Hmoov tsis cug yog polymer qhuav sib xyaw los yog tej hmoov qhuav prefabricated cug. Nws yog hom ntawm xis mas thiab gypsum yog lub ntsiab ntawm cov khoom siv. Raws li cov haujlwm sib txawv ntawm lub tsev sib txawv, cov hmoov av qhuav thiab cov ntxiv tau ntxiv rau hauv qee yam kev faib ua feem. Nws yog cug cov khoom siv tsev uas tuaj yeem sib xyaw ua key, thauj mus rau lub chaw tsim kho hauv hnab lossis hauv ntau, thiab tuaj yeem siv ncaj qha tom qab ntxiv dej.
Ntau Yam Tshuaj Khib Cov Khoom Noj Xws Li Cov Hmoov Qhuav Cov Khaub Ncaws, Cov Hmoov Qhuav Ntsa
Hmoov hmoov qhuav feem ntau muaj tsawg kawg yog peb ntu: binder, sib sau ua ke, thiab tshuaj khib addititives.
RAW cov khoom muaj zog ntawm cov hmoov hlau hmoov qhuav:
1. Tshuaj Khib Cov Khoom Siv
(1) Inorganic adhesive:
Inorganic cov nplaum suav nrog cov khoom siv hluav taws xob zoo tib yam nkaus, cov alumina siab, cov cement, thiab lwm yam, thiab lwm yam.
(2) organic nplaum:
Organic Adhesive tsuas yog hais txog redispersible yas hmoov, uas yog ib tug muaj hmoov pleev tshuaj kom qhuav (thiab xaiv cov tshuaj ntxiv uas tsim nyog) ntawm polsymer emulsion. Lub Qhuav Polymer hmoov thiab dej ua emulsion. Nws tuaj yeem ua kom lub cev qhuav dej ntxiv, yog li cov qauv polymer cov qauv hauv cov txheej txheem xis, thiab ua lub luag haujlwm ntawm kev kho cov xis.
Raws li cov sib txawv sib txawv, kev hloov kho ntawm cov tshuaj pleev ib ce kom zoo, thiab hnav tsis zoo, kev siv zog, cohesion thiab ntom ntom ntom muaj peev xwm thiab kev tsim kho.
Redispersible lig hmoov hmoov rau qhuav sib xyaw ua ke tsuas yog suav nrog cov hom hauv qab no: ① Styrene-Butadiene copolymer; Styrene-acrylic acid copolymer; ③ Vinyl acetate copolymer; ④ polyacrylate Homopolymer; Styrene acete acetate copolymer; ⑥ Vinyl acetate-ethylene copolymer.
2. Aggregate:
Aggregate tau muab faib ua coarse aggrate thiab zoo sib sau. Ib qho ntawm cov ntaub ntawv tseem ceeb ntawm cov pob zeb. Nws mas ua raws li lub cev pob txha thiab txo cov hloov pauv hloov los ntawm cov khoom siv khov kho, thiab nws kuj tseem siv tau los ua cov khoom siv khov kho rau cov khoom siv. Muaj tej yam ntuj sib xyaw ua ke thiab cov khoom siv cuav, cov qub xws li gravel, pebbles, pumice, ntuj xuab zeb, thiab lwm yam .; Lub tom kawg xws li Cinder, slab, ceramsite, nthuav perlite, thiab lwm yam.
3. Cug additives
(1) cellulose ether:
Hauv cov cug qhuav, ntxiv rau ntawm cellulose ether yog tsawg heev (feem ntau nws yog lub ntsiab ntxiv uas cuam tshuam kev tsim kho ntawm cug.
Nyob rau hauv cov hmoov chot, vim ionic cellulose tsis ruaj khov nyob rau hauv muaj cov hmoov av calcium uas siv cov txiv qaub, thiab lwm yam raws li cov ntaub ntawv tsoosting. Hydroxyethyl cellulose kuj siv nyob rau qee cov khoom siv qhuav, tab sis cov feem me me me heev.
Lub cellulose cov neeg muaj cai siv nyob rau hauv cov hmoov cho kas yog mas hydrothethy etherylulose etherylculose ether-ether (HPMC), hu ua MC.
Cov yam ntxwv MC: Nyeg thiab kev tsim kho yog ob yam uas cuam tshuam ib leeg; Dej khaws cia, kom tsis txhob evaporation sai ntawm dej, yog li ntawd cov tuab ntawm lub collh txheej tuaj yeem txo qis.
(2) tiv thaiv fiber ntau
Nws tsis yog kev tsim tawm ntawm cov neeg niaj hnub los sib xyaw ua ke rau hauv colleg li anti-clear invest Prim zog cov ntaub ntawv. Hauv lub sijhawm puag thaum ub, peb cov poj koob yawm txwv tau siv cov khoom siv ua kom zoo dua rau cov tuam tsev thiab cov av nplaum, siv cov pob txha mos los ua ke, siv cov pob txha mos ua ke, siv cov pob zeb tsis zoo Txhawm rau tsim vaj tse, siv tib neeg thiab tsiaj cov plaub hau los kho kev heartth, siv pulp fibers, txiv qaub, thiab gypsum rau cov phab ntsa pleev xim thiab ua kom cov khoom siv gypsum, thiab lwm yam. Tos. Ntxiv cov fibers rau hauv Maas paus cov ntaub ntawv los ua fiber ntau txhawb txoj kev hloov ua kom zoo nkauj yog tsuas yog muaj teeb meem ntawm kev siv xyoo tsis ntev los no.
