STRENGTH, MODULUS OF ELASTICITY AND SHRINKAGE BEHAVIOUR OF POFA CONCRETE
DOI:
https://doi.org/10.11113/mjce.v21.15788Keywords:
Injection molding, Plastic, Process parameter optimization, Weldline, Palm oil fuel ash, pozzolans, concrete strength, modulus of elasticity, shrinkage.Abstract
An investigation was carried out to study strength, modulus of elasticity and shrinkage of concrete containing palm oil fuel ash (POFA). Following DoE mix design, OPC concrete was made to have a target mean strength of 50 MPa with 50 ± 5 mm slump. Having the same workability, POFA concrete was prepared where OPC was replaced, mass for mass, by 30% POFA. Laboratory test results based on short-term investigation revealed that the modulus of elasticity of POFA concrete in association with its compressive strength was slightly lower than that of OPC concrete. The measured values of shrinkage, however, demonstrated that the shrinkage strain of POFA concrete was higher than that of OPC concrete. On the basis of shortterm investigation, the one-year shrinkage values of both OPC and POFA concrete were also predicted by extrapolating the data obtained during this period.References
Abdul Awal, A.S.M. and Hussin, M.W. (1997) Some Aspects of Durability Performances of Concrete Incorporating Palm Oil Fuel Ash, Proceedings of the Fifth International Conference
on Structural Failure, Durability and Retrofitting, Singapore, 210-218.
Abdul Awal, A.S.M. (1998) A Study of Strength and Durability Performances of Concrete Containing Palm Oil Fuel Ash, Ph.D. Thesis, Faculty of Civil Engineering, Universiti Teknologi Malaysia.
American Concrete Institute (1994) Prediction of Creep, Shrinkage and Temperature: Effects in Concrete Structures, ACI Manual of Concrete Practice, Part 1: Materials and
General Properties of Concrete, ACI 209R-92.
American Society for Testing and Materials (1994) Standard Specification for Fly Ash and Raw or Calcined Natural Pozzolan for Use as a Mineral Admixture in Portland Cement Concrete,
Annual Book of ASTM Standards, ASTM C618-94a.
American Society for Testing and Materials (2002) Standard Test for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression, Annual Book of ASTM Standards, ASTM C 469-02.
British Standards Institution (1983) Method for Determination of Compressive Strength of Concrete Cubes, BS 1881: Part 116.
British Standards Institution (1983) Method for Determination of Tensile Splitting Strength, BS 1881: Part 117.
British Standards Institution (1983) Method for Making Test Cylinders from Fresh Concrete, BS 1881: Part 110.
British Standards Institution (1995) Testing Aggregates: Methods for Determination of Density, BS 812: Part 2.
British Standards Institution (1985) Structural Use of Concrete: Code of Practice for Special Circumstances, BS 8110: Part 2.
Brooks, J.J. and Neville, A.M. (1992) Creep and Shrinkage of Concrete as Affected by Admixtures and Cement Replacement Materials, Creep and Shrinkage of Concrete: Effect of
Materials and Environment, ACI Publication SP-135, 19-36.
Budiea, A. (2008) Study on Durability of High Strength Palm Oil Fuel Ash Concrete, M. Eng.
Thesis, Faculty of Civil Engineering, Universiti Teknologi Malaysia.
Department of the Environment (1997) Design of Normal Concrete Mixes, Building Research Establishments, U.K.
Malhotra, V.M., Carette, G.G. and Sivasundaram, V. (1994) Role of Silica Fume in Concrete: A Review, Advances in Concrete Technology, CANMET, Ottawa, 915-990.
Mehta, P.K. (1994) Rice Husk Ash – A Unique Supplementary Cementing Material, Advances in Concrete Technology, CANMET, Ottawa, 419-443.
Neville, A.M. and Brooks, J.J. (1987) Concrete Technology, Longman Group Ltd.
Neville, A.M. (1995) Properties of Concrete, Fourth Edition, Longman Group Ltd.
Salihuddin, R. S.(1993) Relationships between Engineering Properties and Microstructural Characteristics of Mortar Containing Agricultural Ash, Ph.D. Thesis, Faculty of Civil Engineering, Universiti Teknologi Malaysia.
Sata, V., Jaturapitakkul, C. and Kiattikomol, K. (2004) Utilisation of palm oil fuel ash in highstrength concrete, Journal of Materials in Civil Engineering, 16(6): 623-628.
Yuan, R.L. and Cook, J.E. (1983) Study on a Class C Fly Ash Concrete, ACI Publication SP-79, 1: 307-319.
