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Kuvars ve metakaolen katkısının jeopolimerlerin özellikleri üzerine etkisi

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UluslaraUDVÕ0KHQGLVOLN$UDúWÕUPDYH

*HOLúWLUPH'HUJLVL

International Journal of Engineering Research and Development

ŝůƚͬsŽůƵŵĞ͗ϵ^ĂLJŦͬ/ƐƐƵĞ͗Ϯ Haziran/June ϮϬϭϳ ŚƚƚƉƐ͗ͬͬĚŽŝ͘ŽƌŐͬϭϬ͘ϮϵϭϯϳͬƵŵĂŐĚ͘ϯϱϭϰϲϵ ƌĂƔƚŦƌŵĂDĂŬĂůĞƐŝͬZĞƐĞĂƌĐŚƌƚŝĐůĞ .

* tunaaydin@kku.edu.tr

Kuvars ve Metakaolen KatkÕVÕQÕQ-HRSROLPHUOHULQgzellikleri Üzerine Etkisi

The Effect of Quartz and Metakaolen Addition on the Properties of Geopolymers

Tuna AYDIN1

1.ÕUÕNNDOHhQLYHUVLWHVL0HWDOXUMLYH0DO]HPH0KHQGLVOL÷L%|OP<DKúLKDQKIRIKKALE

%DúYXUXReceived: 08/03/2017 Kabul/Accepted: 20/05/2017 Son Versiyon/Final Version: 15/06/2017

Öz

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RODUDNVRG\XPVLOLNDWVROV\RQX 66 YHVRG\XPKLGURNVLW 1D2+ NXOODQÕOPÕúWÕU+D]ÕUODQDQKDUoOar, 280 mm x 70 mm x 70 mm’lik oHOLNNDOÕSODUGDYHYLEUDV\RQ\|QWHPL\OHúHNLOOHQGLULOPLúWLU$UGÕQGDQQXPXQHOHUVDDWVUHLOHž&¶GHODERUDWXYDUWLSLetüvde WHUPDORODUDNNUOHQPLúWLU6RQXoRODUDNVWDQGDUWEQ\H\HNÕ\DVODNXYDUVYHPHWDNDROHQLoHUHQQXPXQHOHUGH\R÷XQOXNODUGDDUWÕú

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Anahtar Kelimeler

“Kuvars, Metakaolen, MHRSROLPHUL]DV\RQPLNUR\DSÕ´

Abstract

In this study, it was investigated that the effect of quartz and metakaolinite on microstructural properties of geopolymer materials.

Fly ash (Soma Thermal power plant, Manisa), sodium silicate (SS) and sodium hydroxide were used for the production of samples.

The prepared mortars were formed by vibration method in steel molds of 280 mm x 70 mm x 70 mm. After that, the samples were thermally cured at 75 ° C for 24 hours. As a result, there was an increase in the density of the samples containing quartz and metakaolinite compared to the standard sample. Accordingly, a decrease in total porosity values was determined. The bending and compression strength values also increased compared to the standard sample.

Key Words

“Quartz, metakaolinite, geopolymerization, microstructure”

(2)

42 1. *ø5øù

Uçucu kül ve metakaolen gibi inorganik malzemelerin sodyum silikat (Na2SiO3), sodyum hidroksit (NaOH) ve potasyum KLGURNVLW .2+  o|]HOWLOHULQLQ NDUÕúÕPÕQGDQ HOGH HGLOHQ PDO]HPHOHUH MHRSROLPHU GHQLU <NVHN RUDQGD VLOLND 6L22), alumina(Al2O3 YHNDOVL\XPRNVLW &D2 LoHUHQXoXFXNOWHUPLNVDQWUDOOHUGHNLN|PUQ\DQPDVÕVRQXFXEDFDDWÕ÷ÕRODUDNHOGH

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2. MATERYAL VE YÖNTEM

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termal olarak kürlenmiúWLU(OGHHGLOHQQXPHQHOHULQIL]LNVHOYHPLNUR\DSÕVDO|]HOOLNOHULLQFHOHQPLúWLU1XPXQHOHULQH÷PHYHEDVPD

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2.1. Hammadde kimyasal analizleri ve fiziksel özellikler

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8oXFXNOIL]LNVHO|]HOOLNOHUL7DEORGHYHULOPLúWLU7DEORLQFHOHQGL÷LQGH6RPDWHUPLNVDQWUDOLQGHQWemin edilen uçucu külün yüksek oranda CaO, Al2O3ve SiO2LoHUGL÷LWHVSLWHGLOPLúWLU.DROLQ$ùILUPDVÕQGDQWHPLQHGLOHQ0HWDNDROHQKDPPDGGHVLQLQGH

yüksek oranda Al2O3ve SiO2LoHUGL÷LWHVSLWHGLOPLúWLU.XYDUVÕQ\NVHNRUDQGDVDIOÕ÷ÕVDKLSROGX÷XJ|UOPHktedir.

