Cov Lus Qhia Txog Qhov Loj ntawm Cov Khoom Siv Sib Tov Ua Ke: Qhov Sib Xyaws Sib Xyaws, Qhov Ntim Nruas thiab Cov Zis
Lub tshuab sib tov ua vaj tse 350L tsis tuaj yeem tsim tau 350 litres ntawm cov pob zeb tiav ib pawg . Tus lej nyob ib sab ntawm tus qauv yuav piav qhia txog qhov ntim ntawm lub nruas, lub peev xwm thauj khoom lossis lwm qhov peev xwm ntsuas, thaum qhov ntau ntawm cov pob zeb koj tuaj yeem sib tov thiab tso tawm tuaj yeem qis dua. Qhov sib txawv ntawd tseem ceeb thaum cov neeg cog lus npaj kev nchuav thiab thaum cov neeg muag khoom piv ob lub tshuab uas ob leeg muaj "350L" hauv daim ntawv hais. Qhov sib piv sib tov yog lwm feem ntawm kev xam, tab sis nws teb cov lus nug sib txawv: qhov sib piv tswj cov khoom siv sib piv, thaum qhov loj ntawm cov khoom sib tov qhia koj tias lub tshuab tuaj yeem ua haujlwm ntau npaum li cas hauv lub voj voog ua haujlwm rov ua dua.
Qhov Ntim ntawm Lub Tov Khoom Ua Vaj Tse: Tus lej muaj peev xwm txhais li cas?
Pib los ntawm kev nug tus neeg muag khoom seb tus lej litre sawv cev rau dab tsi. Tag nrho cov ntim ntawm lub nruas, lub peev xwm thauj khoom thiab lub peev xwm tso tawm tsis yog cov lus sib pauv tau. ACE cov lus qhia uas twb muaj lawm rau peev xwm sib tov ua vaj tse , piv txwv li, muab piv txwv lub tshuab nruab nrab nrog lub peev xwm thauj khoom 560-litre thiab kwv yees li 350 litres ntawm cov pob zeb uas tso tawm. Qhov sib txawv yog muaj ib qho laj thawj: cov ntaub ntawv xav tau chav hauv lub nruas kom tsa, dov thiab faib dua.
| Lub Sijhawm Muaj Peev Xwm | Txhais Li Cas | Cov neeg yuav khoom yuav tsum nug dab tsi |
|---|---|---|
| Lub nruas ntim | Tag nrho qhov chaw geometric hauv lub nruas | Qhov no puas yog qhov loj ntawm lub nruas xwb? |
| Muaj peev xwm thauj khoom | Tus nqi ntawm cov khoom siv thauj khoom rau ib pawg ua haujlwm | Qhov no puas yog qhov ntsuas ua haujlwm? |
| Muaj peev xwm tso tawm | Cov pob zeb ua vaj tse tsim tawm thiab tso tawm ib pawg | Kuv siv tau phau ntawv twg rau kev npaj ua haujlwm? |
| Cov zis txhua teev | Kev tsim khoom dhau ntawm cov voj voog tiav rov ua dua | Xav tias yuav siv sijhawm thauj khoom, sib tov thiab tso tawm li cas? |
Cov pob zeb sib xyaw kuj siv feem ntau ntawm cov khoom sib xyaw. NRMCA hais tias cov pob zeb sib xyaw feem ntau yog li ntawm 60–75% ntawm cov pob zeb sib xyaw . Feem ntau ntawm cov khoom sib tov yuav tsum txav mus los yog xuab zeb thiab pob zeb es tsis yog cov cement nplaum. Sau cov khoom ntau dhau rau hauv lub nruas thiab muaj chaw tsawg dua rau cov khoom ntawd txav mus los ntawm txoj kev sib tov. Lub nruas tseem yuav tig zoo siab heev; cov pob zeb sib xyaw sab hauv yuav tsis tshua muaj zog.
Koj Yuav Tsum Piv 350L, 400L thiab 500L Cov Khoom Sib Tov Ua Vaj Tse Li Cas?
