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Usuku Sobafundile Ukuthi Izinkambo Eziningi Akuzange Zibe Yindlela Yokuthi "Ziningi"
Kusasa kwezinyanga eziningi, sizithintela isikhumba sokugqibela esihlukanayo emsebenzini wokugqibela kwesibhakabhaka sika-basalt ngoba ukuthengiselwa kwayo kwasenza kuncane. Isiphetho esikhulu. Ngemva kwezihour ezi-80, sizihlukanile izinkampani zonke zezinkampani zokugqibela—futhi izindlela zokubuyisa zazinikela konke okusindiswe ngokuthengiselwa. Lokhu kungumqondo wokuqala wethu wokukhupha amaphepha okuhlelo futhi ukubona ukuthi indiza yenzela yini umshini. Uma ubhekisa i-granite, i-basalt, noma i-quartzite, uyabhekisa ukuthi indiza iyasekhaya yekhanda elikhulu kune-MPa ezi-150—kanye nangaphezu kwe-MPa ezi-250. Lokhu kusho ukuthi kukhona i-silica, lokhu kusho ukuthi kunezinkinga zokugqibela, futhi lokhu kusho ukuthi udinga ukugqibela ngokuthintana, akukho ukugqibela ngokuthintana. Amakhombe ase-Jaw ayasebenza lapha ngoba abhambisana indiza ngamaphakathi amahle athi aphakathi kwezinkampani zayo, akubhambisana ngokuthintana kakhulu. I-Bureau of Mines yase-United States yashicile izindaba eziningi mizuzwana edlule kodwa ziyasebenza manje: ukugqibela ngokuthintana kwezindiza ezinamandla kwe-silica kunciphisa isikhathi sokusebenza kwezinkampani zokugqibela ngokuphakeme kwe-70% kulimestone. Sibonile lokhu ngokwempilo, futhi akukho ukuchaza kakhulu.
Okuthi 50,000 Tons yama-Granite ase-Norway asifundise
Sibonile kuthiwe izimpahla zokugcina ezisemaphandleni kwezindawo zokuphambuka kwezindawo zokuhamba ngaphandle kuka-Oslo kusukela eminyakeni eyadlule. Umkhakha wabhalwa ngokubhalwa kwe-granite—kunye nesikhala, sikhala kakhulu, nokuthi kuyisikhala 6–7 esika-Mohs. Ubukhulu bekho bokufaka kwabhalwa ngokuphelele ku-600 mm, futhi sizobhala isikhala sokugcina esisemaphandleni esinamaplate ase-high-manganese steel. Le makhina yabhala amathonya angu-50,000 ngaphandle kokubhala kanye nezinkinga ezingaphezulu. Sifuna amathonya angu-250 ngohora ngokuphelele, futhi ukuphuma kuyisikhala sangu-150 mm noma ngapansi koko, okuphumelela ekuphakameni kwezindawo zokuhamba zase-Norway kwezindawo zokuphambuka. Ukuphumelela okukhulu? Sibhala amaplate ase-jaw kuphela kanye eminyakeni engu-1,800. Akukho phambili—lokhu kukubhekisa isikhala sokugcina nesikhala. Uma sibeziphinde sibhala ngokusebenzisa isikhala sokugcina ngokubhala, sibeziphinde sibhala amaplate ase-blow ngohlanga ngohlanga futhi sibeziphinde sibhala amapharthi okubuyisela ngokuphambuka kwehelicopter.
