Influence of Original and Ground Fly Ash on Compressive Strength, Porosity and Chloride Resistance of Concrete
DOI: 10.14416/j.ind.tech.2020.12.001
Keywords:
Compressive strength; Corrosion; Chloride, Concrete; Porosity; Fly ashAbstract
This research presents a study of the compressive strength, porosity, resistance to chloride and corrosion of concrete containing fly ashes with different fineness. Ordinary Portland Cement Type I (CT) was partially replaced with original fly ash (FAO), ground medium fly ash (GFAM) and ground fine fly ash (GFAF) at the dosage levels of 20%, 30% and 40% by weight of cementitious materials. Water to binder ratio with a constant of 0.45 was used in this research. Superplasticizer (SP) was used to improve the workability of concrete. Test results found that the use of fine fly ash (GFAF) produced mixes of concrete with low porosity and good compressive strength. The resistance to chloride and corrosion of original fly ash (FAO) concrete increase in comparison with that of Ordinary Portland Cement Type I (CT).
References
[2] S. Rukzon and P. Chindaprasirt, Use of Ternary Blend of Portland Cement and Two Pozzolans to Improve Durability of High-Strength Concrete, KSCE Journal of Civil Engineering, 2014,18(6), 1745-1752.
[3] A. Sathonsaowapark, P. Chindaprasirt and K. Pimraksa, Workability and Strength of Lignite Bottom Ash Geopolymer Mortar, Journal of Harzadous Materials, 2009, 168, 44-50.
[4] P. Chindaprasirt, S. Rukzon and V. Sirivivatnanon, Resistance to Chloride Penetration of Blended Portland Cement Mortar Containing Palm Oil Fuel Ash, Rice Husk Ash and Fly Ash, Construction and Building Materials, 2008, 22(5), 932-938.
[5] S. Rukzon, P. Chindaprasirt and R. Mahacha, Effect of Grinding on Chemical and Physical Properties of Rice Husk Ash, International Journal of Minerals, Metallurgy and Materials, 2009, 16(2), 242-247.
[6] S. Rukzon and P. Chindaprasirt, Strength and Carbonation Model of Rice Husk Ash Cement Mortar with Different Fineness, Journal of Materials in Civil Engineering, 2010, 22(3), 253-259.
[7] S. Rukzon and P. Chindaprasirt, Development of Classified Fly Ash as a Pozzolanic Material, Journal of Applied Sciences, 2008, 8(6), 1097-1102.
[8] P. Chindaprasirt and W. Chalee, Effect of Sodium Hydroxide Concentration on Chloride Penetration and Steel Corrosion of Fly Ash-Based Geopolymer Concrete under Marine Site, Construction and Building Materials, 2014, 63, 303-310.
[9] A.M. Neville, Properties of Concrete, 4th and Final Ed., Longman Group Limited., Malaysia, 1995.
[10] ASTM C33, Standard Specification Concrete Aggregates, Annual Book of ASTM Standards 04.02, 2005, 10-20.
[11] ASTM C136, Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates, Annual Book of ASTM Standards 04.02, 2005, 88-92.
[12] ASTM C39, Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens, Annual Book of ASTM Standards 04.02, 2005, 21-27.
[13] ASTM C642, Standard Test Method for Density, Absorption, and Voids in Hardened Concrete, Annual Book of ASTM Standards 04.02, 2005, 338-340.
[14] ASTM C1202, Standard Test Method for Electrical Indication of Concrete’s Ability to Resist Chloride Ion Penetration, Annual Book of ASTM Standard 04.02, 2001, 646-651.
[15] S. Rukzon and P. Chindaprasirt, Utilization of Bagasse Ash in High-Strength Concrete, Materials and Design, 2012, 34, 45-50.
