Hot Weather

Ngaphansi kwezimo zezulu ezishisayo, kugcizelelwa ukuphatha izikhathi zokubeka ukhonkolo kanye nokunciphisa ukulahlekelwa umswakama kusukela ekubekeni. Indlela elula yokufingqa izincomo zesimo sezulu esishisayo sokwakhiwa okuphezulu ukusebenza ngezigaba (ukubekwa kwangaphambili, ukubekwa, nokubekwa ngemuva).

Ukucatshangelwa kwesimo sezulu esishisayo esigabeni sangaphambi kokubekwa kufaka phakathi ukuhlela ukwakhiwa, ukwakheka kwengxube kakhonkolo, kanye ne-base slab conditioning. Izingxube ze-topping zikakhonkolo eziklanywe ngenani eliphansi lokopha zisengozini ikakhulukazi ezindabeni zesimo sezulu esishisayo ezivamile njengokushwabana kwepulasitiki, uqweqwe, kanye nesikhathi sokusetha esingahambisani. Lezi zingxube ngokuvamile zinesilinganiso esiphansi sezinto zikasimende zamanzi (w/cm) kanye nokuqukethwe kwezinhlawulo eziphezulu ezivela ku-aggregate nemicu. Ukusebenzisa i-aggregate esezingeni eliphezulu enosayizi ophezulu omkhulu kunawo wonke ongakhona wohlelo lokusebenza kuhlala kuhle. Lokhu kuzokwenza ngcono isidingo samanzi kanye nokusebenza kwamanzi athile.

I-conditioning ye-base slab ingenye yezinto ezicatshangelwayo ezibaluleke kakhulu lapho ubeka ama-toppings esimweni sezulu esishisayo. I-conditioning izohluka kuye ngokuthi i-topping design. Ama-toppings ahlanganisiwe azuza kukho kokubili izinga lokushisa kanye nesimo somswakama ngenkathi izimo zokushisa kuphela kuzodingeka zicatshangelwe kuma-slabs angaboshiwe.

Ezinye iziteshi zesimo sezulu eziphathwayo zikala izimo ze-ambient futhi zivumela okokufaka kwezinga lokushisa elikhonkolo ukunikeza izinga lokuhwamuka ngesikhathi sokubekwa okukhonkolo.

Isisekelo somswakama we-slab sama-toppings ahlanganisiwe kunciphisa ukulahlekelwa umswakama kusuka phezulu futhi kungasiza ukwandisa isikhathi sokumisa inhlanganisela yokupholisa ngokupholisa i-base slab. Ayikho inqubo ejwayelekile yokubeka isimo se-base slab futhi ayikho indlela yokuhlola ejwayelekile yokuhlola izinga lomswakamo ongaphezulu we-base slab elungele ukuthola i-topping. Osonkontileka abahlolisiswe mayelana nokulungiselela kwabo isimo sezulu esishisayo se-base-slab babike inqwaba yezindlela eziphumelelayo zokulungisa isimo.

Abanye osonkontileka bamanzisa ingaphezulu ngepayipi lengadi kuyilapho abanye bethanda ukusebenzisa iwasha yokucindezela ukusiza ukuhlanza nokuphoqelela amanzi ezimbotsheni ezingaphezulu. Ngemuva kokumanzisa indawo, osonkontileka babika ukuhluka okubanzi ezikhathini zokucwiliswa emanzini noma zokumisa. Abanye osonkontileka abasebenzisa amawasha kagesi baqhubeka nokubeka phezulu ngokushesha ngemva kokumanzisa kanye nokususwa kwamanzi amaningi ngaphezulu. Ngokuya ngezimo ezizungezile zokumisa, ezinye zizomanzisa indawo engaphezu kwesisodwa noma zimboze ingaphezulu ngepulasitiki futhi zibekwe endaweni phakathi kwamahora amabili nangama-24 ngaphambi kokukhipha amanzi angaphezulu nokubeka ingxube engaphezulu.

Izinga lokushisa le-base slab lingase futhi lidinge isimo uma lishisa kakhulu kune-topping mix. I-hot base slab ingaba nomthelela omubi ekuhlanganiseni kwe-topping ngokunciphisa ukusebenza kwayo, ukwandisa isidingo samanzi, kanye nokusheshisa isikhathi sokusetha. Ukulungisa izinga lokushisa kungase kube nzima ngokusekelwe kubuningi be-slab ekhona. Ngaphandle uma i-slab ivalekile noma ifakwe umbala, zimbalwa ezinye izindlela zokunciphisa izinga lokushisa le-base slab. Osonkontileka base-US eseningizimu bancamela ukumanzisa indawo engaphezulu ngamanzi apholile noma babeke i-topping mix ebusuku noma kokubili. Osonkontileka abahloliwe abazange babeke umkhawulo ekubekweni kwe-topping ngokusekelwe ekushiseni kwe-substrate; ukubekwa okuncanyelwayo kakhulu ebusuku kanye nesimo somswakama, ngokusekelwe kokuhlangenwe nakho. Ocwaningweni lokumbondelana komgwaqo oboshiwe e-Texas, abacwaningi babike izinga lokushisa eliyisisekelo le-slab elingu-140 F noma ngaphezulu ngesikhathi sasehlobo elangeni eliqondile futhi batusa ukugwema ukubeka phezulu lapho amazinga okushisa e-substrate engaphezu kuka-125 F.

Ukucatshangelwa kwesimo sezulu esishisayo esigabeni sokubeka kufaka phakathi ukuphatha amazinga okushisa okuletha ukhonkolo kanye nokulahlekelwa umswakama kusuka ku-topping slab ngesikhathi sokuqedela. Izinqubo ezifanayo ezisetshenziselwa ukuphatha izinga lokushisa lekhonkrithi lama-slabs lingalandelwa ukuze kufakwe ama-toppings.

Ngaphezu kwalokho, ukulahlekelwa umswakama ovela ku-concrete topping kufanele kuqashelwe futhi kuncishiswe. Kunokusebenzisa izilinganiselo zesilinganiso sokuhwamuka kwe-inthanethi noma idatha yesiteshi esiseduze sezulu ukuze ubale izinga lokuhwamuka, isiteshi sezulu esiphathwa ngesandla kufanele sibekwe endaweni ephakeme ngama-intshi angu-20 ngaphezu kwendawo ye-slab. Izinto ezisetshenziswayo ziyatholakala ezingakala izinga lokushisa lomoya osendaweni kanye nomswakama ohlobene kanye nesivinini somoya. Lawa madivaysi adinga kuphela ukuthi izinga lokushisa likakhonkolo lifakwe ukuze abale ngokuzenzakalelayo izinga lokuhwamuka. Uma izinga lokuhwamuka lingaphezu kuka-0.15 kuya ku-0.2 lb/sf/hr, kufanele kuthathwe isinyathelo sokunciphisa izinga lokuhwamuka endaweni engaphezulu.