Lub ACE ntau yam khoom sib tov ua vaj tse tam sim no suav nrog 350L, 400L thiab 500L chav kawm nrog roj av, diesel thiab hluav taws xob xaiv. Cov ntawv lo loj no muaj txiaj ntsig zoo rau kev ua daim ntawv teev npe luv luv, tab sis lawv yuav tsum tsis txhob siv ua cov khoom tiav tiav tshwj tsis yog tias cov lus qhia ntawm lub tshuab hais li ntawd.
| Chav Kawm Sib Tov Khoom | Qhov Xwm Txheej Yuav Khoom Ib Txwm Muaj | Tshawb xyuas ua ntej xaj khoom |
|---|---|---|
| 350L | Cov dej me me, kev kho, cov ncej thiab cov neeg ua haujlwm txawb | Qhov ntim khoom siv tau, qhov chaw fais fab, txoj kev tso tawm thiab cov log |
| 400L | Kev ua haujlwm tsis tu ncua ntawm cov neeg cog lus thiab kev ua haujlwm ntau zaus ntawm qhov chaw | Muaj peev xwm ua haujlwm, qauv hniav, lub nplhaib iav, thav duab thiab lub zog |
| 500L | Cov pawg loj dua rov ua dua ntawm cov chaw me thiab nruab nrab | Qhov ntim tawm, qhov siab ntawm kev thauj khoom, kev ruaj khov ntawm lub thav duab thiab kev nkag mus rau qhov chaw |
Cov no yog cov pawg yuav khoom siv tau, tsis yog cov kev txwv ntawm kev tsim kho. Ib tus neeg cog lus yuav tau txais kev tsim khoom zoo dua los ntawm lub tshuab me me uas nyob ib sab ntawm lub tshuab nchuav dua li ntawm lub tshuab sib tov loj dua uas nyob tsib caug meters deb tos lub laub. Thaum piv cov lus hais, nug txhua tus neeg muag khoom kom txhais lub peev xwm tib yam. Kev sib piv ntawm ib lub chaw tsim khoom lub nruas ntim nrog lwm lub chaw tsim khoom lub ntim tso tawm yog ib txoj hauv kev yooj yim los ua kom daim ntawv nthuav dav zoo li muaj txiaj ntsig ntau dua li qhov nws yog tiag tiag.
Qhov Sib Piv Sib Xyaws Ua Los Ntawm Pob Zeb Ua Rau Muaj Kev Cuam Tshuam Li Cas Rau Ib Pawg Mixer?
Tus piv ntawm cov khoom sib tov ua vaj tse piav qhia txog qhov sib piv ntawm cov cement, xuab zeb thiab cov pob zeb loj. Nws tsis txiav txim siab qhov muaj peev xwm ntawm cov khoom sib tov. Rau cov khoom me me, cov piv paub zoo li 1:2:3 thiab 1:2:4 tuaj yeem siv ua cov ntaub ntawv teev npe uas qhov project xav tau.
| Qhov Sib Piv Nominal | Cement | Xuab zeb | Cov Pob Zeb Loj |
|---|---|---|---|
| 1:1.5:3 | 1 feem | 1.5 qhov | 3 qhov |
| 1:2:3 | 1 feem | 2 qhov | 3 qhov |
| 1:2:4 | 1 feem | 2 qhov | 4 qhov |
| 1:3:6 | 1 feem | 3 qhov | 6 qhov |
Yog koj siv ib lub thoob 10-litre rau ib pawg 1:2:3, cov khoom pib yog 10 litres ntawm cov cement, 20 litres ntawm cov xuab zeb thiab 30 litres ntawm cov pob zeb loj. Dej tsis yog tsuas yog ntxiv ua lwm tus lej hauv qhov piv ntawd. Nws xav tau kev tswj hwm sib cais.
Tsis tas li ntawd, tsis txhob ntxiv 10 + 20 + 30 thiab xav tias lub tshuab sib tov yuav tso tawm 60 litres ntawm cov pob zeb tiav lawm. Cov khoom me me puv qhov chaw ntawm cov khoom sib xyaw loj dua, cov nplaum puv qhov me me thiab cov khoom sib xyaw thaum sib tov. Yog xav tau cov lus qhia ntxaws ntxiv txog cov piv txwv nominal thiab cov ntawv thov project, siv cov uas twb muaj lawm daim ntawv qhia txog kev sib xyaw ua ke Cov pob zeb ua vaj tse yuav tsum ua raws li qhov kev ua tau zoo thiab kev tsim cov khoom sib xyaw uas tau pom zoo.
Qhov Sib Piv ntawm Dej thiab Cement: Tus lej uas lub thoob tsis tuaj yeem qhia koj
ACI txhais qhov piv ntawm cov dej-cementitious cov ntaub ntawv, lossis w/cm, ua qhov hnyav ntawm cov dej sib tov faib los ntawm qhov hnyav ntawm cov ntaub ntawv cementitious . Yog li ntawd, w/cm ntawm 0.50 txhais tau tias 25 kg ntawm cov dej sib tov rau 50 kg ntawm cov ntaub ntawv cementitious. ACI kuj hais tias cov dej noo dawb uas cov aggregates nqa yuav tsum tau xav txog thaum tsis quav ntsej nws yuav hloov pauv qhov tseeb w/cm.