Tablo 1. Hammadde kimyasal analizleri

Al2O3 SiO2 Na2O K2O Fe2O3 CaO TiO2 LOl SO3 MgO P2O5 Others

Uçucu Kül 22.8 34.9 0.39 1.2 5.34 27.3 0.64 3.0 3.4 1.75 0.1 -

Metakaolen 40.23 56.17 0.24 0.51 0.85 0.19 0.55 1.1 - 0.16 2.9

Kuvars 0.73 97.6 0.01 - 0.18 0.10 0.03 0.4 - -

(3)

43

Tablo 2. Physical Properties of fly ash Tane boyutu (d50)

(μm) <R÷XQOXN

(g/cm3) Spesifik

\]H\DODQÕ

(m2/g)

pH

Uçucu Kül 70 2.04 0.200 11.9

Sodyum silikat 1.42 12.5

2.2. Teknolojik özellikler

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|]HOOLNOHULQFHOHQGL÷LQGHDUWDQRUDQODUGDNXYDULODYHVLLOHQXPXQHOHULQ\Õ÷Õ\R÷XQOXNODUÕDUWPÕúWÕU<Õ÷ÕQ\R÷XQOXNODUÕQÕQDUWPDVÕ

sonucXQGDGDVXHPPHGH÷HUOHULD]DOPÕúWÕU%XGXUPDSDUDOHORODUDNWDWRSODPSRUR]LWHGH÷HUOHULGHD]DOPÕúWÕU.XYDUVLODYHVLLOH

EHUDEHUH÷PHYHEDVPDPXNDYHPHWOHULVWDQGDUWEQ\H\HNÕ\DVODDUWPÕúWÕU<DQOÕ]'QXPXQHVLQLQH÷PHYHEDVPDPXNDYHPHW

GH÷HUOHULVWDQGDUWEQ\HGHQ\NVHNROPDVÕQDUD÷PHQ'YH'QXPXQHVLQHNÕ\DVODGúPúWU%XGXUXP\NVHNRUDQGDNXYDUV

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]HULQHROXPX]HWNL\DSWÕ÷ÕQÕGesteklemektedir.

Numune <Õ÷ÕQ

\R÷XQOX÷X (gr/cm3)

Su emme

(%)

(÷PH

GD\DQÕPÕ (Mpa)

Basma GD\DQÕPÕ

(Mpa)

.DSDOÕ

porozite (%)

$oÕN

porozite (%)

Toplam Porozite

(%)

STD 1.27 31.89 2.134 11.06 6.47 40.55 47.02

D1 1.37 24.57 3.430 15.54 3.49 33.76 37.25

D2 1.53 18.46 4.400 17.70 8.05 28.39 36.44

D3 1.62 17.20 2.686 14.86 9.47 27.97 37.45

2.3. 0LNUR\DSÕ|]HOOLNOHUL 2.3.1. XRD analizi

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MHRSROLPHUOHúPH UHDNVL\RQX QHWLFHVLQGH EWQ EQ\HOHUGH NXYDUV ID]ÕQÕQ \DQÕQGD  UHDNVL\RQODU VRQXFXQGD ROXúPXú KLGUDWH

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hidroksit) ile reaksiyona girerek polikRQGHQVDV\RQD X÷UDU ROXúDQ UQ WHNWRDOPLQRVLOLNDW IHOGLVSDWRLW  YH KLGURNVLVRGDOLWWLU

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sonucunda içindeki suyu hem kimyasal hem de IL]LNVHO\ROODUODYHUHUHN GHKLGUDWDV\RQGHKLGUDV\RQ ]HROLWND\DoODUÕQDEHQ]HU

WDQHFLN\DSÕVÕQDXODúDQDQFDN]HROLWNULVWDOOHULQGHQIDUNOÕRODUDNDPRUIoER\XWOXKHN]DJRQDOPROHNOHUED÷\DSÕGDRODQDOXmino silikat jeopolimerdir. Hidrosodalit ve polisDODWODUÕQROXúXPXQHWLFHVLQGHJ|UOHQDPRUI\DSÕùHNLOGH67'YH'QXPXQHVLQGH

QHWELUúHNLOGHWHVSLWHGLOPLúWLU

(4)

44

bĞŬŝů͘ϭ͘EƵŵƵŶĞůĞƌĞĂŝƚy-ŦƔŦŶůĂƌŦĚŝĨƌĂŬƐŝLJŽŶƉĂƚĞƌŶŝ͖Y͗ŬƵǀĂƌƐ͕͗ŚŝĚƌĂƚĞŬĂůƐŝLJƵŵƐŝůŝŬĂƚ͕/͗ŚŝĚƌŽŬƐŝůƵŵŝŶLJƵŵ ƐŝůŝŬĂƚ͕͗ŵŽƌĨĨĂnj

2.3.2. SEM-EDX analizi

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üç boyutlu molekül dizilimlerinin hidrotermal polikondensasyonu sonucunda içindeki suyu hem kimyasal hem de fiziksel yollarla YHUHUHN ROXúWXUGX÷X DPRUI $  o ER\XWOX KHN]DJRQDO PROHNOHU DOXPLQR VLOLNDW  MHRSROLPHU ED÷ \DSÕVÕ J|UOPHNWHGLU (';

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içermektedir.

