Polypropylene fiber yog lub tsoob tshuaj uas zoo thiab muaj kev pab rau concrete. Hauv no, Hezhen yog qhov chaw uas tsis txhawb tsoob tshuaj no rau kev siv hauv concrete kom concrete yuav zoo dua thiab zoo dua. PP fibers yog qhov ntau thiab nyooj heev. Thaum sib npaug nrog concrete, lawv pab hlub cov lus concrete ua ke. Qhov no pab tshem tawm kev khaub ncua thiab kev puas ntseeg ntawm concrete thaum lub neej dhia mus. Txhua tus kws kho thiab tus kws kho tswv yim thiaj xav siv polypropylene fiber rau lawv cov project concrete vim nws pab ua kom quality ntawm wet cement zoo dua. Thaum siv tsoob tshuaj no, peb tsis yog ua tau cov khoom zoo dua tsuas li, tab sis nws kuj pab ua kom qhov ua haujlwm yooj dua rau txhua tus uas muaj kev xav siv. Ntawd li, kev sib npaug ntawm Phoob Tshuab Phoob kuj tuaj yeem pab ua kom qhov concrete zoo dua thaum sib npaug nrog kab mob polypropylene.
Muaj qhov zoo ntau yam rau kev siv lub fiber polypropylene hauv concrete. Thaum kawg, nws pab txo qhov tshuav. Concrete yuav tshuav los ntawm qhov cim ntau yam, piv txwv li qhov cim ntawm qhov hluav tuam tshuas lossis qhov nyiaj qub loj. Peb siv lub fiber polypropylene uas muaj kev sib txuas rau ib leeg kom concrete tsis tshuav. Lub network no pab tso concrete ua ib qho thiab tsis tshuav thaum nws tau txais kev puas tsuaj. Yog li cas peb thiaj xav tias muaj lub rope ntau yam nyob hauv concrete kom txhua yam nyob ib qho. Lub fiber polypropylene kuj tuaj yeem pab ua concrete nyob hauv qhov nyiaj qub ntau yam. Qhov no yog qhov txaus rau cov kev lag luam uas xav tau qhov nyiaj qub, piv txwv li rau cov tsev nyob hauv qhov siab lossis cov tsev nyob hauv qhov siab heev. Concrete nyob hauv qhov nyiaj qub ntau yam yog qhov zoo dua rau kev siv thiab tuaj yeem pab sau qhov tshuaj. Ntawd mus, lub fiber polypropylene pab tso concrete tsoom rau kev tswj hluav tuam tshuas thiab kev tswj cov lus tshuaj. Qhov no yog qhov txaus rau qhov tseem ceeb uas thaum concrete tau txais kev tswj hluav tuam tshuas lossis tau txais kev tswj cov lus tshuaj, nws yuav nyob hauv qhov siab dua. Piv txwv li, cov rooj tsheb thiab cov rooj tsev uas tau siv lub fiber no yuav muaj qhov zoo dua thiab tsis xav tau kev kho dua rau qhov tshuav. Qhov zoo ib yam ntxiv yog nws pab rau kev tswj. Qhov tswj yog qhov uas concrete tau tswj thiab tau nyob hauv qhov siab dua. Lub fiber polypropylene tuaj yeem pab rau qhov no thiab ua concrete zoo dua rau kev siv. Tom qab ntawd, kev siv lub fiber polypropylene rau concrete pab tsoom rau qhov zoo ntau yam uas pab tsoom rau qhov zoo ntawm kev lag luam. Cov neeg siv cov khoom no yuav pom tias cov tsev uas tau siv cov khoom no yuav nyob hauv qhov siab dua thaum muaj lub sijhawm.
Kev nyuaj thiab kev ntxhuas yog ob qhov feem ntawm cov lus uas txhua tus neeg xav tau rau hauv concrete. Cov feem no yog ua kom zoo dua los ntawm polypropylene fiber. Thaum kawg, cov fiber no siv los qhia kev puas tsuaj raws li qhov tseeb rau hauv concrete. Kev puas tsuaj yog muab rau hauv concrete, thiab nws tuaj yeem ua rau concrete muaj kev nyuaj. Cov polypropylene fiber no yog li cov rooj tshuaj, qhia kev puas tsuaj kom tsis muaj chav twg tau kev puas tsuaj loj heev. Qhov no yog los txog kev tswj kev tsoo. Polypropylene fiber kuj pab tswj kev tsoo ntawm concrete thaum muaj kev sov thiab kev ceeb. Rau cov chav uas muaj kev hloov kev sov thiab kev ceeb, li Ontario, concrete tuaj yeem tsoo thaum muaj dej sov hauv nws. Cov fiber no daws qhov kev puas tsuaj no, ua concrete kom zoo dua rau kev hloov hauv qhov kev sov thiab kev ceeb. Qhov no yog li cas concrete ntawm cov chav sov yuav nyob ntev dua thaum muaj polypropylene fiber muab rau hauv nws, thiab kuj yog li cas muab fiber no rau hauv concrete yog ua nws kom tsis muaj qhov kho thiab tsis muaj qhov tshuaj. Qhov no yog li cas nws yuav tsis muaj dej thiab lwm yam khoom uas ua rau nyuaj tuaj yeem nkag mus rau hauv nws. Dej tuaj yeem ua rau concrete nyuaj thaum nws nkag mus rau hauv. Ntxiv rau qhov dej nkag mus rau hauv nws tsis loj, concrete yuav nyob zoo thiab nyob txaus. Thaum kawg, kev nyuaj ntawm concrete yog ua kom zoo dua vim cov fiber no yog ua li cov khoom tswj kev nyuaj. Nws pab concrete kom tsis tsoo thiab kom nws tuaj yeem nyob ib puag ncig, yam tias thaum muaj kev nyuaj loj. Ntxiv rau polypropylene fiber los ntawm Hezhen, cov thawj tsov tuaj yeem paub tias nws yuav muaj concrete uas muaj kev nyuaj zoo thiab muaj kev nyuaj txaus, thiab yog li cas yuav muaj kev suav tsis loj thiab kev lag luam zoo dua rau txhua tus.
