Interfacial behavior of cement stabilized rammed earth: Experimental and numerical study

Pavan, G. S.; Ullas, S.N.; Rao, Koppula Srinivas

doi:10.1016/j.conbuildmat.2020.119327

Cited by 14 publications

(3 citation statements)

References 29 publications

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“…A clear correlation between fracture energy and tensile strength was proved [38]. The cohesion and friction between layers of CSRE walls were tested, revealing a high level of dependence between the moisture of specimens and their in-plane shear loads [39], and increases in the flexural tensile strength were provided by the addition of gravel fraction [40]. Few studies have tested the corrosion protection of steel embedded in CSRE [41] and the bond strength of rebars in CSRE [42,43], testing the possibility of using CSRE in a similar way as modern reinforced concrete in construction.…”

Section: Shape Of the Specimen Stabilizer Type Compressive Strength [Mpa]mentioning

confidence: 90%

Studies on the Ageing of Cement Stabilized Rammed Earth Material in Different Exposure Conditions

Rosicki

Narloch

2022

Materials

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This paper aims to test the deterioration of cement stabilized rammed earth and consider its characteristics during its lifespan in various exposure conditions. Both visual and mechanical properties were tested to determine the impact of long-term exposure to natural weather conditions. Cemented stabilized rammed earth is a variation of the traditional rammed earth building material which has been used since ancient history and is strengthened by the addition of stabilizers in the form of Portland cement. This article analyzes the long-term properties of wall panels made of this material, which were subjected to varying exposure conditions for five years. After this period, compression tests of specimens cut from panels stored in various environmental conditions were carried out. Based on the results and visual properties of the specimens, long-term changes in unconfined compressive strength were observed and primary durability attributes were described. Despite minimal visible wear to the external layers of the wall panels, the natural weather conditions proved to deteriorate material strength characteristics, especially on specimens with high cement content. No correlation between visual characteristics and compressive strength measures were found. The present study is vital in adequately describing cement stabilized rammed earth behavior in natural weather conditions typical of a humid continental climate.

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Section: Shape Of the Specimen Stabilizer Type Compressive Strength [Mpa]mentioning

confidence: 90%

Studies on the Ageing of Cement Stabilized Rammed Earth Material in Different Exposure Conditions

Rosicki

Narloch

2022

Materials

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“…Cement-stabilised rammed earth (CSRE) stands out for its remarkable thermal insulation properties and structural strength, offering a sustainable solution for modern construction [31]. studies underscore its durability, showing that even after five years of exposure, CSRE maintains a low moisture content of around 6% and achieves impressive compressive strength levels of up to 5 MPa [32]. Cement-stabilised rammed earth (CSRE) stands out for its remarkable thermal insulation properties and structural strength, offering a sustainable solution for modern construction [31].…”

Section: Cement Stabilised Rammed Earthmentioning

confidence: 99%

Stabilzed Rammed Earth- A Review

R K

2024

IJSREM

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Rammed earth construction has gained prominence as a sustainable building technique due to its eco-friendly nature and aesthetic appeal. However, ensuring the long-term durability of rammed earth structures remains a critical challenge. This paper investigates the efficacy of incorporating stabilizers, including cement, bagasse ash, and glass fibers, to address these concerns and enhance the performance of rammed earth structures. Drawing upon extensive research and experimentation, the paper examines the impact of stabilizers on material composition, structural integrity, and long-term durability. Through comparative analysis and empirical studies, the effectiveness of various stabilizers in improving compressive strength and resistance to weathering is evaluated. The role of cement as a traditional stabilizer is scrutinized, alongside emerging alternatives such as bagasse ash, a byproduct of sugarcane processing, and innovative additives like glass fibers. Furthermore, the paper investigates the influence of stabilizer incorporation on construction practices and life cycle considerations. Key factors such as cost-effectiveness, sustainability, and compatibility with traditional rammed earth methods are analyzed to provide comprehensive guidance for practitioners and researchers. The findings highlight promising avenues for enhancing the durability and compressive strength of rammed earth structures through stabilizer utilization. Practical recommendations are offered for implementing these strategies in real-world construction projects, emphasizing the potential for innovation and sustainability in contemporary architectural practice. Keywords: · Stabilized Rammed Earth · Un-Stabilized Rammed Earth

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“…e results showed that the integrity and bearing capacity can be effectively improved. Based on the investigation and analysis of the earthquake damage mechanism of raw-soil buildings, Pavan et al [6] analyzed the interfacial behavior of cement-stabilized rammed Earth. Zhou et al [7] conducted a shaking table test and analyzed the scale model of two types of adobe house reinforcement modes.…”

Section: Introductionmentioning

confidence: 99%

Seismic Vulnerability Analysis of Rural Modified Raw‐Soil Structures

Hou

Zhang

et al. 2021

Shock and Vibration

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Based on the concept of environmental protection of solid waste utilization, material testing is conducted to achieve native improvement using coal gangue-based limestone-calcined clay cement (LC3). Finite element (FE) models of rural raw-soil architecture with a colored-steel roof (RACSR) were established. The effect of modified soil type and seismic character on the vulnerability of single-story raw-soil structures was investigated using probabilistic seismic demand (PSD) analysis. The seismic response characteristics of 80 representative sequences were comparatively investigated when subjected to northwest clay (raw soil) of China, fiber and stone-improved clay (modified soil), and coal gangue-based limestone-calcined clay cement (LC3 soil). The maximum interstory drift angle (ISDAmax) was lower in the LC3 soil model and the modified soil model compared to the raw-soil model. The use of LC3 soil improves structural resistance and reduces the damage probability of a structure, and the influence of different ultimate failure states on the vulnerability of the raw-soil structure was studied.

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Interfacial behavior of cement stabilized rammed earth: Experimental and numerical study

Cited by 14 publications

References 29 publications

Studies on the Ageing of Cement Stabilized Rammed Earth Material in Different Exposure Conditions

Studies on the Ageing of Cement Stabilized Rammed Earth Material in Different Exposure Conditions

Stabilzed Rammed Earth- A Review

Seismic Vulnerability Analysis of Rural Modified Raw‐Soil Structures

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