Dab tsi yog Superplasticizers rau?

Superplasticizers (SPs), tseem hu ua high-range water reducers, yog indispensable additives nyob rau hauv niaj hnub pob zeb ntau lawm. Lawv yog ib qho tseem ceeb heev rau kev tsim cov pob zeb ua kom muaj zog thiab muab cov pob zeb ua rau nws tus kheej, ua tsaug rau lawv lub peev xwm los txo cov ntsiab lus dej ntau yam tsis muaj kev cuam tshuam rau kev ua haujlwm.

Lub luag haujlwm ntawm Superplasticizers

Plasticizersyog cov tshuaj sib txuas uas tso cai rau kev tsim cov pob zeb nrog kwv yees li 15% cov ntsiab lus dej tsawg.Superplasticizers, ntawm qhov tod tes, tuaj yeem txo cov ntsiab lus dej los ntawm 30% lossis ntau dua, ua rau lawv qhov tseem ceeb rau cov pob zeb ua haujlwm siab. Cov additives no yog siv nyob rau hauv me me, feem ntau ib tug ob peb qhov hnyav feem pua, thiab lawv kuj retard qhov chaw thiab hardening ntawm pob zeb, muab ntau yooj yooj yim thaum lub sij hawm thov.

Hom Superplasticizers

Superplasticizers tuaj yeem categorized raws li lawv cov kev ua haujlwm dispersing thiab hom kev ua:

Ionic Interactions (Electrostatic Repulsion):

Lignosulfonates: Thawj tiam ntawm cov dej reducers.

Sulfonated Synthetic Polymers: Naphthalene lossis melamine formaldehyde condensates, suav tias yog tiam thib ob.

Cov nyhuv Steric:

Polycarboxylates-Ether (PCE) Synthetic Polymers: Cov neeg thib peb tiam superplasticizers muaj cov hlua txuas ntxiv uas txhim kho lawv cov peev xwm tawg.

Cov txiaj ntsig ntawm Superplasticizers

Superplasticizers yog qhov tseem ceeb thaum cov cement particle suspensions zoo yuav tsum tau txhim kho cov yam ntxwv ntws (rheology) ntawm pob zeb. Lawv qhov sib ntxiv tso cai rau qis dej-rau-cement piv tsis cuam tshuam rau qhov sib xyaw ua haujlwm. Qhov no enables zus tau tej cov self-consolidating thiab high-kev ua tau zoo pob zeb. Qhov qis dej-rau-cement piv yog qhov tseem ceeb rau kev ua tiav cov pob zeb ntau dua thiab ua haujlwm ntev, vim nws txo cov porosity ntawm cov pob zeb tawv tawv, yog li txhim kho nws lub zog compressive.

Kev siv niaj hnub ntawm Superplasticizers

Qhov sib ntxiv ntawm superplasticizers thaum lub sij hawm kev thauj mus los, ib qho kev txhim kho tsis ntev los no, tau txhim kho kev tswj hwm zoo. Automated slump tswj systems tam sim no tso cai rau kev saib xyuas ntawm cov pob zeb tshiab slump kom txog thaum tso tawm yam tsis txo nws qhov zoo. Qhov kev tsim kho tshiab no ua kom muaj kev ua tau zoo thiab ua tau zoo ntawm qhov chaw ua haujlwm.

Taw qhia Borida's Superplasticizers

NtawmBorida, peb txaus siab rau peb tus kheej ntawm kev muab cov khoom zoo superplasticizers uas ua tau raws li kev xav tau ntawm kev tsim kho kev lag luam. Peb cov khoom kab muaj xws li:

Borida PCE Superplasticizers: Peb Polycarboxylate Ether (PCE) superplasticizers yog tsim los rau kev ua haujlwm siab tshaj plaws, muab cov yam ntxwv zoo heev thiab kev ua haujlwm siab hauv kev siv pob zeb.

Borida Naphthalene Superplasticizers: Zoo tagnrho rau ntau hom pob zeb, cov superplasticizers ua kom cov dej txo qis thiab txhim kho kev ua haujlwm.

Borida Melamine Superplasticizers: Cov no zoo meej rau cov ntawv tshwj xeeb uas xav tau kev ua haujlwm zoo thiab ua haujlwm ntev.

Peb cov superplasticizers yog tsim los txhim kho pob zeb muaj zog, txo qhov porosity, thiab txhim kho tag nrho cov kav ntev. Los ntawm kev sib koom ua ke ntawm Borida's superplasticizers rau hauv koj cov pob zeb sib xyaw, koj tuaj yeem ua tiav kev ua tau zoo, txawm tias koj tab tom ua haujlwm ntawm cov pob zeb ua haujlwm siab lossis kev ua haujlwm ntawm tus kheej.