Dej Reducer Superplasticizer hauv Kev Tsim Kho

Dej-txo superplasticizers yog ib qho tseem ceeb additives nyob rau hauv kev tsim kho kev lag luam, tshwj xeeb tshaj yog nyob rau hauv pob zeb formulations. Cov admixtures no yog tsim los txhim kho kev ua haujlwm ntawm cov pob zeb sib xyaw thaum txo cov ntsiab lus dej, ua rau kom muaj zog, ruaj khov, thiab lwm yam khoom tsim nyog. Nov yog qhov tseem ceeb ntawm cov dej-txo superplasticizers hauv kev tsim kho:

1. Txhais thiab Ua Haujlwm:

• Dej-txo Superplasticizer: Ib qho kev sib xyaw uas tso cai rau txo qis hauv cov ntsiab lus dej ntawm cov pob zeb sib xyaw yam tsis muaj kev cuam tshuam nws txoj haujlwm. Superplasticizers disperse cov cement hais kom zoo dua, ua rau kev txhim kho ntws thiab txo viscosity.

2. Lub luag haujlwm tseem ceeb:

• Kev Txo Dej: Lub luag haujlwm tseem ceeb yog txo cov dej-rau-cement piv hauv cov pob zeb sib xyaw, ua rau muaj zog dua thiab ua haujlwm ntev.
• Txhim Kho Kev Ua Haujlwm Zoo: Superplasticizers txhim khu kev ua haujlwm ntawm pob zeb los ntawm kev txhim kho nws cov dej ntws, ua kom yooj yim rau qhov chaw thiab zoo li qub.
• Ua kom muaj zog: Los ntawm kev txo cov ntsiab lus ntawm cov dej, superplasticizers ua rau muaj zog ntau dua, ob qho tib si ntawm compressive thiab flexural zog.
• Txhim kho Durability: Txhim kho compaction thiab txo permeability ua rau lub durability ntawm cov pob zeb, ua rau nws resistant rau tej yam ib puag ncig.

3. Hom Superplasticizers:

• Sulfonated Melamine-Formaldehyde (SMF): Paub txog nws cov dej-txo muaj peev xwm thiab ua haujlwm tau zoo.
• Sulfonated Naphthalene-Formaldehyde (SNF): Muaj cov khoom tawg yooj yim thiab muaj txiaj ntsig zoo hauv kev txo cov dej.
• Polycarboxylate Ether (PCE): Paub txog nws cov dej-txo kev ua haujlwm siab, txawm tias tsawg npaum li cas, thiab tau siv dav hauv cov pob zeb ua haujlwm siab.

4. Qhov zoo:

• Txhim Kho Kev Ua Haujlwm Zoo: Superplasticizers muab kev ua haujlwm siab rau cov khoom sib xyaw ua ke, ua rau lawv ntws tau yooj yim dua thiab yooj yim rau kev ua haujlwm thaum tso.
• Txo cov ntsiab lus dej: Lub ntsiab kom zoo dua yog qhov txo qis hauv dej-rau-cement piv, ua rau muaj zog thiab kav ntev.
• Txhim kho Cohesion: Superplasticizers txhim kho kev sib koom ua ke ntawm cov pob zeb sib xyaw, tso cai rau kev sib koom ua ke zoo dua yam tsis muaj kev sib cais.
• Compatibility nrog Admixtures: Superplasticizers feem ntau tau sib xws nrog lwm cov khoom sib xyaw ua ke, tso cai rau ntau yam thiab kho cov qauv.
• Siab Thaum Ntxov Muaj Zog: Qee cov superplasticizers tuaj yeem ua rau kev teeb tsa sai thiab kev loj hlob thaum ntxov hauv pob zeb.

5. Cov cheeb tsam thov:

• Ready-Mix Concrete: Superplasticizers feem ntau yog siv rau hauv kev tsim cov pob zeb sib xyaw ua ke txhawm rau txhim kho nws cov dej ntws thiab ua haujlwm tau zoo thaum thauj thiab tso.
• High-Performance Concrete: Nyob rau hauv daim ntawv thov uas muaj zog, durability, thiab tsawg permeability yog ib qho tseem ceeb, xws li nyob rau hauv high-kev ua tau zoo pob zeb sib tov.
• Precast thiab Prestressed Concrete: Superplasticizers feem ntau yog siv rau hauv kev tsim cov precast thiab prestressed pob zeb cov ntsiab lus uas zoo tshaj plaws nto tiav thiab thaum ntxov zog yog ib qho tseem ceeb.

6. Dosage thiab Compatibility:

• Dosage: Qhov kev pom zoo ntawm superplasticizer yog nyob ntawm cov khoom xws li kev sib xyaw tsim, hom cement, thiab ib puag ncig. Kev noj ntau dhau yuav tsum zam.
• Compatibility: Superplasticizers yuav tsum tau sib xws nrog lwm cov pob zeb sib xyaw siv hauv kev sib xyaw. Kev ntsuam xyuas kev sib raug zoo feem ntau yog ua los xyuas kom meej tias kev sib xyaw ua ke ntawm cov khoom sib xyaw ua tau raws li qhov xav tau.

7. Kev txiav txim siab:

• Mix Design: Tsim kom muaj kev sib xyaw ua ke, xav txog hom cement, aggregates, thiab ib puag ncig, yog qhov tseem ceeb rau kev siv superplasticizers zoo.
• Cov Kev Cai Kho Kom Zoo: Cov kev coj ua kom zoo ua lub luag haujlwm ua kom tau raws li qhov xav tau ntawm cov pob zeb. Kev kho kom zoo yog qhov tseem ceeb rau kev txhim kho lub zog zoo.

Cov dej-txo superplasticizers tau cuam tshuam rau kev lag luam pob zeb los ntawm kev tsim cov pob zeb ua haujlwm siab nrog kev txhim kho kev ua haujlwm, lub zog, thiab kav ntev. Kev nkag siab zoo ntawm lawv hom, kev ua haujlwm, thiab cov txheej txheem kev thov yog qhov tseem ceeb rau kev ua tiav cov txiaj ntsig zoo hauv kev tsim vaj tsev.