Lub teeb pob zeb Additives | High-Performance Foaming Agents rau Cellular Concrete
Polyvinyl cawv (PVA) fiber ntau yog fiber ntau nrog kev hloov pauv ntawm elasticity, siab tensile zog thiab siab alkali tsis kam, thiab tau siv dav hauv cov cement-based reinforcements. Kev tshawb fawb qhia tias PVA fiber ntau muaj qhov sib txawv zoo hauv cov cement pob zeb, tuaj yeem txhim kho lub zog flexural thiab toughness ntawm pob zeb, thiab tuaj yeem txwv txoj kev loj hlob ntawm cov kab nrib pleb thiab txhim kho qhov tawg tsis kam ntawm pob zeb.
Cov cuab yeej cuab tam ntawm pob zeb yog lub hauv paus rau kev siv cov pob zeb hauv cov tsev thiab cov qauv. Kev sib koom ua ke ntawm fibers thiab kev txhim kho cov khoom siv kho tshuab yog cov cim tseem ceeb rau kev ntsuam xyuas fiber ntau. Qhov tam sim no cuam tshuam rau txoj kev xav ntawm fiber ntau reinforcement mechanisms.
Qhov deb tshaj plaws yog: txoj kev xav ntawm fiber ntau tau npaj los ntawm RomualDi hauv Tebchaws Meskas thiab cov khoom siv sib xyaw ua ke tau npaj los ntawm Swamy hauv tebchaws United Kingdom. Los ntawm qhov pom ntawm pob txha mechanics, nws ntseeg tias thaum qhov sib nrug ntawm fibers hauv pob zeb yog tsawg dua li ib qho nqi, cov fiber ntau ua raws li kev tawg-thaiv cov nyhuv ntawm cov kab nrib pleb hauv cov pob zeb, txo qhov qub tsis xws luag hauv cov pob zeb thiab txhim kho nws lub zog tensile. Cov khoom siv sib xyaw ua ke suav nrog cov fiber ntau raws li kev txhawb zog ntawm cov pob zeb. Los ntawm kev sib xyaw ntawm cov khoom sib xyaw, qhov kev ua tau zoo ntawm cov khoom siv fiber ntau yog tsis tsuas yog cov nyhuv ntawm cov theem sib xyaw “1+1=2”. Nws yog qhov hnyav ntawm cov khoom matrix thiab cov khoom fiber ntau. Lwm cov kev xav uas cuam tshuam tuaj yeem pom raws li ob txoj kev xav no, tom qab ua tiav, zoo tag nrho, thiab nthuav.
Ua ke nrog cov kev tshawb xav hauv paus thiab cov kev tshawb fawb muaj feem xyuam, Nws tuaj yeem pom tias fiber ntau ntxiv rau cov pob zeb feem ntau hauv peb yam:
(1) Raws li ib feem ntawm cov composite, lub fiber yog co-stressed nrog lub pob zeb matrix thiab dais ib feem ntawm kev ntxhov siab. (2) Qhov kev tsis sib haum ntawm peb sab ntawm cov fibers yog muab faib rau hauv cov pob zeb, uas zoo suppresses thiab txo cov tiam thiab kev loj hlob ntawm thawj kab nrib pleb nyob rau hauv cov cement matrix, thiab rau qee qhov them nyiaj rau qhov tsis xws luag hauv cov pob zeb.
(3) Thaum lub pob zeb deformed los ntawm kev quab yuam, fiber ntau tuaj yeem tswj nws qhov deformation, thiab cov yas ntawm cov pob zeb tuaj yeem txhim kho.
Thaum qhov tawg yog generated thiab nthuav, vim o “tus choj” cuam tshuam ntawm fiber, fiber nws tus kheej tuaj yeem raug yuam hla qhov tawg, thiab kev sib txhuam ntawm fiber ntau thiab substrate siv zog, yog li qhov ductility ntawm cov khoom yog nce.
Cie-China.org yog tus thawj coj Polyvinyl cawv (PVA) tus kws kho mob thiab tsim cov pob zeb ua npuas dej, superplasticizer,ua npuas ncauj qhob zog enhancer rau lub teeb yuag pob zeb, CLC blocks. Yog koj tab tom nrhiav Polyvinyl cawv (PVA), thov koj txhob xav li cas tiv tauj peb.