Hnub Kawg: 12 Lub Ib Hlis, 2023
Cov dej txo cov dej feem ntau yog cov anionic surfactants, thiab tam sim no feem ntau siv hauv kev ua lag luam suav nrog polycarboxylic acid raws li cov dej txo cov neeg ua haujlwm, naphthalene raws li cov dej txo cov neeg ua haujlwm, thiab lwm yam. Thaum tuav cov pob zeb zoo tib yam, lawv tuaj yeem txo cov dej siv rau kev sib tov. , txhim kho pob zeb ua kom muaj zog, thiab txo qhov tshwm sim ntawm cov kab nrib pleb. Lawv ua lub luag haujlwm tseem ceeb hauv kev tswj hwm kev ua tau zoo. Txawm li cas los xij, kev sib xyaw ua ke sib xyaw nrog cov dej txo cov neeg ua haujlwm yuav ntsib teeb meem xws li kev ua raws li lub tank thiab qhov chaw tsis raug. Txhawm rau zam qhov tshwm sim ntawm ntau yam teeb meem, Freeman yuav txheeb xyuas qhov ua rau thiab kev daws teeb meem ntawm ib qho los ntawm ib qho.

Ib. Yuav sticking phenomenon:
Phenomenon: Ib feem ntawm cov cement mortar adheres rau ntawm phab ntsa ntawm lub tog raj kheej tov khoom, ua rau cov pob zeb tsis sib npaug thiab tsis tshua muaj tshauv ntawm cov pob zeb, ua rau cov pob zeb nplaum.
Yog vim li cas tsom xam:
Kev nplaum nplaum feem ntau tshwm sim tom qab ntxiv cov retarders thiab dej txo cov neeg ua hauj lwm, los yog nyob rau hauv nruas mixers nrog zoo sib xws axial diameter ratios.
Cov ntsiab lus ntawm kev txiav txim:
(1) Ua tib zoo saib xyuas thiab tshem tawm cov pob zeb seem;
(2) Ua ntej, ntxiv cov khoom sib xyaw thiab qee cov dej sib tov, tom qab ntawd ntxiv cov cement, dej seem, thiab dej txo tus neeg sawv cev los sib tov;
(3) Siv lub taub hau loj loj piv los yog quab yuam sib tov.

Pseudo coagulation tshwm sim
Phenomenon: Cov pob zeb tom qab tawm hauv lub tshuab sai sai poob nws cov fluidity thiab txawm tias tsis tuaj yeem nchuav.
Yog vim li cas tsom xam:
(1) Cov ntsiab lus tsis txaus ntawm calcium sulfate thiab gypsum hauv cov cement ua rau dej sai sai ntawm calcium aluminate;
(2) Cov dej txo tus neeg sawv cev muaj qhov tsis zoo rau cov cement no;
(3) Thaum cov ntsiab lus ntawm triethanolamine siab tshaj 0.05-0.1%, qhov pib pib yog ceev tab sis tsis yog qhov kawg.
Cov ntsiab lus ntawm kev txiav txim:
(1) Hloov hom cement;
(2) Yog tias tsim nyog, kho cov khoom sib xyaw thiab ua kom muaj kev sib xyaw ua ke;
(3) Ntxiv Na2SO4 tivthaiv rau cov tshuaj tov.
(4) Txo qhov sib tov kub