Optimization of the Granular Mixture of Natural Rammed Earth Using Compressible Packing Model

Author:

Dialmy Atar1,Rguig Mustapha1,Meliani Mehdi1ORCID

Affiliation:

1. ERIC (LAGCEH), Hassania School of Public Works, Casablanca BP 8108, Morocco

Abstract

Rammed earth (RE) construction is an ancestral technique that allows for the building of durable and resistant constructions. RE buildings are sustainable and environment-friendly, and ensure energy optimization during the construction cycle. For these reasons, many of the following RE characteristics are studied: mechanical strength, seismic resistance, and thermal performance. However, the mix design of RE soils has been rarely studied. There is practically no scientific approach that allows for defining precise dosages of clay, silt, sand, and gravel used in RE materials. The broader aim of this article is to determine a scientific mix design method to find an optimal RE granular mixture. The compressible packing model (CPM) is applied to study the effect of every granular class on compactness and define the optimum mixture. Many tests have been conducted such as the Modified Proctor, compression test, and ultrasonic velocity pulse test to evaluate the relevance of this model. The results suggest many granular corrections for RE material that considerably enhance compactness and unconfined compressive strength (UCS). It was found that one granular correction provides a 137% increase in the initial UCS. Therefore, this approach enables the defining of which granular class is to be added or reduced to optimize the mechanical properties of RE.

Publisher

MDPI AG

Subject

Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment,Geography, Planning and Development,Building and Construction

Reference42 articles.

1. Lomite, H., and Kare, S. (2009). Impact of Construction Material on Environment, University College of Borås.

2. Johnson, D.C. (2020). The Energy Efficiency and Living Comfort of a Stabilized Rammed Earth Dwelling in Comparison with a Traditional Stud Frame Building. [Master’s Thesis, West Virginia University].

3. Walker, P. (2000). Standards Australia International. The Australian Earth Building Handbook, Standards Australia International.

4. Durability of Rammed Earth Walls Exposed for 20 Years to Natural Weathering;Bui;Build. Environ.,2009

5. Structural Capacity of Rammed Earth in Compression;Maniatidis;J. Mater. Civ. Eng.,2008

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