Xuab zeb ntub dej tuaj yeem hloov pauv pawg ua ntej koj ntxiv dej
Ib qho kev xam ACI E1-16 muab kev nkag siab zoo ntawm qhov ntsuas. Hauv nws qhov piv txwv SI, cov pob zeb me me nrog 6% tag nrho cov dej noo tau pab txhawb 38.5 kg ntawm cov dej dawb , thaum cov pob zeb ntxhib ntxiv lwm 11.3 kg . Yog li ntawd, cov pob zeb tau coj 49.8 kg ntawm cov dej noo dawb rau hauv ib pawg uas xav tau 190 kg ntawm tag nrho cov dej sib tov. Tsuas yog kwv yees li 140 kg yuav tsum tau ntxiv cais .
| Piv txwv ntawm ACI dej noo | Tus nqi |
|---|---|
| Cov dej tsis muaj pob zeb zoo | 38.5 kg |
| Cov dej tsis muaj pob zeb loj | 11.3 kg |
| Tag nrho cov dej dawb los ntawm cov pob zeb sib xyaw | 49.8 kg |
| Lub hom phiaj tag nrho cov dej sib xyaw | 190 kg |
| Ntxiv dej rau ntawm lub tshuab sib tov | Kwv yees li 140 kg |
Cov lej ntawd yog ib qho piv txwv ntawm ACI, tsis yog qib dej noo ib txwm muaj rau txhua pawg xuab zeb. Zaj lus qhia ntawm qhov chaw yooj yim dua: Hnub Monday suav cov thoob tuaj yeem zoo ib yam li hnub Tuesday thaum hnub Tuesday cov pob zeb ua vaj tse ntub dua vim tias nag los ib hmos.
Vim Li Cas "Tsuas Yog Me Ntsis Dej Ntxiv" Tsis Pub Dawb
Muaj ib qho laj thawj uas cov neeg ua haujlwm xav ntxiv dej. NRMCA muab ib txoj cai yooj yim uas hais tias kwv yees li 5 liv dej rau ib lub cubic metre tuaj yeem ua rau qhov slump nce li ntawm 25 hli . Qhov sib txawv yooj yim pom thaum lub sijhawm tso tawm cov khoom.
Qhov teeb meem no yuav los tom qab. NRMCA ceeb toom tias cov dej uas ntau tshaj qhov tsim nyog sib tov yuav ua rau qeeb qhov kev teeb tsa, txo qhov muaj zog, ua rau lub zog tsis ruaj khov thiab ua rau muaj peev xwm tawg. Kev muab tso yooj yim dua rau tsib feeb tom ntej no tsis yog qhov zoo dua rau tsib xyoos tom ntej no.
Koj Yuav Ua Li Cas Tig Cov zis ntawm Mixer mus rau hauv ib txoj kev npaj ua tiav tiag tiag?
Thaum paub lub peev xwm tso tawm ntawm lub tshuab lawm, kev suav lej yooj yim heev:
Tus naj npawb ntawm cov pawg = qhov ntim ntawm cov pob zeb uas xav tau ÷ qhov ntim ntawm cov khoom pov tseg uas tau txheeb xyuas ib pawg
Yog tias ib lub tshuab sib tov tshwj xeeb tau lees tias tso tawm 0.28 m³ ib pawg thiab txoj haujlwm xav tau 1.40 m³, qhov ntau uas tau npaj tseg yog:
1.40 ÷ 0.28 = 5 pawg
Tus lej 0.28 m³ tsuas yog ib qho piv txwv xwb. Nws tsis yog qhov tso zis thoob ntiaj teb rau txhua lub tshuab sib tov 350L lossis 400L. Rau ib qho project tiag tiag, siv cov lus qhia ntawm lub tshuab lossis cov zis ntsuas tau.
Kev tsim khoom txhua hnub kuj suav nrog kev thauj khoom, kev sib tov, kev tso tawm thiab kev npaj cov khoom tom ntej. Tus lej suav txhua teev raws li kev xav poob nws qhov zoo nkauj sai sai yog tias lub tshuab sib tov tos cov pob zeb lossis cov neeg ua haujlwm tsis tuaj yeem txav cov pob zeb sai txaus.
