Abstract
The aim of this study is to examine the effects of cement stabilization on the mechanical stress of compressed stabilized earth blocks (CSEBs) and adobe stabilized earth bricks (ASEBs). Hence, this work is based on an experimental study carried out in order to determine the geotechnical properties of the samples soil, namely, the dry particle size analysis after washing, the particle size distribution by sedimentometry, Atterberg limits, and the preparation of specimens with different levels of cement proportions. Moreover, single compression and three-point bending compression out on specimens measuring 4x4x4cm3 and 4x4x16cm3 respectively. The findings indicate that dosing with 8% cement results in a clear increase in compression stress of approximately 25.55% for CSEBs compared to the reference set at 0% and 22.85% for ASEBs. On the other hand, for a dosage of 4%, we observe a slight increase in stress by simple compression of around 3.26% for CSEBs and 3.14% for ASEBs. For three-point bending compression for a cement dosage of 8%, there is also an increase in stress of about 25% for the CSEBs compared to the reference taken at 0% and 23.02% for the ASEBs.
Highlights
The earth has been one of the main construction materials used on our planet for almost 10.000 years
The results were obtained for three-point bending compression for a cement dosage of 8%, there is an increase in stress of about 45% for the compressed stabilized earth blocks (CSEBs) compared to the adobe stabilized earth bricks (ASEBs)
For a dosage of 4%, we observe a slight increase in stress by three-point bending compression of around 37% for CSEBs compared to the ASEBs
Summary
The earth has been one of the main construction materials used on our planet for almost 10.000 years. The axial compression failure initial cracks appeared on the contact surfaces of the two blocks, followed by cracking at the corner of the specimen (Guanqi et al, 2021). This material shows its current form with numerous assets necessary for the construction of sustainable, comfortable and economic accommodations (Houben et al, 1996; Césaire et al, 2020). The use of raw earth as a building material for adobe earth bricks presents significant limitations, such as the high absorption rate due to the relatively high porosity, the formation of drawback during drying and a low resistance to humidity.
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