PGS yog cov xuab zeb thiab pob zeb sib tov. Nws yog siv los ua cov mortars. Nws yuav tsum tau hais tias cov kev daws teeb meem uas ASG tam sim no yog cov khoom siv zoo heev rau kev teeb tsa txoj kev.
cov ntaub ntawv dav dav
PGS yog cov khoom siv tshuaj lom neeg thiab lub cev zoo. Piv nrog rau lwm cov khoom xyaw, nws yog pheej yig. Yog vim li ntawd nws thiaj li nrov heev ntawm cov khoom siv hauv tsev. Ob hom xuab zeb thiab pob zeb sib tov tuaj yeem paub qhov txawv: ntuj (zoo tib yam) thiab ua kom zoo.
Production
PGS yog cov khoom siv ntuj tsim. Nws yog mined nyob rau hauv qhov chaw uas muaj hiav txwv los yog dej ntug hiav txwv dej. Kev ua haujlwm hauv quarries yog ua los ntawm cov khoom siv excavator. Enriched xuab zeb-gravel sib tov yog tsim los ntawm kev ntxiv ib qho nyiaj ntawm gravel rau qhov ntim ntawm qhov qub mined. Thaum cov khoom raug tshem tawm hauv av, nws tuaj yeem pom tias cov nplej loj ntawm pob zeb muaj nyob hauv nws. Xws li lub ntuj sib xyaw suav nrog, ntxiv rau gravel, xuab zeb hauv qhov tseem ceeb. ASG ntawm qhov muaj pes tsawg leeg no feem ntau yog siv los ua cov txheej txheem saum toj kawg nkaus ntawm txoj kev. Nws kuj tseem siv tau rau hauv cov kav dej.
yam ntxwv
Muaj qee cov qauv uas tswj qhov piv ntawm cov pob zeb uas muaj nyob rau hauv tag nrho cov nyiaj ntawm ASG. Yog li, qhov muaj cov khoom siv loj nrog lub cheeb ntawm 5 hli yuav tsum tsis pub tshaj 95%, tab sis qhov tsawg kawg nkaus yuav tsum yog tsawg kawg yog 5%. Lub ntsiab impurities uas ua rau ASG yog hmoov av los yog av nplaum. Raws li cov qauv, lawv tus lej yuav tsum tsis pub tshaj 5%. Cov pob zeb uas muaj nyob hauv qhov sib xyaw ntuj no muaj ntau yam khoom muaj txiaj ntsig. Qhov no, tshwj xeeb, hardness, ntom, Frost kuj. Ib qho txiaj ntsig tseem ceeb ntawm PGS yog nws tus nqi pheej yig. Piv nrog rau lwm cov ntxhia hauv ntuj, qhov sib tov yog pheej yig heev. Yog li, nrog cov nyiaj me me, koj tuaj yeem yuav cov khoom lag luam zoo nkauj. Tab sis kev sib xyaw ntawm cov xuab zeb thiab pob zeb, txawm tias muaj ntau yam ntawm lawv cov natural compounds, yog siv rau hauv kev tsim kho tsuas yog ua cov khoom pab. Rau cov txheej txheem xws li theem thiab npaj qhov chaw, nws yog qhov zoo dua los siv cov khoom siv raw khoom zoo dua.
