Compressed stabilized earth blocks (CSEB) with buffalo dung as binding agent [manuscript]
No Thumbnail Available
Views
...
Downloads
...
Date
2019
Authors
Rhonalyn T. Guiang
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Earth is one of many alternative materials that can be used in place of residential sick building. However, it suffers from shrinkage, cracking, low strength, lack of durability and dimensional stability for building construction. This study contributes in making an alternative low cost structural material for farm buildings by using a locally available soil and agricultural waste material in CSEB. The study was conducted in order to determine the potential of buffalo dung as binding agent in CSEB.
The blocks was manually molded using the designed steel molder. The blocks were cured for 28 day and watering of blocks was done twice a day. The blocks were subjected to density, water absorptivity, drying shrinkage and compressive strength test based on different soil: cement:buffalo dung ratio of 95:5:0 (T1), 85:5:10 (T2), 75:5:20 (T3) and 65:5:30 (T4). Unit cost of the block was computed based on the materials and labor cost of each treatment.
This study was laid out in a Completely Randomized Design (CRD). Data were analyzed using Analysis of vaiance (ANOVA) and Least Significant Difference (LSD) at 5% level of significance was used for the comparison among means.
Treatment 2 the highest density of 1602.396 kgm¯³ and lowest water absorptivity of 9.3478%. As the buffalo dung content increased the density decreased due to the presence of fiber in the dung and as the density of soil is increased, its porosity is reduced and less water can penetrate it. The computed drying shrinkage was highest in T3 having a value of 7.9912%. The result on compressive strength of the blocks was highest in T1 having a value of 0.919 MPa. Material ratio has no significant effect in both drying shrinkage and compressive strength. In addition, as the buffalo content increased the price per block decreased.