This document provides information on various mud construction techniques, including soil testing methods, stabilization techniques, and specific roofing methods like the Guna vault roof and Nubian dome. Some key points:
- Various field and lab tests are described to determine the composition and properties of soils for construction, including color, texture, biscuit, and sieve tests.
- Stabilization techniques can improve soil properties by adding materials like cement, straw or plant juices.
- The Guna vault roof is made from tapered burnt clay pipes socketed together in arches to form a strong, lightweight roof.
- The Nubian dome technique builds vaults and domes without centering by laying courses almost
The document discusses various earth-based building materials and techniques. It provides details on analyzing soil composition through various tests. Mud construction materials like cob, rammed earth, adobe, and stabilized mud bricks are explained. Cob involves shaping mud into egg-shaped masses and stacking them without forms. Rammed earth uses a form to compress damp soil mixtures into solid walls. Adobe involves shaping soil-straw mixtures into bricks that are sun-dried. Indigenous stabilizers like straw and plant juices can be used to improve soil properties for construction.
Mud has been used as a building material for thousands of years. It provides a sustainable construction option that requires minimal energy and resources. Various mud construction techniques are described, including stacked earth (COB), rammed earth, adobe, wattle and daub, formed earth, earth filled in, compressed earth blocks, extruded earth, and cut earth. Mud construction provides benefits like natural temperature regulation, low costs, and environmental friendliness compared to other materials. However, mud buildings require regular maintenance and can be susceptible to damage from water or pests.
Earth Air Tunnels utilize the constant underground temperature to provide buildings with air conditioning. The tunnels work best for large buildings by allowing air pumped through to attain the cooler earth temperature. Variables like tunnel length, depth, diameter, and air/earth temperature differences determine effectiveness. Earth Air Tunnels have been successfully used at TERI retreat in Delhi to maintain living quarters between 20-30°C year-round.
Rat trap bond is a method of brick masonry construction where bricks are laid vertically instead of horizontally, creating a cavity within the wall. It was introduced by architect Laurie Baker in 1970s as a more cost effective and thermally efficient alternative to conventional masonry walls. The rat trap bond technique uses 20% less material but has comparable strength to a standard 9-inch brick wall, resulting in overall construction cost savings of about 26%.
Achyut Kanvinde was an Indian architect born in 1916 who made significant contributions to architecture in India. Some of his major works included the IIT Kanpur campus built from 1961-1965 and the Doodhsagar Dairy complex in Gujarat from 1973. Kanvinde was influenced by modernist architects like Claude Batley and Walter Gropius. He emphasized functionalism, modern architecture, and regionalism in his designs. Notable features of his works included exposed concrete structure, use of local materials like brick, and optimizing building functions. Kanvinde received several prestigious awards over his career and made lasting contributions to institutional and industrial architecture in India.
The Belapur Housing project in Navi Mumbai, also known as the Artist's Village, was designed by architect Charles Correa in 1986 to provide affordable housing for artists. The project consisted of 550 low-rise dwelling units spread across 6 hectares of land in a high-density development. Each unit was placed on its own plot to allow residents to freely modify and expand their homes over time. While originally intended for artists, few artists ultimately lived there as it was located far from Mumbai's urban center. Over the decades, residents have significantly modified the structures, often expanding vertically rather than horizontally as originally planned.
The document discusses various earth-based building materials and techniques. It provides details on analyzing soil composition through various tests. Mud construction materials like cob, rammed earth, adobe, and stabilized mud bricks are explained. Cob involves shaping mud into egg-shaped masses and stacking them without forms. Rammed earth uses a form to compress damp soil mixtures into solid walls. Adobe involves shaping soil-straw mixtures into bricks that are sun-dried. Indigenous stabilizers like straw and plant juices can be used to improve soil properties for construction.
Mud has been used as a building material for thousands of years. It provides a sustainable construction option that requires minimal energy and resources. Various mud construction techniques are described, including stacked earth (COB), rammed earth, adobe, wattle and daub, formed earth, earth filled in, compressed earth blocks, extruded earth, and cut earth. Mud construction provides benefits like natural temperature regulation, low costs, and environmental friendliness compared to other materials. However, mud buildings require regular maintenance and can be susceptible to damage from water or pests.
Earth Air Tunnels utilize the constant underground temperature to provide buildings with air conditioning. The tunnels work best for large buildings by allowing air pumped through to attain the cooler earth temperature. Variables like tunnel length, depth, diameter, and air/earth temperature differences determine effectiveness. Earth Air Tunnels have been successfully used at TERI retreat in Delhi to maintain living quarters between 20-30°C year-round.
