HPMC (hydroxypropyl methylcellulose) yog cov khoom siv cellulose ether uas tau siv dav hauv cov khoom siv hauv tsev, tshwj xeeb tshaj yog ua lub luag haujlwm tseem ceeb hauv mortar. HPMC hloov mortar yog cov khoom siv hauv tsev uas ntxiv HPMC ua ib qho ntxiv rau cov tshuaj khib nyiab. Nws muaj ntau yam kev siv thiab muaj txiaj ntsig zoo hauv kev tsim kho.
1. Txhim kho kev tsim kho
HPMC hloov mortar qhia tau hais tias kev tsim kho zoo dua thaum lub sijhawm tsim kho. Ua ntej, HPMC tuaj yeem txhim kho cov dej tuav ntawm mortar. Nyob rau hauv ib txwm mortar, dej yooj yim evaporates los yog absorbed los ntawm lub hauv paus cov ntaub ntawv, ua rau cov mortar poob txaus noo noo ua ntej hardening, cuam tshuam nws lub zog thiab durability. Los ntawm kev txhim kho cov dej tuav lub peev xwm ntawm cov mortar, HPMC xyuas kom meej tias cov mortar muaj dej txaus los koom nrog cov tshuaj tiv thaiv dej thaum lub sij hawm hardening txheej txheem, yog li txhim kho qhov kawg lub zog thiab durability.
Qhov thib ob, HPMC tuaj yeem txhim kho kev ua haujlwm ntawm mortar. HPMC muaj cov nyhuv thickening thiab lubricating, ua rau lub mortar yooj yim rau kev tsim. Tshwj xeeb tshaj yog thaum kev khiav hauj lwm ntawm phab ntsa los yog nyob rau hauv high altitudes, lub fluidity thiab adhesion ntawm lub mortar yog ho txhim khu kev qha, txo cov kev tsim kho nyuaj thiab siv zog siv. Nyob rau tib lub sijhawm, HPMC tuaj yeem faib cov mortar kom sib npaug, txo qhov delamination thiab cais cov mortar thaum siv, thiab txhim kho kev tsim kho ntawm mortar.
2. Txhim kho kev sib raug zoo
HPMC hloov mortar kuj qhia tau hais tias muaj txiaj ntsig zoo hauv kev sib raug zoo. Cov tshuaj mortar tau txwv tsis pub ua rau cov khoom siv hauv paus tom qab kho, thiab ua rau muaj teeb meem xws li hollowing thiab cracking. Tom qab ntxiv HPMC, lub zog sib txuas ntawm cov mortar tau txhim kho zoo thiab nws tuaj yeem ua tau zoo dua rau saum npoo ntawm ntau yam substrates. Txawm hais tias nws yog pob zeb, masonry lossis lwm yam khoom siv hauv tsev, HPMC hloov mortar tuaj yeem tsim cov txheej txheem muaj zog. Zoo tiv thaiv hollowing thiab tawg.
Tsis tas li ntawd, HPMC kuj tseem tuaj yeem txhim kho qhov kev ua haujlwm ntawm cov khoom khib nyiab. Tshwj xeeb tshaj yog thaum tso cov vuas luaj ceramic los yog pob zeb, HPMC hloov mortar tuaj yeem tiv thaiv kom tsis txhob ntog ntawm cov vuas luaj los yog pob zeb thiab ua kom cov smoothness thiab firmness tom qab paving. Qhov no muaj qhov tseem ceeb ntawm daim ntawv thov rau cov khoom siv kho kom zoo nkauj, xws li cov pob zeb qhuav qhuav ntawm cov phab ntsa sab nrauv lossis cov vuas luaj ceramic rau hauv av.
3. Txhim khu kev ua kom tawg
HPMC hloov mortar muaj kev ua haujlwm zoo heev. Ntxiv HPMC rau mortar tuaj yeem cuam tshuam qhov tsim ntawm cov kab nrib pleb. HPMC txo cov evaporation sai ntawm cov dej los ntawm kev txhim kho cov dej tuav ntawm cov mortar, yog li txo qhov ziab kom qhuav los ntawm kev poob dej. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog rau kev tsim kho loj lossis cov vaj tsev uas raug rau cov kev mob qhuav rau lub sijhawm ntev.
