapangidwa ndi njira imodzi yotulutsira ulusi wamatabwa, utomoni wa polymer, zinthu zolumikizira, zinthu zopaka utoto, ndi zokhazikika zimasakanizidwa ndikutulutsidwa kudzera mu die mu pass imodzi. Bolodi lomwe limatuluka lili ndi gawo lofanana lokhala ndi kapangidwe ka zinthu zomwezo kuchokera pamwamba mpaka pakati. Kapangidwe kameneka kakhala kakugwiritsidwa ntchito m'mabizinesi kwa zaka makumi awiri ndipo kamakhalabe chisankho chodalirika komanso chotsika mtengo pa ntchito zambiri. YD150RH30 ikukwaniritsa zofunikira zonse za ASTM D7032, kuphatikiza malire a mphamvu yosinthasintha ya 28 MPa, ndipo mawonekedwe ake a 150 mm m'lifupi ndi 30 mm kutalika amapereka mphamvu yofunikira pa malo okhazikika a deck ya dziwe lamalonda.

Kuyika kozungulira kozungulira kofanana ndi YD140RH23 kumawonjezera gawo lachiwiri lowonjezera: chipolopolo choteteza cha polima (gawo la kapu) chimalumikizidwa ku core ya WPC panthawi yophatikiza kozungulira. Gawo la kapu iyi limapangidwa kuti likhale lolimba kwambiri pa UV, kusalowa chinyezi, kukana kukanda, komanso kukhazikika kwa utoto. Zotsatira zake ndi bolodi lomwe limachita bwino kuposa WPC yakale pa pafupifupi muyezo uliwonse wokhazikika, ngakhale pamtengo wokwera pa mita imodzi. Pa ma deki a dziwe lamalonda, ubwino wa kozungulira kozungulira umaonekera kwambiri pakuyamwa chinyezi, kusunga mtundu wa UV, komanso kukana kutsetsereka kwa nthawi yayitali. Gome ili pansipa likufotokoza kusiyana kwakukulu:

Kwa munthu amene akufuna kuyitanitsa malo okwana masikweya mita 1,000, njira yodziwira vutoli ndi yosavuta: ngati malo osambiramo ali pamalo otentha kwambiri, otentha kwambiri, komanso odzaza ndi madzi amchere kapena mankhwala amphamvu, mawonekedwe a YD140RH23 co-extrusion ndi chisankho chabwino kwambiri. Ngati polojekitiyi ili ndi bajeti yochepa, malo osambiramo ali ndi mthunzi pang'ono, kapena malo ogwirira ntchito akugwiritsa ntchito madzi ofatsa, mawonekedwe akale a YD150RH30 amapereka kutsata kotsimikizika kwa ASTM D7032 pamtengo wotsika. Gulu lotumiza kunja la Ydwpc lingapereke zitsanzo za ma profiles onse awiri kuti liwunikire, pamodzi ndi satifiketi yonse yoyesera ya D7032 ndi malangizo okhazikitsa, zomwe zimathandiza wofufuzayo kupanga chisankho chokwanira asanapereke oda yayikulu.