Rat trap bond is a method of brick masonry construction where bricks are laid vertically instead of horizontally, creating a cavity within the wall. It was introduced by architect Laurie Baker in 1970s as a more cost effective and thermally efficient alternative to conventional masonry walls. The rat trap bond technique uses 20% less material but has comparable strength to a standard 9-inch brick wall, resulting in overall construction cost savings of about 26%.
Achyut Kanvinde was an Indian architect born in 1916 who made significant contributions to architecture in India. Some of his major works included the IIT Kanpur campus built from 1961-1965 and the Doodhsagar Dairy complex in Gujarat from 1973. Kanvinde was influenced by modernist architects like Claude Batley and Walter Gropius. He emphasized functionalism, modern architecture, and regionalism in his designs. Notable features of his works included exposed concrete structure, use of local materials like brick, and optimizing building functions. Kanvinde received several prestigious awards over his career and made lasting contributions to institutional and industrial architecture in India.
The Belapur Housing project in Navi Mumbai, also known as the Artist's Village, was designed by architect Charles Correa in 1986 to provide affordable housing for artists. The project consisted of 550 low-rise dwelling units spread across 6 hectares of land in a high-density development. Each unit was placed on its own plot to allow residents to freely modify and expand their homes over time. While originally intended for artists, few artists ultimately lived there as it was located far from Mumbai's urban center. Over the decades, residents have significantly modified the structures, often expanding vertically rather than horizontally as originally planned.
Charles Correa was an Indian architect known for his sensitivity to the needs of the urban poor. He developed master plans for cities like Navi Mumbai that focused on decentralization into self-sufficient townships with residential neighborhoods organized by income level. At the micro level, his designs for low-income housing emphasized open-to-sky spaces, courtyards, and terraces to accommodate community needs within a limited footprint. His works show an adaptation of modernism to local culture through vernacular influences like tiled roofs, brick walls, and operable wooden louvers.
The document discusses vernacular architecture, which refers to traditional construction methods used by local builders without professional architects. It focuses on vernacular architecture in hill regions of India, describing characteristics like use of local materials, load-bearing structures, small openings, and sloping roofs. Specific examples from Himachal Pradesh, Kashmir, and Ladakh are provided, including construction techniques like dhajji walls and materials used like wood, stone, and mud. The importance of studying vernacular architecture for disaster recovery and sustainable design is also noted.
In this era of concrete, let's understand the impact on the environment and revive the old technique, construction and make the environment pollution-free.
Raj Rewal was an Indian architect known for his approach called "critical regionalism" which emphasized local topography, climate, and traditions rather than scenography. Some of Rewal's notable works that exemplified this approach included the State Trading Corporation Tower in New Delhi which used a structural concept as the basis for its architectural form. Rewal also designed housing complexes that created livable spaces through techniques like stacked apartments with shifted footprints to allow for private terraces and pedestrian pathways and gathering spaces. One such housing development was the Asian Games Village in New Delhi from 1982 which took inspiration from traditional villages in Rajasthan through its network of streets, squares and urban morphology.
The document summarizes the vernacular architecture of Gujarat, India. It describes the traditional building styles that developed in response to the hot, dry climate and scarce resources. These include circular Bhunga houses made of mud walls and thatched roofs, which are durable and well-suited to the desert conditions. The document also outlines the settlement patterns, with curvilinear streets and rows of houses built using locally-available materials like mud, bamboo, and grass in accordance with construction techniques that provide stability despite extreme weather.
Adobe is a traditional building material made of sun-dried mud bricks composed of sand, clay, straw, and water. Adobe construction originated in 600 BC in South America and involves forming mud bricks of varying dimensions and using a mud plaster to hold them together in walls. Traditional adobe buildings are best suited to dry climates where adobe roofs made of logs and vigas can be used. While adobe construction has advantages like low costs and natural temperature regulation, it also has disadvantages like vulnerability to damage from water, wind, and earthquakes requiring regular maintenance.
The Jawahar Kala Kendra is an arts and crafts center located in Jaipur, India. The center was designed by architect Charles Correa and built between 1986-1991. It is dedicated to former Indian prime minister Jawaharlal Nehru. The center's plan is based on the original city plan of Jaipur, consisting of nine squares arranged around a central courtyard. Each square represents a different planet and is designed and programmed according to the characteristics of that planet in astrology. The complex incorporates traditional Rajasthani architectural elements and provides facilities such as galleries, workshops, and an open-air theater to showcase Indian culture and crafts.
