Hom thiab cov haujlwm ntawm cov pob zeb ua ruaj khov
Jul 03, 2025
I. Kev faib tawm los ntawm cov haujlwm tseem ceeb
Admixtures rau kev txhim kho lub zog rheological ntawm cov qhob tshiab, nrog rau cov dej ntws ib txwm, siab {{0} {{{} {}}}} Cov pa hluav taws xob siab {}}}} ent utraining reducers, thiab nqus cov neeg sawv cev.
Admixtures rau kev tswj hwm lub sijhawm thiab cov khoom tawv ntawm cov pob zeb, suav nrog retarders, retarding dej reducers, retarding siab- lub zog tso dej, thiab cov neeg sawv cev ua kom ceev.
Admixtures rau kev txhim kho lub durability ntawm cov pob zeb ua, suav nrog huab cua - utraining cov neeg sawv cev, cov pa dej tsis muaj pa, corrosion inhibitors, thiab ntxhia monixtures.
Admixtures rau kev txhim kho lwm yam khoom ntawm cov pob zeb, suav nrog cov tshuaj tiv thaiv kab mob, cov neeg sawv cev, cov neeg sawv cev, ua kom zoo nkauj adpixtures, thiab morix}
Ii. Hom thiab cov haujlwm ntawm cov pob zeb ua ruaj khov
Ib txwm reducer: Txo cov ntsiab lus dej sib xyaw thaum tswj cov swb.
High - cua dej reducer: Zoo heev txo cov dej sib xyaw cov ntsiab lus hauv tib qho poob, lossis ua rau muaj kev nce siab ntau dua rau hauv tib cov ntsiab lus dej.
Thaum Ntxov muaj zog tus neeg sawv cev: Ua kom nrawm thaum ntxov lub zog kev txhim kho ntawm cov pob zeb.
Tus ceev nyiaj: Ntev lub rooj siv lub sijhawm ntawm cov pob zeb ua.
CUA -} utraining Tus Neeg Sawv Cev: Qhia txog cov lej ntawm cov khoom sib txuam loj, ruaj khov, thiab kaw micro cua npuas rau hauv cov qhob pob zeb thaum ua ke, uas nyob hauv cov pob zeb tawv.
Ceev faj tus neeg sawv cev: Pab kom cov pob zeb ua kom teeb tsa thiab ua kom sai.
Thaum ntxov lub zog dej reducer: Muaj ob lub zog thaum ntxov thiab dej {- roj zog.
Retarding Dej Reducer: Muaj ob qho tib si retarding thiab dej - muaj cov haujlwm.
Rov qab ua kom muaj siab - cua dej reducer: Muaj ob qho tib si retarding thiab siab - khiav dej - txo cov haujlwm.
Huab cua - entroting reducer: Sib txuas cua - entraining thiab ywg - txo cov khoom.
Tus neeg sawv cev waterproofing: Txhim kho cov impermability ntawm xis mas cug thiab qhob pob zeb ua, txo kev puas tsuaj hauv hydrostatic siab.
Corrosion Inhibitor: Suppresses lossis mitigates qhov corrosion ntawm kev txhawb nqa hlau lossis lwm yam me me hauv cov pob zeb.
Roj -} Ua Rau Tus Neeg Sawv Cev: Ua cov pores loj ntawm cov pob zeb los ntawm tshuaj lom neeg cov tshuaj lom zem uas tso pa roj thaum sib tov.
Cov Neeg Sawv Cev Txhawb: Ua rau qee yam ntim nthuav dav hauv pob zeb.
Cov tshuaj tiv thaiv kab mob: Tso cai ua pob zeb ua kom tawv tawv ntawm sub - xoom} XOOM} XOOM} XOOM} XOOM} XOOM} XOOM} XOOM} XOOM} XOOM} XOOM} XOOM }້ອນ tsis kam thiab muaj zog nyob rau lub sijhawm.
Tus neeg sawv cev xim: Siv los tsim cov pob zeb ua vaj tse nrog cov xim ruaj khov.
Tus neeg sawv cev tso tseg: Txhim kho qhov tsis muaj zog ntawm cov qhob.
Dej -} Tuav tus neeg sawv cev: Txhim kho cov dej ua kom muaj peev xwm ua kom muaj zog ntawm kev ua vaj tse.
Teeb - tuav tus neeg sawv cev: Luv lub sij hawm lub sij hawm ntawm cov qhob sib xyaw.
Flocculating Tus Neeg Sawv Cev: Txhim kho viscosity thiab tiv thaiv kev sib cais ntawm cov cement thiab aggregates nyob rau hauv underwater siv.
Shrinkage - reducing tus neeg sawv cev: Txo cov pob zeb ua kom shrinkage.
Kev poob siab -} Tuav tus neeg sawv cev: Txo qis qis poob thaum lub sijhawm.
Tus neeg sawv cev tuab: Ua kom cov viscosity ntawm cov pob zeb sib xyaw.
III. Muaj nuj nqi ntawm Insixtures
1. Txhim kho cov khoom siv thaum lub sijhawm yas ntawm qhob, tshuaj khib, thiab cement muab tshuaj txhuam
① Txhim kho kev ua haujlwm tsis nce cov dej hauv dej, lossis txo cov ntsiab lus dej thaum tswj cov haujlwm;
Txo qis tus nqi ntshav;
③ Ua kom sib xyaw ua ke thiab txo qhov sib cais;
④ Cov ntsiab lus huab cua;
Plequvive lub sijhawm -} kav dej qis poob;
⑥ Ua txhim kho lub sijhawm tsis muaj peev xwm;
⑦ txhim kho los tiv thaiv -}} Washout kev ua tau zoo thaum Underwater dej.
2. Txhim kho cov khoom siv thaum lub sijhawm teeb tsa thiab tawv
① Cov sijhawm luv luv lossis lub sijhawm ntev;
② ncua kev haus dej lossis txo cov cua sov ntawm kev kub, qis dua kub thiab ntau dua;
③ Npaj ua lub zog ntxov;
Tsim kom muaj lub zog thaum ntxov ntawm sub - xoom} xoom kom yooj yim rau kev txhim kho khov kho.
3. Txhim kho cov khoom tom qab ua kom tawv nqaij thiab thaum lub sijhawm ua haujlwm
① Lub zog (compressive, tensile, flexural, thiab shear);
Ua kom txhim kho Bord zog ntawm cov qhob thiab hlau lub zog;
Teev kom txhim kho txoj hlua khi ua kom lub zog tshiab thiab cov pob zeb qub qub;
④ txhim kho ceev thiab cov khoom siv tsis muaj dej tsis muaj dej;
⑤ Txhim kho khov khov - thaw tsis kam;
⑥ Ua rau qee qhov kev nthuav dav ntawm kev nthuav dav;
⑦ Pab txhim kho kom tau ruaj khov;
Tiv thaiv ua alkali -}} agregate cov kev cuam tshuam;
⑨ inhibit corrosion ntawm kev siv hluav taws xob sab hauv thiab cov hlau uas xav tau;
⑩ lwm yam haujlwm, xws li npaj cov xim av thiab muaj cov pob zeb ua.