Ua ntej kev tsim kho, yuav tsum muaj kev soj ntsuam ntawm qhov chaw. Ib txoj kev npaj tsim nyog yuav tsum tau tsim rau txhua tus choj raws li nws qhov kev ncua, kev khiav tsheb khiav, thiab cov yam ntxwv hauv av, thiab kev siv yuav tsum tau ua raws li theem ntawm kev nyab xeeb ceev.
Choj Railing Casting: Sib Nqus Sib Nqus: Los xyuas kom meej qhov du thiab zoo nkauj ua kom zoo nkauj, kev xaiv ntawm cov cement thiab sib xyaw ua ke yog qhov tseem ceeb. Tom qab ob peb qhov kev sim, qhov sib xyaw ua ke hauv qab no tau txais: dej: cement: xuab zeb: 0.5-1cm pob zeb me me: 1-2cm pob zeb loj (0.5:1:1.74:1.52:1.85). 525# Portland cement yog siv, nrog rau cement ntau npaum li cas ntawm 370kg thiab xuab zeb piv ntawm 34%. Cov pob zeb ntau dhau tuaj yeem ua rau los ntshav, qhov chaw ntxhib, thiab pom cov dej tsis zoo. Tsis txaus slump ua rau compaction nyuaj, ua rau ntau honeycomb thiab cua npuas. Cov kev cai nruj yog muab tso rau ntawm cov khoom siv raw siv hauv cov pob zeb; xuab zeb thiab pob zeb me me yuav tsum tau sieved, thiab qhov ntau yuav tsum raug ntsuas raws li qhov sib xyaw ua ke.
Kev sib xyaw ua ke: Tus neeg siv khoom sib tov yuav tsum nruj me ntsis tswj kev siv dej, thiab lub sijhawm sib tov yuav tsum tsis pub tsawg dua 3 feeb kom ntseeg tau tias cov pob zeb sib xyaw ua ke, ua tau raws li qhov yuav tsum tau ua, thiab muaj kev ua haujlwm zoo. Qhob Pouring: Qhob yog nchuav rau hauv peb txheej. Thawj txheej yog nchuav mus rau hauv qab ntug ntawm lub guardrail (qhov kev hloov pauv), txheej thib ob mus rau lub ces kaum sab sauv ntawm qhov hloov pauv, thiab txheej thib peb mus rau sab saum toj. Lub sijhawm tso kawm thiab ntim ntawm txhua txheej yog tswj los ntawm tus neeg teb xov tooj vibration. Lub pob zeb faib yuav tsum tsis sib xws, thiab lub sijhawm vibration yuav tsum tau tswj nruj me ntsis, nrog rau txhua txheej vibrating tsis pub tsawg tshaj 1 feeb thiab tsis pub tshaj 1.5 feeb.
Kev Ua tiav: Tom qab lub guardrail pob zeb yog nchuav, saum npoo yog tiav peb zaug. Thawj zaug, nws yog smoothed nrog ib tug ntoo trowel; thib ob, nws yog smoothed thiab pib compacted nrog ib tug steel trowel; lub sij hawm thib peb, tom qab lub pob zeb tau pib pib, nws yog nruj nreem compacted nrog ib tug roller.
Formwork tshem tawm: Formwork tshem tawm yog nyob ntawm huab cua kub thiab pob zeb muaj zog. Rau cov khoom tsis yog-load-cov kabmob, cov qauv tuaj yeem raug tshem tawm tom qab 10-20 teev. Tom qab demolding, lub pob zeb yuav tsum yog huab cua- qhuav rau ib nrab hnub (tsuas yog kom muaj xim sib xws). Cov npuas huab cua yuav tsum tau muab ntim nrog cov cement slurry tov nrog cov cement dawb, thiab cov pob zeb yuav tsum tau them nrog straw mats (los yog lwm yam npog) kom tsis txhob muaj kab mob. Watering yog pom zoo rau kev kho; tsis txhob tsuag nrog zaj duab xis-forming agents.
Thaum lub sij hawm tsim kho, daim ntawv tso cai nyob hauv txoj kev yuav tsum tau ua ntej. Cov paib ceeb toom kev tsheb thiab cov chaw taw qhia yuav tsum tau teeb tsa kom raug. Cov neeg pabcuam tsheb tshwj xeeb yuav tsum raug xaiv los tswj kev khiav tsheb khiav, thiab kev ntsuas kev nyab xeeb yuav tsum tau ua los xyuas kom muaj kev tsim kho thiab kev nyab xeeb ntawm kev tsheb.
Kev saib xyuas kev tsim kho kom zoo suav nrog kev tsim kev tshuaj xyuas kev ua raws cai, ntiav cov neeg saib xyuas sab nraud, thiab siv peb lub- kev tshuaj xyuas. Cov ntaub ntawv tseem ceeb yuav tsum tau ua tus kheej - kev tshuaj xyuas thiab thib peb - kev xeem tog. Cov neeg saib xyuas yuav nyob ntawm - qhov chaw los qhia cov txheej txheem tseem ceeb.
Kev saib xyuas kev ua haujlwm suav nrog kev hais daws qhov tsis xws luag, ua raws li cov qauv kev saib xyuas rau cov txheej txheem tha xim, tswj cov txheej tuab thiab adhesion, thiab ua kom zoo dua cov guardrails txhawm rau txhim kho kev nyab xeeb, durability, thiab zoo li.