Yuav ua li cas thaum mortar dries?

Thaum mortar dries, txheej txheem hu ua hydration tshwm sim. Hydration yog cov tshuaj tiv thaiv ntawm cov dej thiab cov cementitious cov ntaub ntawv nyob rau hauv lubmortar sib tov. Cov khoom tseem ceeb ntawm mortar, uas dhau los ua dej, suav nrog cov cement, dej, thiab qee zaum ntxiv cov khoom ntxiv lossis cov khoom sib xyaw. Txoj kev ziab ziab muaj cov theem tseem ceeb hauv qab no:

1. Mixing thiab Application:
   • Thaum xub thawj, mortar yog tov nrog dej los tsim ib qho chaw ua haujlwm. Cov tshuaj no tom qab ntawd siv rau qhov chaw rau ntau yam kev tsim kho, xws li bricklaying, pobzeb installation, lossis rendering.
2. Hydration Reaction:
   • Thaum thov, lub mortar tau txais cov tshuaj tiv thaiv hu ua hydration. Cov tshuaj tiv thaiv no suav nrog cov ntaub ntawv cementitious hauv mortar khi nrog dej los tsim hydrates. Cov khoom siv cementitious hauv feem ntau cov mortars yog Portland cement.
3. Kev teeb tsa:
   • Raws li cov tshuaj tiv thaiv hydration zuj zus, lub mortar pib teeb. Kev teeb tsa yog hais txog qhov hardening lossis stiffening ntawm cov tshuaj khib nyiab. Lub sijhawm teeb tsa tuaj yeem sib txawv raws li yam xws li hom cement, ib puag ncig, thiab muaj cov khoom ntxiv.
4. Kev kho:
   • Tom qab teeb tsa, lub mortar tseem muaj zog los ntawm txoj kev hu ua curing. Curing yuav tsum tswj kom muaj dej txaus nyob rau hauv lub mortar rau ib lub sij hawm ntev kom tso cai rau ua tiav cov tshuaj tiv thaiv hydration.
5. Kev Txhim Kho Lub Zog:
   • Thaum lub sij hawm, lub mortar ua tiav nws lub zog tsim raws li cov tshuaj tiv thaiv hydration txuas ntxiv. Qhov kawg lub zog yog cuam tshuam los ntawm cov khoom xws li cov khoom sib xyaw ntawm cov tshuaj khib nyiab, kev kho mob, thiab cov khoom siv zoo.
6. Qhuav (Nto evaporation):
   • Thaum qhov kev teeb tsa thiab kho cov txheej txheem txuas ntxiv mus, qhov chaw ntawm cov tshuaj khib yuav tshwm sim kom qhuav. Qhov no yog vim qhov evaporation ntawm cov dej los ntawm qhov chaw. Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov tshuaj tiv thaiv hydration thiab kev txhim kho lub zog tseem nyob hauv cov tshuaj khib nyiab, txawm tias qhov chaw qhuav qhuav.
7. Ua kom tiav ntawm Hydration:
   • Feem ntau ntawm cov tshuaj tiv thaiv hydration tshwm sim hauv thawj ob peb hnub mus rau lub lis piam tom qab thov. Txawm li cas los xij, cov txheej txheem yuav txuas ntxiv ntawm tus nqi qis dua rau lub sijhawm txuas ntxiv.
8. Thaum kawg Hardening:
   • Thaum cov tshuaj tiv thaiv hydration tiav, lub mortar ua tiav nws qhov kawg hardened xeev. Cov khoom tsim tau muab cov qauv kev txhawb nqa, adhesion, thiab durability.

Nws yog ib qho tseem ceeb kom ua raws li kev kho kom zoo los xyuas kom meej tias lub mortar tau txais nws lub zog tsim thiab kav ntev. Kev ziab sai sai, tshwj xeeb tshaj yog thaum pib ntawm kev ywg dej, tuaj yeem ua rau muaj teeb meem xws li txo lub zog, tawg, thiab tsis zoo adhesion. Cov dej noo txaus yog qhov tseem ceeb rau kev txhim kho tag nrho ntawm cov ntaub ntawv cementitious hauv mortar.

Cov yam ntxwv tshwj xeeb ntawm cov mortar qhuav, nrog rau lub zog, durability, thiab cov tsos, nyob ntawm seb yam xws li kev sib xyaw tsim, kev kho mob, thiab cov txheej txheem siv.