The document provides information on basement construction, including:
1) Basements are constructed below ground level to provide additional space, act as a buoyancy raft, or reduce bearing pressure. They require retaining walls to withstand soil and water pressures.
2) There are different methods for basement construction including open cut, cut and cover, and top down. The cut and cover method uses retaining walls and bracing during excavation before basement construction.
3) Key considerations for basement design and construction include ventilation, drainage, waterproofing, and following local building codes.
architectural case study
Asian games village designed by ar. raj rewal
B.Arch 4th-year sem 7
detailed zoning
analysis and survey
concept execution
referral links
https://www.scribd.com/document/415212492/Asian-Games-Village-Final
https://portfolio.cept.ac.in/fp/from-utopias-to-heterotopias-migrant-housing-values-of-time-density-culture-and-energy-ur2005-monsoon-2019/building-blocks-of-migrant-housing-monsoon-2019-ug180076
https://www.slideshare.net/WaseemNoor3/raj-rewal-asian-games-village
https://www.archdaily.com/903782/asian-games-village-residence-iii-viueller-architects
https://rajrewal.in/portfolio/asian-games-village-1980-1982/
https://qdoc.tips/asiad-villagegrp-6-pdf-free.html
https://s3.us-east-1.amazonaws.com/media.archnet.org/system/publications/contents/2850/original/DPT0402.pdf?1384768113
https://prezi.com/zj7br3xisvu8/asiad-village/
Raj Rewal is an Indian architect born in 1934 in Hoshiarpur, India. He received his early education in India and then attended architecture schools in London and Paris in the 1950s. Notable influences on his work include Le Corbusier and traditional Indian architecture. Rewal's designs emphasize structure, materials, and climatic sensitivity. He is known for housing projects that draw from traditional Indian urban forms like narrow streets, courtyards, and roof terraces. His works include the Asian Games Village in Delhi and the National Institute of Immunology.
Le Corbusier was a pioneering modern architect known for his Five Points of Architecture and modular design system called the Modulor. Some of his most notable works include the Villa Savoye in France, the Unite d'Habitation housing blocks, and the Ahmedabad Textile Mill Owners' Association Building in India. The ATMA Building commissioned in 1954 features a dramatic entrance ramp, brise-soleil sun shades, and curving interior walls that define the auditorium space. It exemplifies Le Corbusier's principles of modern architecture through its exposed concrete structure, manipulation of interior spaces, and emphasis on visual transparency and air flow.
This document discusses different types of soils found in India and their characteristics that affect soil behavior. It also discusses different types of foundations used depending on the soil type, including pile foundations and raft foundations. The main types of soils described are alluvial, black, red, laterite, mountain, and desert soils. Key soil characteristics discussed are cohesion, internal friction, and permeability. The document also examines different pile foundation types based on function (bearing, friction, screw, etc.) and material (timber, concrete, steel). Raft foundation types including flat plate, thickened, beam-slab, and cellular foundations are also summarized.
The Aranya Community Housing project in Indore, India aimed to provide affordable housing for lower income groups through a planned, serviced site development approach. The 85 hectare site was divided into 6 sectors serving different income levels. The master plan emphasized a hierarchy of roads, open spaces, and mixed land uses to create integrated neighborhoods. Housing typologies allowed for incremental expansion over time. Core housing units provided basic facilities with flexibility for residents to customize indoor and outdoor spaces. Materials and construction methods were locally sourced and labor intensive to keep costs low.
1. The document summarizes various low-cost construction techniques for building housing, including using natural materials like stone, mud bricks, compressed earth blocks, and bamboo.
2. It describes construction methods like rat-trap bond, corbel arches, and filler slabs that reduce costs compared to standard practices.
3. The document provides details on over 15 different low-cost materials and building techniques that can be used to help provide quality, affordable housing.
study of famous housing projects by architect Charles Correa.
1. BELAPUR Housing
2. Kanchanjunga Apartments
3. Tarapur housing
Authors- Richa, Parveen n Aarti
Charles Correa was an Indian architect born in 1930 who established a private practice in Bombay in 1958. He is renowned for designing buildings that were climatically responsive and drew from local culture and vernacular architecture. Some of his notable works include the Cama Hotel in Ahmedabad (1958-59), which had a double height atrium supported on stilts, and the Kovalam Beach Resort in Kerala (1969-1974), which featured clusters of detached units arranged on a stepped terrace leading to the beach. Correa emphasized principles like open-to-sky spaces, courtyards, incremental expansion, and affordability in his residential projects such as the Belapur Housing in Mumbai (1983-1986). He
Rat Trap Bond - Advantages, Disadvantages, Construction, Purpose, Estimation ...ADNAN AHMAD
The rat trap bond is a masonry technique where bricks are laid vertically instead of horizontally to form a cavity within the wall while maintaining the same wall thickness. This technique reduces the number of bricks and amount of mortar required compared to conventional masonry bonds. Architect Laurie Baker introduced it in Kerala in the 1970s for its lower construction cost, reduced material requirements, and improved thermal efficiency over conventional masonry walls without compromising strength. The purpose is to reduce construction costs through lower brick and mortar usage and improve energy efficiency through the inner cavity.
