Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/16432
標題: Effect of Coarse Aggregate Content and Pozzolan Content on MechanicalProperties of Concrete
粗骨材含量與卜作嵐含量對混凝土力學行為之影響
作者: 黃勁翔
Huang, Jing-Shiang
關鍵字: Coarse Aggregate Content;粗骨材含量;Pozzolan Content;卜作嵐含量
出版社: 土木工程學系所
引用: 1. ACI211, “Standard Practice for Selecting Proportions for Normal, Heavy-Weight, and Mass Concrete, ” ACI 211.1 Report, ACI Manual of Concrete Practice, Part 1, 1997. 2. Zhong, C.; Wang, A., and Tang, M.,“The Filling Role of PozzolanicMaterial”, Cement and Concrete Concrete Reserch, Vol. 26, No. 6,1996, pp. 943-947. 3. Aitcin, P. C., and Neville, A., “High Performance ConcreteDemystified”, ACI Concrete International, V. 15, No. 1, 1993, pp.21~26. 4. Aitcin , P. C., and Mehta, P. K., “Effect of Coarse-AggregateCharacteristic on Mechanical Properties of High-Strength Concrete”,ACI Materials Journal, V. 87, No. 2. March-April 1990, pp. 103-107. 5. Fuller, W. B., and Thompson, J. E., “The laws of Proportioning Concrete”, Transactions of the American Society of Civil Engineers, Paper No. 1053, pp. 67-143. 6. Carrasquillo, R. L.; Nilson, A. H., and Slate, F. O., “Properties of High Strength Concrete Subject to Short-Term Loads”, ACI Journal Proceedings, V. 78, No. 3, May-June 1981, pp. 171-178. 7. Carrasquillo, R. L.; Slate, F. O., and Nilson, A. H.,“Microcracking and Behavior of High Strength Concrete Subject to Short-Term Loading”, ACI Journal Proceedings, V. 78, No. 3 May-June 1981, pp. 179-186. 8. Braalbaki, W.; Benmokrane, B.; Chaallal, O., and Aitcin, P. C., “Influence of Coarse Aggregate on Elastic Properties of High- Performance Concrete,” ACI Materials Journal, V. 88, No. 5.Sep.-Oct. 1991, pp. 499-503. 9. Baalbaki, W.; Aitcin, P. C., and Ballivy, G., “On Predicting Modulus of Elasticity in High-Strength Concrete”, ACI MaterialJournal, V. 89, No. 5, Sep.-Oct. 1992. pp. 517-520. 10. ACI 318, “Building Code Requirements for for Structural Concrete(ACI 318-08)and Commentary(ACI 318-08)”, American Concrete Institute, 2008, pp.107. 11. “CEB-FIP Model Code 90”, CEB-FIP, 1993, pp.34-40. 12. Mansur, M. A.; Wee, T. H., and Chin, M. S., “Derivation of the Complete Strain-Stress Curves for Concrete in Compression”, Magazine of Concrete Research, V. 49, No.173, 1995, pp.289-290. 13. Almusallam, T. H., and Alsayed, S. H.,“Stress-Strain Relationship of Normal, High-Strength and Lightweight Concrete”, Magazine ofConcrete Research, V.47, No. 170, March 1995, pp. 39-44. 14. Iravani, S.,“Mechanical Properties of High-Performance Concrete”,ACI Material Journal, V. 93, No. 5, Sep.-Oct. 1996, pp. 416-426. 15. Wu, K. U.; Chen, B.; Yao, W., and Zhang, D.,“Effect of Coarse Aggregate Type on Mechanical Properties of High-Performance Concrete”, Cement and Concrete Research, V. 31, 2001, pp. 1421-1425. 16. 陸景文、詹穎雯、陳振川,“台灣地區混凝土抗壓強度與彈性模數特性研究”,中國土木水利工程學刊,第十四卷,第三期,民國91年,pp. 371-379。 17. 潘昞熹,“粗骨材含量對混凝土力學性質之影響”碩士論文,國立中興大學土木工程研究所,民國98年7月。 18. 林士平,“不同流動性混凝土之圍束行為” 博士論文,國立中興大學土木工程研究所,民國94年7月。 19. 詹簦瑋,“高流動性混凝土力學性質之探討” 碩士論文,國立中興大學土木工程研究所,民國97年。 20. ASTM,C 496,“Standard Test Method for Static Modulus ofElasticity and poisson Ratio of Concrete in Compression ”,American Society for Testing and Materials, 1994. 21. ASTM,C 496,“Splitting Tensile Strength of Cylindrical Concrete Specimens ” , American Society for Testing and Materials , 1994. 22. Zain, M. F. M.; Mahmud, H.B.; Ilham, A., and Faizal, M.,“Prediction of Splitting Tensile Strength of High-PerformanceConcrete”, Cement and Concrete Research, V. 32, 2002, pp. 1251- 1258. 23. Kent, D. C., and Park, R., “Flexural Members with Confined”, Journal of the Structural Division, V. 97, ST7, July 1971, pp. 1969-1990. 24. 黃兆龍,“混凝土性質與行為” 詹氏書局,民國86年,pp.1132
摘要: 
This study contains three parts. The first part is to investigate the effect of coarse aggregate content on mechanical properties of concrete. The parameters include the concrete strength (30 MPa and 50 MPa) and content of coarse aggregate (1050 kg/m3, 950 kg/m3, 850 kg/m3, and 750 kg/m3). The second part is to investigate the effect of replacement ratio of cement by slag on mechanical properties of concrete. The parameters include the concrete strength (30 MPa and 50 MPa) and replacement ratio (5%, 10%, 15%, and 20%). The third part is to investigate the effect of replacement ratio of sand by fly ash on mechanical properties of concrete. The parameters include the concrete strength (30 MPa and 50 MPa) and replacement ratio (5%, 10%, 15%, and 20%). Compressive strength, stress-strain curves, modulus of elasticity, Possion's ratio, and splittingtensile strength were investigated in this study. The results show that:
1. Increase of compressive strength, decrease of coarse aggregate content, increase the replacement ratio of cement by slag, and increase the replacement ratio of sand by fly ash will reduce the ductility of the concrete.
2. The moduli of elasticity of the concretes are close to those predicted by ACI 318 equations in low strength concretes, while the differences in high strength concretes are significant.
3. The splitting tensile strength of concrete increases as the coarse aggregate content increases in low strength concrete, while it decreases as the coarse aggregate content increases in high strength concrete. The replacement ratios of slag and fly ash do not have apparent influence on splitting tensile strength.