Tsis tas li ntawd, cov nyhuv toughening ntawm HPMC kuj pab txhim kho qhov tawg tsis kam ntawm mortar. HPMC tuaj yeem tsim cov qauv siv hluav taws xob microscopic hauv cov tshuaj khib kom ua kom lub zog ntawm cov mortar, yog li tiv thaiv kev ntxhov siab sab nraud thiab txo qhov tshwm sim ntawm cov kab nrib pleb. Tshwj xeeb tshaj yog nyob rau sab nrauv phab ntsa rwb thaiv tsev, qhov tawg tsis kam ntawm HPMC hloov mortar plays lub luag haujlwm tseem ceeb hauv kev txhim kho tag nrho cov kav ntev ntawm lub cev.
4. Txhim kho huab cua tsis kam
HPMC hloov mortar kuj muaj cov huab cua zoo heev thiab tuaj yeem ua haujlwm ruaj khov nyob rau hauv ntau yam huab cua hnyav. Qhov sib ntxiv ntawm HPMC ua rau cov tshuaj khib nyiab zoo dua khov-thaw tsis kam thiab UV tsis kam, ncua kev pab cuam lub neej ntawm mortar. Nyob rau hauv cov cheeb tsam txias, HPMC hloov mortar tuaj yeem tiv thaiv kev puas tsuaj ntawm lub voj voog khov-thaw thiab tiv thaiv kom khov-thaw tev tawm ntawm cov tshuaj khib nyiab.
Nyob rau tib lub sijhawm, HPMC tseem tuaj yeem txhim kho qhov impermeability ntawm mortar los tiv thaiv kev nkag ntawm cov dej noo thiab lwm yam khoom tsis zoo, yog li tiv thaiv lub tsev tsim los ntawm corrosion thiab puas. Qhov no ua rau HPMC hloov mortar tshwj xeeb tshaj yog tsim rau sab nrauv phab ntsa waterproofing, ya raws-pov thawj thiab lwm yam dej num los xyuas kom meej lub sij hawm ntev thiab kev nyab xeeb ntawm lub tsev.
5. Kev tiv thaiv ib puag ncig thiab kev tsim kho kom ruaj khov
Thaum kawg, HPMC hloov mortar muaj kev ua haujlwm zoo ib puag ncig. HPMC yog cov khoom tsis muaj tshuaj lom, tsis muaj teeb meem ntsuab uas yuav tsis ua rau muaj kuab paug rau ib puag ncig. Nyob rau tib lub sijhawm, HPMC hloov mortar tuaj yeem txo cov cement siv thaum lub sijhawm tsim khoom thiab siv, txo cov pa roj carbon dioxide emissions, thiab pab kev tsim kho kev lag luam kom muaj kev loj hlob zoo.
Kev tsim kho kom zoo thiab ua haujlwm ntev ntawm HPMC hloov mortar tuaj yeem txo cov nqi tsim kho thiab kev saib xyuas, ntxiv rau nws qhov zoo ntawm ib puag ncig. Qhov no muaj txiaj ntsig tseem ceeb hauv cov ntsiab lus tam sim no ntawm kev txhawb nqa vaj tsev ntsuab thiab kev lag luam qis carbon.
HPMC hloov kho mortar muaj ntau yam kev siv thiab kev ua tau zoo hauv kev tsim kho. HPMC hloov mortar tau qhia tau zoo heev nyob rau hauv cov nqe lus ntawm kev tsim kho, kev sib raug zoo kev ua tau zoo, tawg kuj thiab huab cua tsis kam. Nyob rau tib lub sijhawm, nws cov kev tiv thaiv ib puag ncig thiab cov yam ntxwv ntawm kev txhim kho kom ruaj khov kuj ua rau nws yog ib feem tseem ceeb ntawm cov khoom siv hauv tsev niaj hnub. Nrog rau kev txhim kho txuas ntxiv ntawm kev tsim kho thev naus laus zis thiab kev txhim kho txuas ntxiv ntawm kev lag luam xav tau, daim ntawv thov kev cia siab ntawm HPMC hloov mortar yuav dav dua.
Post lub sij hawm: Aug-29-2024