Laurie Baker was a British-Indian architect known for his pioneering low-cost and sustainable housing designs using locally available materials. Some of his notable projects include his home in Trivandrum called The Hamlet, built in 1969 avoiding cutting trees and reusing materials. He also designed the Centre for Development Studies in Trivandrum in 1971 with structures responding to the sloping terrain and preserving trees. His designs prioritized cost-effectiveness, environmental friendliness, and vernacular styles.
This document provides an overview of various earth construction techniques. It begins by explaining that earth structures are made primarily from soil and may include additives like straw or cement to add strength. Common earth building materials include mud, cob, adobe bricks, rammed earth, and compressed earth blocks.
The document then discusses soil composition and types, explaining that clay, silt, sand and gravel can be used alone or combined in earth construction. It provides details on testing soil properties through methods like the biscuit test. Stabilizers like lime, cement or plant fibers can be added to improve soil suitability.
Construction techniques covered include mud construction, cob building, adobe brick making, wattle and daub,
This document discusses mud as a building material. It provides details on different types of soils and tests to determine their suitability for construction. Various traditional earth building techniques are described such as cob, rammed earth, adobe and wattle and daub. Stabilizers that can improve soil properties for building are also outlined.
Charles Correa was an Indian architect known for his sensitivity to the needs of the urban poor. He developed master plans for cities like Navi Mumbai that focused on decentralization into self-sufficient townships with residential neighborhoods organized by income level. At the micro level, his designs for low-income housing emphasized open-to-sky spaces, courtyards, and terraces to accommodate community needs within a limited footprint. His works show an adaptation of modernism to local culture through vernacular influences like tiled roofs, brick walls, and operable wooden louvers.
The document discusses vernacular architecture, which refers to traditional construction methods used by local builders without professional architects. It focuses on vernacular architecture in hill regions of India, describing characteristics like use of local materials, load-bearing structures, small openings, and sloping roofs. Specific examples from Himachal Pradesh, Kashmir, and Ladakh are provided, including construction techniques like dhajji walls and materials used like wood, stone, and mud. The importance of studying vernacular architecture for disaster recovery and sustainable design is also noted.
In this era of concrete, let's understand the impact on the environment and revive the old technique, construction and make the environment pollution-free.
Raj Rewal was an Indian architect known for his approach called "critical regionalism" which emphasized local topography, climate, and traditions rather than scenography. Some of Rewal's notable works that exemplified this approach included the State Trading Corporation Tower in New Delhi which used a structural concept as the basis for its architectural form. Rewal also designed housing complexes that created livable spaces through techniques like stacked apartments with shifted footprints to allow for private terraces and pedestrian pathways and gathering spaces. One such housing development was the Asian Games Village in New Delhi from 1982 which took inspiration from traditional villages in Rajasthan through its network of streets, squares and urban morphology.
The document summarizes the vernacular architecture of Gujarat, India. It describes the traditional building styles that developed in response to the hot, dry climate and scarce resources. These include circular Bhunga houses made of mud walls and thatched roofs, which are durable and well-suited to the desert conditions. The document also outlines the settlement patterns, with curvilinear streets and rows of houses built using locally-available materials like mud, bamboo, and grass in accordance with construction techniques that provide stability despite extreme weather.
Adobe is a traditional building material made of sun-dried mud bricks composed of sand, clay, straw, and water. Adobe construction originated in 600 BC in South America and involves forming mud bricks of varying dimensions and using a mud plaster to hold them together in walls. Traditional adobe buildings are best suited to dry climates where adobe roofs made of logs and vigas can be used. While adobe construction has advantages like low costs and natural temperature regulation, it also has disadvantages like vulnerability to damage from water, wind, and earthquakes requiring regular maintenance.
