Laimu-pozzolan simenti: kupanga ndi ntchito

zakuthupi Pozzolan simenti ndi ufa mawonekedwe ndi kumanga katundu, akuchokera chibanthu alipo ndi zina zosiyanasiyana. Kulemera akalandira dongosolo pulasitiki pa kukhudzana ndi madzi ndi solidifies pa kuyanika.

kupanga

Pa zomera apadera anapanga ya laimu-pozzolan simenti, kupanga chimene chimafuna ndondomeko mkombero zonse. Mosiyana ndi nyumba mafakitale ndi kuti ali gawo kwa umapezeka ntchito akupera ndi kuyanika zina. Iwo amachita mchere zinthu zachilengedwe - gliezh, diatomite, n'zothekanso ntchito ndi zinthu za kupanga mphamvu.

A kuchuluka kwa zinthu zina zopezeka mu zinthu, monga simenti pozzolan. Kapangidwe ndi chiwerengero cha zosakaniza zimakhudza makhalidwe opaleshoni. Kusintha nthawi solidification pa kukukuta gypsum anawonjezera, kuchuluka kwake sayenera oposa 3% ya kulemera okwana.

kapangidwe

Total umapezeka, pokhala njira yotchuka kwambiri ya zotsimikizira laimu-pozzolana simenti, ali ofala mawonekedwe a kugaya chibanthu ndi gypsum ndi mchere zinthu zambili mu wapadera mphero Mipikisano. Pamaso zosakaniza awa wosweka ndi kubweretsa chofunika chinyezi msinkhu mu kuyanika ng'oma. Dziwani kuti kuwonjezera chiŵerengero cha gawo zina amachepetsa mtengo wa nkhaniyo.

Laimu-pozzolana simenti solidification ndondomeko amakhudzidwa kusintha kutentha. Pa kutentha kwa madigiri 14 osakaniza anali yodziwika ndi solidification pang'onopang'ono. Dongosololi pafupifupi mabasi pamene yozungulira kutentha ndi madigiri 5. Chifukwa cha ichi complicates kwambiri kugwiritsa ntchito mfundo za nyengo yozizira danga lotseguka.

Pa pozzolan simenti chomwecho anamvetsetsa mofulumira kwambiri pa apamwamba kutentha ndi kuposa alipidwa Portland simenti. Kuonjezera ntchito zigawo zikuluzikulu chopangidwa, iwo akhoza pansi zina kutentha mankhwala pa kutentha osiyanasiyana madigiri 80-90.

Ubwino ndi kuipa

Pozzolan simenti, imene katundu kulola kuti apange pa solidification zinthu monga kashiamu hydrosilicate hydroaluminate ndi zosiyana zotsatira ang'onoang'ono kuposa anthu aumbike mwa simenti ochiritsira amapereka kukana kwambiri zotsatira za saline ndi madzi abwino. Mwa ubwino ndi Dziwani izi:

• pozzolan simenti amakhala ndi mapangidwe ming'alu ochepa;
• mkulu mlingo wa guluu wolimba kwa konkire zolimba zinthu;
• zosavuta kusamalira;
• kwambiri makhalidwe kogwirizana;
• The osakaniza pozzolanic ndipamene kuchuluka kwambiri konkire kapena zidina ndi mowa chomwecho zakuthupi ndi zina zosakaniza.

Koma sizinali popanda zovuta:

• kufunika kugwiritsa ntchito madzi gauging;
• yosungirako yaitali amachepetsa ntchito zinthu zopezeka.

Zimene muyenera kudziwa

Popanda simenti sachita ntchito iliyonse nyumba, pamene Russia ndi mtsogoleri kupanga nkhaniyi. Aliyense wa Kusiyana kwake mankhwala mapangidwe awo kapangidwe a gulu la silicates, ndi zowonjezera alipo mu zikuchokera mu mawonekedwe a pakachitsulo woipa. Monga maziko a simenti mutuluka chibanthu amene anayesedwa ya laimu ndi dongo, mfuti zakale. Diatomaceous lapansi amachita monga zonyansa ndi. Inakhazikitsidwa m'zaka kupanga komanso kugwiritsa ntchito fumbi simenti malinga yaitali kuchititsa chitukuko chifuwa ndi ku nthawi zina - pneumoconiosis, anapereka owonjezera pakachitsulo woipa wosanjikiza, limene limapangidwa simenti pozzolanic.

