Cov Formula ntawm Polycarboxylic Superplasticizer Niam Cawv yog dab tsi?

1. Lub tswv yim thiab kev ua haujlwm ntawm Superplasticizer tov

Superplasticizer tov yog hais txog cov kua concentrated ua los ntawm ib qho tshwj xeeb formulation ntawm calcium chloride, polycarboxylate superplasticizer, thiab lwm yam additives. Nws yog ib qho khoom siv feem ntau siv hauv kev tsim ua vaj tse. Lub luag haujlwm tseem ceeb ntawm cov tshuaj superplasticizer yog txo cov dej-cement piv, txhim kho cov slump thiab flowability ntawm pob zeb, yog li txhim kho kev ua haujlwm thiab lub zog ntawm cov pob zeb.

2. Kev tsim thiab kev npaj cov txheej txheem ntawm Superplasticizer tov

Common Formulations ntawm Superplasticizer Solution:

(1) Rau cov kev daws teeb meem superplasticizer raws li polycarboxylate superplasticizer, cov qauv feem ntau suav nrog:
Polycarboxylate superplasticizer 10%–30%, Calcium chloride 1%–5%, Lignosulfonate 0.5%–2%, Glycerol 2%–5%, Dej 55%–85%.

(2) Rau cov kev daws teeb meem superplasticizer raws li aliphatic superplasticizers, cov qauv feem ntau suav nrog:
Aliphatic superplasticizer 10%–30%, Calcium chloride 1%–5%, Lignosulfonate los yog polyethylene glycol 0.5%–2%, Glycerol 2%–5%, Dej 55%–85%.

Txoj kev npaj ntawm Superplasticizer tov:

(1) Ntxiv cov superplasticizers uas xav tau, cov khoom siv ntxiv, thiab dej rau hauv lub tank sib xyaw hauv qhov kev faib ua feem thiab sib tov kom huv si.
(2) Tom qab sib tov, sau cov tshuaj concentrated rau hauv ntim ntim, thiab dilute raws li xav tau thaum siv.

3. Lub luag haujlwm thiab qhov cuam tshuam ntawm cov Cheebtsam hauv Superplasticizer Solution

Lub luag haujlwm ntawm Calcium Chloride:

Calcium chloride, uas yog ib qho ntawm cov khoom tseem ceeb hauv cov tshuaj superplasticizer, txhawb cov hydration cov tshuaj tiv thaiv ntawm cov cement, txhim kho lub zog thaum ntxov ntawm cov pob zeb, thiab txhim kho qhov chaw thiab lub zog ntawm cov pob zeb, tshwj xeeb tshaj yog nyob rau hauv qis kub.

Lub luag haujlwm ntawm Polycarboxylate Superplasticizer:

Polycarboxylate superplasticizer tuaj yeem chemically adsorb rau cov cement hais, txo cov coagulation ntawm cov cement hais, yog li txhim kho cov flowability thiab slump ntawm cov pob zeb.

Lub luag haujlwm ntawm Additives:

Additives xws li lignosulfonate thiab polyethylene glycol txhim kho cov dispersion thiab stability ntawm cov tshuaj superplasticizer, kom ntseeg tau cov kev ua tau zoo thiab kev ruaj ntseg ntawm cov kev daws teeb meem.

4. Kev ceev faj rau kev siv tshuaj Superplasticizer

Superplasticizer tov yuav tsum muab cia rau hauv qhov chaw qhuav, txias, thiab qhov cua zoo thiab yuav tsum tsis txhob muab cia nrog lwm cov tshuaj.

Cov tshuaj superplasticizer yuav tsum tau siv raws li cov qauv tsim thiab cov proportions. Cov formulation thiab ntau npaum yuav tsum tsis txhob hloov arbitrarily.

Thaum siv cov tshuaj superplasticizer, tus nqi ntawm cov dej thiab lub sijhawm sib xyaw ntawm cov pob zeb yuav tsum tau hloov kho raws li cov xwm txheej tshwj xeeb kom ua tiav cov txiaj ntsig zoo tshaj plaws ntawm cov dej-txo thiab kev ua tau zoo.