Kodwa isikhala sokugcina ngokubhala siphumelela kakhulu (Futhi akukho isikhala esikhulu)
Manje yenza ngokusebenzisa indlela eyodwa. Amaphakathi, amabrikhi, kanye ne-asphalt engafuni ukuthi yilapho—kuzoba nokuphuma. Amaphakathi ayisikhombisa 3 kuya kuya ku-3.5 kwe-Mohs, amabrikhi ayisikhombisa 5 kuya kuya ku-6, kanye ne-asphalt engafuni ukuthi yilapho ayisikhombisa 4 kuya kuya ku-5. Akukho kwezi zinto ezinamandla we-silica okuyoba nokuhlaba izinyathelo zokubeka imithwalo. Sisebenzisa izinyathelo zokubeka imithwalo kulezi zinto futhi sibona ukuthi ubunzima bezinyathelo zokubeka imithwalo ziyakwenzeka kusukela ku-700 kuya kuya ku-1,100 amahora—ngokufanele kubili kuya kuya ku-60% kude kunezokuthi sizobonwa kwe-granite. Umthwalo wokuthi kuyinto esifanayo: lezi zinto ziyizihlathi, okusho ukuthi zihlatha ngokubeka imithwalo kungakhulula kusuka kwe-rotor. Ufumana izinkambo ezingavumelekileyo, okuyinto esifuna ngazo iziphetho zase-asphalt kanye ne-concrete, futhi ufumana kubo ngokungafani kwezinkinga zokugcina. Kube kunesikhundla apho sibekwe amathonsi angu-35,000 wezibrikhi kanye ne-asphalt esivusekileyo emhlabeni wase-Downtown Stockholm kusuka kwezikhundla zemigugu—akukho kuhlela kokugcina kwezinyathelo zokubeka imithwalo, ubunzima obungu-95% kusuka kwezikhundla zemigugu kusukela ku-12 izwe, futhi siphendula izikhundla zemigugu ngokungu-2 izwe ngaphambi kwesikhundla sokuphendula. I-Swedish Transport Administration yabhaliwe le ndawo kwe-2023 Circular Construction Report, futhi umphumela omkhulu akayi kuphela ukuthi kuyasukela kusukela kusukela—kuyi-1,200 izitrip zezithonga esizikhubaza ngokubeka imithwalo kusukela kusukela kusukela.
Into Kuphela Okukusavuma Ukuthi Sizokwethula Ngokuphelele Ekubhaleni Kwemithombo Yokuqondisa Nokuthabatha
Imithombo yokuqondisa nokuthabatha iyisibonelo esingaphakamiseki kakhulu sokufaka. Iyafaka amaphepha, isikhwama, isiphalaphala, amasimbi amancane—izinto eziyakubeka kumkhumbi futhi ziyakuhlupha amashini okuhambisa uma ungakuzinikela. Sikufunda lokhu ngendlela engezansi emsebenzini wasebrownfield lapho sizohamba ngaphandle kokubhekisa kabefore ukususa isikhathi. Emva kwezihour ezintathu, sibekwe kumkhumbi owenziwe ngamahora amadhalfa ukususa. Manje asizihambisi imithombo yokufaka ngaphandle kokubhekisa kabefore ngokusebenzisa i-grizzly bar noma i-vibrating scalping deck phambi kwesikhumba. Lokhu kubhekisa kabefore kususa izinto ezincane kanye nezinto ezingaphansi kwezinye zokufaka phambi kokufika kumkhumbi. I-European Federation of Recycling Industries (EuRIC) ibiza ukuthi ukuphakamisa kwezikhathi zokusebenza kuyisilinganiso sezihour ezintathu kumasekhundu awasekhiyeliwe, futhi lokhu kuchaze ukuthi sibhekisa kule mikhumbi yethu. Akukho mhlaba wokubona, kodwa kuyakugcina umshini ukusebenza futhi kuyakunquma ukuthi uthathe isikhathi sakho sokususa ngokusebenzisa i-pry bar.
