Video: Portland cement yog xim dab tsi?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
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Zoo sib xws, dab tsi yog xim av Portland MAAs?
Cov yam ntxwv ntsuab- txho mus rau xim av xim ntawm Portland xis mas zoo tib yam los ntawm tus lej hloov pauv hauv nws cov tshuaj lom neeg muaj pes tsawg leeg. Cov no yog, nyob rau hauv qhov kev txiav txim ntawm cov xim yuav txo tau, chromium, manganese, hlau, tooj liab, vanadium, npib tsib xee thiab titanium.
Ib sab saum toj no, xim dab tsi portland cement qhuav? Nws tau ua kom tau raws li qhov tshwj xeeb ntawm ASTM C 150. Dawb Portland MAAs yog tsim los ntawm kev xaiv cov ntaub ntawv raw uas muaj qhov tsis txaus ntawm cov hlau thiab magnesium oxides-cov tshuaj uas muab cov cement rau nws txho xim
Dhau li, Xim Xim yog dab tsi?
Cement Qhov tseem ceeb muaj cov plua plav theem: ob calcium silicates, calcium aluminate thiab sib xyaw ua ke hu ua calcium aluminate ferrite (C4AF). Qhov no, nyeg, ua rau muaj kev hloov pauv hauv kev nqus ntawm lub teeb thiab cement tshwm nyob rau hauv nws cov yam ntxwv greenish-grey xim.
Qhov sib txawv ntawm Portland cement thiab hydraulic cement yog dab tsi?
Cement sib xyaw nrog cov khoom sib xyaw zoo tsim cov tshuaj khib rau masonry, lossis nrog xuab zeb thiab pob zeb, tsim ua vaj tsev. Hydraulic MAAs (eg., Portland cement ) teeb tsa thiab ua cov nplaum vim yog tshuaj lom neeg tshuaj nruab nrab cov khoom xyaw qhuav thiab dej.
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Qhov piv ntawm Portland cement rau xuab zeb yog dab tsi?
Ib qho piv txwv yog 1 feem cement, 2 seem xuab zeb, thiab 3 seem gravel (ua lag luam lo lus rau duav, thoob, lossis lwm yam khoom siv ntsuas). # Pib ntxiv dej rau hauv qhov sib tov maj mam, sib tov tsis tu ncua kom txog thaum nws dhau los ua yas txaus los tso rau hauv koj daim ntawv