Qhob hauv Tsev Ua Haujlwm

Qhob hauv tsev ua haujlwm

Los ntawm Borida

Kev sib xyaw ua ke

Txhawm rau kom ntseeg tau tias qhov zoo ib yam ntawm cov pob zeb thaum lub sij hawm tsim kho, nws yog ib qho tseem ceeb uas cov txheej txheem sib tov yog nqa tawm nrog cov khoom sib xws thiab nyob rau hauv ib qho chaw ruaj khov. Qhov no suav nrog kev ua tib zoo tshuaj xyuas cov khoom sib xyaw thiab cov khoom tsis sib xws, tswj qhov kub thiab txias, thiab xaiv cov khoom sib xyaw kom tsim nyog los tiv thaiv cov teeb meem xws li ya raws thiab alkali-tag nrho cov tshuaj tiv thaiv.

Kev Thauj Pob Zeb

Kev thauj mus los ntawm cov pob zeb ua tau zoo yuav tsum tau ua tib zoo npaj txoj hauv kev, lub sijhawm, thiab ua kom muaj kev ruaj ntseg hauv kev thauj mus los. Los ntawm kev txhim kho kev thauj mus los zoo thiab siv cov khoom sib xyaw los txhim kho kev ruaj ntseg, cov neeg ua haujlwm tsim kho tuaj yeem txo qhov kev pheej hmoo ntawm kev sib cais thiab ua kom lub sijhawm xa khoom ntawm pob zeb mus rau qhov chaw.

Formwork Installation

Qhov zoo ntawm formwork installation yog qhov tseem ceeb rau kev ua tiav cov duab xav tau thiab kev ruaj ntseg ntawm cov qauv pob zeb. Kev tu kom zoo, sealing, thiab tshuaj xyuas cov formwork yog cov kauj ruam tsim nyog los tiv thaiv kom tsis txhob xau thiab xyuas kom meej tias cov pob zeb ua kom raug. Load-bearing formwork yuav tsum tsuas yog muab tshem tawm thaum lub pob zeb tau mus txog qhov xav tau lub zog.

Qhob Pouring

Cov txheej txheem ntawm cov pob zeb, txawm tias rau phab ntsa, kab, kab, lossis slabs, yuav tsum tau ua tib zoo tswj xyuas kom muaj kev sib haum xeeb thiab kev ncaj ncees. Qhov no suav nrog kev siv cov txheej txheem pouring uas tsim nyog, xws li txheej txheej txheej thiab kev vibration txuas ntxiv, kom tsis txhob muaj qhov tsis xws luag xws li deformation lossis kev sib cais, thiab kom ua tiav qhov du thiab txawm tias pob zeb nto.

Lub pob zeb yog tsim los ntawm cov khoom siv raw xws li cov xuab zeb thiab cov cement, thiab lawv qhov zoo cuam tshuam ncaj qha rau tag nrho cov qauv kev ruaj ntseg thiab kav ntev ntawm kev tsim kho. Yog li ntawd, thaum muab cov khoom siv raw, cov neeg ua haujlwm tsim kho yuav tsum ua raws li cov qauv tsim thiab cov qauv tsim, yam tsis muaj kev saib xyuas. Thaum lub sij hawm kev yuav khoom, kev saib xyuas tshwj xeeb yuav tsum tau them rau qhov tsim nyog ntawm cov tuam ntxhab thiab cov muag khoom kom ntseeg tau tias muaj kev ntseeg siab thiab ruaj khov ntawm qhov chaw thiab zoo. Tsis tas li ntawd, ntau yam tsis sib xws ntawm cov khoom siv raw, xws li qhov loj me, cov ntsiab lus av nplaum, thiab lub zog compressive, yuav tsum tau sim nruj me ntsis kom ntseeg tau tias txhua pawg ntawm cov khoom siv raw ua tau raws li cov qauv zoo.