The Jawahar Kala Kendra is an arts and crafts center located in Jaipur, India. The center was designed by architect Charles Correa and built between 1986-1991. It is dedicated to former Indian prime minister Jawaharlal Nehru. The center's plan is based on the original city plan of Jaipur, consisting of nine squares arranged around a central courtyard. Each square represents a different planet and is designed and programmed according to the characteristics of that planet in astrology. The complex incorporates traditional Rajasthani architectural elements and provides facilities such as galleries, workshops, and an open-air theater to showcase Indian culture and crafts.
The document provides information on basement construction, including:
1) Basements are constructed below ground level to provide additional space, act as a buoyancy raft, or reduce bearing pressure. They require retaining walls to withstand soil and water pressures.
2) There are different methods for basement construction including open cut, cut and cover, and top down. The cut and cover method uses retaining walls and bracing during excavation before basement construction.
3) Key considerations for basement design and construction include ventilation, drainage, waterproofing, and following local building codes.
architectural case study
Asian games village designed by ar. raj rewal
B.Arch 4th-year sem 7
detailed zoning
analysis and survey
concept execution
referral links
https://www.scribd.com/document/415212492/Asian-Games-Village-Final
https://portfolio.cept.ac.in/fp/from-utopias-to-heterotopias-migrant-housing-values-of-time-density-culture-and-energy-ur2005-monsoon-2019/building-blocks-of-migrant-housing-monsoon-2019-ug180076
https://www.slideshare.net/WaseemNoor3/raj-rewal-asian-games-village
https://www.archdaily.com/903782/asian-games-village-residence-iii-viueller-architects
https://rajrewal.in/portfolio/asian-games-village-1980-1982/
https://qdoc.tips/asiad-villagegrp-6-pdf-free.html
https://s3.us-east-1.amazonaws.com/media.archnet.org/system/publications/contents/2850/original/DPT0402.pdf?1384768113
https://prezi.com/zj7br3xisvu8/asiad-village/
Raj Rewal is an Indian architect born in 1934 in Hoshiarpur, India. He received his early education in India and then attended architecture schools in London and Paris in the 1950s. Notable influences on his work include Le Corbusier and traditional Indian architecture. Rewal's designs emphasize structure, materials, and climatic sensitivity. He is known for housing projects that draw from traditional Indian urban forms like narrow streets, courtyards, and roof terraces. His works include the Asian Games Village in Delhi and the National Institute of Immunology.
Le Corbusier was a pioneering modern architect known for his Five Points of Architecture and modular design system called the Modulor. Some of his most notable works include the Villa Savoye in France, the Unite d'Habitation housing blocks, and the Ahmedabad Textile Mill Owners' Association Building in India. The ATMA Building commissioned in 1954 features a dramatic entrance ramp, brise-soleil sun shades, and curving interior walls that define the auditorium space. It exemplifies Le Corbusier's principles of modern architecture through its exposed concrete structure, manipulation of interior spaces, and emphasis on visual transparency and air flow.
This document discusses different types of soils found in India and their characteristics that affect soil behavior. It also discusses different types of foundations used depending on the soil type, including pile foundations and raft foundations. The main types of soils described are alluvial, black, red, laterite, mountain, and desert soils. Key soil characteristics discussed are cohesion, internal friction, and permeability. The document also examines different pile foundation types based on function (bearing, friction, screw, etc.) and material (timber, concrete, steel). Raft foundation types including flat plate, thickened, beam-slab, and cellular foundations are also summarized.
The Aranya Community Housing project in Indore, India aimed to provide affordable housing for lower income groups through a planned, serviced site development approach. The 85 hectare site was divided into 6 sectors serving different income levels. The master plan emphasized a hierarchy of roads, open spaces, and mixed land uses to create integrated neighborhoods. Housing typologies allowed for incremental expansion over time. Core housing units provided basic facilities with flexibility for residents to customize indoor and outdoor spaces. Materials and construction methods were locally sourced and labor intensive to keep costs low.
1. The document summarizes various low-cost construction techniques for building housing, including using natural materials like stone, mud bricks, compressed earth blocks, and bamboo.
2. It describes construction methods like rat-trap bond, corbel arches, and filler slabs that reduce costs compared to standard practices.
3. The document provides details on over 15 different low-cost materials and building techniques that can be used to help provide quality, affordable housing.
study of famous housing projects by architect Charles Correa.