Cov Khoom Siv Ciees, Cheebtsam yuav ua rau muaj kev hloov pauv ntawm micrasent, thiab yuav nthuav dav ntawm cov kev hloov pauv ntawm cov micrasent, thiab qhov ntsuas kub hloov, thiab cov khoom siv sab nraud. Thaum raug rau sab nraud quab yuam, cov fibers ua lub luag haujlwm ua lub luag haujlwm nyob rau hauv kev txwv thiab tabkaum kev nthuav dav ntawm micro-kab nrib pleb. Cov fibers yog criss-hla thiab isotropic, haus thiab ua kom muaj kev ntxhov siab ntxiv ntawm cov kab nrib pleb, thiab ua lub luag haujlwm hauv kev thaiv cov kab nrib pleb.
Qhov sib ntxiv ntawm cov fibers tuaj yeem ua rau cov colut tov qhuav muaj cov txiaj ntsig zoo, kev tawm tsam siab, tawg tsis kam, hnav tsis kam thiab lwm yam haujlwm.
(3) Dej txo tus neeg sawv cev
Dej reducer yog lub pob zeb ua admixture uas tuaj yeem txo cov dej sib tov thaum tswj cov pob zeb uas tsis hloov pauv. Feem ntau ntawm lawv yog anionic surfactanate, xws li livosulfonate, txhim kho kev siv dej sib tov, txhim kho cov dej sib tov, txhim kho cov fluases ntawm cov qhob sib xyaw; lossis txo qis cov khoom siv xis mas tau thiab tseg cov cement.
Raws li cov dej txo thiab ntxiv dag zog rau tus neeg sawv cev dej, nws tau muab faib ua cov dej haus kom muaj tsawg dua 8%, tseem muaj kev txo qis qis dua li 8% (Kuj tseem hu ua SuperPasticizer) Yas, cov dej txo qis dua 14%, xws li cov dej haus dej tsawg dua 14% tsis pub tsawg tshaj 25%, polycarboxylic acid nws yog sawv cev los ntawm superplasticizer), thiab nws tau muab faib ua lub zog ua lub zog, hom qauv thiab siv hom.
Raws li cov tshuaj lom neeg muaj pes tsawg leeg, nws feem ntau muab faib ua: Lignosulfonate-based superplasticizers, nabplasticizers, thiab fatty acid-raws superplasticizers. Cov neeg sawv cev dej, polycarboxylate-based superplasticizers.
Daim ntawv thov dej txo tus neeg sawv cev rau hauv cov hmoov av qhuav tau muaj cov hauv qab no (gypsum tus kheej leveling, cug colt rau plastering, waterproaf colling, putty, thiab lwm yam.
Qhov kev xaiv ntawm Dej Reducing tus neeg sawv cev yuav tsum tau xaiv raws li cov ntaub ntawv sib txawv thiab cov tshuaj sib txawv txawv.
(4) hmoov txhuv nplej siab ether
Cov hmoov txhuv nplej siab ether feem ntau yog siv hauv kev sib xyaw ntawm cug, Maas thiab txiv qaub, thiab kev hloov pauv ntawm cug. Cov hmoov txhuv nplej siab feem ntau yog siv rau hauv kev sib txuas nrog cov neeg tsis tau hloov kho thiab hloov kho cellulos. Nws yog qhov haum rau ob qho nruab nrab thiab cov tshuab alkaline, thiab tau tshaj tawm nrog feem ntau additives hauv gypsum thiab cov hmoov txhuv nplej siab thiab polyvinyl acetate thiab lwm yam dej-soluble polymers).
Cov yam ntxwv ntawm cov hmoov txhuv nplej siab ether tsuas yog dag hauv: txhim kho sag tiv taus; txhim kho kev tsim kho; Txhim kho cov kab hluav taws xob tawm, tsuas yog siv rau: tes ua lossis tshuab-txau cug raws cov cement thiab gypsum, caulk thiab nplaum; cov nplaum nplaum nplais; Masontry tsim lub tshuaj khib.
NCO TSEG: Cov koob yees duab ib txwm ntawm cov hmoov txhuv nplej siab ether hauv cug yog 0.01-0.1%.
(5) Lwm yam kev ntxiv ntxiv:
Tus neeg sawv cev cua Promraining qhia txog ntau tus ntawm cov txheej txheem hluav taws xob uas muaj kev sib xyaw ua ke ntawm cov ntshav huv thiab sib cais los ntshav thiab sib cais ntawm lub cug cug-qhob sib xyaw. Cov khoom sib ntxiv, feem ntau yog cov roj sodium sulfonate thiab sodium sulfate, cov tshuaj noj yog 0.005-0.02%.
Retarders yog tsuas yog siv nyob rau hauv gypsum mortars thiab gypsum raws li cov fitters. Nws yog tsuas yog txiv hmab txiv ntoo cov ntsev, feem ntau ntxiv rau hauv 0.05% -0.25%.
Hydrophobic cov tshuaj tiv thaiv (dej repellents) tiv thaiv dej los ntawm kev nkag mus rau hauv lub tshuaj khib, thaum lub tshuaj khib tseem qhib rau differ rau diffuse. Hydrophobic polymer recispersible hmoov yog siv.
Defosamer, los pab tso cov pa npuas tso tawm thiab tsim tawm thaum lub caij compressive, txhim kho lub zog compressive, txhim kho cov kev mob siab, ntau npaum li cas 0.0,5%.
Lub sijhawm Post: Feb-09-2023