Video: Dab tsi yog fiber ntau siv hauv pob zeb?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Fiber ntau txhawb ntxiv pob zeb (FRC) yog pob zeb muaj cov khoom siv fiber ntau uas ua rau nws cov qauv kev ncaj ncees. Nws muaj luv discrete fibers uas yog uniformly faib thiab randomly oriented. Fibers suav nrog steel fibers , iav fibers , hluavtaws fibers thiab ntuj fibers.
Kuj nug, vim li cas fibers siv hauv pob zeb?
Fibers feem ntau yog siv hauv pob zeb los tswj kev tawg vim cov yas shrinkage thiab kom qhuav shrinkage. Lawv kuj txo cov permeability ntawm pob zeb thiab yog li txo cov ntshav dej. Qee hom fibers ua kom muaj kev cuam tshuam ntau dua-, puas-, thiab tawg-ua haujlwm hauv pob zeb.
Ib sab saum toj no, koj puas tuaj yeem pom fiber ntau hauv pob zeb? Lwm qhov teeb meem yog qhov mesh ua tsis tiv thaiv lossis txo qhov tawg-nws tsuas yog tuav cov kab nrib pleb uas twb tshwm sim ua ke. Yog koj ua tau saib mus rau hauv ib seem ntawm pob zeb nchuav nrog fibers koj yuav pom lab ntawm fibers faib nyob rau hauv tag nrho cov lus qhia thoob plaws hauv lub pob zeb sib tov.
Kuj Paub, qhov twg yog Fiber reinforced pob zeb siv?
Qhov ratio ntawm lub fiber ntau yog qhov piv ntawm nws qhov ntev rau nws txoj kab uas hla. Qhov piv txwv zoo sib xws li ntawm 30 txog 150. Fiber ntau - kev txhawb zog yog mas siv nyob rau hauv shotcrete, tab sis kuj yog siv hauv qhov qub pob zeb . Fiber ntau - txhawb ntxiv li qub pob zeb feem ntau yog siv rau hauv pem teb thiab pavements.
Fiber reinforced pob zeb ua li cas?
Raws li qhov qub pob zeb , fiber reinforced qhob yog ua los ntawm kev sib npaug ntawm qhov luv luv thiab zoo dispersed fibers rau hauv dog dig pob zeb . Lub hom phiaj rau qhov sib ntxiv ntawm luv luv fibers yog los txhim kho lub zog tensile thiab cuam tshuam-ua hauj thiab txo cov brittleness ntawm pob zeb.
Pom zoo:
Yuav ua li cas yog qhov tsawg kawg nkaus pob zeb npog nyob rau hauv mm ntawm ib tug cam khwb cia nyob rau hauv qhov chaw pob zeb tso tawm tsam thiab mus tas li raug rau lub ntiaj teb?
Table-1: Yam Tsawg Npog Thickness rau Cast-in-Place Qhob Hom kev tsim ua vaj tse hla, hli Qhob nrum tiv thaiv thiab txuas mus tas li nrog hauv av 75 Pob zeb sib chwv nrog av lossis dej No. 19 txog No. 57 tuav 50 No. 16 bar thiab me dua 40
Dab tsi yog qhov siab tshaj plaws rau lub pob zeb pob zeb?
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