Kev siv ntau npaum ntawm cov cement mortar polycarboxylic acid superplasticizer hmoov
Oct 20, 2023
Kev siv ntau npaum ntawm cov cement mortar polycarboxylic acid superplasticizer hmoov
Rau qhov ntau npaum li cas ntawm cov cement mortar polycarboxylic acid superplasticizer, qee cov neeg siv khoom yuav tsis siv cov khoom tom qab kev yuav khoom, txawm hais tias nws paub tias nws tuaj yeem ua rau cov dej txo qis tshaj li 35%, ntau lub tsev tsim khoom siv, cov khoom siv tau zoo. , tab sis yog tias nws tsis tsim nyog thiab kev tshawb fawb tsim nyog, ces nws lub luag haujlwm yuav raug txo kom tsawg, qhov zoo solubility ntawm cov hmoov superplasticizer thiab tus nqi sai dua. Vim tias cov hmoov nplej tau yooj yim hauv kev thauj mus los, nws tuaj yeem raug xa mus thoob tebchaws, thiab nyob rau hauv cov ntaub ntawv ntawm tib cov dej ntxiv rau cov pob zeb hauv kev siv, nws zoo heev txhim kho cov kua dej thiab feem ntau siv hauv kev ua lag luam.
Qhov tseeb, txawm hais tias nws yog niam cawv lossis hmoov, kev siv cov nyhuv zoo ib yam, cov neeg siv khoom yuav txhawj xeeb txog seb cov nyhuv ntawm cov hmoov zoo li cas tom qab kev yuav khoom, koj tuaj yeem qhia rau txhua tus tias ntev npaum li qhov tsim nyog siv, thov so kom paub tseeb tias. kev yuav khoom, tau kawg, hauv kev siv cov khoom siv hmoov qhuav, qhov kev pom zoo ntau npaum li cas ntawm {{0}}.2 ~ 0.3% ntawm cov khoom siv cement, cov ntaub ntawv no tsuav yog tsis muaj qhov sib txawv ntau dhau. teeb meem, Tom qab dissolution es tsis txhob ntawm cov kua polycarboxylic acid superplasticizer yog siv, nws yuav tsum tau hloov dua siab tshiab raws li qhov tseeb cov ntsiab lus siv tom qab dissolution, uas yog, tus nqi ntawm cov kua muab tso rau ntau, tus nqi ntawm cov khoom hmoov yog tib yam, yog li ntawd tus niam. cawv thiab hmoov siv tib yam, cov hmoov yog ntau dua ntawm cov txheej txheem hnyav, tab sis kev thauj mus los muaj qhov zoo dua.
Thaum kawg, rau qhov tshwj xeeb ntawm polycarboxylic acid superplasticizer siv, qhov no txawv raws li tus nqi, koj qhov kev tsim kho yuav loj, ntawm chav kawm, nws yog ib qho kev sib xyaw ua ke, tuaj yeem txhim kho lub zog ntawm cov cement, nyob rau hauv cov ntaub ntawv ntawm tib tus nqi. ntawm cov dej ntxiv rau cov pob zeb, zoo heev txhim kho qhov ntws, kom kev tsim kho sai dua, ntawm chav kawm, nws kuj muaj qhov zoo ntawm kev tsim kho, yog tias koj tab tom npaj ib qhov kev tsim kho, Tej zaum yuav xav txog kev siv nws, kuv lub tuam txhab tsim nrog cov dej txo qis, siab. collapsible hom hmoov polycarboxylic acid dej reducer, lub teb chaws tus me nyuam, cov chaw tsim khoom ncaj qha, tus nqi ntawm qhov project yog qis dua kev siv lwm hom khoom, Kuv nkoj koj txuag nyiaj, kev lag luam dej reducer.
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Los ntawm Pete
Link: https://zhuanlan.zhihu.com/p/638370813
Source: Zhihu
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