Ngoba Sizohamba Ku-Modular Systems Kule Mikhumbi Yasezindaweni Zomzimba
Uma kufunda isithuthi esinye kuphela, isikrasha esinye sisebenza kahle. Kodwa izinkampani zethu zonke lezi zizindawo zokufunda izinto ezihlukahlukene—konkreti, asfalti, ibhrikhi, nokweyona amaphakathi okwesibhakabhaka kuqondile. Ngalesi simo, sizofunda izinhlangano zezinkampani ezingathathelwe ngendlela yezinkampani ezihlukahlukene ezinokubambisana: isikrasha sesibili, isikrasha sokuhlinzeka, nokusikrasha kwesibili ngendlela yekheshi enye. Isikrasha sesibili sifunda izinto ezikhulu, isikrasha sokuhlinzeka sibambisa izinto ezincane (ezingaphezu kwe-10 mm) ukufaka, futhi isikrasha kwesibili sifunda izinto eziningi (kuma-10 kuya kuma-40 mm) ukuze zibe yizinkampani ezihlanzekile. Izinto ezikhulu kuyabuyiselwa emuva. Ngokulinganisa nezinkampani ezihlukahlukene, sizokhupha ukusetshenziswa kwemoto ngama-25%—lokhu kuyisiphumo se-UK Environment Agency 2022, futhi sizobonisa lokhu ngamaphakathi ethu emoto—futhi sizokhupha indawo yokusebenza ngama-40%. Kuma-bhlokhi waseNyuwe, lokhu kuyisiphumo sokuthi sibhalela noma sibhalela ngokungafundisi. Amakhontrolu okugcina ngamaphakathi ayishintsha ngokuzenzakalelayo ukuthatha izinto, ngakho akukho mhlaba esibhala ngokuzenzakalelayo ukuthatha izinto. Isandla esinye, RCA noma RAP esivumelwe, futhi sizodlula.
Isibonelo Sakhuluma Ngokuzithemba Ngokukhetha Isikhombisa Esifanele
Uma ubhula igranite, ibasalt, noma iqhuacite, bheka isikhombisa sesihlathi. Kuphela lokho. Uma uthusele ilimestone, ibhrikhi, noma i-asphalt esihlukile, isikhombisa sesiphakathi sizokusinda imali nezinkinga zokuhlela. Uma ipile yakho iyisibonelo sezinto zonke, yenza ngendlela eyodwa nge- pre-screening ekhulwe kuyo. Sibhekise izinkinga zonke ozikwazi ukuzibhekisa kulezi zindawo—sibhulile isikhombisa esingafanele, sibhala isikhombisa sokubhula, sibhula isibhulo kusheshile—futhi ngalokho, isikhombisa sasibonisa kabusha ngaphambi kokuba umphathi wasekhaya asibonise. Hliseni amathambo, akalohlisi indaba yokuthengisa.
Imibuzo Emisheshelayo Kusuka Kwezindlu Zethu
Munakwenzela igranite ngaphansi kwesikhombisa sesiphakathi uma ushangele amabhlo-bharu kusheshile? Unakwenza lokho, kodwa akukho mthwalo wakho. Sibonile ukuthi umbala wezintambo zokubhula ziyophela ngama-70% kwezintambo eziphezulu kwe-silica—lokho kuyabambisana nezinkulungwane zezinto ezinye nezindlela zokuhlala. Sebenzisa kuphela isikhombisa sesihlathi. Yini inkulungwane yezinto ezingahlanzeka kwezikhombisa zokuthengiselwa? Izinto ezizokuphatha, ngaphandle kokukhetha. Kodwa umsindo wokugcina oqondile wakho uyisilingo sokusebenzisa isikhombisa esingafanele kumaterial yakho futhi ukuphatha izinto ngaphambi kokuthi uhlale ubeke isibonelo sokubhala. U: Uthini xa kufanele ukubhala amaphepha we-jaw? Sijabula ngasinye isikhathi esingu-200 emaholishini kwezinkundla ezingabi ngezinkundla. Xa iprofile iyadlula futhi uqonde ukuthi kunezinkundla ezingabi ngezinkundla ezikhipha ngaphansi, lokhu yisikhathi. Ungamthinte uma ziyadlula kabusha. U: Ukuscreena kwangaphambili kuyadingeka kangakanani kwe-concrete esihlanu? Kwe-concrete esihlanu, akudingeki kangaka. Kodwa uma kunezincwadi, izihlangu, noma izihlangu zokudla zikhiywe, yebo—kuzosinda ukungabhalwa okukodwa ngasinye isikhathi sokusebenza, futhi lokhu kuyabhalisa iscreen deck ngamasonto amashumi elishumi.