Txhawm rau txhim kho kev tswj hwm zoo ntawm cov khoom siv raw, pab pawg ua haujlwm yuav tsum tsim cov txheej txheem kev yuav khoom kom ntxaws ua ntej, qhia txog qhov yuav tsum tau muaj tseeb rau txhua qhov ntsuas. Tsis tas li ntawd, tswj kev sib raug zoo nrog cov neeg muag khoom raw khoom yog qhov tseem ceeb heev. Qhov no tsis tsuas yog tso cai rau kev nkag siab txog cov khoom siv raw, cov txheej txheem tsim khoom, thiab kev tswj xyuas qhov zoo, tab sis kuj tseem pab txheeb xyuas cov teeb meem muaj peev xwm ntxov thiab ua cov kev tsim nyog los daws lawv.

Kev sib xyaw ua ke

Txhawm rau kom ntseeg tau tias qhov zoo sib xws ntawm cov pob zeb siv thaum lub sij hawm tsim kho, cov neeg ua haujlwm yuav tsum siv tib hom cement, xuab zeb, aggregates, thiab admixtures, thiab cov txheej txheem sib tov yuav tsum ua kom ruaj khov thiab ruaj khov. Ua ntej sib tov cov pob zeb, cov neeg ua haujlwm yuav tsum ua tib zoo xyuas seb cov khoom siv sib xyaw ntawm qhov chaw thiab nws cov khoom tsis ua tau raws li cov qauv xav tau, ua kom muaj kev nyab xeeb thiab ua haujlwm zoo ntawm cov txheej txheem sib tov.

Tsis tas li ntawd, thaum lub sij hawm sib tov, cov neeg ua hauj lwm yuav tsum xyuas kom meej tias sab hauv ntawm lub tov khoom tseem ntub tag nrho thiab tswj cov pob zeb kub kom tsis txhob ya raws los yog qhov kub thiab txias sib txawv ntawm sab hauv thiab sab nraud, uas tuaj yeem cuam tshuam rau cov pob zeb zoo. Kev saib xyuas tshwj xeeb kuj yuav tsum tau them rau kev xaiv cov khoom sib xyaw. Cov neeg ua haujlwm yuav tsum ncua sijhawm sib xyaw kom haum raws li cov yam ntxwv ntawm cov khoom sib txawv. Xav txog cov tshuaj tiv thaiv alkali-aggregate hauv cov pob zeb, cov neeg ua haujlwm yuav tsum ceev faj xaiv cov tshuaj alkali-muaj cov khoom sib xyaw kom tsis txhob muaj qhov sib xyaw ua ke kom tsis txhob muaj cov tshuaj alkali-aggregate tshuaj tiv thaiv thaum siv, uas tuaj yeem ua rau tawg ntawm cov kab teeb.

Kev Thauj Pob Zeb

Kev tswj kev thauj mus los ntawm cov pob zeb yuav tsum muaj kev txiav txim siab ntawm txoj kev npaj, lub sijhawm thauj mus los, thiab kev ruaj khov. Txhawm rau txhim kho kev thauj mus los zoo, cov neeg ua haujlwm tsim kho yuav tsum tsim nyog npaj cov kev thauj mus los, txhim kho cov khoom siv thauj mus los, thiab txhim kho kev sib koom tes ntawm txhua ntu kev thauj mus los, ua kom luv luv ntawm kev thauj mus los thiab lub sijhawm hloov mus los kom ntseeg tau tias cov khoom siv raw tau xa mus rau qhov chaw tsim kho. Txhawm rau hais txog qhov teeb meem ntawm kev sib cais thaum lub sij hawm kev thauj mus los, cov neeg ua haujlwm tuaj yeem ntxiv qee cov khoom sib xyaw thaum lub sij hawm sib xyaw ua ke los txhim kho kev ruaj ntseg, yog li tiv thaiv qhov tshwm sim ntawm kev sib cais los yog kev sib cais thaum thauj.

Formwork Installation

Formwork feem ntau tuaj nyob rau hauv ob pawg: ntoo formwork thiab steel formwork. Nws ua lub luag haujlwm txhawb nqa hauv kev tsim vaj tsev pob zeb, thiab nws qhov kev txhim kho zoo cuam tshuam rau kev tsim cov qauv ntawm cov pob zeb. Ua ntej txhim kho cov formwork, cov neeg ua haujlwm tsim kho yuav tsum tau ntxuav cov formwork nrog dej, xyuas kom tsis muaj dej nyob hauv qab, thiab tom qab ntawd nruj nreem kaw qhov khoob nrog cov cuab yeej xws li cov yas strips. Tom qab lub formwork raug ntsia, cov neeg ua hauj lwm yuav tsum ua ib tug nruj soj ntsuam kom tsis txhob slurry to thaum lub sij hawm pouring. Thaum lub pob zeb muaj zog ua tau raws li cov qauv tsim, cov qauv ntawm cov kabmob tuaj yeem raug tshem tawm ua ntej, thaum saib seb puas muaj qhov txawv txav hauv cov qauv pob zeb. Yog tias tsis pom ib qho twg, qhov tsis yog-load-bearing formwork tuaj yeem raug tshem tawm ua ntu zus.

