Izithasiselo zikakhonkolo ezingasindi | Ama-ejenti Akhipha Amagwebu Asebenza Kakhulu Wokhonkolo Weselula
Ukhonkolo wegwebu waziwa nangokuthi usimende onegwebu, ukhonkolo ongasindi, njll. Iwuhlobo olusha lwezinto zokwakha ezonga amandla futhi ezilungele ukumosha, nemvelo, ukonga amandla, engabizi futhi engashi. Ukhonkolo ongasindi (ukhonkolo onegwebu) ukuletha umoya noma i-nitrogen, i-carbon dioxide, umoya-mpilo kanye namanye amagesi ku-slurry kakhonkolo ngamakhemikhali noma ngokomzimba ngokwezidingo zohlelo lokusebenza-imikhiqizo ethile enamandla amakhulu. Ukukhiqizwa kokhonkolo ongasindi (ukhonkolo wegwebu) ngokuvamile indlela eyimishini yokulungisa i-agent enegwebu enamanzi egwebu. Umsebenzi othize ngu: yenza i-ejenti enegwebu isixazululo samanzi sibe igwebu ngezindlela ezizenzakalelayo bese wengeza igwebu odongeni oluhlanganiswe ngezinto ze-silicon, izinto ze-calcium, amanzi kanye nezixube ezihlukahlukene, njll., emva kokuhlanganisa nokuhlanganisa, ukuthulula ukubumba, ukwelapha Kwenziwe.
Njengohlobo olusha lwezinto zokwakha ezonga amandla nezingangeni imvelo, osolwazi ekhaya naphesheya benze ucwaningo oluningi kanye nentuthuko ukuze isetshenziswe kabanzi ezintweni zodonga. The advantages are low density, engasindi, ukufakwa kwe-thermal, ukufakwa komsindo, earthquake resistance and other properties. Nokho, it still has certain defects, such as low strength, ukuqhekeka, water absorption, njll. Ngakho-ke, to further expand its application field, further research is needed in foaming agent, mix ratio, process flow, equipment and so on. It can be applied to retaining walls, construction of sports fields and track and field runways, sandwich members, used as composite wall panels, pipeline backfill, lean concrete filling, roof slopes, support for storage tank feet, njll. Nokho, its application has defects such as low strength, cracking and water absorption, and its performance needs to be further improved.
Lightweight concrete features:
1. Lightweight and strong
Lightweight concrete has a low density. The density grade of commonly used lightweight concrete is 300-1200kg / m3, which is equivalent to 1 / 5-1 / 10 of ordinary concrete. Amandla okucindezela angaphezulu kuka-0.25Mpa, kanye nokujula okuhlukene kungakhiqizwa ngokuvumelana nezidingo zokuklama kwesakhiwo sikakhonkolo ongasindi (ukhonkolo wegwebu) imikhiqizo.
2. I-Insulation
Ngoba ukhonkolo ongasindi uqukethe inani elikhulu lama-pores avaliwe futhi amancane, ukusebenza okushisayo kuhle kakhulu, kanye nokhonkolo ongasindi onezinga lokuminyana lika-260-1200kg / I-m3 ine-conductivity eshisayo engu-0.06-0.3W (M.K).
3. Ukukhipha umsindo okuhle kakhulu nokumelana nomlilo
Ukhonkolo ongasindi uyinto enezimbotshana enomsindo wokumuncwa 0.09-0.19%. Inokusebenza okuhle kakhulu kokufakwa komsindo. Ingasetshenziswa njengesendlalelo sokufakwa komsindo ekwakhiweni kwaphansi kanye namabhodi okufaka umsindo womgwaqo onguthelawayeka, ukwakha ngaphansi komhlaba izitezi eziphezulu nezinye izinkundla.
4. Ukumelana nokushaqeka okuphansi okunwebekayo
I-porosity kakhonkolo ongasindi kuyenza ibe ne-modulus ephansi yokunwebeka ukuze ibe nomthelela omuhle kakhulu wokumuncwa kanye nokuhlakazeka emithwalweni yomthelela..
Isilinganiso semiksi kakhonkolo engasindi
Idizayini yesilinganiso sokuxuba sikakhonkolo ongasindi kufanele ngokuyinhloko ihlangabezane nezidingo zamandla okucindezela, ukuminyana nokuvumelana, futhi isekelwe esimisweni sokusetshenziswa okunengqondo kwezinto kanye nokonga usimende. Lapho kudingeka, izidingo ezikhethekile zezakhiwo ezithile (njenge-elastic modulus, i-carbonization, kanye nokumelana nesithwathwa) kufanele kuhlangatshezwane nayo.
I-mix ratio kakhonkolo ongasindi kufanele inqunywe ngokubala kanye nokuxuba komzila.
Isamba esilula nesiqinile esilinganisweni sokuhlanganisa sikakhonkolo we-lightweight aggregate kufanele sisebenzise uhlobo olufanayo lwe-aggregate engasindi. Lapho i-structural insulation light aggregate ukhonkolo kanye nemikhiqizo yayo ixutshwe ne-light coarse aggregate yamalahle. (isithando somlilo) i-slag, okuqukethwe kwayo akufanele kube ngaphezu kwalokho 30% yesamba esiphelele esimahhadla. Okuqukethwe kwekhabhoni kwamalahle (isithando somlilo) okusele akufanele kube ngaphezu kwalokho 10%. Lapho uhlanganisa olunye uhlobo lwe-aggregate eqinile ukuze kuthuthukiswe izakhiwo ezithile, inani elifanelekile lokuxuba kufanele linqunywe ngokuhlolwa.
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 nathi.