Khoom Paub Txog Kev Tshaj Tawm
Kev tsim kho cov khoom lag luam ntawm kev tsim kho tshuab kev daws teeb meem rau 25 xyoo.
Lus
Kev tsim kho cov khoom lag luam ntawm kev tsim kho tshuab kev daws teeb meem rau 25 xyoo.
Feem ntau cov neeg yuav khoom muaj ntau cov lus nug tom qab yuav ib lub pob zeb sib tov los ntawm txawv teb chaws. Hnub no kuv yuav teb koj cov lus nug uas nquag nug, nrog rau qee cov lus nug tseem ceeb uas cov neeg yuav khoom feem ntau nug, thiab kuv vam tias koj tuaj yeem nug ntxiv lossis tiv tauj peb.
Feem ntau, lub sijhawm zoo tshaj plaws rau cov pob zeb yog qhov kub thiab txias (tsis suav nrog lub caij ntuj no thiab lub caij ntuj sov, los nag hnyav thiab drought). Tom qab nchuav pob zeb, koj yuav tsum tau dej nws ib hnub ib zaug. Los nag hauv lub caij ntuj no yuav ua rau cov pob zeb tsis zoo. Lub caij ntuj sov drought tuaj yeem ua rau pob zeb tawg, thiab lwm yam.
Nws tsis pom zoo kom nteg cov pob zeb tshiab rau hnub kub lossis txias heev. Thaum qhov kub thiab txias, dej ntau dhau yuav poob vim evaporation. Yog hais tias qhov kub thiab txias poob qis dua tus nqi, hydration slows down.
Nyob rau hauv cov huab cua no, cov pob zeb tsis tau txais lub zog thiab lwm yam khoom tseem ceeb. Txoj cai dav dav yog tias qhov kub ntawm cov pob zeb tshiab yuav tsum tsis txhob poob qis dua 10 degrees Celsius thaum nws tab tom kho. Qhov kub tsawg kawg nkaus yuav tsum yog +4 ° C (40 ° F) rau huab cua, sib tov thiab substrate. Qhov ntsuas kub no yuav tsum tshwm sim tsis yog thaum lub sijhawm thov, tab sis kuj nyob rau hauv 24 teev ntawm daim ntawv thov.
Thaum kub kub dhau lawm, qhov kev kho tus nqi ntawm cov pob zeb ua kom nrawm, ua rau cov pob zeb tsis zoo kom deteriorate sai.
23 degrees Celsius yog kub dhau rau pouring qhob. Ua ntej tig koj cov cement tov rau hnub, xyuas huab cua kom koj paub tias yuav npaj dab tsi.
Ua ntej: Yog tias koj xav tau qhov sib tov zoo meej kom tau txais cov pob zeb zoo los ntawm koj cov cement tov khoom, pib sim nrog qhov sib txawv. Txoj cai 6 yog ib txoj hauv kev kom tau txais cov cement zoo.
Cov kev cai pib los ntawm kev siv yam tsawg kawg yog 6 lub hnab ntawm cov cement, 6 nkas loos (22.7 litres) dej ib lub hnab, tsawg kawg yog 6 hnub los teeb, thiab cov pob zeb yuav tsum muaj huab cua ntawm 6%. Siv Txoj Cai 6 los tsim cov pob zeb zoo tshaj plaws rau koj qhov project.
Hom thib ob: qhov sib xyaw ua ke yog: 0.47: 1: 1.342: 3.129 (siv txhua hnub)
Khoom siv ib lub cubic meter: dej: 190kg cement: 404kg xuab zeb: 542kg pob zeb: 1264kg
Pob zeb, cement thiab mortar feem ntau yog siv los xa mus rau tib yam. Tab sis cov cement yog cov khoom siv los tsim cov pob zeb, uas sib xyaw ua ke thiab muab tshuaj txhuam ua los ntawm dej thiab cement.
Cement kuj yog ib qho khoom siv hauv mortar. Cov khoom sib tov no yog tsim los ntawm av nplaum, silica xuab zeb, limestone thiab plhaub. Qhov sib tov no hardens thaum tov nrog dej. Kev sib xyaw ua ke yog siv rau hauv lub hauv paus, patio, pem teb slabs, thiab lwm yam.
