ISSN 0794-4756
 

Original Research 


EXPERIMENTAL INVESTIGATION USING DESIGN EXPERT SOFTWARE FOR LIGHT WEIGHT CONCRETE PRODUCTION WITH SAWDUST AS PARTIAL REPLACEMENT FOR FINE AGGREGATE

Akaolisa Celestine Ezeagu , Onyebuchi Joseph Agbo Anike .

Abstract
This experimental study considered the use of sawdust as a partial replacement for sand as fine aggregate in the production of lightweight concrete. The sawdust specimen was pre-treated before use by boiling and air drying. Design Expert software was used for the Design of Experiment (DOE) which gave rise to 13 mix proportions of sand and sawdust. These mixtures were used to produce 104 concrete cubes of 150mm x 150mm x 150mm for testing in the laboratory. Two sets of samples were made by both batching by volume and weight. Slump test was carried out on fresh concrete while compressive strength, water absorption and comparative weight loss were tested at 7 and 28 days of curing. Results showed that increased sawdust proportions resulted in decreased workability and compressive strength, but resulted in increased water absorption and weight loss. These results were analyzed to give final model equations. Optimized solutions for design mixes were obtained for both weight and volume batching giving; 8.49% replacement with 1.97% weight loss for volume batching and 2.38% replacement with 3.49% weight loss for weight batching as optimum proportions of sawdust.

Key words: Lightweight, Concrete, Sawdust, Compressive strength, Design Expert


 
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Pubmed Style

ACE, OJAA, . EXPERIMENTAL INVESTIGATION USING DESIGN EXPERT SOFTWARE FOR LIGHT WEIGHT CONCRETE PRODUCTION WITH SAWDUST AS PARTIAL REPLACEMENT FOR FINE AGGREGATE. NJE. 2020; 27(2): 9-16.


Web Style

ACE, OJAA, . EXPERIMENTAL INVESTIGATION USING DESIGN EXPERT SOFTWARE FOR LIGHT WEIGHT CONCRETE PRODUCTION WITH SAWDUST AS PARTIAL REPLACEMENT FOR FINE AGGREGATE. http://www.njeabu.com.ng/?mno=81860 [Access: October 20, 2020].


AMA (American Medical Association) Style

ACE, OJAA, . EXPERIMENTAL INVESTIGATION USING DESIGN EXPERT SOFTWARE FOR LIGHT WEIGHT CONCRETE PRODUCTION WITH SAWDUST AS PARTIAL REPLACEMENT FOR FINE AGGREGATE. NJE. 2020; 27(2): 9-16.



Vancouver/ICMJE Style

ACE, OJAA, . EXPERIMENTAL INVESTIGATION USING DESIGN EXPERT SOFTWARE FOR LIGHT WEIGHT CONCRETE PRODUCTION WITH SAWDUST AS PARTIAL REPLACEMENT FOR FINE AGGREGATE. NJE. (2020), [cited October 20, 2020]; 27(2): 9-16.



Harvard Style

, A. C. E. ., , O. J. A. A. . & (2020) EXPERIMENTAL INVESTIGATION USING DESIGN EXPERT SOFTWARE FOR LIGHT WEIGHT CONCRETE PRODUCTION WITH SAWDUST AS PARTIAL REPLACEMENT FOR FINE AGGREGATE. NJE, 27 (2), 9-16.



Turabian Style

, Akaolisa Celestine Ezeagu , Onyebuchi Joseph Agbo Anike, and . 2020. EXPERIMENTAL INVESTIGATION USING DESIGN EXPERT SOFTWARE FOR LIGHT WEIGHT CONCRETE PRODUCTION WITH SAWDUST AS PARTIAL REPLACEMENT FOR FINE AGGREGATE. Nigerian Journal of Engineering, 27 (2), 9-16.



Chicago Style

, Akaolisa Celestine Ezeagu , Onyebuchi Joseph Agbo Anike, and . "EXPERIMENTAL INVESTIGATION USING DESIGN EXPERT SOFTWARE FOR LIGHT WEIGHT CONCRETE PRODUCTION WITH SAWDUST AS PARTIAL REPLACEMENT FOR FINE AGGREGATE." Nigerian Journal of Engineering 27 (2020), 9-16.



MLA (The Modern Language Association) Style

, Akaolisa Celestine Ezeagu , Onyebuchi Joseph Agbo Anike, and . "EXPERIMENTAL INVESTIGATION USING DESIGN EXPERT SOFTWARE FOR LIGHT WEIGHT CONCRETE PRODUCTION WITH SAWDUST AS PARTIAL REPLACEMENT FOR FINE AGGREGATE." Nigerian Journal of Engineering 27.2 (2020), 9-16. Print.



APA (American Psychological Association) Style

, A. C. E. ., , O. J. A. A. . & (2020) EXPERIMENTAL INVESTIGATION USING DESIGN EXPERT SOFTWARE FOR LIGHT WEIGHT CONCRETE PRODUCTION WITH SAWDUST AS PARTIAL REPLACEMENT FOR FINE AGGREGATE. Nigerian Journal of Engineering, 27 (2), 9-16.