Qhob Pouring

(1) Pouring Concrete rau phab ntsa thiab kab: Thaum lub sij hawm nchuav ntawm phab ntsa thiab kem pob zeb, cov neeg ua haujlwm tsim kho yuav tsum siv txheej txheej txheej txheej, sib faib cov ntsiab lus ntawm qhov chaw, thiab ua kom cov txheej txheem txuas ntxiv. Nyob rau tib lub sijhawm, cov ntsiab lus hauv qab no yuav tsum tau sau tseg: (i) qhov siab ntawm txhua txheej yuav tsum tsis txhob siab tshaj 1 meter, thiab qhov siab dawb-dhau ntawm cov pob zeb yuav tsum tsis pub tshaj 2 meters; (ii) Qhov siab ntawm cov pob zeb ntawm ob sab ntawm phab ntsa qhib, nrog rau lub sij hawm ntawm kev co thiab kev tso kawm, yuav tsum ua tib zoo tiv thaiv deformation ntawm qhov qhib; (iii) Cov qhov qhib ntawm qhov qis ntawm cov phab ntsa loj yuav tsum tau muab ntxiv nrog kev co ntxiv kom tsis txhob muaj qhov chaw ploj lossis tsis muaj kev co; (iv) Lub sijhawm nruab nrab ntawm cov khaubncaws sab nraud povtseg ntawm cov pob zeb sib xyaw yuav tsum tsawg dua li lub sijhawm pib, thiab tom qab txhua txheej yog nchuav, kev co yuav tsum txuas ntxiv mus kom txog rau thaum lub slurry nto tsis bubbling.

(2) Pouring Concrete rau Beams thiab Slabs: Thaum lub sij hawm siv slab, cov neeg ua hauj lwm yuav tsum tau txais "sweeping slurry method" rau beam thiab slab pouring. Tshwj xeeb tshaj yog, lawv yuav tsum xub ncuav lub beam pob zeb, tom qab ntawd mus rau txheej txheej raws li qhov siab ntawm cov nqaj, tsim ib qho stepped duab. Thaum pouring mus txog rau hauv qab ntawm lub slab, slab qhob pouring yuav tsum tau nqa tawm ib txhij, xyuas kom meej tias beam thiab slab qhob qhob tsis tu ncua mus nrog lub stepped zoo, ua tau ib tug zoo ib yam thiab uniform pouring nyhuv.

Thaum lub sij hawm pouring ntawm beam pob zeb, cov neeg ua hauj lwm yuav tsum tau siv ib tug immersion vibrator, kom ntseeg tau tias ceev ceev thiab qeeb ntsoos ntsoos thaum tuav txawm insertion ntsiab lus. Thaum pouring slab pob zeb, lub tiaj vibrator yuav tsum tau siv los xyuas kom meej ib tug du thiab txawm nto.

Tom qab pouring, cov neeg ua haujlwm tuaj yeem siv cov cuab yeej leveling kom du saum npoo, raws li qhov kev txiav txim pouring. Thaum lub sij hawm smoothing txheej txheem, nruj tswj lub flatness thiab smoothness ntawm lub pob zeb nto yog tsim nyog los ua kom tiav qhov zoo tshaj plaws kev tsim kho, yog li yooj yim rau tom ntej installation ntawm phab ntsa thiab kem formwork.

Tsis tas li ntawd, txawm hais tias thaum lub sij hawm los yog tom qab pouring, cov neeg ua hauj lwm yuav tsum nco ntsoov xyuas kom meej tias cov pob zeb poob thiab cov pob zeb ua rau ntawm qhov chaw tiav raug ntxuav kom tsis txhob cuam tshuam qhov zoo ntawm cov pouring.