Siv txoj kev thiab ntau npaum li cas tswj ntawm accelerator

Covtus neeg saib xyuas ceev ceev, ib hom kev teeb tsa accelerator, yog qhov tseem ceeb rau kev ua vaj tse zoo, tshwj xeeb tshaj yog nrog kev tswj xyuas ntau npaum li cas.3-5%. Tuam Tshoj Quick-Setting Agent Network muab kev taw qhia txog kev siv kom raug thiab tsim nyog npaum li cas. Tus neeg sawv cev no tuaj yeem ua cov pob zeb tsim nyob rau hauv feeb thiab feem ntau yog siv hauv kev txhaj tshuaj, refractory pob zeb tsim, thiab cov dej xau sealing. Cov koob tshuaj sib txawv ua rau lub sijhawm sib txawv. Kev sim nrog kev sib xyaw ua ke thiab tom qab sib xyaw ua ke raws li cov chaw tsim khoom cov lus qhia pom tias ntxiv tus neeg sawv cev rau cov khoom sib xyaw uas twb muaj lawm thiab tom qab ntawd nplawm tau txais txiaj ntsig zoo dua.

Vim yog cov kev cai tshwj xeeb ntawm qee qhov haujlwm, kev tsim kho yuav tsum ua kom tiav nyob rau hauv lub sijhawm teev tseg. Thaum cov qauv kuaj ua tau raws li cov kev xav tau no, cov teeb meem tshwm sim tshwm sim ntawm qhov chaw, xws li kev thauj mus los deb, cov tsheb khiav qeeb, thiab lub sijhawm xav tau rau cov neeg ua haujlwm ua haujlwm, ua rau nyuaj rau kev tswj xyuas lub sijhawm.

Txhawm rau kom muaj kev tsim kho kom zoo, peb tau sim simulation kev sim hauv chav kuaj. Cov khoom siv pob zeb tau ntsuas thiab sib xyaw ua ke raws li qhov xav tau proportions. Tom qab sib tov, tus nqi xav tau ntawm tus neeg sawv cev ceev tau ntxiv rau cov pob zeb tshiab thiab manually stirred tam sim ntawd, nrog rau lub sij hawm pib ntawm qhov no. Simulated kev tsim kho tau ua nyob rau hauv ib qho chaw npaj. Tom qabib thiab ib nrab teev, dej tau txau rau ntawm qhov chaw uas tsis muaj kev puas tsuaj. Txawm tias thaum dej tau thov nyob rau hauv lub siab, lub pob zeb nto tseem nyob twj ywm, ua tau raws li qhov xav tau.

Rau kev tsim kho kom zoo ntawm cov khoom siv no, peb siv qhov sib xyaw hauv nruab nrab ntawm cov nroj tsuag batching, xa cov sib tov mus rau qhov chaw tsim kho hauv lub sijhawm. Nyob rau ntawm qhov chaw, tus neeg sawv cev ceev tau ntxiv rau lub pob zeb sib tov tsheb raws li lub chaw soj nstuam pom zoo noj, sib tov sai, thiab tom qab ntawd tshem tawm rau kev tsim kho. Cov txheej txheem no tau ua kom qhov sib tov tuaj txog thiab teem sijhawm nyob rau hauv lub sijhawm xav tau, ua tiav cov txheej txheem tsim kho. Tus neeg sawv cev ceev ceev tau ua haujlwm tau zoo hauv nws lub luag haujlwm hauv cov pob zeb, ua tiav cov txiaj ntsig xav tau.

Kev Xav Tau

Qauv:

JC477-2005 "Quick-set Agent for Shotcrete"

Thawj txheej: tsawg dua3 feeb

Cov txheej txheem kawg: tsawg dua8 feeb

Ib hnub muaj zog: ntau dua7 MPa ua

Cov kev ceev faj:

Kev noj tshuaj: 3-5%

Rau txhaj tshuaj tiv thaiv, siv unweatheredPortland cement, zoo tib yam Portland cement, los yogPortland cementntawm qib42.5los yog saum toj no. Tsis txhob siv cov khoom ntub dej los yog clumped cement.

Siv pebbles los yog crushed pob zeb nrog ib tug siab tshaj particle loj ntawm20 hli, thiab nyuaj nruab nrab los yog coarse xuab zeb nrog ib tug fineness modulus ntau dua2.5.

Hom shotcrete mix ratio:350 kg ntawm cement ib m³, 60% xuab zeb ratio, dej-cement piv ntawm 0 42-0.50.

Homogeneity Indicators:

Qhov tshwm sim: hmoov

Cov dej noo: Tsawg dua los yog sib npaug2%

Kev zoo: Tsawg dua los yog sib npaug15%

Cov yam ntxwv ua haujlwm:

Qhov tseem ceeb ceev-setting nyhuv, thawj txheejTsawg dua lossis sib npaug li 5 feeb, kawg setTsawg dua lossis sib npaug li 10 feeb, zoo shotcrete kev ua tau zoo, tsawg rebound tus nqi, tsawg pov tseg, pov thawj kev lag luam txiaj ntsig. Zoo cohesion ntawm cov khoom txau, tuab ib txheej txheej, arch spray mus txog130 hli, phab ntsa txau200 hli, cov ntsiab lus tsis tshua muaj alkali, tsis muaj tshuaj lom, tsis muaj nplaim taws, tsis muaj corrosion ntawm rebar. Lub zog thaum ntxov ntawm kev txhaj tshuaj tiv thaiv, qhov cuam tshuam tsawg kawg ntawm lub zog tom qab,28-hnub compressive zog tuav tus nqi ntawm 80%.

Daim ntawv thov:

Haum rau kev txhaj tshuaj molding thiab txhaj tshuaj mortar hauvkev tiv thaiv, kev txuag dej, mining, tunnels, subways, caverns, thiab lwm cov dej num hauv av, nrog rau cov qauv kev tiv thaiv tus kheej,tiv thaiv thiab sealing, ceev hauv av pob zeb kev tsim kho, thiabKev kho vaj tse thaum muaj xwm txheej ceev.