The effect of coarse aggregate on fresh and hardened properties of self-compacting concrete (SCC)

Khaleel, O.R. and Al-Mishhadani, S.A. and Abdul Razak, H. (2011) The effect of coarse aggregate on fresh and hardened properties of self-compacting concrete (SCC). In: 12th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC12, 2011, Hong Kong.

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Abstract

Self Compacting Concrete (SCC) is new type of concrete that posse's property of high flow ability, passing ability and stability. To achieve SCC, many factors must be investigated. Coarse aggregate is one of these factors that have a significant influence on SCC. This paper presents the coarse aggregate properties such as maximum size, texture and type of coarse aggregate that have a direct effect on achieving SCC. Three types of coarse aggregate are used, namely crush gravel, uncrushed gravel and crush limestone. To determine the workability, different test methods are adopted such as slump flow, V-funnel, L-box and U-box test. It was found that by increasing the maximum size of coarse aggregate, flowability and passing ability reduced. In addition it was observed that when uncrushed gravel was used in the concrete mixture, flow ability, passing ability and segregation resistance increased as compared to concrete with crushed gravel. Furthermore, the inclusion of 10 HRM as a partial replacement by weight of cement leads to reduce flow ability and increase viscosity. The compressive and flexural strengths and modulus of elasticity was measured. It was noticed that concrete mixes prepared with crushed limestone showed higher strengths and modulus of elasticity than concrete mixes prepared with crushed and uncrushed gravel. In addition, lower maximum size of coarse aggregate leads to higher strengths compared to higher maximum size of coarse aggregate in SCC mixes.

Item Type:	Conference or Workshop Item (Paper)
Funders:	UNSPECIFIED
Additional Information:	Conference code: 86909 Cited By (since 1996):2 Export Date: 16 December 2013 Source: Scopus doi: 10.1016/j.proeng.2011.07.102 Language of Original Document: English Correspondence Address: Khaleel, O.R.; Department of Civil Engineering, Faculty of Engineering, University of MalayaMalaysia; email: omar.engineer.ct@gmail.com References: Ahmed, S., High performance concrete (1994) A State-of-Art Report, pp. 1-9; Alexander, C., Prosk, T., (2003) Self-Compacting Concrete-Influence of the Coarse Aggregate on the Fresh Concrete Properties, pp. 1-4. , http://www.darmstadt-concrete.de; Al-Jabri, L.A., (2005) The Influences of Mineral Admixtures and Steel Fibers on the Fresh and Hardened Properties of SCC, p. 135. , M.Sc. Thesis, Al-Mustansiriya University; Aulia, T.B., Deutschmann, K., (1999) Effect of Mechancal Properties of Aggregate on the Ductility of High Performance Concrete, , Leipzig University, LACER No.4; Druta, C., (2003) Tensile Strength and Bonding Characteristics of Self-Compacting Concrete, 125p. , M.Sc. Thesis, Louisiana State University; (2002) Specification and Guidelines for Self-Compacting Concrete, p. 32. , www.efnarce.org; Hadhrati, H.F., (2006) Mechanical Properties of Self-Compacting High Performance Structural Lightweight Aggregate Concrete, pp. 60-65. , MSc. Thesis, University of Technology; Hwang, S., Kayat, K., Banneau, O., Performance-based specifications of self-consolidating concrete used in structural applications (2006) ACI Material Journal, Title no.103-m14, p. 122; Janssen, D., Kuosa, H., (2001) Self-Compacting Concrete: Theory to Practice, pp. 21-24. , Report No.4; Justice, J.M., (2005) Evaluation of Metakaolin for Use As Supplementary Cementitious Materials, p. 134. , M.Sc. Thesis, Georgia Institute of Technology; M. Collepardi, A very close precursor of self-compacting concrete (2001) Symbosium on Sustainable Development and Concrete Technology, Proceeding of the Giornate AICAP, , Ravenna (Italy); Martys, N., Ferraris, C., (2003) Simulation of SCC Flow, pp. 27-30. , Building and Fire Research Laboratory National Institute of Standard, Chicago; Neuwald, A., Self-consolidating concrete (2004) MC Magazine, pp. 2-4; Ozawa, K., Okamura, H., Maekawa, K., Development of high performance concrete (1992) Factulty of Engineering Journal, 156p. , University of Tokyo; Petersson, O., Preliminary mix design (1997) Final Report of Task 1, Sweedish Cement and Concrete, pp. 15-19. , Research Institute; Raheem, J.O., (2005) The Influence of Volume Ratio and Size of Coarse Aggregate on the Properties of Self-compacting Concrete, , MSc. Thesis, Department of Civil Engineering, College of Engineering, Al-Mustansiriya University, (December); Tviksta, L.G., Guideline for SCC (2000) Brite EuRam, Task 9 End Product, pp. 3-11
Uncontrolled Keywords:	Gravel aggregate, Limestone aggregate, Maximum size, Self Compacting Concrete properties, Texture, Coarse aggregates, Compressive and flexural strengths, Concrete mix, Concrete mixture, Crushed limestone, Flow ability, Fresh and hardened properties, High flow, Maximum size of coarse aggregate, Partial replacement, Passing ability, Self compacting concrete, Slump flow, Test method, Concrete mixers, Elastic moduli, Gravel, Limestone, Structural design, Textures, Aggregates
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Engineering
Depositing User:	Mr Jenal S
Date Deposited:	27 Jan 2014 02:16
Last Modified:	27 Jan 2014 02:16
URI:	http://eprints.um.edu.my/id/eprint/9064

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