Aggregates rau qhuav mix mortar

Aggregate yog ib qho tseem ceeb hauv kev tsim cov khoom sib xyaw qhuav. Nws yog hais txog cov ntaub ntawv granular, xws li xuab zeb, gravel, crushed pob zeb, thiab slag, uas yog siv los tsim cov mortar mix. Aggregates muab txhua yam muaj zog, ntim stability, thiab seem stability rau lub mortar. Lawv kuj ua raws li cov fillers thiab txhim khu kev ua hauj lwm, durability, thiab kuj rau shrinkage thiab cracking ntawm lub mortar.

Cov khoom ntawm aggregates siv nyob rau hauv qhuav mix mortar sib txawv nyob ntawm seb hom, qhov twg los, thiab ua txoj kev. Kev xaiv ntawm kev sib sau ua ke yog nyob ntawm ntau yam xws li hom kev thov, qhov xav tau lub zog thiab kev ntxhib los mos, thiab qhov muaj thiab tus nqi ntawm cov khoom siv.

Cov hauv qab no yog ib co ntawm cov hom aggregates siv nyob rau hauv qhuav mix mortar:

1. Xuab zeb: Xuab zeb yog feem ntau siv sib sau ua ke hauv cov khoom sib xyaw qhuav. Nws yog cov khoom siv ntuj tsim los yog tsim cov khoom siv granular uas muaj cov khoom sib txawv ntawm qhov loj ntawm 0.063 hli mus rau 5 hli. Xuab zeb muab ntau qhov sib xyaw ntawm cov tshuaj khib thiab txhim kho nws cov haujlwm ua haujlwm, compressive zog, thiab qhov ntev stability. Ntau hom xuab zeb, xws li dej xuab zeb, hiav txwv xuab zeb, thiab cov xuab zeb crushed, tuaj yeem siv nyob ntawm seb lawv muaj thiab zoo.
2. Gravel: Pob zeb yog cov sib xyaw ntxhib uas muaj cov khoom sib txawv ntawm qhov loj ntawm 5 hli mus rau 20 hli. Nws yog feem ntau siv rau hauv cov khoom sib tov qhuav rau cov ntawv thov uas xav tau lub zog siab thiab ua haujlwm ntev, xws li cov qauv siv thiab cov ntaub ntawv hauv pem teb. Gravel tuaj yeem yog ntuj lossis tsim, thiab kev xaiv ntawm hom nyob ntawm daim ntawv thov tshwj xeeb thiab muaj cov khoom siv.
3. Crushed pob zeb: Crushed pob zeb yog ib tug coarse aggregate uas muaj particles loj li ntawm 20 mm mus rau 40 mm. Nws yog feem ntau siv rau hauv qhuav mix mortar ntau lawm rau daim ntaub ntawv uas yuav tsum tau muaj zog thiab ruaj khov, xws li pob zeb thiab masonry daim ntaub ntawv. Crushed pob zeb tuaj yeem yog ntuj lossis tsim, thiab kev xaiv ntawm hom nyob ntawm daim ntawv thov tshwj xeeb thiab muaj cov khoom siv.
4. Slag: Slag yog ib yam khoom los ntawm kev lag luam steel uas feem ntau siv los ua ib qho sib xyaw ua ke hauv cov khoom sib xyaw qhuav. Nws muaj cov khoom sib txawv ntawm qhov loj ntawm 5 hli mus rau 20 hli thiab muab kev ua haujlwm zoo, lub zog compressive, thiab qhov ntev ruaj khov rau cov khoom sib tov.
5. Lub teeb yuag aggregates: Lub teeb yuag aggregates yog siv nyob rau hauv qhuav mix mortar ntau lawm kom txo tau qhov hnyav ntawm mortar thiab txhim khu nws cov rwb thaiv tsev. Lawv feem ntau yog tsim los ntawm cov ntaub ntawv xws li nthuav av nplaum, shale, los yog perlite, thiab muab kev ua haujlwm zoo, rwb thaiv tsev, thiab hluav taws kub tsis kam rau cov khoom sib tov.

Hauv kev xaus, aggregate yog ib qho tseem ceeb hauv kev tsim cov khoom sib xyaw qhuav. Nws muab cov khoom siv dag zog, ntim ruaj khov, thiab qhov ruaj khov rau qhov sib xyaw ntawm cov mortar thiab txhim kho nws cov haujlwm ua haujlwm, ua haujlwm ntev, thiab tsis kam ua kom tawg thiab tawg. Kev xaiv ntawm kev sib sau ua ke nyob ntawm ntau yam xws li hom kev thov, qhov xav tau lub zog thiab kev ntxhib los mos, thiab qhov muaj thiab tus nqi ntawm cov khoom siv.