Siv CGM
Qhob, raws li koj paub, yog siv rau kev tsim kho ntawm ntau yam qauv. Qhov no yog vim lub fact tias nws yog suav hais tias yog ib tug universal khoom. Pob zeb muaj cov khoom nram qab no: dej, cement thiab muab tub lim. Qee qhov xwm txheej, cov tshuaj ntxiv tau ntxiv los txhim kho cov yam ntxwv ntawm cov tshuaj. Ib qho ntawm feem nrov aggregates rau pob zeb yog xuab zeb thiab gravel. PGS, kev tshuaj ntsuam xyuas, cov khoom siv cib tsuas yog siv hauv qee hom. Lub xub ntiag ntawm ib feem lossis lwm qhov nyob ntawmntawm qhov xwm txheej ntawm kev ua haujlwm. Txhawm rau kom cov pob zeb sib xyaw ua kom zoo, nws yog ib qho tsim nyog yuav tsum tau soj ntsuam cov proportions thiab ntau lawm technology. Tsis txhob hnov qab txog qhov zoo ntawm cov khoom siv. Qhov kev faib ua feem ntawm cov cement thiab xuab zeb-gravel sib tov tuaj yeem sib txawv, txhua yam nyob ntawm lub hom phiaj ntawm cov pob zeb. Feem ntau nws yog 1: 4 lossis 1: 3 - ib qho kev pabcuam ntawm cov cement thiab peb lossis plaub xuab zeb thiab pob zeb sib tov. Qhov piv no haum rau cov pob zeb zoo. Yeej, qhov sib piv ntawm ASG thiab cement nyob ntawm qhov zoo ntawm cov tshuaj yav tom ntej. Lub luag haujlwm tseem ceeb yog ua si los ntawm qhov loj ntawm cov feem ntau suav nrog hauv cov xuab zeb-gravel sib tov. Yog tias pob zeb yuav siv los sau lub hauv paus, ces qhov sib piv ntawm cov khoom yuav yog 1: 8 (ib feem ntawm cov cement thiab yim ntawm cov xuab zeb thiab pob zeb).
Hauv pob zeb, uas suav nrog ASG, tsis tas yuav ntxiv cov pob zeb crushed, gravel cais. Tab sis txhua yam tsis meej. Ntau yam nyob ntawm qhov ratio ntawm gravel thiab xuab zeb nyob rau hauv lub pob zeb sib tov. Feem ntau ntawm cov tuam txhab uas cov mortar tau yuav, koj tuaj yeem paub cov ntsiab lus ntawm qhov piv ntawm ASG thiab cov cement siv. Thaum ua hauv tsev, ib qho nuance yuav tsum nco ntsoov. Xuab zeb yuav tsum tsuas yog ntxiv rau pob zeb thaum pob zeb predominates hauv nws cov qauv.
Concrete from OGPS
Cov khoom sib xyaw ntawm cov pob zeb sib xyaw los ntawm OGPS yog qhov sib txawv ntawm qhov uas suav nrog ASG. Txhawm rau kom tau txais kev daws teeb meem, nws yog qhov yuav tsum tau ua ke cov khoom hauv qab no: dej (0.5 ntu), cement (1 feem), OPGS (4 ntu). Tag nrho cov proportions no yuav tsum tau ua raws li qhov hnyav ntawm cov ntaub ntawv. ATQee zaum, nws raug nquahu kom ntxiv xuab zeb cais. Tab sis nws tag nrho yog nyob ntawm qhov feem pua ntawm cov khoom no twb muaj nyob rau hauv OGPS thiab ntawm hom cement. Raws nraim tib qhov kev pom zoo yuav tsum tau thov rau kev tsim cov pob zeb los ntawm ASG. Txhua yam yog sib cuam tshuam heev. Nyob ntawm lub hom phiaj ntawm qhov kawg ntawm daim ntawv thov pob zeb, nws yog ib qho tsim nyog yuav tsum coj mus rau hauv tus account qhov piv ntawm cov xuab zeb hauv ASG thiab hom cement nws tus kheej. Nyob rau hauv dab tsi feem ntawm cov khoom ntawm cov xuab zeb-gravel sib tov muaj, koj tuaj yeem pom thaum lub sijhawm yuav khoom. Tab sis yog tias qhov no tsis muaj, ces koj tuaj yeem txiav txim siab qhov no hauv tsev. Txhawm rau kom paub qhov sib piv ntawm gravel thiab xuab zeb, nws yog ib qho tsim nyog yuav tsum tau sift ASG los ntawm lub sieve.
