Txoj kev tsim kho ntawm cov cement mortar mixing cog feem ntau suav nrog cov kauj ruam tseem ceeb xws li kev npaj cov khoom siv raw, ntsuas, sib tov, thiab tawm. Lub hauv paus yog los xyuas kom meej qhov sib xyaw proportions thiab sib tov sib xyaw.
Kev npaj raw khoom
Cement yuav tsum yog Portland cement ntawm qib 32.5 lossis siab dua, tshiab thiab tsis muaj pob; xuab zeb yuav tsum tau sieved los tswj cov av nkos; dej yuav tsum huv si thiab tsis muaj impurities. Admixtures (xws li dej-txo cov neeg ua hauj lwm thiab cov accelerators) yuav tsum tau npaj raws li qhov tsim nyog npaum li cas thiab muaj daim ntawv pov thawj tsim nyog.
Metering thiab pub
Tag nrho cov khoom siv raw yuav tsum raug ntsuas los ntawm qhov hnyav. Tso cai sib txawv: cement, dej, thiab cov khoom sib xyaw ± 1%, xuab zeb ± 2%.
Qhov kev pom zoo pub noj ib ntus yog: aggregate → cement → xuab zeb → dej. Yog tias cov khoom sib xyaw ntxiv, cov kua nplaum yuav tsum muab ntxiv ua ke nrog dej, thiab cov hmoov sib tov yuav tsum tau ntxiv ua ke nrog cov cement.
Kev sib tov
Ua ntej sib tov, ntxiv dej thiab khiav lub tov khoom khoob kom yaug nws, ces ntws tawm cov dej ntau dhau.
Lub sijhawm sib xyaw, pib los ntawm kev sib ntxiv ntawm tag nrho cov ntaub ntawv, feem ntau yuav tsum tsis pub tsawg tshaj 90 vib nas this; Thaum cov khoom sib xyaw ntxiv, qhov no yuav tsum tau ncua ntev li 30 vib nas this.
Siv cov khoom sib xyaw nrog kev ntsuas tsis siv neeg ua qhov tseem ceeb; ib qho kev sib xyaw ua ke yuav tsum tau muab tso rau ntawm - qhov chaw, thiab tus neeg raug xaiv yuav tsum saib xyuas cov khoom sib ntxiv.
Kev Tswj Xyuas Zoo
Lub slump thiab workability ntawm cov pob zeb tawm hauv lub tov khoom yuav tsum tau kuaj xyuas; yuav tsum tau hloov kho yog tias lawv tsis ua raws li qhov yuav tsum tau ua.
Kev poob qis yuav tsum tau kuaj xyuas tsawg kawg ob zaug ib zaug kom ntseeg tau tias nws ua tau raws li kev tsim kho.
Hauv thaj chaw uas nyob ntawm - qhov chaw sib tov tshuaj khib nyiab yog txwv tsis pub (xws li Guangzhou thiab Zhuhai), ua ntej - cov tshuaj khib nyiab yuav tsum tau siv.
Kev tu thiab tu
Tom qab txhua lub sij hawm tsim kho, tam sim ntawd ntxuav cov khib nyiab seem hauv lub tov khoom kom tsis txhob muaj clumping thiab cuam tshuam rau kev siv yav tom ntej.