NDLI: Effect of Porosity and Water Absorption on Compressive Strength of Fly Ash based Geopolymer and OPC Paste

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Effect of Porosity and Water Absorption on Compressive Strength of Fly Ash based Geopolymer and OPC Paste

Content Provider	Scilit
Author	Razak, Siti Aisyah Zainal, Farah Farhana Shamsudin, Shaiful Rizam
Copyright Year	2020
Description	Journal: Iop Conference Series: Materials Science and Engineering The fly ash based geopolymer is a promising binder by activation of fly ash with an alkaline activating solution. The fly ash based geopolymer prepared was characterized by several methods. The experimental result, studies effect of the porosity and water absorption on compressive strength of fly ash based geopolymer and Ordinary Portland Cement paste for comparison. The porosity studies were determined using the Brunauer, Emmett and Teller method included nitrogen adsorption / desorption plots. Then followed by water absorption and compressive strength tested at 7 and 28 days curing time. The result shows that the porosity of fly ash based geopolymer paste was in the lower surface area, pore volume and pore size compared to Ordinary Portland Cement paste. The small pore size of the fly ash based geopolymer had a significant proportion of a micropores whilst Ordinary Portland Cement paste pores were mostly mesopores. The highest compressive strength of fly ash-based geopolymer can be achieved up to 76.723 MPa at 28 days when less of pore size and water absorption. Therefore, the paste based on geopolymeric materials is a better durability and high resistance to aggressive environment compared Ordinary Portland Cement paste.
Related Links	https://iopscience.iop.org/article/10.1088/1757-899X/957/1/012035/pdf
ISSN	17578981
e-ISSN	1757899X
DOI	10.1088/1757-899x/957/1/012035
Journal	Iop Conference Series: Materials Science and Engineering
Issue Number	1
Volume Number	957
Language	English
Publisher	IOP Publishing
Publisher Date	2020-10-01
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Materials Science and Engineering Characterization and Testing of Materials Paper and Wood Ash Based Geopolymer Fly Ash Based
Content Type	Text
Resource Type	Article

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