Kev Thauj Khoom thiab Lub Sijhawm Sib Tov Tseem Ceeb
Thaum twg tswj tau qhov loj thiab dej ntawm cov khoom sib xyaw lawm, ua kom cov txheej txheem rov ua dua. Siv tib txoj kev ntsuas, tsis txhob suav cov khoom sib xyaw ua ke thiab cia kom sib tov txaus kom cov khoom sib xyaw sib npaug. Kev txiav txim siab ntawm kev thauj khoom sib txawv raws li tus qauv tsim ntawm lub tshuab sib tov thiab cov khoom siv, yog li ntawd tsis muaj txiaj ntsig ntau hauv kev ua txuj tias ib qho kev txiav txim siab yog qhov tseeb rau txhua lub tshuab.
Cov lus qhia ntawm ACE yuav ua li cas sib tov pob zeb hauv lub tshuab sib tov npog cov txheej txheem ua haujlwm kom ntxaws ntxiv. Rau qhov ceev thiab lub sijhawm sib tov, saib phau ntawv qhia rau kev ceev ntawm lub nruas sib tov ua vaj tse .
Cov pob zeb sib xyaw ua ke muab ib qho piv txwv zoo ntawm kev kho dej kom zoo li cas. NRMCA sau tseg tias ASTM C94/C94M xav tau 30 lub kauj ruam ntxiv ntawm qhov ceev sib tov tom qab ntxiv dej lossis cov tshuaj ntxiv rau hauv qhov chaw ua haujlwm. Qhov kev cai ntawd siv rau cov tsheb thauj khoom sib tov ua ke, tsis yog rau cov khoom sib tov me me, tab sis lub hauv paus ntsiab lus muaj txiaj ntsig: kev ntxiv dej tsis tiav kom txog thaum nws tau sib tov thoob plaws hauv tag nrho cov khoom.
Cov Yuam Kev Sib Tov Pob Zeb Ua Ke
| Yuam Kev | Dab Tsi Yuav Mus Tsis Zoo | Kev Tshawb Xyuas Zoo Dua |
|---|---|---|
| Siv cov drum litres ua cov khoom tso tawm ntau | Kev tsim khoom ntawm qhov chaw raug kwv yees ntau dhau | Xyuas kom meej tias muaj peev xwm sib tov lossis tso tawm |
| Kev thauj khoom ntau dhau ntawm lub mixer | Tsawg chav rau kev txav khoom siv | Nyob hauv qhov kev ua haujlwm uas tau teev tseg |
| Ntxiv dej los ntawm lub qhov muag | Qhov tseeb w/cm kev hloov pauv ntawm cov pawg | Ntsuas dej thiab suav nrog cov dej noo sib xyaw |
| Tsis quav ntsej txog cov xuab zeb ntub | Dej dawb nkag mus rau hauv cov pob zeb tsis muaj leej twg pom | Tshawb xyuas cov dej noo ntawm cov khoom sib sau ua ke |
| Sib tov luv luv dhau | Kev sib npaug ntawm pawg tuaj yeem raug kev txom nyem | Ua raws li cov lus qhia ntawm lub tshuab thiab tshuaj xyuas qhov tso tawm |
| Siv ib qho piv rau txhua qhov project | Cov pob zeb ua vaj tse yuav tsis ua tau raws li qhov yuav tsum tau ua | Ua raws li cov lus qhia ntawm qhov project |
Cov neeg yuav khoom siv yuav tsum xyuas dab tsi ua ntej yuav khoom?
Rau cov pab pawg yuav khoom, pib nrog txoj haujlwm es tsis txhob sau daim ntawv teev khoom. Txiav txim siab seb yuav tsum tsim cov pob zeb ntau npaum li cas rau ib pawg thiab ib hnub, tom qab ntawd saib lub tshuab. Cov lus qhia muaj txiaj ntsig suav nrog lub peev xwm ua haujlwm, qhov ntim tawm, qhov chaw fais fab, kev teeb tsa hniav, kev tsim lub nruas, lub iav nplhaib, lub thav duab, lub log thiab kev nkag mus rau kev saib xyuas.
Cov neeg muag khoom thiab cov tuam txhab xauj tsev kuj yuav tsum xav txog qhov yuav tshwm sim tom qab ob peb lub hlis thawj zaug. Tus nqi yuav qis dua me ntsis poob qee qhov kev nyiam thaum siv txoj siv sia, bearing lossis iav nyuaj rau hloov. Lub ACE daim ntawv teev cov kev tshuaj xyuas cov khoom sib tov ua vaj tse npog cov kev kuaj xyuas tshuab no, thaum lub sijhawm ntawd phau ntawv qhia yuav khoom siv sib tov ua vaj tse saib ze dua ntawm kev txav mus los, kev xaiv fais fab thiab cov xwm txheej ntawm qhov chaw.