Yog ib qho kev txwv tshaj plij uas koj yuav tsum xaum nrog thaum koj ua qhov kev ua haujlwm ntawm cov dej txos. Qhov dej txos no yuav pab ua kom cov dej txos zoo dua thiab nyuaj dua. Qhov ua haujlwm thib rau uas koj yuav tsum xav txog yog qhov chaw uas koj yuav ua. Yog nws yog ib qho kev ua haujlwm rau lub rooj tsis, ib qho tsev, lossis ib qho rooj tsis? Cov kev ua haujlwm sib txawv yuav tsum muaj cov dej txos sib txawv. Piv txwv li, yog koj ua ib qho rooj tsis uas yuav muaj cov ntaub cua loj mus nyob hauv nws, koj yuav xav tau cov dej txos uas pab ua kom cov dej txos nyuaj dua. Hezhen muaj cov dej txos polypropylene sib txawv ntau yam uas tuaj yeem siv rau qhov sib txawv, yog li koj yuav tsum nrhiav xyuam seb lawv muaj dab tsi.
Koj yuav tsum xav txog lub hauv qhov ntau ntawm cov kab mob uas koj yuav xav tau. Yog tias tsis ntau dua, nws yuav tsis muaj kev sib koom uas koj xav tau; tab sis yog tias ntau dua, nws yuav cuam tshuam rau qhov kev coj ntawm cov concrete. Hezhen tuaj yeem pab koj nrhiav qhov ntau ntawm cov kab mob uas koj xav tau – qhov ntau ntawm cov hnub uas zoo rau koj cov qhov chaw thiab cov kev ua haujlwm. Thiab, nyob rau thaum kawg, koj yuav tsum nco ntsoov rau qhov nqi. Ko jyee xav tau cov khoom zoo tshaj plaws, tab sis koj kuj muaj qhov nqi uas koj yuav tsum hlub. Hezhen muab cov khoom zoo tshaj plaws thiab muaj qhov nqi zoo, yog li koj tuaj yeem nrhiav tau cov kab mob zoo tshaj plaws rau koj cov concrete thiab kuj muaj nqi los ua lwm yam. Nrog cov lus xav no tag nrho – koj cov qhov chaw sib txawv, cov kab mob sib txawv, qhov ntau thiab qhov loj (cov kab mob polypropylene) thiab koj cov nqi – koj tuaj yeem xaiv tau cov kab mob polypropylene uas zoo rau koj cov concrete.
Cov qhov cua ntawm cov ntaub thiab qhov cua ntawm cov ntaub tshuaj yog ua haujlwm los txhawb qhov kev puas tsuaj raws li qhov kev puas tsuaj ntawm cov ntaub tshuaj. Thaum tsis muaj qhov puas tsuaj loj ib qho, qhov cua ntawm cov ntaub thiab qhov cua ntawm cov ntaub tshuaj yuav pab ua qhov puas tsuaj ntau yam uas tsis puas tsuaj rau cov ntaub tshuaj li. Yog li ntawd, qhov kev nyab xeeb ntawm cov ntaub tshuaj tsis haum rau qhov kev nyab xeeb thaum tsis muaj cov ntaub thiab qhov cua ntawm cov ntaub tshuaj. Cov ntaub thiab qhov cua ntawm cov ntaub tshuaj Hezhen polypropylene yog qhov tseem ceeb los pab tshwj xeeb rau qhov no, thiab ntawd yog qhov uas cov neeg sib xyaw tau txais los ntawm Hezhen: Qhov tseem ceeb rau cov neeg sib xyaw uas xav kom cov lus qhia ntawd yuav nyob dua thiab nyob zoo thaum muaj kev sib xyaw.
Lub tswv yim polypropylene kuj txo qhov kev npaj thiab kev puas ntawm cov dej tsis tau hloov, thiab ntxiv qhov nyab xeeb ntawm cov concrete. Nws ua rau cov concrete yuav tsis muaj kev cuam tshuam los ntawm qhov kub thiab qhov yuam (temperature fluctuations) thiab lwm yam khoom uas nyob ntsug. Piv txwv li, yog koj nyob rau hauv qhov chaw uas muaj qhov kub heev thiab qhov yuam heev, qhov ntxiv ntawm kev nyab xeeb los ntawm cov tswv yim no yuav pab koj tso cai rau kev puas ntawm koj cov concrete thaum nws npaj thiab ntxiv ntawm lub sijhawm. Vim li no, tsuas yog kev siv cov tswv yim polypropylene ntawm Hezhen yuav pab koj sau tau pes tsheej nyob rau hauv lub sijhawm xwb, thiab nws kuj pab tso cai rau koj cov concrete nyob rau hauv lub sijhawm siab. Tsis tas li ntawd, kev siv cov khoom tswv yim li Cenospheres yuav pab ntxiv qhov ua haujlwm ntawm cov concrete thaum sib dluag nrog cov tswv yim polypropylene.
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