1. BELAPUR Housing
2. Kanchanjunga Apartments
3. Tarapur housing
Authors- Richa, Parveen n Aarti
Charles Correa was an Indian architect born in 1930 who established a private practice in Bombay in 1958. He is renowned for designing buildings that were climatically responsive and drew from local culture and vernacular architecture. Some of his notable works include the Cama Hotel in Ahmedabad (1958-59), which had a double height atrium supported on stilts, and the Kovalam Beach Resort in Kerala (1969-1974), which featured clusters of detached units arranged on a stepped terrace leading to the beach. Correa emphasized principles like open-to-sky spaces, courtyards, incremental expansion, and affordability in his residential projects such as the Belapur Housing in Mumbai (1983-1986). He
Rat Trap Bond - Advantages, Disadvantages, Construction, Purpose, Estimation ...ADNAN AHMAD
The rat trap bond is a masonry technique where bricks are laid vertically instead of horizontally to form a cavity within the wall while maintaining the same wall thickness. This technique reduces the number of bricks and amount of mortar required compared to conventional masonry bonds. Architect Laurie Baker introduced it in Kerala in the 1970s for its lower construction cost, reduced material requirements, and improved thermal efficiency over conventional masonry walls without compromising strength. The purpose is to reduce construction costs through lower brick and mortar usage and improve energy efficiency through the inner cavity.
Laurie Baker was a British-Indian architect known for his pioneering low-cost and sustainable housing designs using locally available materials. Some of his notable projects include his home in Trivandrum called The Hamlet, built in 1969 avoiding cutting trees and reusing materials. He also designed the Centre for Development Studies in Trivandrum in 1971 with structures responding to the sloping terrain and preserving trees. His designs prioritized cost-effectiveness, environmental friendliness, and vernacular styles.
This document provides an overview of various earth construction techniques. It begins by explaining that earth structures are made primarily from soil and may include additives like straw or cement to add strength. Common earth building materials include mud, cob, adobe bricks, rammed earth, and compressed earth blocks.
The document then discusses soil composition and types, explaining that clay, silt, sand and gravel can be used alone or combined in earth construction. It provides details on testing soil properties through methods like the biscuit test. Stabilizers like lime, cement or plant fibers can be added to improve soil suitability.
Construction techniques covered include mud construction, cob building, adobe brick making, wattle and daub,
This document discusses mud as a building material. It provides details on different types of soils and tests to determine their suitability for construction. Various traditional earth building techniques are described such as cob, rammed earth, adobe and wattle and daub. Stabilizers that can improve soil properties for building are also outlined.
Fundamentals of Soil Science, Types of soils, Principles of Soil Stabilization, Characteristics of
core, Types of Stabilizers, Requirements and Types of mudwall building and surface protection.
The document discusses compressed stabilized earth blocks (CSEB). It describes CSEBs as building materials made from a mix of soil, stabilizer, and water that is compressed and dried. The document then discusses the history and development of CSEBs. It notes the various benefits of CSEBs, including being a local material, limiting deforestation, cost efficiency, and social acceptance. Some limitations are also outlined. The document focuses on the raw materials used for CSEBs, particularly different types of soil - black cotton soil, gravely soil, sandy soil, silty soil, and clayey soil - and their characteristics.
Soil compaction increases the density of soil through mechanical means. It is an important part of construction projects to increase load bearing capacity and prevent settlement. There are different types of compaction including vibration, impact, kneading and pressure. Proper soil compaction requires understanding soil type and moisture content, as this impacts the maximum achievable density. Density tests such as the Proctor test are used to determine if compaction specifications are met.
This document provides information on mortars used in construction. It defines mortar as a mixture of sand, cement and water that is used as a binding agent between bricks or blocks. It discusses the requirements for a good mortar mix, including workability, strength, bond strength and durability. It also covers the different materials used in mortar such as sand, cement and additives. Mix proportions, water-cement ratios and methods of mixing mortar are also outlined.
Stabilized mud block (SMB) or pressed earth block is a building material made primarily from damp soil compressed at high pressure to form blocks. If the blocks are stabilized with a chemical binder such as Portland cement they are called compressed stabilized earth block (CSEB) or stabilized earth block (SEB).
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This document provides information on mortars used for brick wall construction. It discusses the typical materials in mortar mixes including sand, cement, water and additives. It describes requirements for good mortar such as workability and strength. Different types of cement and sand are outlined. Guidelines for mixing mortar by hand or machine and transporting pre-mixed mortar are also provided.
This document describes several field tests used to identify soil types:
- Visual examination can distinguish gravel, sand, silt, and clay by drying and separating soil components. Silt and clay particles cannot be separated without magnification.
- The sedimentation test involves shaking soil in water to observe how long different particle sizes take to settle, allowing estimation of gravel, sand, silt, and clay percentages.
- Plasticity and strength tests provide information about soil texture and cohesiveness by attempting to roll moist soil into threads or break dried soil patties by hand. The results can indicate clay, silt, or sand-dominated soils.
