Decrypt Isixa seSamente kwi-Foam Concrete

Zeziphi imathiriyeli ekrwada ikhonkrithi yogwebu?

Amacandelo aphambili ekhonkrithi enegwebu yisamente, bhabha uthuthu, umsi wesilika, ifayibha, njl. Eminye imilinganiselo inomxholo othe kratya wesamente, kwaye eminye imilinganiselo inomlinganiselo omncinci wesamente, ngoko ke iingxaki ezithile mazihlalutywe ngokweenkcukacha. Ngenxa yokuba ikhonkrithi enegwebu iphiliswa kakhulu phantsi kweemeko eziqhelekileyo zobushushu, kunye nenani elikhulu le-foam liyongezwa, le miba mibini imisela ukuba umlinganiselo wayo wesamente uya kuba phezulu.

Yintoni i-ALC?

I-ALC sisishunqulelo se-autoclaved lightweight concrete, oluluhlobo lwekonkrithi ene-aerated esebenza ngokuphezulu (I-ALC). Ibhodi ye-ALC yenziwe ngothuthu lwempukane (okanye isanti yesilika), isamente, lamoni, njl. njengezona zixhobo ziphambili, kwaye inyangwa ngumphunga woxinzelelo oluphezulu ukwenza icwecwe lekhonkrithi elinobukroti (equlathe ukuqiniswa kwentsimbi esetyenzisiweyo). Ibhodi ye-ALC ingasetyenziselwa njengezinto zodonga kunye nepaneli yophahla. Luhlobo olutsha lwezinto zokwakha ezinomsebenzi ophezulu. Ibhodi ye-ALC yaqala ukubonakala eYurophu, kunye neJapan, IYurophu kunye neminye imimandla ingaphezu 40 iminyaka yemveliso kunye nembali yokusetyenziswa. Ngoku, itekhnoloji yemveliso kunye nezixhobo zokuvelisa zabenzi basekhaya zithunyelwa kakhulu eJapan naseJamani.

Ikhonkrithi yogwebu yahluke kakhulu kwi-ALC. Ngenxa yokuba i-ALC ithatha i-autoclave, ikakhulu ixhomekeke kwi-hydration reaction yothuthu lwempukane kunye nekalika phantsi kobushushu obuphezulu kunye noxinzelelo lokuvelisa igelation.. Isamente yimathiriyeli encedisayo.

Ngelixa ikhonkrithi yegwebu iveliswa kwiqondo lobushushu begumbi, i-microaggregate esebenzayo ayiyi kuvelisa ngokukhawuleza ukusabela kwe-hydration, kwaye ugwebu lwayo oluluqilima lusaxhomekeke kwimpembelelo yesamente. Ngoko ke, umlinganiselo wokuxuba wekhonkrithi enegwebu kufuneka ibe yisamente njengowona mzimba uphambili, kunye neReyishini ephezulu yesamente.

Phantsi kweemeko eziqhelekileyo, isixa sesamente kufuneka akhawunti ngaphezu 30% yesixa esipheleleyo sezinto ezomileyo, kwaye 30% kufuneka ibe lelona xabiso liphantsi lokunyanga ubushushu besiqhelo. Xa ugalela kwisiza, Umlinganiselo wesamente kufuneka uphendule ngaphezulu 60% yezinto ezomileyo zizonke. Kuba ubushushu obuqhelekileyo ikhonkrithi enegwebu kunye noxinaniso ngezantsi 600 kg/m3, umlinganiselo wesamente akufanele ube ngaphantsi 70% yemathiriyeli iyonke. Xa ubuninzi bungaphantsi 400 kg/m3, umlinganiselo oqhelekileyo kufuneka uphendule ngaphezu kwe 90% yemathiriyeli eyomileyo iyonke.

Ezi zinto zilandelayo kufuneka ziqwalaselwe kuyilo lomlinganiselo wesamente:

(1) Iindidi zesamente. Iintlobo zesamente ezinamandla aphezulu kwangethuba nasemva kwexesha (njengesamente yasePortland ekhawulezayo kabini) inokunciphisa ngokufanelekileyo umyinge wesamente, kunye neentlobo zesamente ezinamandla asezantsi kade okanye amandla asezantsi kwangoko kufuneka zonyuse umlinganiselo wesamente;

(2) Ibakala lamandla lesamente. Isamente yomgangatho ophezulu wokuqina (njenge 42.5, 52.5, njl.) inokunciphisa isixa somlinganiso, kunye nesamente yomgangatho ophantsi kufuneka inyuse isixa sayo sokulinganisa;

(3) Umgangatho wesamente. Ukwenzela izityalo ezinkulu 'inkqubo eyomileyo yesamente ye-rotary kiln, umlinganiselo wokuxuba unokuncitshiswa ngokufanelekileyo, ngelixa izityalo ezincinci, I-shaft kiln Cement okanye isamente enomlinganiselo omkhulu wokuxuba kufuneka yandiswe ngokufanelekileyo;

(4) Ubuninzi kunye neemfuno zamandla emveliso. Uxinzelelo oluphantsi okanye iimfuno zamandla aphezulu kufuneka zonyuse umlinganiselo wesamente, ukuxinana okuphezulu okanye iimfuno zamandla aphantsi kunokunciphisa umlinganiselo wesamente;

(5) Ubushushu bokukhula kokuqala. Ubushushu bokuqala bokunyanga emva kokugalelwa (ukugalela) isezantsi (<25°C). The proportion of cement should be increased. When the initial curing temperature is high (25℃-45℃), the proportion of cement can be appropriately reduced. If steam curing or autoclave is used, it is still strong to reduce the proportion of cement;

(6) Ukwahluka kunye nomsebenzi we-micro-aggregate esebenzayo (umxube). Ukusetyenziswa kwe-micro-aggregates ephezulu kunokunciphisa umlinganiselo wesamente (ezifana ne-ultra-fine slag), ngelixa ukusetyenziswa kwe-micro-aggregates ephantsi-umsebenzi (njengothuthu lwempukane yesibini) inokunyusa umlinganiselo wesamente.

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