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(5)

45

ùekil 3. STD numunesine ait EDX analizi sonucu

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gömülü olarak kuvars taneOHULYHD\UÕFDNXOODQÕODQXoXFXNOGHQ\NVHNRUDQGDJHOHQ&D2LQROXúWXUGX÷XKLGUDWHNDOVL\XPDOXPLQD

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ùHNLO'QXPXQHVLQHDLWPLNUR\DSÕJ|UQWV4NXYDUV&$6KLGUDWHNDOVL\XPDOXPLQDVLOLNDW

(6)

46

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homojen Si-$ODPRUIMHRSROLPHULNPDNULNV\DSÕLoHUVLQGHJ|PORODUDNNXYDUVWDQHOHULYHD\UÕFDNXOODQÕODQXoXFXNOGHQ\NVHN

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GHDQDMHRSROLPHUD÷\DSÕVÕQÕROXúWXUDQ6L22, Al2O3, CaO, MgO, Na2O, K2O ve Fe2O3 içermektedi

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(7)

47

ùekil 7. D2 numunesine ait EDX analizi sonucu

ùHNLOYHùHNLOGD'QXPXQHVLQHDLW6(0YH(';DQDOL]OHULLQFHOHQGL÷LQGH'YH'QXPXQHOHULQGHWHVSLWHGLOGL÷LJLEL

\R÷XQYHKRPRMHQ6L-Al amorf jeopolimerik PDNULNV\DSÕLoHUVLQGHJ|PORODUDNNXYDUVWDQHOHULYHD\UÕFDNXOODQÕODQXoXFXNO

GHQ\NVHNRUDQGDJHOHQ&D2LQROXúWXUGX÷XKLGUDWHNDOVL\XPDOXPLQDVLOLNDWID]ODUÕEXEQ\HGHGHWHVSLWHGLOPLúWLU(';DQDOizi sonucuna göre D3 bünyesi de ana jeopolimer D÷\DSÕVÕQÕROXúWXUDQ6L22, Al2O3, CaO, MgO, Na2O, K2O ve Fe2O3 içermektedir.

ùHkil 8. 'QXPXQHVLQHDLWPLNUR\DSÕJ|UQWV$MHRSROLPHULNDPRUI\DSÕ&$6KLGUDWHNDOVL\XPDOXPLQDVLOLNDW4

kuvars

(8)

48

ùHNLO. D3 numunesine ait EDX analizi sonucu

3. SONUÇLAR

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4. KAYNAKLAR

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Duxson, P, Provis, JL, Lukey, G.C., Van Deventer, J.S.J., (2007). The role of inorganic polymer technology in the development of

‘Green concrete, Cement Concrete Research, 37(12), 1590–1597

Jaarsveld, J.G.S., Deventer, J.S.J., (1999). Effect of the alkali metal activator on the properties of fly ash based geopolymers, Indian Engineering of Chemistry Research, Vol. 38, No.10 pp. 3932-3941

Koç, M., Zeybek, M.S., (2014). .DOVLWLODYHOLMHRSROLPHUPDO]HPHOHULVLQWHUOHPHQLQJ|]HQHNOLOL÷HHWNLOHUL&%h

Fen Bilimleri Dergisi, 10.1, 25– 31

Li, Z., Zhang, Y., Zhou, X., (2005). Short Fiber Reinforced Geopolymer Composites Manufactured by Extrusion, Journal of Materials in Civil Engineering,17,624-631,

Palomo, A, Grutzeck, M.W., Blanco, M.T., (1999). Alkali-activated fly ashes, a cement for the future, Cement and Concrete Research, 29:1323–1329,

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Swanepoel, J.C., Strydom, C.A., (2002). Utilisation of fly ash in a geopolymeric material, Applied Geochemistry,17, 1143-1148

7RSoXø%&DQED]0  $ONDOLDNWLYHHGLOPLú\NVHNIÕUÕQFUXIOXKDUoODrda donma çözülme, ESOGÜ Müh-Mim Fak. Dergisi, Cilt 21, No. 2, ss. 1-16

7RSoXø%7RSUDN8  $ONDOLOHUOH$NWLYH(GLOHQ8oXFX.OOH+DILI7X÷ODhUHWLOPHVL8OXVDO<DSÕ

Malzemesi Kongresi ve Sergisi, 12-.DVÕPøVWDQEXO7UNL\HVV 38-45.

Xu, H., Van Deventer, J.S.J., (2000). The geopolymerisation of alumino-silicate minerals, Int. J. Miner. Process.

59, 247–266

Yip, C. K., Provis, J. L., Lukey, G. C., Van Deventer, J.S.J., (2008). Carbonate mineral addition to metakaolin-based geopolymers, Cement & Concrete Composites 30, 979–985

Zhaohui, X., Yunping, X., (2001). Hardening mechanisms of an alkaline activated class F fly ash, Cement and Concrete Research, Vol. 31, pp. 1245-1249

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