Hom Khoom Siv Khoom Siv Khoom Siv
Sep 10, 2024
Nkag siab txog cov khoom siv ntxiv: Ib qho tseem ceeb hauv kev tsim kho niaj hnub
Concrete additives, tseem hu ua admixtures, yog cov khoom siv ntxiv rau cov pob zeb sib xyaw kom hloov nws cov khoom thiab txhim kho kev ua haujlwm. Cov tshuaj no tau qhia thaum sib tov, tso cai rau cov kws tsim kho kom ua tiav kev ua haujlwm zoo dua qub, ua kom muaj zog ntxiv, lossis sijhawm teem sijhawm sai dua. Los ntawm kev siv cov khoom siv ntxiv no, cov phiaj xwm kev tsim kho tuaj yeem ua tau raws li qhov xav tau tshwj xeeb thiab cov teeb meem ib puag ncig.
Cov khoom siv pob zeb feem ntau tuaj yeem raug cais raws li lawv cov teebmeem ntawm cov khoom sib xyaw tshiab lossis cov pob zeb tawv tawv. Ntawm no, peb yuav tshawb nrhiav ntau hom tshuaj ntxiv thiab lawv lub luag haujlwm hauv kev txhim kho kev ua tau zoo.
1. Qhob Deflocculants: Txhim kho kev ua haujlwm yam tsis muaj dej ntxiv
Concrete deflocculants yog cov chav kawm tseem ceeb ntawm cov khoom siv ntxiv los txhim kho kev ua haujlwm ntawm cov pob zeb tsis tas yuav nce nws cov ntsiab lus dej. Los ntawm dispersing cement hais, deflocculants txo cov kev sib txhuam sab hauv hauv cov pob zeb sib tov, ua kom yooj yim tuav thiab tso.
Cov txiaj ntsig tseem ceeb:
Txhim kho flowability: Deflocculants txo cov viscosity ntawm pob zeb, tso cai rau smoother pouring thiab ntau npaum qhov chaw.
Kev txuag dej-cement ratio: Kev tswj xyuas qhov qis dej-cement piv kom ntseeg tau tias cov pob zeb khaws nws lub zog tsim thiab ua haujlwm ntev, uas yog qhov tseem ceeb rau kev ua haujlwm zoo.
Qhov zoo tshaj plaws siv Case:
Cov kev tsim kho loj loj uas yuav tsum tau ua cov pob zeb ua haujlwm zoo heev.
Cov ntawv thov uas tswj cov dej-cement piv yog qhov tseem ceeb rau kev tuav lub zog.
2. Plasticising Admixtures: Advanced Deflocculants rau Optimal Flow
Plasticising admixtures coj kev ua haujlwm ntawm deflocculants ib kauj ruam ntxiv, muab kev ua haujlwm zoo tshaj plaws hauv ntau qhov sib xws, los ntawm mos mus rau kua. Cov additives no feem ntau yog raws li polycarboxylate ethers thiab muaj ib tug robust deflocculant txiav txim uas ho txhim kho qhov yooj yim ntawm pob zeb installation.
Cov txiaj ntsig tseem ceeb:
Txhim khu kev ua haujlwm: Plasticisers muab cov khoom zoo tshaj plaws, txo cov kev siv zog uas yuav tsum tau ua thaum muab tso rau, tshwj xeeb tshaj yog nyob rau hauv txoj kev formwork.
Txhim kho pob zeb txhim kho: Cov pob zeb ua kom zoo sib xws tsis muaj dej ntxiv, ua kom nws lub zog thiab kev ua haujlwm zoo.
Daim ntawv thov npaj sib xyaw: Feem ntau cov plasticising admixtures tau muab tso rau hauv cov pob zeb sib xyaw ua ke, tshem tawm qhov xav tau ntawm qhov chaw sib xyaw.
Ideal Applications:
Qhob siv nyob rau hauv cov ncauj lus kom ntxaws architectural designs los yog loj deg cheeb tsam yuav tsum tau ib tug sib xws.
Cov chaw tsim kho uas muaj kev nkag tau yooj yim lossis cov formworks nyuaj uas qhov yooj yim ntawm kev tso kawm yog qhov tseem ceeb.
3. Air-Entraining Agents: Tiv thaiv cov pob zeb hauv qhov dej khov-thaw
Cov neeg ua haujlwm hauv huab cua yog qhov tseem ceeb rau cov pob zeb uas raug rau lub voj voog khov-thaw thiab cov tshuaj de-icing. Los ntawm kev qhia txog kev tswj hwm micro huab cua voids, cov neeg ua haujlwm no txo qhov kev pheej hmoo ntawm kev tawg vim qhov nthuav dav ntawm cov dej thaum nws khov rau hauv cov pob zeb matrix.