The document provides instructions for preparing soil in a raised bed garden. It discusses evaluating the existing soil type, which can be sandy loam, clay loam or loam. It also describes adding organic matter like compost or manure to improve soil structure and nutrient content. A key recommendation is to turn over the existing soil, break up any clumps, and thoroughly mix in amendments to create a friable soil suitable for growing vegetables.
This document discusses the process of manufacturing bricks which includes 4 main steps: 1) Preparation of clay or brick earth which involves selecting raw materials, removing impurities from soil, weathering and blending the clay. 2) Moulding of bricks which can be done by hand or machine to give the clay its shape. 3) Drying of bricks which can be done naturally by exposing them to air and sun or artificially in controlled drying chambers. 4) Burning of bricks which hardens them and is done either in open air clamp structures or controlled kilns at high temperatures.
The document discusses the preparation of a cricket pitch. It begins by noting a cricket pitch should be dry, firm, and provide even bounce. It then outlines the steps to prepare a new pitch, including:
1. Digging out an area 100ft long and 10ft wide to a depth of 3ft.
2. Laying down layers of ballast stone, bricks, charcoal, and various soil mixtures to create a firm foundation for grass growth.
3. Seeding the pitch with wet grass and maintaining it with regular watering and light rolling over 6 weeks until the grass is 4-6 inches high and the pitch is firm.
MANY OF THEM COME ACROSS MANY TILES BUT MIGHT NOT KNOW THE REAL USE OF IT OR HOW IT CAN BE USED IN MANY WAYS.THIS PPT CONTAINS INFORMATION ABOUT THE PARTICULAR TILE KNOWN AS PORCELAIN.NOT MANY OF THEM COME ACROSS THIS SO EVENTUALLY IT LEADS TO NO KNOWLEDGE ABOUT THE TILES WHICH CAN USED EFFICIENTLY.I HOPE THIS PPT MIGHT BECOME USEFUL FOR MANY. THANKYOU .
Mortar is a mixture of binding material, fine aggregate like sand, and water that is used for masonry work, plastering and pointing. It binds together bricks, stones or concrete to form a strong, durable structure. Mortar comes in different types for various uses - cement mortar for high strength applications, lime mortar above ground, lightweight mortar with fibers, fire resistant mortar, and mud mortar for rural buildings. Sand and surkhi are added to mortar to reduce cracking and provide strength, density and color.
Green building material - Compressed earth blockAditya Shah
A compressed earth block (CEB), also known as a pressed earth block or a compressed soil block, is a building material made primarily from damp soil compressed at high pressure to form blocks.
Soil cement is a construction material made by mixing soil, cement, and water. It has good compressive and shear strength but low tensile strength. Soil cement is used for road construction, pipe bedding, and slope protection. Laboratory tests determine the optimal cement content, compaction, and water requirements for the soil. Soil cement roads are constructed by spreading and mixing the soil cement then compacting it. The hardened soil cement forms a rigid material that distributes loads effectively.
Sand is a naturally occurring granular material composed of finely divided rock and mineral particles. The most common constituent is silica. Sand is classified based on its formation, composition, and grain size. The main natural sources are pit sand, river sand, and sea sand. Artificial sources include recycled sand and crushed stones. Good sand is clean, coarse, chemically inert, and well graded. It is used widely in construction for mortar, concrete, and plastering. The composition and properties of sand determine its suitability for different construction applications.
This document discusses mortars and plasters used in building construction. It defines mortars as mixtures used for joining bricks and stones, typically consisting of aggregates like sand and a binding material like lime or cement. It describes the different types of traditional mortars used in ancient structures like the pyramids of Egypt. It also outlines the key functions, properties, classifications, and uses of mortars and plasters. The document provides details on the preparation and curing of different types of mortars like lime, cement, and gauged mortars. It concludes with a section on sand and its classification according to origin and composition.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.
Walmart Business+ and Spark Good for Nonprofits.pdfTechSoup
"Learn about all the ways Walmart supports nonprofit organizations.
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Main Java[All of the Base Concepts}.docxadhitya5119
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
How to Fix the Import Error in the Odoo 17Celine George
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
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4. SOIL SOURCE
•Mud required for building can be taken from the plot itself.
•The soil is collected after depth of 60cms only.
•As the top layer is full of organic matter, it isn’t used.
•Below it is sand and clay which are dug out in heaps.
•Do not use hard rock.
•Soil to be used should be devoid of organic matter.
•Top should be replaced after excavating.
SOIL TYPE
• Gravel: Small pieces of stone varying from the size of a pea to that of an egg.
