1.1 Cov qauv no siv rau kev faib thiab npe ntawm cov cement qhob admixtures thiab txhais txhua lub npe admixture. Txhua yam khoom uas ua tau raws li lub ntsiab lus ntawm cov khoom sib xyaw ua ke hauv Tshooj 2 thiab 3 ntawm tus qauv no yuav tsum yog ib pawg ntawm cov qauv no thiab muab lub npe.
Cov qauv no tseem siv tau rau cov cement paste lossis mortar admixtures.
1.2 Txhua qhov sib xyaw yog txhais raws li ib lossis ntau lub zog uas nws muaj thiab muaj npe raws li nws txoj haujlwm tseem ceeb. Compound admixtures muaj ntau tshaj ib lub luag haujlwm tseem ceeb thiab muaj npe raws li ntau tshaj ib txoj haujlwm.
1.3 Concrete admixtures yog cov khoom ntxiv thaum lub sij hawm sib xyaw ua ke los txhim kho cov khoom ntawm pob zeb. Cov koob tshuaj yuav tsum tsis pub tshaj 5% ntawm cov cement loj (tshwj tsis yog nyob rau hauv cov xwm txheej tshwj xeeb).
1.4 Cov qauv no yog hais txog cov txheej txheem thoob ntiaj teb ISO/DIS 7690.
Kev Taw Qhia Rau Cov Khoom Siv Uas Siv Tau
Apr 26, 2024
Tso lus
