Hnub Kawg:13, maj,2024

Raws li qhov kub thiab txias tseem nce ntxiv, lub caij nplooj ntoo hlav tuaj, thiab qhov tshwm sim hauv qab no yog qhov cuam tshuam ntawm kev hloov pauv ntawm qhov kub thiab txias ntawm qhov poob ntawm cov pob zeb. Nyob rau hauv no hais txog, peb yuav ua kom raug hloov kho thaum siv cov dej txo cov neeg ua haujlwm kom cov pob zeb ncav cuag qhov xav tau.

1. Polycarboxylate dej-txo cov neeg ua hauj lwm tseem muaj teeb meem nrog lawv cov adaptability rau cement. Rau cov cements ib leeg, tus nqi txo cov dej yuav tsawg thiab qhov poob qis yuav loj. Yog li ntawd, thaum qhov kev hloov pauv ntawm cov cement tsis zoo, kev sim sib xyaw thiab kev hloov ntawm cov pob zeb yuav tsum tau ua. dosage kom ua tiav cov txiaj ntsig zoo tshaj plaws.

Tsis tas li ntawd, qhov zoo thiab lub sijhawm cia ntawm cov cement tseem yuav cuam tshuam rau kev ua haujlwm ntawm polycarboxylate superplasticizer. Kev siv cov cement kub yuav tsum raug zam hauv kev tsim khoom. Yog tias cov cement kub yog tov nrog polycarboxylate dej-txo tus neeg sawv cev, thawj qhov kev poob qis ntawm cov pob zeb yuav yooj yim dua tawm, tab sis cov nyhuv slump-preserving ntawm cov khoom sib xyaw yuav tsis muaj zog, thiab cov pob zeb yuav tshwm sim. Kev poob sai sai.

2. Polycarboxylate dej-txo cov neeg ua haujlwm muaj kev nkag siab ntau dua rau kev hloov pauv ntawm cov khoom siv raw. Thaum cov khoom siv zoo xws li cov xuab zeb thiab pob zeb cov ntaub ntawv thiab cov khoom sib xyaw xws li cov hmoov tshauv ya thiab cov hmoov ntxhia hloov pauv loj, cov tshuaj txo cov dej polycarboxylate yuav raug muab sib xyaw nrog cov tshuaj txo cov dej polycarboxylate. Qhov kev ua tau zoo ntawm cov pob zeb yuav raug cuam tshuam rau qee qhov, thiab kev sim sib xyaw ua ke yuav tsum tau ua dua nrog cov ntaub ntawv hloov pauv los kho cov tshuaj kom ua tiav cov txiaj ntsig zoo tshaj plaws.

3. Polycarboxylate dej-txo tus neeg saib xyuas tshwj xeeb yog rhiab heev rau cov av nkos ntawm cov aggregate. Cov ntsiab lus av nkos ntau dhau yuav txo qhov kev ua haujlwm ntawm polycarboxylate dej-txo tus neeg sawv cev. Yog li ntawd, qhov zoo ntawm aggregates yuav tsum nruj me ntsis tswj thaum siv polycarboxylate superplasticizers. Thaum cov av nkos cov ntsiab lus sib sau ua ke nce, qhov ntau npaum ntawm polycarboxylate dej-txo tus neeg sawv cev yuav tsum tau nce.

4. Vim yog cov dej txo qis ntawm polycarboxylate dej-txo tus neeg saib xyuas, cov pob zeb ua pob zeb yog qhov tshwj xeeb rau kev siv dej. Yog li ntawd, kev siv dej ntawm cov pob zeb yuav tsum tau tswj nruj me ntsis thaum siv. Thaum cov nyiaj ntau dhau lawm, cov pob zeb yuav tshwm sim cais, los ntshav, tawv thiab cov ntsiab lus huab cua ntau dhau thiab lwm yam tshwm sim tsis zoo.

5. Thaum siv polycarboxylate dej-txo admixtures, nws raug nquahu kom tsim nyog ua kom lub sij hawm sib xyaw kom zoo (feem ntau yog ob zaug ntev li ib txwm siv cov khoom sib xyaw) thaum lub sij hawm tsim cov pob zeb, kom cov steric hindrance peev xwm ntawm polycarboxylate dej-txo admixture yuav ua tau. yooj yim dua exerted, uas yog yooj yim rau kev tswj ntawm pob zeb slump nyob rau hauv ntau lawm. Yog tias lub sijhawm sib tov tsis txaus, nws muaj feem ntau tias qhov poob ntawm cov pob zeb xa mus rau qhov chaw tsim kho yuav loj dua qhov kev poob ntawm cov pob zeb tswj ntawm qhov chaw sib tov.

6. Nrog rau lub advent ntawm lub caij nplooj ntoos hlav, qhov kub sib txawv ntawm nruab hnub thiab hmo ntuj hloov heev. Hauv kev tswj hwm ntau lawm, peb yuav tsum nco ntsoov ua tib zoo saib xyuas cov kev hloov pauv ntawm cov pob zeb ua pob zeb thiab kho cov tshuaj sib xyaw kom haum raws sijhawm (ua tiav cov ntsiab lus ntawm kev sib xyaw qis ntawm qhov kub thiab qhov sib xyaw ntawm qhov kub siab).