Over the World, the construction industry contributes 40–45% of the total energy. Where significant energy is consumed in manufacturing and transportation of construction materials, causes irreversible environmental impact. Other hand, large energy is required to achieve thermal comfort. Since the passive cooling and cost-effective attribute of rammed earth gaining attention in modern engineering. Stabilized rammed earth is an ancient technique used worldwide from many years. Recently, to promote sustainability more focused on locally sourced natural material. Thermal conductivity is an important parameter has to study in this regard. Paper summarized the effect of type and amount of stabilizer on thermal behaviour of earth material. Besides reinforcing the geo-material is a common trend to enhance its strength, the study extended the effect of inclusion of fibers on the flexural and tensile strength of the same. Optimum use of stabilizer enhances the above properties of geo-material. An increase in amount of clay and stabilizer improves the strength, although reduces the pores results in increase the thermal conductivity. Since presence of organic matter greatly enhance the thermal property up-to great extent. No significant effect of natural fibers on strength, however it improves thermal conductivity. The agricultural waste like RHA, straw fibers, coconut coir’s etc. reduces the dry density of the geo-material and has a positive impact on conductivity, but reduces the strength. Hence to balance the strength and thermal property of geo-material, study of optimum dose of stabilizer is the key factor in such constructions.

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Influence of Stabiliser and Reinforcement on Thermal Performance of Stabilized Rammed Earth: A Review

  • Vaishali Rajurkar,
  • A. Z. Chitade

摘要

Over the World, the construction industry contributes 40–45% of the total energy. Where significant energy is consumed in manufacturing and transportation of construction materials, causes irreversible environmental impact. Other hand, large energy is required to achieve thermal comfort. Since the passive cooling and cost-effective attribute of rammed earth gaining attention in modern engineering. Stabilized rammed earth is an ancient technique used worldwide from many years. Recently, to promote sustainability more focused on locally sourced natural material. Thermal conductivity is an important parameter has to study in this regard. Paper summarized the effect of type and amount of stabilizer on thermal behaviour of earth material. Besides reinforcing the geo-material is a common trend to enhance its strength, the study extended the effect of inclusion of fibers on the flexural and tensile strength of the same. Optimum use of stabilizer enhances the above properties of geo-material. An increase in amount of clay and stabilizer improves the strength, although reduces the pores results in increase the thermal conductivity. Since presence of organic matter greatly enhance the thermal property up-to great extent. No significant effect of natural fibers on strength, however it improves thermal conductivity. The agricultural waste like RHA, straw fibers, coconut coir’s etc. reduces the dry density of the geo-material and has a positive impact on conductivity, but reduces the strength. Hence to balance the strength and thermal property of geo-material, study of optimum dose of stabilizer is the key factor in such constructions.