Pob zeb yog cov khoom siv hloov pauv tau siv hauv cov pwm uas ua pob zeb ua kom zoo ib zaug.
Tsis tas li ntawd, mortar yog sib xyaw ntawm cov cement thiab xuab zeb. Cov khoom no yog siv zoo li cov kua nplaum los tuav cov blocks thiab cib ua ke. Ib yam li pob zeb, ntau ntau hom mortar yog siv rau ntau lub hom phiaj.
Feem ntau cov pob zeb thiab mortar feem ntau xav tau 28 hnub kom kho tau tag nrho.
Kub, av noo thiab lwm yam tuaj yeem cuam tshuam rau lub sijhawm kho. Nco ntsoov xyuas koj cov khoom ntim kom paub meej.
Txhua hnub qhob tov khoom tu cov ntsiab lus:
1. Lub bevel iav ntawm lub tov khoom (lub ntsiab iav, nyob nruab nrab ntawm lub cav thiab cov menyuam) yob ntau dua thiab hnav sai dua. Yog tias nws tawg, nws yuav tsum tau hloov. Txhawm rau hloov nws, tag nrho lub nruas yuav tsum tau muab tshem tawm.
2. Roj nozzles: Muaj peb lub roj nozzles saum lub tov khoom (thiab pem hauv ntej thiab nram qab). Vim muaj qhov sib hloov siab, butter yuav tsum tau ntxiv raws sijhawm. Cov roj nozzles ntawm lub rooj zaum pem hauv ntej thiab nraub qaum yog refueled ntau zaus (ib zaug txhua 2 lub lis piam), thiab lub nruas spindle yog refueled ntau zaus (ib zaug ib lub lim tiam). , los yog tsawg dua, yog tias tsis muaj roj, ntxiv nws).
3. V-siv: V-siv ntawm lub tov khoom (nyob saum lub cav) tsav lub tov khoom ua haujlwm. Yog tias V-siv tau puas lawm (hloov), lub cav yuav tsum raug tshem tawm ua ntej hloov.
4. Steering log pinion: siv rau kev ua haujlwm ntawm lub kauj log kom tsav tag nrho cov tov khoom. (Nyob rau pem hauv ntej ntawm lub tov khoom siv lub log)
vim tias lub tshuab tov khoom ua haujlwm tau ntev thiab qhov kub ntawm lub cev muaj zog yog qhov siab. Lub cev muaj zog ua kom muaj kev tiv thaiv tus kheej thiab cia li nres ua haujlwm thaum kub siab dhau.
Tsuav yog qhov sib tov sib xyaw ua ke ib txwm thiab tsis tawm mus ntev, feem ntau tsis muaj kev cuam tshuam.
Yog hais tias lub tov khoom nres rotating thiab cov pob zeb tseem nyob ruaj khov rau lub sijhawm ntev, nws yuav raug muab pov tseg ncaj qha thiab tsis haum rau kev nchuav txoj kev thiab lwm lub tsev.
Peb yog cov chaw tsim khoom hauv Suav teb tshwj xeeb hauv kev tsim cov pob zeb sib tov. Peb muaj 29 xyoo kev ua lag luam, 7 tus kws tshaj lij engineers thiab 3 lub chaw tsim khoom hauv zos. Peb cov kev paub ntau xyoo tau ua rau peb muaj ntau dua 1,000 cov neeg siv khoom hauv 128 lub teb chaws sib txawv thoob ntiaj teb.
Yog tias koj muaj lus nug txog kev sib xyaw ua ke thiab xav tau peb kev pab, koj tuaj yeem tiv tauj peb txhua lub sijhawm, peb tos ntsoov yuav hnov los ntawm koj thiab tsim kom muaj kev lag luam zoo nrog koj.
Cov neeg siv khoom yuav cov khoom sib xyaw ua ke thiab peb cov kev pabcuam:Tau qhov twg los: https://www.nbacetools.com/news-detail-4686744
