Yuav ua li cas yog cov khoom xyaw ntawm MAAs?

Maas - ib qho ntawm qhov yooj yim lub tsev ntaub ntawv siv nyob rau hauv cov cheeb tsam no txij ancient sij hawm. Cov MAAs muaj pes tsawg leeg muaj xws li ib tug xov tooj ntawm inorganic tshuaj uas nyob rau hauv kev sib cuag nrog dej tsim ib tug thiaj li hu ua tshuaj. Nrog ib tug ntau yam ntawm tej lub cev zoo, thaum qhuav cov tshuaj hardens.

Maas yog ua nyob rau hauv ob peb txoj kev, tiam sis feem ntau ntawm lawv yog cov ob lub ntsiab siv: qhuav thiab ntub dej. Nws ntau lawm - kim heev thiab lub zog-intensive txheej txheem. Lub thiaj li hu ua sludge nyob rau hauv nws thawj daim ntawv yog loaded rau hauv ib tug tshwj xeeb qhov cub, thiab ces sintering lub clinker. Thaum lub sij hawm tsim txoj kev lub cub tawg yog tsis tu ncua tig, yog li ntawd lub clinker nws yog uniformly tov. Qhov no pub rau ib tug ntau homogeneous sib tov thiab evenly melted.

Cov MAAs pes tsawg leeg nrog hlau oxide. Nws muaj ib tug heev loj tej yam nyob rau hauv tag nrho cov zoo ntawm lub resulting MAAs sib tov. Maas zoo tshaj plaws - nrog hlau oxide cov ntsiab lus ntawm hais txog 10%. Thaum no piv oxides muaj feem ntau dej siab ntxim rau cov tsim minerals. Txawm li cas los, tag nrho cov tsim nyog ntsuas, li ntawd, yuav kom tus nqi ntawm cov hlau oxide nyob rau hauv lub cement yog txo thiab nws zuag qhia tag nrho.
Qhov siab tshaj plaws pub tus nqi yog suav tias yog 25% ntawm cov hlau oxide. Raws li koj paub, MAAs kuj yog siv rau kev tsim kho los yog lub tsim ntawm tshav kub-resistant vaj tse cov lug. Nyob rau hauv cov ntaub ntawv no, lub xub ntiag ntawm hlau oxides yog tsis tsim nyog. Nyob rau hauv tas li ntawd, tus nqi ntawm cov hlau muaj ib tug ncaj qha feem nyob rau MAAs xim: lub lighter nws yog, qhov tsawg feem pua ntawm cov additives. Grey MAAs, rau hauv sib piv, muaj nyob rau hauv nws cov qauv lub siab tshaj plaws cov ntsiab lus ntawm cov hlau oxides.

Yog hais tias ntxiv lauj cov tshuaj nyob tus yeees ntawm cov xis mas, nws tseem tau mus ntes nws thiab alumina. Qhov loj tshaj npaum li cas ntawm alumina muaj nyob rau hauv lub cement muaj pes tsawg leeg, muab nws cov khoom ntawm tshav kub tsis kam. Qualitatively, xis mas cov ntsiab lus ntawm cov tshuaj yeeb dej caw yog hais txog 60%.

Nyob rau hauv tas li ntawd mus rau cov oxides, ib tug xis mas muaj pes tsawg leeg muaj xws li calcium oxides, pob zeb ntais, magnesium. Maas producers koom sib ntaus sib tua yog li ntawd lawv cov khoom tsis muaj ib tug chromium oxide, uas yog ib tug active hlau thiab los rau hauv undesired tshuaj tshua.

Nyob ntawm seb muaj pes tsawg leeg ntawm MAAs, nws yog muab faib mus rau hauv hom muaj ntau lub zog: gipsoshlakovy, ceev chaw, tshauv, alumina, gipsoglinozemisty thiab waterproof.

Cov MAAs muaj pes tsawg leeg los txhim kho nws cov qualities ntxiv ntau yam active mineral additives. Lawv yog cov dag los yog tej yam ntuj tso keeb kwm. Additives nyob rau hauv cement muab nws txawv zog: nws pab txoj kev workability thiab nce turnover, txhim kho scalability, txo shrinkage, plasticity thiab hloov cov kev ceev. Tsis tas li ntawd, qhov sib ntxiv ntawm cov tshuaj txhawb durability thiab lub dag lub zog ntawm MAAs slurries.

Additives nyob rau hauv cement no tsis tsuas siv nyob rau hauv thiaj li yuav txhim kho ib co ntawm nws tej lub zog, tab sis kuj yuav hloov, piv txwv li, cov xim. Rau cov hom phiaj, koj muaj peev xwm siv tsis tu ncua xim.