Thaum koj thov kom muaj tus nqi, xa koj cov khoom siv uas koj xav tau, hom pob zeb ua vaj tse ib txwm muaj, lub zog uas koj siv tau, thiab cov khoom siv uas koj xav tau txhua hnub rau tus neeg muag khoom. Cov ntaub ntawv no muaj txiaj ntsig zoo dua li kev thov "lub tshuab sib tov loj tshaj plaws uas koj muaj."
Cov Lus Nug Txog Kev Sib Tov Khoom Ua Vaj Tse
Lub tshuab sib tov ua vaj tse 350L puas tuaj yeem tsim tau 350L ntawm cov pob zeb ua vaj tse?
Tsis tas li ntawd xwb. Tus lej 350L tej zaum yuav piav qhia txog qhov ntim ntawm lub nruas es tsis yog qhov peev xwm sib tov lossis tso tawm uas siv tau. Xyuas seb tus neeg tsim khoom txhais tus lej li cas ua ntej siv nws rau kev xam ntau ntau.
Qhov txawv ntawm qhov ntim ntawm lub mixer thiab qhov loj ntawm cov khoom sib xyaw yog dab tsi?
Qhov ntim ntawm lub tshuab sib tov los yog lub nruas piav qhia txog lub peev xwm ntawm lub nruas. Qhov loj ntawm cov khoom siv yog hais txog qhov ntau npaum li cas ntawm cov khoom siv uas lub tshuab tuaj yeem sib tov kom zoo lossis qhov ntau npaum li cas ntawm cov pob zeb tiav lawm uas nws tuaj yeem tso tawm.
Qhov sib piv sib tov zoo tshaj plaws rau lub tshuab sib tov yog dab tsi?
Lub tshuab sib tov tsis txiav txim siab qhov piv uas xav tau. Cov piv nominal xws li 1:2:3 tuaj yeem siv tau rau hauv thaj chaw uas tso cai, tab sis cov pob zeb ua vaj tse yuav tsum ua raws li lub zog xav tau, qhov chaw raug thiab kev tsim cov khoom sib tov uas tau pom zoo.
Puas yog xuab zeb ntub hloov qhov ntau ntawm cov dej uas xav tau?
Yog. Cov dej noo ntawm saum npoo uas xuab zeb thiab cov pob zeb loj nqa mus yuav ua ib feem ntawm cov dej sib tov thiab tuaj yeem ua rau qhov w/cm tiag tiag nce ntxiv yog tias cov dej ntxiv sib cais tsis raug txo.
Cov dej ntxiv ua rau cov pob zeb poob qis ntau npaum li cas?
NRMCA muab ib txoj cai yooj yim ntawm kwv yees li 5 L/m³ ntawm cov dej ntxiv rau kwv yees li 25 hli nce hauv qhov poob qis. Daim duab no yog ib qho kev qhia hauv daim teb, tsis yog kev tso cai kom dhau qhov dej uas tau teev tseg lossis w/cm.
Kuv puas yuav tsum yuav lub tshuab sib tov ua vaj tse 350L, 400L lossis 500L?
Xaiv los ntawm cov khoom siv tau ntau npaum li cas, kev tsim khoom txhua hnub, kev muab hluav taws xob, kev nkag mus rau qhov chaw thiab kev xav tau kev thauj mus los. Chav kawm litre muaj txiaj ntsig zoo rau kev xaiv cov tshuab, tab sis qhov peev xwm ua haujlwm thiab kev tso tawm tiag tiag yuav tsum yog qhov kev txiav txim siab zaum kawg.
Cov cim npe: qhov loj ntawm cov khoom sib tov ua vaj tse, qhov ntim ntawm cov khoom sib tov ua vaj tse, 350L cov khoom sib tov ua vaj tse, 400L cov khoom sib tov ua vaj tse, 500L cov khoom sib tov ua vaj tse, qhov sib piv ntawm cov khoom sib tov ua vaj tse, cov zis ntawm cov khoom sib tov ua vaj tse, peev xwm ntawm cov khoom sib tov ua vaj tse, cov khoom sib tov ua vaj tse, cov khoom sib tov ua vaj tse uas nqa tau