Silicosis ndi aakulu mawonekedwe pneumoconiosis ndi Ambiri anapeza pa chitukuko yogwira zomangamanga ndi makampani migodi chifukwa chakuti zikuchokera ntchito amakhudza ambiri khwatsi fumbi. Matendawa ambiri mwa anthu zokhudzana ndi processing wa lubwe, kupanga ngalandezi yomanga ceramic ndi mankhwala refractory.

njira zina yopanga

Pozzolan simenti, amene katundu komanso amadalira ndondomeko, zikhoza kupangidwa osati zomera komanso malo yomanga okha ntchito umapezeka-kuyanika maofesi. Iwo zouma zowonjezera mchere, ndi nthaka ndi wothira chochuluka, n'zothekanso munthawi yomweyo umapezeka zosakaniza. Izi amachepetsa kuchuluka kwa magalimoto, natengedwa yekha chibanthu ndi mchere zinthu okha amapangidwa m'dera yomanga. Mwa ubwino ngati njira tisaiwale kotheka kusintha zikuchokera zinthu mwatsopano anapanga ndi fillers. Koma kugwiritsa ntchito malowo apadera yilungamitsidwa okha mabuku yaikulu yomanga.

Pozzolan simenti: ntchito

Nkhani Ambiri ntchito anagula mu chilengedwe cha simenti pomwe zinthu konkire mobisa ndi ntchito m'madzi, amene kugwirizana ndi sulphate ndi madzi abwino. Angagwiritsidwe ntchito madzi ndi zinthu structural, mapangidwe amene yodziwika ndi kofunikira kwambiri chinyezi. Ndi ntchito wamba mu zomangamanga zomangamanga hayidiroliki anapeka vnutrimassivnogo konkire.

Ntchito mu nyumba konkire lapadziko okha chifukwa makhalidwe otsika chisanu kukana, makamaka ndi solidification proviso mpweya. Izi zachokera kuyanika kudya, okhoza kulepheretsanso wa solidification ndi kuyambitsa shrinkage kwambiri. Komanso osafunika chilengedwe cha zinthu structural wa pozzolan simenti, ngati ntchito pansi thawing zodziwitsa ndi yozizira koopsa, kuyanika ndi hydration.

mphamvu

Pozzolan simenti zikuchokera, katundu, ntchito yomwe chosiyana mphamvu ya zinthu zoduliratu, ndi cholimba, ndi chifukwa cha kuchuluka kashiamu silicate anapanga. Chifukwa cha nkhani yodziŵika ndi kuwonjezeka yaitali mu mphamvu chifukwa kuchepetsa ukonde kulemera okwana simenti, chinthu chonsecho athandizira zosakaniza zina. Mofulumira kuumitsa taonera hydrate mwa kuchita ndi okusayidi kashiamu ndi silika yogwira, chifukwa wopeza ndalama mphamvu zofanana ndi simenti grout ena. Choncho, kukhalabe mu malo lonyowa.

kufunika madzi

Pozzolan simenti, ozikidwa pa diatomite ndi Tripoli, amakhala ndi kuwonjezeka madzi, zikubweretsa pang'onopang'ono nthawi solidification komaliza. Kupanga simenti slurry chofunika kuchuluka kwa madzi komanso kumawonjezera malingana ndi mchere zinthu yogwira. lawo Ndikulichepetsa zimawonedwa pamaso pa zina zikuchokera kwa tuff ndi njirayo.

Kuwonjezeka kufunika madzi ndi osafunika chifukwa kumathandiza kuti mowa kwambiri wa mtundu uwu wa simenti poyerekeza ndi ena. Kuwonjezera ntchentche phulusa sasintha kuchuluka kwa madzi wofunikila kusakaniza. Iwo akhoza wothira onse konkire Kusakaniza ndi lokha simenti. Khalidwe la chuma osati yafupika ngakhale phulusa adzakhala m'malo ndi gawo.