Studying the Utility of Using Reed and Sawdust as Waste Materials to Produce Cementitious Building Units

In this research, the possibility of using waste wooden materials (reed and sawdust) was studied to produce sustainable and thermal insulation lightweight building units , which has economic and environmental advantages. This study is intended to produce light weight building units with low thermal...

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Main Authors: Shakir Ahmed Salih, Prof. Dr., Aseel Mahmood Kzar, Engineer
Format: Article
Language:English
Published: University of Baghdad 2015-10-01
Series:Journal of Engineering
Subjects:
Online Access:http://joe.uobaghdad.edu.iq/index.php/main/article/view/336
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author Shakir Ahmed Salih, Prof. Dr.
Aseel Mahmood Kzar, Engineer
author_facet Shakir Ahmed Salih, Prof. Dr.
Aseel Mahmood Kzar, Engineer
author_sort Shakir Ahmed Salih, Prof. Dr.
collection DOAJ
description In this research, the possibility of using waste wooden materials (reed and sawdust) was studied to produce sustainable and thermal insulation lightweight building units , which has economic and environmental advantages. This study is intended to produce light weight building units with low thermal conductivity, so it can be used as partitions to improve the thermal insulation in buildings. Waste wooden materials were used as a partial replacement of natural sand, in different percentages (10, 20, 30, and 40) % . The mix proportions were (1:2.5) (cement: fine aggregate) with w/c of 0.4. The values of 28 days oven dry density ranged between (2060-1693) kg/m3.The thermal conductivity decreased from (0.745 to 0.222) W/m. K .The percentages of decrease in 28 days compressive strength were (30.8, 36.8, 50 and 56.4) % .The flexural strength increased at low replacement of reed and sawdust content, and then it decreases with the increase of reed and sawdust content. At the end of the work, building units were produced from selected mix (natural sand with 30 % reed and sawdust) (MS30) .Two types of brick units were produced; the first type without coating reed or sawdust and the second type was coated with bituminous emulsion. The coating with bituminous emulsion increased the compressive by about (20.3) % and the water absorption was reduced by about (30.4) %. Efflorescence was almost negligible for both types of bricks.
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spelling doaj.art-574bf84a64694f56b0b4014ff62324862023-09-02T19:05:26ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392015-10-012110Studying the Utility of Using Reed and Sawdust as Waste Materials to Produce Cementitious Building UnitsShakir Ahmed Salih, Prof. Dr.0Aseel Mahmood Kzar, Engineer1College of Engineering-University of BaghdadCollege of Engineering-University of BaghdadIn this research, the possibility of using waste wooden materials (reed and sawdust) was studied to produce sustainable and thermal insulation lightweight building units , which has economic and environmental advantages. This study is intended to produce light weight building units with low thermal conductivity, so it can be used as partitions to improve the thermal insulation in buildings. Waste wooden materials were used as a partial replacement of natural sand, in different percentages (10, 20, 30, and 40) % . The mix proportions were (1:2.5) (cement: fine aggregate) with w/c of 0.4. The values of 28 days oven dry density ranged between (2060-1693) kg/m3.The thermal conductivity decreased from (0.745 to 0.222) W/m. K .The percentages of decrease in 28 days compressive strength were (30.8, 36.8, 50 and 56.4) % .The flexural strength increased at low replacement of reed and sawdust content, and then it decreases with the increase of reed and sawdust content. At the end of the work, building units were produced from selected mix (natural sand with 30 % reed and sawdust) (MS30) .Two types of brick units were produced; the first type without coating reed or sawdust and the second type was coated with bituminous emulsion. The coating with bituminous emulsion increased the compressive by about (20.3) % and the water absorption was reduced by about (30.4) %. Efflorescence was almost negligible for both types of bricks.http://joe.uobaghdad.edu.iq/index.php/main/article/view/336reed, sawdust , thermal conductivity, cementitious building units
spellingShingle Shakir Ahmed Salih, Prof. Dr.
Aseel Mahmood Kzar, Engineer
Studying the Utility of Using Reed and Sawdust as Waste Materials to Produce Cementitious Building Units
Journal of Engineering
reed, sawdust , thermal conductivity, cementitious building units
title Studying the Utility of Using Reed and Sawdust as Waste Materials to Produce Cementitious Building Units
title_full Studying the Utility of Using Reed and Sawdust as Waste Materials to Produce Cementitious Building Units
title_fullStr Studying the Utility of Using Reed and Sawdust as Waste Materials to Produce Cementitious Building Units
title_full_unstemmed Studying the Utility of Using Reed and Sawdust as Waste Materials to Produce Cementitious Building Units
title_short Studying the Utility of Using Reed and Sawdust as Waste Materials to Produce Cementitious Building Units
title_sort studying the utility of using reed and sawdust as waste materials to produce cementitious building units
topic reed, sawdust , thermal conductivity, cementitious building units
url http://joe.uobaghdad.edu.iq/index.php/main/article/view/336
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