Hloov kho cov khoom ntxiv xws li cov khoom sib xyaw ua ke, cov cellulose ethers, coagulation regulators, redispersible latex hmoov, air-entraining agents, thaum ntxov muaj zog cov neeg sawv cev, dej reducers, thiab lwm yam, uas yog ntxiv raws li qhov xav tau ntawm peb tes num, zoo heev txhim kho kev ua tau zoo. ntawm ready-mixed mortars. Lub cev thiab mechanical zog.
1. Npaj-tiav mortar additive
Cov anionic surfactant uas muaj nyob rau hauv cov khoom sib xyaw ua ke hauv qhov project tuaj yeem ua rau cov cement hais sib cais, tso cov dej dawb los ntawm cov cement aggregate, tag nrho diffuse lub aggregated cement mass, thiab ua kom dej kom tiav cov qauv compact thiab ua kom cov mortar ntom. Lub zog, txhim kho impermeability, tawg kuj thiab durability. Lub mortar sib xyaw nrog cov khoom sib xyaw ua ke muaj kev ua haujlwm zoo, kev tuav dej siab, muaj zog cohesive quab yuam, tsis muaj tshuaj lom, tsis muaj mob, nyab xeeb thiab ib puag ncig zoo thaum ua haujlwm. Nws yog tsim rau zus tau tej cov masonry zoo tib yam, plastering, hauv av, thiab waterproof mortar nyob rau hauv npaj-mixed mortar factories. Nws yog siv rau cov masonry thiab kev tsim kho ntawm pob zeb av nplaum cib, ceramsite cib, hollow cib, qhob blocks, unburned cib nyob rau hauv ntau yam industrial thiab civil vaj tse. Kev tsim kho ntawm sab hauv thiab sab nrauv phab ntsa plastering, pob zeb phab ntsa plastering, pem teb thiab ru tsev leveling, waterproof mortar, thiab lwm yam.
2. Cellulose ether
Hauv kev npaj sib xyaw mortar, cellulose ether yog ib qho tseem ceeb ntxiv uas tuaj yeem txhim kho kev ua haujlwm ntawm cov khib nyiab ntub dej thiab cuam tshuam rau kev tsim kho ntawm mortar. Tsim nyog xaiv ntawm cellulose ethers ntawm ntau yam, txawv viscosities, txawv particle loj, txawv degrees ntawm viscosity thiab ntxiv cov nyiaj yuav muaj txiaj ntsig zoo rau kev txhim kho kev ua haujlwm ntawm cov hmoov qhuav mortar.
Kev tsim cov cellulose ether yog tsim los ntawm ntuj fibers los ntawm alkali dissolution, grafting cov tshuaj tiv thaiv (etherification), ntxuav, ziab, submersion thiab lwm yam txheej txheem. Hauv kev tsim cov khoom siv hauv tsev, tshwj xeeb tshaj yog cov hmoov qhuav mortar, cellulose ether plays lub luag haujlwm tsis tuaj yeem hloov tau, tshwj xeeb tshaj yog nyob rau hauv kev tsim cov mortar tshwj xeeb (hloov mortar), nws yog ib qho tseem ceeb thiab tseem ceeb tivthaiv. Cellulose ether plays lub luag hauj lwm ntawm dej tuav, thickening, ncua cov cement hydration zog, thiab txhim kho kev tsim kho. Lub peev xwm tuav dej zoo ua rau cov cement hydration ntau dua, tuaj yeem txhim kho cov viscosity ntawm cov khib nyiab ntub dej, ua kom lub zog sib txuas ntawm mortar, thiab kho lub sijhawm. Ntxiv cellulose ether rau cov neeg kho tshuab txau mortar tuaj yeem txhim kho cov tshuaj txau lossis kev ua haujlwm thiab kev ua haujlwm ntawm cov tshuaj khib nyiab. Yog li ntawd, cellulose ether tau dav siv los ua ib qho tseem ceeb additive nyob rau hauv npaj-mixed mortar. Cov cellulose ethers siv nyob rau hauv npaj sib tov mortar yog tsuas yog methyl hydroxyethyl cellulose ether thiab methyl hydroxypropyl cellulose ether. , lawv tuav ntau tshaj 90% ntawm kev ua lag luam.
3. Redispersible latex hmoov
Redispersible latex hmoov yog cov hmoov thermoplastic resin tau los ntawm kev ziab kom qhuav thiab ua tiav tom qab ntawm polymer emulsion. Nws yog tsuas yog siv nyob rau hauv kev tsim kho, tshwj xeeb tshaj yog qhuav hmoov mortar kom cohesion, cohesion thiab yooj.
Lub luag hauj lwm ntawm redispersible latex hmoov nyob rau hauv mortar: redispersible latex hmoov ua ib zaj duab xis tom qab dispersion thiab ua raws li ib tug thib ob nplaum los txhim kho adhesion; kev tiv thaiv colloid yog absorbed los ntawm lub mortar system thiab yuav tsis raug puas los ntawm dej tom qab tsim zaj duab xis los yog ob dispersions; cov zaj duab xis-forming polymer resin yog muab faib thoob plaws hauv lub mortar system raws li ib tug reinforcing khoom, yog li ua kom lub cohesion ntawm lub mortar.