Cov txiaj ntsig tseem ceeb:
Frost tsis kam: Lub micro cua voids muab qhov chaw rau cov dej khov kom nthuav dav, tiv thaiv kev ua kom siab sab hauv uas tuaj yeem ua rau tawg.
Nce durability: Pob zeb nrog cov khoom siv cua nkag tau zoo dua rau kev siv nyob rau hauv ib puag ncig uas tuaj yeem ua rau txias txias thiab hnyav ya raws.
Qhov zoo tshaj plaws siv Case:
Cov choj, txoj kev loj, thiab pavements raug rau lub caij ntuj no hnyav.
Cov ntug hiav txwv dej thiab cov dej hiav txwv uas tsis tu ncua ntawm cov dej noo thiab khov-thaw mus tas li.
4. Dej-Resisting Admixtures: Txhim khu kev ruaj ntseg tiv thaiv noo noo nkag mus
Water-resisting admixtures, tseem hu ua waterproofing agents, txhim kho pob zeb ua hauj lwm rau dej infiltration. Los ntawm thaiv lub qhov hws hauv cov pob zeb, cov khoom siv no tiv thaiv cov qauv ntawm cov khoom tsis zoo uas nqa los ntawm dej, xws li chlorides thiab sulfates, uas tuaj yeem ua rau cov pob zeb ua kom tsis zoo nyob rau lub sijhawm.
Cov txiaj ntsig tseem ceeb:
Nce impermeability: Cov admixtures no txo cov dej permeability, tiv thaiv pob zeb los ntawm kev puas tsuaj los ntawm dej.
Ua kom lub neej ntev: Cov qauv kho nrog cov dej-tiv thaiv admixtures tswj lawv txoj kev ncaj ncees ntev dua, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig dej.
Ideal Applications:
Cov qauv hauv av zoo li hauv qab daus, qhov av, thiab cov chaw cia khoom.
Cov khoom sib xyaw uas yuav raug submerged los yog nyob rau hauv kev sib cuag nrog dej, xws li cov pas dej da dej thiab cov chaw kho dej.
5. Teem Retarders: ncua sij hawm ua vaj tse rau Precision thiab Flexibility
Kev teeb tsa retarders feem ntau yog siv rau hauv cov xwm txheej uas lub sijhawm teem sijhawm yuav tsum tau txuas ntxiv. Qhov no tuaj yeem yog qhov tseem ceeb hauv qhov chaw kub kub lossis thaum ua haujlwm nrog cov haujlwm loj uas yuav tsum tau ua haujlwm ntev dua los tiv thaiv cov pob qij txha.
Cov txiaj ntsig tseem ceeb:
Extended workability: Kev teeb tsa retarders qeeb cov txheej txheem hydration ntawm cov cement, tso cai rau ntau lub sijhawm los tso thiab ua tiav cov pob zeb.
Txhim kho tswj: Cov tshuaj ntxiv no tiv thaiv kev teeb tsa ntxov ntxov, tshwj xeeb tshaj yog nyob rau hauv huab cua kub, kom ntseeg tau tias cov haujlwm loj lossis cov haujlwm ua tiav tiav seamlessly.
Ideal Use Cases:
Cov huab cua kub qhov chaw ceev ceev tuaj yeem cuam tshuam cov qauv kev ncaj ncees ntawm cov pob zeb.
Cov dej loj loj, xws li choj decks lossis cov pob zeb loj loj, uas yuav tsum tau ua haujlwm ntev.
Nco tseg: Overdosing teem retarders tej zaum yuav muaj kev cuam tshuam, tig lawv mus rau hauv accelerators thiab ua rau kom ceev ceev lub sij hawm. Kev noj tshuaj kom raug yog qhov tseem ceeb.
6. Teem Accelerators: Ua kom lub sijhawm tsim kho kom nrawm
Kev teeb tsa accelerators yog qhov tseem ceeb thaum qhov kev teeb tsa ceev thiab yuav tsum tau nce lub zog thaum ntxov. Cov additives no feem ntau yog siv rau hauv kev kho thaum muaj xwm txheej ceev, kev siv tshuaj tua kab mob, lossis thaum huab cua txias ua rau lub sijhawm kho kom zoo.
Cov txiaj ntsig tseem ceeb:
Kev teeb tsa sai dua: Accelerators ho txo lub sij hawm xav tau rau cov pob zeb tsim, ua rau lawv zoo tagnrho rau kev kho sai lossis cov phiaj xwm lub sijhawm.
Qhov zoo ntawm huab cua txias: Nyob rau hauv qhov chaw txias dua qhov kev kho yuav siv sij hawm ntev dua, accelerators pab tswj lub sijhawm ncua sij hawm los ntawm kev ua kom cov dej ntws nrawm.
Ideal Applications:
Kev kho thaum muaj xwm txheej ceev yuav tsum tau hloov ceev ceev.
Kev tsim kho huab cua txias uas lub sijhawm teem sijhawm yuav ncua sijhawm.
