Naizvozvo, vamwe vagadziri vezvivakwa, vakaita sekambani yekuvaka yeWaugh Thistleton, vari kusundira kudzokera kuhuni sechinhu chikuru chekuvaka. Huni kubva mumasango dzinotora kabhoni, kwete kuiburitsa: sezvo miti inokura, inotora CO2 kubva mumhepo. Sezvo mutemo, cubic mita yehuni ine inenge tani ye CO2 (zvichienderana nemhando yehuni), iyo yakaenzana ne 350 malita epeturu. Haisi chete huni inobvisa CO2 yakawanda kubva mumhepo kupfuura iyo inoita panguva yekugadzirwa, inotsivawo carbon-intensive zvinhu zvakadai sekrete kana simbi, kaviri mupiro wayo mukuderedza CO2 mazinga.
“Nemhaka yokuti chivako chemapuranga chinorema inenge 20% yechivako chekongiri, simba rinokwevera zvinhu pasi rinoderedzwa zvikuru,” anodaro mugadziri wemapurani Andrew Waugh. “Izvi zvinoreva kuti tinoda faundesheni shoma, hatidi kongiri yakakura muvhu. Tine musimboti wehuni, madziro emapuranga uye matanda pasi slabs, saka tinochengeta huwandu hwesimbi hushoma. " Simbi inowanzoshandiswa kugadzira zvitsigiro zvemukati uye kusimbisa kongiri muzvivakwa zvakakura zvemazuva ano. Nekudaro, kune mashoma maprofile esimbi muchivako ichi chemapuranga, "Waugh anodaro.
Pakati pe15% ne28% yedzimba nyowani dzakavakwa kuUK dzinoshandisa kuvaka furemu yemapuranga gore rega rega, iyo inotora anopfuura miriyoni matani eCO2 pagore. Mushumo wacho wakagumisa kuti kuwedzera kushandiswa kwehuni mukuvaka kunogona kuwedzera nhamba iyoyo nekatatu. "Kuchengetwa kwehukuru hwakafanana kunogoneka muzvikamu zvekutengeserana neindasitiri kuburikidza nekushandisa masisitimu matsva akaita sehuni dzakachinjika."
Cross-laminated matanda, kana CLT, inzvimbo yekuvaka iyo Andrew Waugh ari kuratidza muEast London. Nekuti inonzi "engineered wood," tinotarisira kuona chimwe chinhu chinoita sechipboard kana plywood. Asi CLT inoita seyakajairika mapuranga mapuranga 3 m kureba uye 2,5 cm gobvu. Icho chiripo ndechekuti mapuranga anove akasimba nekunamatira pamwechete matatu mu perpendicular layers. Izvi zvinoreva kuti mabhodhi eCLT "haakotame uye ane simba rakakosha munzira mbiri."
Mamwe matanda ehunyanzvi akadai seplywood neMDF ane angangoita gumi muzana anonamira, kazhinji urea formaldehyde, anogona kuburitsa makemikari ane njodzi panguva yekugadziriswa kana kupisa. CLT, zvisinei, ine isingasviki 10% yekunamatira. Mapuranga anonamirwa pamwe chete pasi pesimba rekupisa uye kumanikidzwa, saka chidimbu cheglue chinokwana gluing uchishandisa unyoro hwehuni.
Kunyange zvazvo CLT yakagadzirwa muAustria, kambani yekuvaka yeLondon yaWaugh Thistleton ndiyo yakatanga kuvaka chivakwa chine nhurikidzwa dzakawanda chaishandiswa naWaugh Thistleton. Murray Grove, chivakwa chegrey-chakapfeka chine nhurikidzwa pfumbamwe, chakakonzera "kuvhunduka uye kutya muAustria" payakapedzwa muna 2009, anodaro Wu. CLT yaimboshandiswa chete kune "dzakanaka uye nyore dzimba dzenhurikidzwa mbiri", nepo kongiri nesimbi zvaishandiswa pazvivakwa zvirefu. Asi kuna Murray Grove, chimiro chese iCLT, ine madziro ese, pasi slabs uye shafts yekusimudza.
Chirongwa ichi chakakurudzira mazana evagadziri vezvivakwa kuti vavake zvivakwa zvirefu neCLT, kubva pa55-mita Brock Commons muVancouver, Canada kusvika kune 24-nhurikidzwa 84-mita HoHo Tower parizvino iri kuvakwa muVienna.
Munguva pfupi yapfuura, kwave nekufona kwekudyara miti pamwero mukuru kuderedza CO2 uye kudzivirira shanduko yemamiriro ekunze. Zvinotora makore anenge 80 kuti miti yemupaini iri mumasango, semuspruce yekuEurope, ikure. Miti inonyura kabhoni mukati memakore ayo ekukura, asi kana yakura inoburitsa kabhoni yakawanda sezvainopinza. Semuenzaniso, kubvira 2001, masango eCanada anga achiburitsa kabhoni yakawanda kupfuura yaari kutora, nekuda kwekuti miti yakura yamira kutemwa.
Nzira yekubuda nayo kutema miti mumasango uye kudzorerwa kwayo. Basa remasango rinowanzodyara miti miviri kana mitatu pamuti wega wega unotemwa, izvo zvinoreva kuti kudiwa kukuru kwematanda, miti midiki ichaonekwa.
Zvivako zvinoshandisa matanda-based zvinhu zvinowanzova nekukurumidza uye nyore kuvaka, kuderedza basa, mafuta ekufambisa uye mari yemagetsi emunharaunda. Alison Uring, mutungamiriri wekambani yezvivakwa yeAecom, anopa muenzaniso wechivako che200-unit CLT chivakwa chakatora mavhiki gumi nematanhatu chete kuti chivakwa, icho chingadai chakatora angangoita mavhiki makumi maviri nematanhatu dai chakavakwa sechinyakare nefuremu yekongiri. Saizvozvo, Wu anoti chivakwa chichangobva kupedzwa 16-square-metres CLT chaakashanda pachiri "chaizoda kutakura marori esimende 26 chete kwehwaro." Zvakangovatorera 16 kutakura kuendesa zvese CLT zvinhu.