Physical, Mechanical, and Thermal Performance of Cement-Stabilized Rammed Earth–Rice Husk Ash Walls

Milani, Ana Paula da Silva; Labaki, Lucila Chebel

doi:10.1061/(asce)mt.1943-5533.0000439

Cited by 28 publications

(13 citation statements)

References 7 publications

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“…Jayasinghe and Kamaladasa (2007) assessed the compressive strength (dry and wet) of distinct soils (sandy, hard laterite, clayey) for varying cement content. Similarly, Milani and Labaki (2012) assessed the compressive strength obtained by distinct dosages of cement and soil (with rice hush ash), but also included an evaluation of thermal performance and durability. Differently, Burroughs (2008) focused on the properties of soils (stabilized with cement and/or lime) and proposed a method for determining soils suitable for rammed earth stabilization.…”

Section: Introductionmentioning

confidence: 99%

Greening stabilized rammed earth: devising more sustainable dosages based on strength controlling equations

Rocha

Consoli

Johann

2014

Journal of Cleaner Production

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Section: Introductionmentioning

confidence: 99%

Greening stabilized rammed earth: devising more sustainable dosages based on strength controlling equations

Rocha

Consoli

Johann

2014

Journal of Cleaner Production

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“…According to the author, for lower than 4% contents, "stabilized soil" term becomes inadequate and "optimized soil" term should be adopted. Contents of 10% lime and 10% cement were chosen according recommendations of Milani and Labaki (2012). Additional 4% of sodium silicate associated to lime and cement contents was based on recommendations of Hendriks and Pietersen (2000).…”

Section: Treatment Definitionmentioning

confidence: 99%

“…Therefore, inverted relation between thermal conductivity and block density is noticed. Milani and Labaki (2012), testing stabilized soil, cement blocks (10% cement content) added with rice husk ash mixture (92.5% soil + 7.5% ash and 100% soil + 0% ash), found values of thermal conductivity of 0.65 and 0.80 W (m Since essays were performed for the T5 mixture (sandy soil + 10% cement + 4% sodium silicate), the different mixture effects in the thermal conductivity values was not possible to evaluate. Nevertheless, thermal conductivity of materials is known to have a close relation to apparent dry specific mass.…”

Section: Physical and Mechanical Propertiesmentioning

confidence: 99%

Mechanical and thermal behaviors of stabilized compressed earth blocks

Ferreira

Ulhôa

2016

Cieng

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The effect of lime and Portland cement associated to sodium silicate (Na2SiO3) on the mechanical and thermal behavior of compressed earth blocks was analyzed. Mini panels were molded and their mechanical and thermal properties were determined in laboratory. For such, sandy and clayey soils were added with Portland cement and lime at 6% and 10% contents, and sodium silicate at dosage of 4%. The compressed earth blocks were cured in a humidity chamber for seven, 28, 56 and 91 days. At the ages of 28, 56 and 91 days the specimens were submitted to the compressive test and water absorption tests at seven days. The thermal conductivity was obtained by the guarded hot plate method and the specific heat value by the calorimeter method. Afterwards, the main thermophysical properties were calculated and analyzed by means of walls thermal behaviors. The best compressive strength and water absorption capacity results were reached by the sandy soil with addition of Portland cement or lime at 10% content, both added of sodium silicate. Regarding to the thermal behavior, the results pointed out that the stabilized compressed earth blocks reached the best thermal behavior when compared to the conventional ones under the same use conditions. Keywords: Stabilized earth, Soil-cement, Mechanical properties, Thermophysical properties. RESUMOFoi analisado o efeito da adição de cimento e cal associados ao silicato de sódio (Na2SiO3) sobre o comportamento mecânico e térmico de tijolos prensados de terra crua. Mini painéis foram moldados e suas propriedades mecânicas e térmicas foram determinadas em laboratório. Para tal, cimento Portland e cal, nas dosagens de 6% e 10% e silicato de sódio, na dosagem de 4% foram adicionados a dois tipos de solos, um arenoso e outro argiloso. Os tijolos foram curados em câmara úmida por sete, 28, 56 e 91 dias. Os ensaios de compressão simples foram realizados nas idades de 28, 56 e 91 dias e os de absorção de água aos sete dias. A condutividade térmica foi obtida pelo método da placa quente e o calor específico foi determinado por calorímetro. As principais propriedades termofísicas foram calculadas e analisadas por meio do comportamento térmico de paredes. Os melhores resultados em termos de compressão simples e absorção de água foram alcançados pela mistura solo arenoso e cimento ou cal na dosagem de 10% associados ao silicato de sódio. Os resultados apontaram que os tijolos prensados de terra crua alcançaram melhor comportamento térmico comparados aos tijolos cerâmicos convencionais.

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“…In modern society, excessive exploitation of natural resources causes serious environmental pollution, and the environmental pollution problem becomes a prominent global economic, social, and political issue. erefore, it will be of immense benefit to minimize the impact on the environment to develop and utilize low embodied energy building materials [11,12]. Nowadays, there is a growing interest in using low carbon and low embodied energy materials throughout the world in the context of sustainable building.…”

Section: Introductionmentioning

confidence: 99%

Cyclic Behavior of Confined Cement‐Stabilized Rammed Earth Walls

Yang

Wang²,

Zhao

2018

Shock and Vibration

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Rammed earth is widely utilized in both developed and developing countries due to its low embodied energy and good natural moisture buffering of indoor environments. However, its application in seismic active regions was limited owing to its intrinsically low resistance to dynamic actions. is paper presents the test results of four cement-stabilized rammed earth walls with confining tie-column elements under cyclic loading, aiming at assessing the cyclic behavior of proposed rammed earth walls with confining tie-column elements. e test results revealed that the proposed confining tie-column elements could significantly improve the cyclic behavior of cement-stabilized rammed earth wall, exhibiting good strength and ductility.

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Physical, Mechanical, and Thermal Performance of Cement-Stabilized Rammed Earth–Rice Husk Ash Walls

Cited by 28 publications

References 7 publications

Greening stabilized rammed earth: devising more sustainable dosages based on strength controlling equations

Greening stabilized rammed earth: devising more sustainable dosages based on strength controlling equations

Mechanical and thermal behaviors of stabilized compressed earth blocks

Cyclic Behavior of Confined Cement‐Stabilized Rammed Earth Walls

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