Hnub Kawg: 26 Lub Plaub Hlis, 2022

Cov teebmeem ntawm lub tshuab ua xuab zeb zoo thiab admixture adaptability ntawm pob zeb zoo

Cov niam pob zeb thiab cov tshuab tsim cov tshuab ua cov xuab zeb hauv cov cheeb tsam sib txawv heev. Kev nqus dej ntawm lub tshuab ua xuab zeb cuam tshuam rau kev poob qis ntawm cov pob zeb rau qee qhov, thiab cov ntsiab lus ntau dhau ntawm cov av nkos hauv cov xuab zeb yuav tsis tsuas cuam tshuam lub zog ntawm cov pob zeb, tshwj xeeb tshaj yog cov khoom rov qab. Elastic lub zog thiab durability, uas ua rau cov phenomenon ntawm hmoov ntawm cov pob zeb nto, thiab kuj unfavorable rau cov nqi tswj ntawm cov khoom cog. Lub fineness modulus ntawm tam sim no tsim cov xuab zeb yog ib qho tseem ceeb 3.5-3.8, los yog txawm 4.0, thiab gradation yog heev tawg thiab tsis tsim nyog. Qhov kev faib ua feem ntawm 1.18 thiab 0.03mm yog qhov tsawg heev, uas yog ib qho kev sib tw rau cov twj tso kua mis.

1. Thaum lub sij hawm tsim cov xuab zeb ua tshuab, cov ntsiab lus ntawm cov hmoov zeb zeb yuav tsum nruj me ntsis tswj kom txog li 6%, thiab cov ntsiab lus ntawm av nkos yuav tsum tsis pub dhau 3%. Cov ntsiab lus ntawm pob zeb hmoov yog ib qho zoo ntxiv rau cov tshuab ua cov xuab zeb tawg.

2. Thaum npaj cov pob zeb, sim ua kom muaj qee yam ntawm cov hmoov pob zeb kom ua tiav qhov gradation tsim nyog, tshwj xeeb tshaj yog tswj cov nyiaj siab tshaj 2.36mm.

3. Ntawm qhov chaw ua kom ntseeg tau lub zog ntawm cov pob zeb, cov xuab zeb yuav tsum tau tswj kom zoo, qhov feem ntawm cov pob zeb loj thiab me me yuav tsum tsim nyog, thiab cov pob zeb me me tuaj yeem tsim nyog.

4. Lub tshuab ntxhua khaub ncaws xuab zeb pib siv flocculant los nag thiab tshem tawm cov av nkos, thiab feem ntau ntawm cov flocculant yuav nyob twj ywm hauv cov xuab zeb tiav. Lub siab molecular hnyav flocculant muaj qhov tshwj xeeb zoo ntawm cov dej txo tus neeg sawv cev, thiab cov dej ntws thiab poob ntawm cov pob zeb kuj tseem ceeb tshwj xeeb thaum cov khoom sib xyaw ua ke yog ob npaug.

Influence of Admixture and Admixture Adaptability on Concrete Quality

Fais fab nroj tsuag ya tshauv twb tsis tshua muaj, thiab milled ya tshauv tau yug los. Cov lag luam uas muaj lub siab zoo yuav ntxiv ib feem ntawm cov hmoov tshauv nyoos. Dub-hearted lag luam yog tag nrho cov pob zeb hmoov. Loj, qhov kev ua si yog qhov pib ntawm 50% mus rau 60%. Tus nqi ntawm limestone hmoov tov nyob rau hauv yoov tshauv yuav tsis tsuas cuam tshuam qhov poob ntawm ignition ntawm ya tshauv, tab sis kuj cuam tshuam rau nws cov dej num.

1. Txhim kho qhov kev tshuaj xyuas ntawm kev sib tsoo ya tshauv, tuav qhov kev hloov pauv ntawm nws qhov poob ntawm qhov hluav taws kub, thiab ua tib zoo saib xyuas cov dej xav tau.

2. Ib qho nyiaj ntawm clinker tuaj yeem tsim nyog ntxiv rau kev sib tsoo ya tshauv txhawm rau ua kom muaj kev ua si.

3. Nws yog txwv tsis pub siv coal gangue los yog shale thiab lwm yam ntaub ntawv uas tsis tshua muaj dej nqus dej los zom ya tshauv.

4. Ib qho ntawm cov khoom lag luam uas txo cov khoom siv dej tuaj yeem tsim nyog ntxiv rau kev sib tsoo ya tshauv, uas muaj qee yam cuam tshuam rau kev tswj cov dej xav tau.