Compressive strength characteristics of cement stabilized rammed earth walls

Jayasinghe, C; Kamaladasa, N.

doi:10.1016/j.conbuildmat.2006.05.049

Cited by 187 publications

(66 citation statements)

References 7 publications

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“…Figure 12 shows that the compressive strength of the earth F increases according to the cement content rate. All recent studies [9,3,6,10,11,12,13,21,22] have shown that the mechanical properties increase with the cement dosage without giving the function of this increase. Since this increase is varied according to the particle size and the mineralogical composition of the earth, which impacts the economic investment in cement.…”

Section: Mechanical Results and Interpretationsmentioning

confidence: 99%

Durability of the earth mortar: Physico-chemical and mineralogical characterization for the reduction of the capillary rise

et al. 2018

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Abstract. The stabilization of the earth material in the fields related to the earthen construction, in compliance with the standards in force, allows strong results of strength and durability. The chemical and mineralogical elements play an important role, in the presence of an 'optimum' cement dosage, to strengthen the ties between the clays and the grains of the earth.. This approach targets the search for better performances in the use of natural materials resource in an ecoresponsible habitat. This study presents the experimental results of the four techniques of mineralogical and chemical analysis on mortar specimens obtained from earth of the city of Fez. The results of the uni-axial compressive tests of the cylindrical specimens for this earth, associated by various percentages 0%, 4%, 7% and 10% by weight of cement, make it possible to analyze the effect of the mineralogical and chemical elements on the mechanical properties, namely Young's modulus, compressive strength and limiting deformation. However, we determine the water absorption coefficient of the mortar for different cement dosages in order to optimize the durability of the mortar against bad weather, rain and / or very wet climates. In the earth mortar of Fez, the strong presence of calcite (CaCO3), quartz SiO2 and dolomite CaMg (CO3)2 amplifies the improvement of the behavior of the material by the addition of cement. In fact, this strong presence of calcite stabilized the clay by cementing quartz and the cement matrix to strengthen the ties between the grains of the earth. In addition, with respect to the capillary rise, the water absorption decreases with the addition of cement. We also note that the evolution of the mechanical properties is of no importance except in the interval [4 to 7%] which represents the zone of effect for cement stabilization and which houses the optimum technicoeconomic cement dosing.Résumé. La stabilisation du matériau terre crue dans les domaines liés à la construction en terre, dans le respect des normes en vigueur, permet des résultats de résistance mécanique et de durabilité forts probants. Les éléments chimiques et minéralogiques y jouent un rôle déterminant et permettent, en présence d'un dosage 'optimal' du ciment, de renforcer les liens entre les argiles et les grains de la terre. Ainsi, la connaissance de la nature de la terre crue à utiliser dans la construction, par l'identification scientifique de ses composantes, est incontournable à cet effet. Cette démarche cible la recherche de performances meilleures dans l'utilisation des matériaux naturels et bio ressourcés au niveau d'un habitat éco responsable. Notre recherche présente les résultats expérimentaux des quatre techniques des analyses minéralogiques et chimiques sur des éprouvettes de mortier obtenues à partir d'une terre de la ville de Fès par la diffraction des rayons X, l'Infrarouge, le Microscope électronique à balayage et la fluorescence X. Les résultats des essais de compression uni-axiale des éprouvettes cylindriques de cette terre associé...

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Section: Mechanical Results and Interpretationsmentioning

confidence: 99%

Durability of the earth mortar: Physico-chemical and mineralogical characterization for the reduction of the capillary rise

et al. 2018

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“…Reddy, et al, (2006) investigated the compressive strengths and elastic properties of stabilised mud mortar masonry using cement mortar, cement-lime mortar and cement-soil mortars and came to the conclusion that an increase in cement content of a cement-soil mortar from 10 % -15% results in about 20% increase in the masonry compressive strength [3]. A study conducted on the compressive strength characteristics of cement stabilised rammed earth walls by Jayasinhe, et al, (2007) indicate that laterite soils stabilised with about 6% cement can be used as a wall material for single storey houses in tropical climatic conditions [4].…”

Section: Mud Mortar -A Reviewmentioning

confidence: 99%

Experimental Study on the Physical Properties of Mud Mortar in Comparison with the Conventional Mortars

Lekshmi¹,

Vishnudas²,

Nair³

2016

CiVEJ

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“…Until recently, more than half of the world's population have chosen to build their homes of this soil-based structures due to its high durability, low cost, good resistant to fire and weather factors, and aesthetically attractive [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Strength Between Laterite Soil and Clay Compressed Stabilized Earth Bricks (CSEBs)

et al. 2017

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Abstract. Compressed Stabilized Earth Brick (CSEB) is a sustainable material utilizing locally available soils mixed with stabilizers to increase its strength. Two main factors affecting the strength of prototype are its compressive strength and water absorption rate. In this study, the mix proportion ratio for producing CSEB prototypes from laterite soil and clay types was 1:10 (cement:soil). Three different compactions (i.e. 2000, 3000, and 4000 Psi) were applied to produce prototypes with dimension of 100×50×40 mm. The samples were tested at the ages of 7 and 28 days. For laterite soil CSEB, the optimum strength was achieved by the sample subjected to 2000 Psi compaction,withits compressive strength of 9.0 N/mm 2 and water absorption rate of 14.9%. For clay CSEBthe optimum strength observed was the sample subjected to 4000 Psicompaction, with the compressive strength of 5.8 N/mm 2 and water absorption rate of 17%. However, the compressive strength of clay CSEB is still below the level specified in the MS 76:1972, which is over 7 N/mm 2 for the load-bearing fired brick Class (1). This study also revealed that the increased in compression pressure would result in different strength performances for both CSEBs made from laterite soil and clay.

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Compressive strength characteristics of cement stabilized rammed earth walls

Cited by 187 publications

References 7 publications

Durability of the earth mortar: Physico-chemical and mineralogical characterization for the reduction of the capillary rise

Durability of the earth mortar: Physico-chemical and mineralogical characterization for the reduction of the capillary rise

Experimental Study on the Physical Properties of Mud Mortar in Comparison with the Conventional Mortars

Comparison of Strength Between Laterite Soil and Clay Compressed Stabilized Earth Bricks (CSEBs)

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