Superplasticizer Sib Nraus
Dec 20, 2019
Cov teeb meem tshwm sim uas tshwm sim los ntawm qhov tsis sib xws ntawm cov cement thiab cov dej rov ua dua tshiab yog: kev ua haujlwm nrawm nrawm nrawm nrawm, dhau ntawm kev ua haujlwm sai / qeeb ntawm kev teeb tsa, thiab qhov tsawg ntawm lub zog ntawm qhov nce. Ntau zaus, txawm tias muaj qhov tsis sib xws ntawm ib hom tshuaj thiab ib qho pob ntawm ib qho sib tov sib xyaw ua ke, qhia tias qhov teeb meem yog qhov nyuaj, thiab xav tau kev nkag siab ntxiv. Ntxiv mus, kev ua haujlwm siab concretes, uas yog nyob rau hauv dav siv niaj hnub no, yuav luag ib txwm koom ua ke ib qho ntxhia admixture los yog muab tub lim xws li silica fume, ya cov hmoov tshauv thiab limestone hmoov. Qhov no ntxiv ua rau lub cev ntawm lub cev-tshuaj lom neeg tus cwj pwm ntawm cov ua tiav raws li cov pob zeb ua yeeb yaj kiab admixtures ua lub luag haujlwm tseem ceeb hauv kev hloov pauv ntawm cov dej muaj tshuaj lom neeg thiab muaj dej dawb nyob rau thaum ntxov ntawm cov pob zeb ua vaj tse.