Redispersible latex hmoov nyob rau hauv ntub mortar tuaj yeem txhim kho kev tsim kho, txhim kho kev khiav hauj lwm, nce thixotropy thiab sag kuj, txhim kho cohesion, qhib lub sij hawm ntev, txhim khu cov dej tuav, thiab lwm yam. Tom qab cov tshuaj kho tau zoo, nws tuaj yeem txhim kho tensile zog. Tensile lub zog, txhim kho khoov lub zog, txo elastic modulus, txhim kho deformability, nce cov khoom compactness, txhim kho hnav tsis kam, txhim kho cohesive zog, txo carbonization qhov tob, txo cov dej nqus ntawm cov khoom, thiab ua rau cov khoom muaj zoo heev dej repellency dej raws li thiab lwm yam teebmeem.
4. Air-entraining tus neeg saib xyuas
Air-entraining tus neeg saib xyuas, tseem hu ua air-entraining tus neeg saib xyuas, yog hais txog kev qhia txog ntau tus neeg sib txawv ntawm micro-npuas thaum lub sij hawm sib tov sib xyaw, uas tuaj yeem txo qhov nro ntawm cov dej hauv mortar, uas ua rau muaj kev cuam tshuam zoo dua. thiab txo mortar sib tov. Los ntshav, cais cov additives. Tsis tas li ntawd, kev taw qhia ntawm cov npuas zoo thiab ruaj khov ntawm cov huab cua kuj tseem txhim kho kev tsim kho kev ua haujlwm. Tus nqi ntawm huab cua qhia nyob ntawm seb hom mortar thiab cov khoom siv sib xyaw siv.
Txawm hais tias tus neeg saib xyuas huab cua muaj tsawg heev, tus neeg saib xyuas huab cua muaj kev cuam tshuam zoo rau kev ua haujlwm ntawm cov khoom sib xyaw ua ke, uas tuaj yeem txhim kho kev ua haujlwm ntawm cov khoom sib xyaw ua ke, txhim kho impermeability thiab Frost tsis kam ntawm mortar. , thiab txo qhov ntom ntawm mortar, txuag cov ntaub ntawv thiab ua kom cov cheeb tsam tsim kho, tab sis qhov sib ntxiv ntawm cov khoom siv cua nkag yuav txo tau lub zog ntawm mortar, tshwj xeeb tshaj yog cov mortar compressive. Correlation siv los txiav txim qhov pom zoo npaum li cas.
5. Tus neeg saib xyuas lub zog thaum ntxov
Tus neeg saib xyuas lub zog thaum ntxov yog ib qho khoom ntxiv uas tuaj yeem ua kom muaj zog thaum ntxov ntawm cov tshuaj khib nyiab, feem ntau yog inorganic electrolytes, thiab ob peb yog cov organic tebchaw.
Lub accelerator rau npaj-mixed mortar yuav tsum tau powdery thiab qhuav. Calcium formate yog qhov siv dav tshaj plaws hauv kev npaj sib xyaw mortar. Calcium formate tuaj yeem txhim kho lub zog thaum ntxov ntawm mortar, thiab ua kom lub hydration ntawm tricalcium silicate, uas tuaj yeem txo cov dej mus rau ib qho twg. Ntxiv mus, lub cev lub cev ntawm calcium formate yog ruaj khov ntawm chav tsev kub. Nws tsis yooj yim rau agglomerate thiab yog tsim nyog rau daim ntawv thov nyob rau hauv qhuav hmoov mortar.
6. Dej reducer
Dej txo tus neeg saib xyuas yog hais txog cov khoom ntxiv uas tuaj yeem txo cov dej sib xyaw ua ke raws li qhov xwm txheej ntawm kev ua kom qhov sib xws ntawm cov mortar yeej zoo ib yam. Cov dej reducer feem ntau yog ib qho surfactant, uas tuaj yeem muab faib ua cov dej zoo tib yam, cov dej ua haujlwm siab, cov dej ua kom muaj zog thaum ntxov, cov dej tsis qab, cov dej ua haujlwm siab thiab cov dej txo qis raws li lawv txoj haujlwm. .
Cov dej reducer siv rau cov khoom sib xyaw ua ke yuav tsum tau ua hmoov thiab qhuav. Xws li cov dej reducer tuaj yeem sib npaug sib npaug hauv cov hmoov qhuav mortar yam tsis txo cov txee lub neej ntawm cov khoom sib xyaw npaj txhij. Tam sim no, daim ntawv thov ntawm cov dej txo tus neeg sawv cev hauv kev npaj sib xyaw mortar feem ntau yog hauv cov cement self-leveling, gypsum self-leveling, plastering mortar, waterproof mortar, putty, thiab lwm yam. mortar khoom. Xaiv.
Lub sij hawm xa tuaj: Plaub Hlis-10-2023