本研究主要分為三部分,第一部分探討混凝土在不同粗骨材含量時力學行為之影響,共製作兩種強度30 MPa及50 MPa,四種粗骨材含量750 kg/m3、850 kg/m3、950 kg/m3、1050 kg/m3。第二部分探討混凝土中爐石取代水泥取代率不同時力學行為之影響,粗骨材量固定為950 kg/m3,兩種混凝土強度30 MPa及50 MPa,取代率為5%、10%、15%、20%。第三部分探討混凝土中飛灰取代砂取代率不同時力學行為之影響,粗骨材量固定為950 kg/m3,兩種混凝土強度30 MPa及50 MPa,取代率為5%、10%、15%、20%。上述三部份個別灌製混凝土圓柱試體 150 mm × 300 mm,其試驗之項目為應力-應變、彈性模數、劈裂強度和柏松比。試驗結果如下:

1. 混凝土強度愈高、粗骨材含量愈少、爐石取代率愈多和飛灰取代率愈多則應力-應變曲線下降段延展性愈差。

2. 本研究中混凝土彈性模數與ACI318-08預測式之比值,在低強度較為相近,高強度之彈性模數差異則較大。

3. 混凝土劈裂強度在低強度時與粗骨材含量成正比,在高強度時與粗骨材含量成反比;與爐石和飛灰取代率無明顯關係。
URI: http://hdl.handle.net/11455/16432
其他識別: U0005-1508201115023600
Appears in Collections:土木工程學系所

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