Dab tsi yog qhov zoo ntawm fiber reinforced pob zeb?

Pob zeb yog ib qho tseem ceeb ntawm txhua qhov kev tsim kho, txawm tias koj tab tom tsim txoj kev, lub hauv paus ntawm ib qho chaw nyob, lossis ib lub chaw tsim hluav taws xob. Qhov no yog vim qhov ua vaj tse ruaj khov heev, tab sis nws tuaj yeem cuam tshuam los ntawm kev khov thiab thawing ntawm cov av hauv qab, ua rau nws hloov mus, lossis los ntawm cov cag ntoo loj hlob tuaj thiab thawb tawm tsam nws, uas tuaj yeem ua rau tawg. Qhov no tuaj yeem yog qhov teeb meem loj hauv kev tsim kho cov phiaj xwm vim tias cov kab nrib pleb tuaj yeem ua rau raug nqi kho thiab muaj kev puas tsuaj loj. Txoj kev daws teeb meem no yog los qhia txog cov pob zeb uas muaj zog.

Dab tsi yog qhov tseem ceeb ntawm kev ua vaj tse pob zeb?

Thaum cov pob zeb muaj cov fibers tsim nyog nyob rau hauv qhov sib tov kom nws toughness thiab ductility, nws yog suav tias yog ntxiv dag zog. Tsis zoo li cov pob zeb tsis muaj zog, uas tuaj yeem sib cais thaum nws tawg lossis tawg, fiber ntau cov pob zeb yuav tuav nws cov qauv kev ncaj ncees raws li cov fibers tuav cov kab nrib pleb ua ke.

Qhov zoo ntawm Fiber Reinforced Concrete

Lub zog tensile siab dua piv rau cov pob zeb tsis muaj zog.

Nce durability ntawm cov pob zeb.

Txo kev tawg tawg thiab muaj zog cuam tshuam.

Txhim kho kev tiv thaiv kom khov-thaw cycles.

Enhanced qaug zog.

Disadvantages ntawm Fiber Reinforced Concrete

Cov dej nag tuaj yeem nthuav tawm cov fibers.

Random orientation ntawm fibers nyob rau hauv pob zeb yuav ua rau tsis sib xws qhov cuab lub zog thiab tsis zoo.

Tus nqi ntawm fiber reinforced pob zeb yog 10% mus rau 15% siab dua li cov pob zeb uas tsis muaj zog.

Hom Fibers Siv nyob rau hauv Reinforced Concrete

Ob peb hom fibers yog siv rau hauv cov pob zeb uas muaj zog. Cov lus piav qhia ntawm ntau hom yog raws li hauv qab no:

1. Cellulose Fibers

Cov fibers no yog tsim los ntawm esters lossis ethers ntawm cellulose muab tau los ntawm cov nplooj ntoo, ntoo, tawv ntoo, lossis lwm yam khoom siv cog. Cov khoom siv ntawm cov fibers no tuaj yeem hloov kho los ntawm kev qhia qhov sib txawv ntawm lignin thiab hemicellulose. Cellulose fibers feem ntau yog siv los ntxiv dag zog hauv cov ntaub ntawv sib xyaw thiab ua cov tshuaj lim dej hauv kev lag luam textile.

2. Ntuj Fibers

Hom fiber ntau no muaj txiaj ntsig zoo thiab raug nqi. Nws raug pom zoo heev vim nws muaj nyob hauv zos thiab yooj yim ntawm kev yuav khoom. Ntuj fibers tuaj yeem tau txais los ntawm cov khoom siv ntxhia, tsiaj txhu, lossis zaub thiab ua tiav rau hauv cov ntaub tsis muaj ntaub. Kev siv cov fibers hauv kev tsim kho tsis yog ib qho kev txhim kho tshiab raws li cov plaub hau thiab cov quav cab tau siv los ua plaster thiab cib.

3. Cov pa roj carbon fibers

Cov fibers no yog tsim los ntawm carbon atoms nrog diameters li ntawm 5 mus rau 10 micrometers. Qhov zoo ntawm kev siv carbon fibers muaj xws li:

• Tsawg thermal expansion.
• Siab tshuaj tiv thaiv.
• Kub siab kam rau ua.
• Nyuaj, lub teeb yuag, thiab siab tensile lub zog.

4. Polyester Fibers

Polyester fibers yog nyiam rau warehouses, industrial floors, pavements, thiab precast khoom. Thaum sib xyaw nrog pob zeb, polyester macrofibers thiab microfibers tuaj yeem ua kom muaj kev ncaj ncees, tawv, thiab tiv thaiv cov yas shrinkage tawg.

5. Cov iav Fibers

Cov iav fibers qhia ntau yam ntxwv thiab cov khoom siv nrog lwm cov fibers xws li carbon fibers thiab polymer fibers. Thaum siv rau hauv cov khoom sib xyaw, cov iav fibers pom tsawg dua brittleness tab sis qis qis dua piv rau carbon fibers. Yog li ntawd, iav fibers yog siv los ua kev txhawb zog hauv ntau cov khoom siv polymer, piv txwv li fiberglass-reinforced plastics.

6. Polypropylene Fibers

Polypropylene (PP) fibers yog siv rau hauv pob zeb vim lawv tiv thaiv kom qhuav shrinkage thiab yas shrinkage. Cov fibers no pab txo cov ntshav hauv pob zeb thiab txo nws cov permeability. Polypropylene fibers yog hluavtaws, dawb, muaj zog cov ntaub ntawv nrog zoo insulating zog thiab siab tsis kam mus rau organic solvents, acids, thiab alkalis.

7. Hlau Fibers

Ntxiv qhov tsim nyog ntawm cov hlau fibers rau pob zeb tuaj yeem hloov kho nws lub cev zoo. Kev suav nrog cov hlau fibers hauv kev sib xyaw ua ke zoo heev txhim kho cov kav ntev, tawg tsis kam, flexural zog, thiab toughness ntawm pob zeb.