(276) /2732 (312)

Transkript

1 Donma- (276) /2732 (312) ÖZ hafif beton (KYHB) bilirlikleri ile donma- (KYB) ve vibrasyonla (HB) bilirliklerinin a, V hunisi, L kutusu, V hunisi 5 dakika gec - sert -20 º Deney KYB bilirlik deneyleri sonucunda, n g/dm 3 iken, 3 B daha onma- deneyleri - n azal Anahtar Sözcükler:. 9. Ulusal Beton Kongresi 191

2 , 2004) len bir ki (Gonen, 2010). en (Bingl ve Gl, 2004; T. genellikle,, bilirlik. Donma- rlerden Suyla dolu olm le ak donma Ulusal Beton Kongresi

3 Malzemeler pomza ve Genle 4 ve 4 sadece 0- Tablo 1. Pomza Dere Perlit 4-16 mm 0-4 mm 4-16 mm 0-4 mm 0-4 mm 1,91 2,07 2,67 2,73 0,19 (kg/dm 3 ) Su emme (%) 8,3 17,7 2,0 2, ) , ,6 ) kulla Sivas Kangal t fiziksel ve kimyasal. S(SiO 2 ) ,34 A(Al 2 O 3 ) ,69 F(Fe 2 O 3 ) ,11 C(CaO) ,62 MgO ,60 SO ,44 Na 2 O - - K 2 O - - Cl ,79 3 ) ,3 2 /g (cm 2 /g) ve yo 1.07 kg/l 9. Ulusal Beton Kongresi 193

4 , oranlarda perlit agre hacimce 310 litre/m º Tablo 3. Rumuz Toplam Perlit Pomza (kg/m 3 ) Dere PÇ UK toz 0-4 (kg/m 3 ) (kg/m 3 (%) (%) ) (%) KYHB KYHB KYHB beton KYBH KYB KYB HB Hafif beton Taze beton deneyleri bilirlikleri (2002 ve 2005) 3. Tablo 4belirtilen taze Tablo Ulusal Beton Kongresi

5 2002) 8- (2002). Bu deneyde (EFNARC 2005). Tablo 4. Deney metodu Viskozite L kutusu deneyi (mm/mm) 0-3sn direnci (+sn) direnci Elek testi (%) 9. Ulusal Beton Kongresi 195

6 Donma-çözülme deneyleri ASTM C (1992) göre donma- A 0-20 o C ve donma 0 º (Neville, 1987). TS 3449 (1980) iki metot tarif edilmektedir. Bunlar havada donma--çözülmedir. -çözülme kaps-20 º tur. Her bir den ibarett (Jansen, 2002; Pol - (Neville, 1987). belirlen1) no. V 6 (h / t) 10 (1) dalga -çözülme deneylerinde hasar gören ve görmeyen Burada; E d dinamik elastisite 3 Poisson 2 V n(1 )(1 2) E d (2) (1 ) - -çözülme -çözül Ulusal Beton Kongresi

7 - e tabi tutulmayan bilirlik bilirlik Tablo 5 Tablo 4 (2002) EFNARC (2005) skosite - syon direncinde azalma direnci iyi KYB1 ve KYB yay 9. Ulusal Beton Kongresi 197

8 tedir. Tablo 5 birim a. Taze V V Elek kurusu Beton Slump L kutusu beton hunisi hunisi tipi (mm) (mm/mm) 5 dk (s) (%) (gr/dm 3 (gr/dm 3 ) ) KYHB KYHB KYHB KYHB KYB KYB HB Donma- - Tablo 6 daha fazla etken b - etkilenmeyebilir. HB olan seridir. Donma- Tablo 6. Ultra ses Kontrol ED Ultra ses ED km/sn GPa MPa km/sn GPa MPa KYHB 3, KYHB10 3, KYHB20 3, KYHB30 3, HB 3, KYB1 4, KYB2 4, donma- Agrega tipinin donma Ulusal Beton Kongresi

9 % Sonuçlar ve Öneriler Bu durumda betonda 34 MPa iken KYB de ise 33 MPa Donma onma- Kaynaklar ASTM C , 1992, Standart Test method for Freezing and Thawing Resistance., R. (2004) Compressive strength of lightweight aggregate concrete exposed to high temperatures. Indian Journal of Engineering and Materials Sciences. Vol. 11, pp Ulusal Beton Kongresi 199

10 Choi Y.W. Kim Y.J. Shin H.C. Moon H.Y. (2006) An experimental research on the fluidity and mechanical properties of high-strength lightweight self-compacting concrete. Cement Concrete Research Vol. 36, No. 9, pp (2004), Vol. 1, pp EFNARC (2005) Specifications and Guidelines for Self-Compacting Concrete, The European Federation of Specialist Construction Chemicals and Concrete Systems. EFNARC (2002) Specifications and Guidelines for Self-Compacting Concrete Federation of Specialist Construction Chemicals and Concrete Systems. Beton, Metu Pres, Ankara. Gönen T. ve Yazcolu, S. (2010) Vol. 25, No. 3, pp Effect of surface treatment methods on the properties of self-compacting concrete with recycled aggregates Construction and Building Materials. Vol. 64 No 14, pp Hale W.M. Freyne S.F. and Russell B.W. (2009) Examining the frost resistance of high performance concrete, Construction and Building Materials Vol. 23, pp Hwang C.L, Hung M.F. (2005) Durability design and performance of self-consolidating lightweight concrete. Construction and Building Materials Vol. 19, No. 8, pp Jansen, D.J. (2002) Requirements for a test of frost resistance of concrete, Frost resistance of concrete, edited by Setzer, Auberg and Keck, RILEM Proceeding PRO24, Germany. Lo T.Y, Tang P.W.C. Cui H.Z. Nadeem A. (2007) Comparison of workability and mechanical properties of self-compacting lightweight concrete and normal self-compacting concrete. Mater Research Innovation. Vol. 11, No. 1, pp Neville, A.M. and Brooks, J.J. (1987) Concrete Technology. Addison Wesley Longman Ltd, Edinburgh Gate, Harlow, Essex CM20 2JE 290. weight aggregate on the physico-mechanical properties of concrete exposed to freeze thaw cycles Cold Regions Science and Technology Vol.60, pp Soleymani Ashtiani, M. Scott, A.N. Dhakal, R.P. (2013) Mechanical and fresh properties of high-strength self-compacting concrete containing class C fly ash, Construction and Building Materials. Vol. 47, pp Effect of aggregate type on properties of hardened selfconsolidating lightweight concrete (SCLC), Construction and Building Materials, Vol. 24 No. 7, pp TS 3449 (1980) Tayini Ulusal Beton Kongresi

11 conditions on the drying shrinkage of self-compacting concretes. Indian Journal of Engineering and Materials Sciences Vol. 13, pp Ulusal Beton Kongresi 201

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