Compressive strength, Water Abortion and Length Change of Concrete Block Made from Alkali Activated Fly Ash

Authors

  • Akkadath Abdulmatin Department of Civil Engineering, Faculty of Engineering, Princess of Naradhiwas University,
  • Pokpong Rattanachu Department of Civil Engineering, Faculty of Engineering, Princess of Naradhiwas University,
  • Saofee Dueramae Department of Civil Engineering, Faculty of Engineering, Rajamangala University of Technology Krungthep,
  • Rattanasak Hongthong Department of Civil Engineering, Faculty of Engineering, Rajamangala University of Technology Krungthep,
  • Apai Benjapong Department of Civil Engineering, Faculty of Engineering, Rajamangala University of Technology Krungthep,

Keywords:

concrete block, alkali activated, fly ash, water absorption, length change

Abstract

This research aims to study the properties of concrete block made from alkali activated fly ash to use as cementitious material without Portland cement. Sodium hydroxide and sodium silicate solutions were used as an alkaline solution in the mixture of alkali activated fly ash. The compressive strength of concrete block was determined at 7, 14 and 28 days. The water absorption and change in length after immersed in water were also investigated at 28 days. The result found that the compressive strength of concrete block made from alkali activated as a cementitious material was increased with curing age. The using of sodium hydroxide combined with sodium silicate solution (FA-6M-NS concrete) was achieved the highest compressive strength, which could be developed compressive strength up to 249 kg/cm2 at 28 days. The test results of water absorption and length change when immersed in water of concrete block made from alkali activated fly ash were ranging from 9.4 - 10.5 % and 0.12 - 0.33 %, respectively. Moreover, the concrete block made from alkali activated fly ash had significantly less release CO2 emission than that of concrete using Portland cement as binder, which was eco-friendly material when compared with CO2 emission obtained from raw materials.

Author Biographies

Akkadath Abdulmatin, Department of Civil Engineering, Faculty of Engineering, Princess of Naradhiwas University,

Naradhiwas 96000, Thailand.

Pokpong Rattanachu, Department of Civil Engineering, Faculty of Engineering, Princess of Naradhiwas University,

Naradhiwas 96000, Thailand.

Saofee Dueramae, Department of Civil Engineering, Faculty of Engineering, Rajamangala University of Technology Krungthep,

Bangkok 10120, Thailand.

Rattanasak Hongthong, Department of Civil Engineering, Faculty of Engineering, Rajamangala University of Technology Krungthep,

Bangkok 10120, Thailand.

Apai Benjapong, Department of Civil Engineering, Faculty of Engineering, Rajamangala University of Technology Krungthep,

Bangkok 10120, Thailand.

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Published

2023-08-25

How to Cite

Abdulmatin, A. ., Rattanachu, P., Dueramae, S., Hongthong, R., & Benjapong, A. (2023). Compressive strength, Water Abortion and Length Change of Concrete Block Made from Alkali Activated Fly Ash. Recent Science and Technology, 15(2), 307–320. Retrieved from https://li01.tci-thaijo.org/index.php/rmutsvrj/article/view/252627

Issue

Vol. 15 No. 2 (2023): ๋May- August 2023

Section

Research Article

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