Dab tsi yog Sodium Gluconate Thiab Dab Tsi Ua Sodium Gluconate Exceptionally Benficiated rau pob zeb?

Sodium gluconate yog ib qho sib xyaw nrog cov tshuaj formula NaC₆H₁₁O₇, uas yog sodium ntsev ntawm gluconic acid. Cov hmoov dawb, dej-soluble no yog siv nyob rau hauv ntau yam kev lag luam. Ameslikas muab rho tawm los ntawm gluconic acid nyob rau hauv lub xyoo pua puv 19, sodium gluconate paub txog nws cov khoom zoo chelating thiab tau dav siv los ua tus neeg sawv cev chelate hauv ntau yam txheej txheem.

Sodium gluconate yog ib qho insoluble organic sodium ntsev hauv tsev neeg ntawm hydroxyl carboxylic acids, uas yog tsim los ntawm fermentation ntawm qabzib. Gluconate yog ib qho khoom los ntawm cov piam thaj oxidation thiab muaj nyob hauv cov xwm txheej. Cov neeg tsim khoom ntawm sodium gluconate ua cov txheej txheem no ntawm qhov loj, ua kom muaj ntsev ntau los muab kev lag luam. Vim yog cov khoom siv chelating ntawm sodium gluconate, nws tuaj yeem tsim cov complexes ruaj khov nrog cov hlau ions, yog li tiv thaiv cov hlau ions los ntawm kev cuam tshuam nrog lwm yam tshuaj.

Cov cuab yeej no tso cai rau sodium gluconate los ua lub luag haujlwm tseem ceeb hauv ntau qhov chaw ib puag ncig, xws li lub zog ruaj khov hauv cov khoom noj thiab dej haus, ua cov tshuaj ntxuav tes hauv cov khoom ntxuav, ua cov khoom siv tshuaj hauv kev lag luam tshuaj, thiab ua cov khoom siv ntxiv hauv tsev. cov ntaub ntawv. Hauv kev siv pob zeb, sodium gluconate txhim kho kev ua haujlwm thiab ua haujlwm ntev ntawm pob zeb los ntawm kev tswj cov tshuaj tiv thaiv ntawm cov pob zeb, yog li nqa cov txiaj ntsig tseem ceeb rau kev tsim kho kev lag luam.

Vim li cas sodium gluconate muaj txiaj ntsig zoo rau kev txhim kho kev ua haujlwm ntawm pob zeb? Raws li nws cov kev cuam tshuam ntawm cov tshuaj tiv thaiv thiab microstructure ntawm pob zeb, nws tuaj yeem piav qhia los ntawm ntau yam. Lawv muab tau los ntawm kev ua haujlwm, teeb tsa lub sijhawm, lub zog thiab kav ntev, thiab permeability.

1. Nyob rau hauv cov nqe lus ntawm kev txhim kho lub workability ntawm pob zeb, sodium gluconate, raws li ib tug dej reducer, yuav txhim khu lub fluidity ntawm pob zeb, vim hais tias sodium gluconate yuav txo tau cov attraction ntawm cov cement hais, yog li txo cov dej noj thaum tuav lub fluidity thiab workability ntawm pob zeb, ua kom yooj yim rau kev tsim thiab ua vaj tse.
2. Nyob rau hauv cov nqe lus ntawm kev ncua lub sij hawm teem ntawm pob zeb, sodium gluconate muaj ib qho kev ncua sij hawm, uas yog tshwj xeeb tshaj yog ib qho tseem ceeb nyob rau hauv kev tsim kho ntawm kub kub ib puag ncig los yog pob zeb uas yuav tsum tau thauj mus rau lub sij hawm ntev. Lub hauv paus ntsiab lus yog tias sodium gluconate inhibits hydration cov tshuaj tiv thaiv ntawm tricalci-silicic acid (C₂S) thiab dicalci-silicic acid (C₂S) hauv cov cement los ntawm adsorbing rau saum npoo ntawm cov cement, yog li ncua kev teeb tsa thiab cov txheej txheem hardening ntawm pob zeb.
3. Nyob rau hauv cov nqe lus ntawm kev txhim kho lub zog thiab durability ntawm pob zeb, sodium gluconate pab tswj cov hydration tus nqi ntawm cov cement thiab optimize lub microstructure ntawm cement-based cov ntaub ntawv thaum lub sij hawm hardening txheej txheem ntawm pob zeb. Tshwj xeeb tshaj yog nyob rau theem tom qab, sodium gluconate tuaj yeem txhawb kev tsim cov pob zeb ua kom zoo nkauj thiab ua kom muaj zog ntawm cov pob zeb sib xyaw ua ke ntawm cov cheeb tsam interrace.
4. Nyob rau hauv cov nqe lus ntawm kev txo cov permeability ntawm pob zeb, los ntawm optimizing lub microstructure ntawm cov cement pob zeb, sodium gluconate tuaj yeem txo cov porosity ntawm pob zeb, yog li txo nws cov permeability, txhim khu kev tiv thaiv ntawm pob zeb rau dej thiab tshuaj lom neeg, thiab txhim kho nws cov kav ntev thiab kev pabcuam lub neej.

Ua kom pom tseeb los ntawm cov ntaub ntawv kev sim tshwj xeeb, txoj kev tshawb fawb tau tsom mus rau qhov cuam tshuam ntawm SG ntawm qhov dej ntws, teeb tsa lub sijhawm, cua sov ntawm dej, thiab lub zog ntawm UHPC, nthuav tawm cov kev tshawb pom tseem ceeb hauv qab no.

1.Fluidity Txhim Kho: SG txhim kho qhov pib fluidity ntawm UHPC thaum lub sij hawm yas los ntawm inhibiting qhov tsim ntawm ettringite thaum ntxov (AFt) thiab ncua lub hydration tshua ntawm tricalcium silicate (C₃S) thiab dicalcium silicate (C₂S). Lub fluidity tsis poob qis hauv thawj teev. Thaum SG ntau npaum li cas mus txog lossis ntau dua 0.06%, qhov poob qis ntawm 30 thiab 60 feeb ob qho tib si qhia qhov nce ntxiv.

2. Lub Sijhawm Teeb Meem Ntxiv: SG ua rau lub sijhawm teem sijhawm ntawm UHPC thaum lub sijhawm teeb tsa thiab tawv tawv los ntawm inhibiting qhov tsim ntawm calcium hydroxide (CH). Ntawm SG ntau npaum li cas ntawm {{0}}.15%, lub sijhawm pib thiab zaum kawg yog 5.0 npaug thiab 4.5 npaug ntev dua, raws li piv rau pawg tswj hwm.

3. Lub zog loj hlob theem: Txawm hais tias lub zog ntawm UHPC txo qis heev nyob rau theem pib ntawm kev txhim kho lub zog (1 thiab 3 hnub) nrog kev nce hauv SG ntau npaum li cas, SG tuaj yeem txhawb kev tsim ntawm AFt ntawm qhov pores thiab aggregate interface nyob rau theem tom ntej, txo qhov porosity ntawm cov cement paste, thiab txhim kho lub zog compressive ntawm UHPC ntawm 28 hnub, 60 hnub, thiab 90 hnub. Qhov tseem ceeb, ntawm SG ntau npaum li cas ntawm 0.12%, lub zog ntawm 90 hnub yog nce los ntawm 13%.