Ukuhlaziywa Okuningiliziwe Kwezinto Ezithinta Ukuqina Kokhonkolo Wegwebu

Ukwethulwa kwama-pores ku ukhonkolo wegwebu, Ngakolunye uhlangothi, ikunika ukukhanya, ukufakwa komsindo, ukufakwa kwe-thermal, uketshezi oluphezulu, nezinye izakhiwo ukhonkolo ovamile ongenazo. Noma kunjalo, ngokombono wesakhiwo kanye nemishini, futhi yethula inani elikhulu lamaphutha, okuholela ekubeni igwebu eliqinile Ukuncipha okuphawulekayo kwamandla kakhonkolo. Ngoba i-porosity kukhonkolo wegwebu ngokuvamile iphakeme kakhulu 50-70%, futhi ubukhulu bembotshana bungaphezu kuka-10um, ukuqina kokhonkolo wegwebu kuphansi kakhulu kunokhonkolo ojwayelekile. Njengokhonkolo ojwayelekile, amandla ukhonkolo Foam akulona inani fixed. Izinhlobo ezehlukene zezinto zikasimende, Isikali sikasimende, isilinganiso sokuxuba ukhonkolo, isilinganiso samanzi nosimende, umthamo wegwebu (leyo, ubukhulu bevolumu ehlukene), superplasticizer ukhonkolo, uhlelo lokwelapha, futhi ukusetshenziswa kwezinye izithasiselo kuthinta amandla ukhonkolo Foam.

1. Umthelela wesilinganiso senhlanganisela yezinto


Phakathi nenqubo yokwakha, ukhonkolo wegwebu ungalungiswa ngokusebenzisa usimende yedwa, noma ngokusebenzisa ingxube ngaphandle kukasimende (njenge-silica fume, i-slag, fly umlotha, njll.), noma isamba esihle (isihlabathi). Umthelela we-mix ratio emandleni kakhonkolo onegwebu uhlukaniswe ikakhulukazi ngezinhlobo ezintathu:


(1) Lapho izinga lamandla liphakeme futhi kulapho sisetshenziswa kakhulu usimende, ukuphakama kokuqina kokhonkolo wegwebu. Ngakho-ke, lapho kufiswa ukulungisa ukhonkolo onegwebu ngokugxila okuphezulu, kuyadingeka ukukhetha usimende webanga lamandla aphezulu.


(2) Ukwethulwa kwezinto ezixubile kuzodala amandla okuqala okhonkolo we-foam t
o kuncishiswe kakhulu, kodwa umthelela wokushuba kwakamuva awubalulekile. Uma kungezwa isikhuthazi esifanelekile, ukuncishiswa kokuqina kokuqala kungancishiswa. Ngaphandle kwalokho, uma kusetshenziswa izinto ezixubene kakhulu, njenge-silica fume kanye ne-ultra-fine ground slag powder, amandla awanciphi kakhulu, futhi ngezinye izikhathi ngisho ukwanda.


(3) Lapho isihlabathi sisetshenziswa njenge-aggregate emihle, ukuqina kokhonkolo wegwebu kuzokwehla ngokwesimiso kuye kumazinga ahlukene. Noma kunjalo, ukwengezwa kwesihlabathi kuzoba nenzuzo kakhulu ukuthuthukisa ukuzinza kwevolumu nokunciphisa ukuncipha kokhonkolo oluqinile lwe-foam. Ekwakhiweni kwangempela, kuvame ukukwenzeka ukuthi izinto ezixubile nesihlabathi zixutshwe ngesikhathi esisodwa. Ngakho-ke, kukhona uhla olufanele lwenani lekhonkrithi ye-foam, okudingeka kunqunywe ngokusekelwe ekuhloleni.


2. Umthelela wesilinganiso samanzi nosimende


Uma kuphela izinguquko zesakhiwo zangaphakathi zekhonkrithi ye-foam zihlaziywa, ukwanda kwezinga likasimende wamanzi nakanjani kuzoholela ekwehleni kwamandla. Nokho, inani elikhulu lokuhlola liye lafakazela ukuthi lapho izinga likasimende wamanzi lenyuka phakathi kwebanga elithile, ukumelana ngeke kunciphe kuphela kodwa kuzokwanda. Nokho, ngaphansi kwesimo sesilinganiso esiphansi samanzi-usimende, ukuthatha izinyathelo ezifanele kungaqinisekisa futhi ukuthi udaka lukasimende lunoketshezi oluhle, ukuze uthole ukhonkolo wegwebu oqinile.

3. Umthelela wezimo zokongiwa kwemvelo
Izimo zokuphulukisa zinomthelela omkhulu emandleni nasekuthuthukiseni amandla okhonkolo we-foam. Ukhonkolo wegwebu unomlotha wamanzi okhangisayo omkhulu, ngakho ukuphulukiswa kusenesikhathi kufanele kuqiniswe ukuze kuvinjwe amandla ekuncipheni nasekuqhekekeni okubangelwa ukuhwamuka okukhulu kwamanzi. Lapho izinga lokushisa lokwelapha likhuphuka, isivinini se-hydration sikasimende siyashesha, futhi ukuthuthukiswa kokuqala kokhonkolo wegwebu kuyashesha. Ukuqina kunemiphumela emibi.
4. Umthelela we cizithasiselo ze-oncrete
Izixube ezihilelekile kukhonkolo we-Foam zingama-agent ogwebu ukhonkolo, superplasticizer ukhonkolo, nama-stimulants we-admixtures. I-ejenti ethize eyenza amagwebu inomphumela obaluleke kakhulu kukhonkolo yegwebu. Kudingekile ukukhetha i-ejenti enegwebu enemiphumela emibi emincane ohlelweni, ikhono eliphezulu lokukhihliza amagwebu, namandla amagwebu aphezulu. I-activator ihlose ngokuyinhloko ukungezwa kwe-admixture, okuzokwenza ukuthi amandla okuqala kakhonkolo wegwebu anciphe. Yehlisa ubukhulu bokwehliswa, kodwa futhi kuzonciphisa ukuqina kokugcina; i-superplasticizer kakhonkolo ivumela isistimu ukuthi ixube igwebu kanye ne-slurry ngokulinganayo ngenani eliphansi likasimende wamanzi..

I-Cie-China.org ingumhlinzeki oholayo wezithasiselo zikakhonkolo wegwebu ohlinzeka nge-ejenti yokugwedla ukhonkolo, superplasticizer,isithuthukisi samandla kakhonkolo wegwebu kukhonkolo ongasindi, Amabhulokhi e-CLC. Uma ufuna i-ejenti ekhihlizayo, sicela ukhululeke xhumana nawes.