Effect of Fermented Cassava Waste Water as Admixture on Some Physic-Mechanical Properties of Solid Sandcrete Blocks

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2019 by IJETT Journal
Volume-67 Issue-10
Year of Publication : 2019
Authors : Akpokodje O. I., Uguru. H 
  10.14445/22315381/IJETT-V67I10P235

MLA 

MLA Style: Akpokodje O. I., Uguru. H   "Demand Forecast Using Markov Chain" International Journal of Engineering Trends and Technology 67.10 (2019):199-205.

APA Style: Akpokodje O. I., Uguru. H,Demand Forecast Using Markov Chain International Journal of Engineering Trends and Technology, 67(10),199-205

Abstract
This study investigated the effect of cassava waste water on sandcrete blocks. For the purpose of this study, two groups of sandcrete blocks were produced with fine aggregates to cement ratio of 6:1. A water/cassava waste water to cement ratio (w/c) of 0.5 was adopted. The blocks were cured by sprinkling method using fresh tap water.Preliminary investigation of some of the physical characteristics (Sieve analysis, porosity, moisture content and specific gravity) of the fineaggregates was carried out. The tests results revealed that the fine aggregates met the Nigerian Industrial Standard (NIS); the silt content was 3%, porosity 41.5%, and specific gravity 2.62. In addition the compressive strength, thewater absorption rate and thedrying rate of the sandcrete blocks produced with fresh water and withfermented cassava waste water were determined at 7, 14, 21 and 28 days after moulding. Results obtained showed that cassava waste water significantly (p ≤0.05) affects the compressive strength, water absorption rate and drying rate of the blocks. Sandcrete blocks produced from cassava waste water had compressive strength of 3.38 N.mm2at 28 curing days; while the fresh water sandcrete blocks recorded compressive strength of 2.04 N/mm2at 28 curing days. The results further revealed that sandcrete blocks produced with cassava waste water had a lowerwater absorption rate (4.73%), when compared with result ofthe sandcrete blocks produced with fresh water (8.10%). These results showed that thesandcrete blocks produced with cassava waste water satisfied both NIS and BS requirement. In addition, the results obtainedsuggest that sandcrete block produced using cassava waste water is a durable building material, mostly in areas exposed to high moisture levels and temperature.

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Keywords
Cassava waste water, sandcrete blocks,physical characteristics, compressive strength, water absorption, drying rate