| Title | मृत्तिका (Earth)Rare Mr̥ttikā Earth |
|---|---|
| Description | Mr̥ttikā (Earth), encompassing *m मिट्टी* (Miṭṭī), *भूमि* (Bhūmi), and *मृदा* (Mr̥dā), denotes earthen materials utilized extensively in Indic heritage architecture since prehistoric times. Its variable composition, sourced from diverse geological formations across the Indian subcontinent, includes clay minerals, silt, and sand, influencing its density (1400-2200 kg/m³) and porosity (20-50%). Traditional processing methods involved quarrying suitable *m मिट्टी* (Miṭṭī) from riverbeds or fields, followed by mixing with organic binders like straw to enhance tensile strength and reduce shrinkage (5-15%) [2]. Adobe bricks and rammed earth (*कच्चा* *घर*) were prevalent construction techniques, exemplified in Harappan settlements and later structures under the Maurya and Gupta Dynasties. *मृत्तिका* (Mr̥ttikā) served as walls, floors, and roofs, offering high thermal mass and insulation (thermal conductivity: 0.2-1.5 W/mK). Conservation efforts for heritage sites necessitate understanding the material's degradation mechanisms and employing compatible repair materials, often involving re-application of traditional *मृत्तिका* (Mr̥ttikā) plasters [3]. *भट्टी* (Bhaṭṭī) hearth furnaces [1] were used to create fired bricks, a more durable alternative. |
| Also Known As | Earth Mr̥ttikā Earth Soil Clay Ground Dirt मिट्टी भूमि धरती मृदा மண் (Maṇ) మట్టి (Maṭṭi) ಮಣ್ಣು (Maṇṇu) മണ്ണ് (Maṇṇ) माती (Mātī) |
| Tags | Earth Mud Soil Adobe Wattle and daub Rammed Earth Vernacular Clay Plaster Laterite Tibet Erosion मिट्टी Miṭṭī मृतिका Mrittika मृत्तिका Mrittika Mrittikā Ahom |
| Material ID | INHFMAT-529402534-20-11-25-MR |
| URI | https://www.inheritage.foundation/aat/material/earth |
| API Endpoint | https://www.inheritage.foundation/api/v1/aat/materials/earth |
| Total Sites | 1 |
| Primary Sites | 1 |
| Created | November 20, 2025 |
| Last Updated | November 28, 2025 |
External References
Material Types
| Types | Soil Clay Adobe Rammed Earth Mud Brick Mud Plaster Silt Sand Loam Earthen Material Unfired Clay |
|---|
Regions
| Regions | Rajasthan Gujarat Karnataka India Deccan Plateau Tamil Nadu Assam Bengal Maharashtra Tibet Himalayan Region Bihar Meghalaya Arid and Semi-Arid Regions Manipur |
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Historical Context
| Time Periods | Prehistoric Period Ancient Period Medieval Period Pre-Colonial Era 15th Century CE Onwards 16th-18th Century CE 17th Century CE 13th Century CE Harappan Civilization (2600-1900 BCE) Ahom Period (1228-1826) |
|---|---|
| Dynasties | Maurya Dynasty Gupta Dynasty Indus Valley Civilization Ahom Dynasty Jaintia Kings Fifth Dalai Lama's Reign Sakya Dynasty Local Rulers Village Communities |
Geographic Sources
| Sources | Local soil deposits Riverbeds Agricultural land Excavation sites Local soil deposits near Sivasagar Local soil deposits near Nartiang Local soil deposits near Lhasa Local soil deposits near Shigatse Local soil deposits near construction sites |
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Properties
| Properties | Density: 1.4-2.2 g/cm³ Density: 1400-2200 kg/m³ Porosity: 20-50% Compressive strength: 0.5-5 MPa Thermal conductivity: 0.2-1.5 W/mK Shrinkage: 5-15% upon drying Water absorption: 15-25% High thermal mass Variable composition (clay, silt, sand) |
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Common Uses
| Uses | Adobe bricks for walls Rammed earth walls Mud bricks Mud plaster Earthen floors Wattle and daub walls Roofing material (with reinforcement) Plastering (with additives) Foundation fill Earthen plasters Rammed earth foundations Flooring Walls Roofs Plaster base Insulation |
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Related Materials
| Materials | कच्चा ईंट - Kacchā Īnt (Unfired Brick) घास - Ghās (Grass) चूना - Chunā (Lime Mortar) भूसा - Bhūsā (Straw) चूना - Chunā (Lime) गोबर - Gobar (Cow Dung) Kāshtha (Wood) गोमय - Gomaya (Cow Dung) Straw तृण - Trina (Straw) कषाय - Kashaya (Herbal Extracts) |
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Related Styles
| Styles | Vernacular Architecture Rural Architecture Ahom Architecture Tibetan Architecture Tibetan Vernacular Architecture Tibetan Buddhist Architecture |
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Related Categories
| Categories | Rural housing Fortifications (temporary) Residential Rural structures Residential Buildings Fortifications Boundary Walls House Wall Oven Rural Buildings Fortification Rural Structures Agricultural Structures Monastery Residential buildings Earthen structures Fort Domestic Architecture Palace Fortress Monastery Walls |
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Conservation Notes
| Notes |
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Recommended Sources
| Title | Type | Notes |
|---|---|---|
| Earthen Architecture in India | Book | Construction techniques and conservation |
| Traditional Knowledge Digital Library | Database | Vernacular construction techniques |
| Ancient earthen architecture: a sustainable building material | Journal Article | Properties and conservation of earthen structures |
| Traditional Knowledge Digital Library | Database | Traditional building techniques |
| Appropriate Building Materials Advisory Group (ABMAG) Publications | Technical Report | Earth construction techniques |
| Traditional Building Techniques of Assam | Book | Earthen construction methods |
| Traditional Earth Building Techniques in India | Book | Detailed analysis of earth construction methods |
| Traditional Indian Building Techniques | Book | Earth construction methods |
| Appropriate Technology Journals | Journal Article | Earth construction techniques |
| Traditional Knowledge Systems of India | Book | Earthen construction techniques |
Heritage Sites (1)
| Site Name | Status | Usage | Confidence |
|---|---|---|---|
| Khongjom Fort Thoubal | Primary | 100% |