• Sand: Similar small pieces of stone (usually quartz), which are small but each grain, is visible to
the eye.
• Silt: The same as sand except that it is so fine that you cannot see individual grains.
• Clay: Soils that stick when wet - but very hard when completely dry.
• Organic Soil: Soil mainly composed of rotting, decomposing organic matters such as leaves,
plants and vegetable matter. It is spongy when wet, usually smells of decaying matter, is dark in
color and usually damp.
SOIL USABILITY
• Gravel: alone is of no use for mud wall building - the tiny lumps of stone have nothing to bind
them together.
• Sand: similar to gravel, it is of no use for wall making by itself - but if mixed with clay, it is the
ideal mud wall building soil.
• Silt: by itself is also no good for building walls. It will hold together but is not strong.
Furthermore, it will not compact so it is also of no use for pressed blocks or rammed earthwork.
• Clay: can be rammed or compressed but in drying out they often shrink. During the monsoon
they get damp and expand again and crack form.
• Organic Soils: are mainly useless for wall building. 4
5. TESTS
There are two kinds of tests:
Field tests
• Colour tests
• Touch and smell test
• Biscuit test
• Hand wash test
• Cigar test
• Adhesion test
Lab tests
• Sieve test
• Sedimentation test
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6. COLOUR TEST
Procedure
• Observe the colour of soil.
Interpretation
• Deep yellow, orange and red, ranging to deep browns indicate iron content which is good
as building mud.
• Greyish or dull brown, ranging to dirty white indicates more clay.
• Dull brown with slightly greenish colour indicates organic soil.
TOUCH & SMELL
Procedure
• Rub small quantity of dry soil on palm to feel its texture.
• Moisten the soil and rub again.
Interpretation
• Soil that feels course when dry but sticky when wet contains lumps of clay.
• Soil that feels course when dry but gritty when wet contains sand.
• Soil that feels course when dry but little gritty when wet contains silt.
• If the wet soil gives off musty smell then it contains organic matter.
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7. BISCUIT TEST
Procedure
• Make a smooth paste from the soil removing all gravels.
• Mould it into a biscuit of 3cm diameter and 1cm height.
• Leave it to dry and observer for shrinkages or cracks.
• Break the biscuit to noting how hard it is.
Interpretation
• If biscuit cracks or leaves gap from the mould then it contains more clay.
• If its very hard to break then soil contains more clay.
• If it breaks easily and can be crumpled between finger then it has good sand-clay proportion.
• If breaks and reduce to powder then the soil has more sand or silt.
HAND WASH TEST
Procedure
• Play with wet soil till your hands get thoroughly dirty.
• Wash your hands to see how difficult it is to clean.
Interpretation
• If hands get cleaned quickly, then soil contains more sand.
• If it takes little time to clean and feels like flour then soil contains more silt.
• If it feels soapy or slippery and takes time to clean then soil contains more clay.
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8. CIGAR TEST
Procedure
• Make a smooth paste from the soil removing all gravels.
• Roll it on palm to make a cigar.
• Slowly push it outside your palm.
• Measure the length at which it breaks.
Interpretation
• Length below 5cm - too much sand.
• Length above 15cm - too much clay.
• Length between 5cm to 15cm - good mixture of sand and clay.
ADHESION TEST
Procedure
• Make ball out of wet soil.
• Pierce a knife into it and remove.
• Observer the knife after removing.
Interpretation
• If little soil sticks on the knife then it has more silt.
• If lot of soil sticks on the knife then it has more clay.
• If the knife is clean after removal than the soil has more sand.
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9. SIEVE TEST
Procedure
• Pass soil from series of standard sieves set on top of on another with finest sieve at
bottom.
• Observer the soil collected in each sieve.
Interpretation
• Silt will be collected in lowermost sieve.
• Gravels will be collected on top.
• Sand and lumps of clay will be collected in intermediate sieves.
SEDIMENTATION TEST
Procedure
• Take a transparent cylindrical bottle or jar of 1Lt. Capacity.
• Fill it with ¼ soil and ¾ water.
• Shake well and allow it to settle for 30 min.
Interpretation
• Coarse gravels will be settled at bottom, followed by sand, silt and clay on top.
• Measuring the layers will give us the approximate proportions of each content.
9
10. STABILISERS
When the available soil is not suitable enough for construction then the soil can be used by manipulating
its composition by adding suitable stabilizers.
• Stabilizing enhances the given property of the soil type.
• Increase Tensile and Shear strength.
• Reduce shrinkage.
Most common and effective stabilizer is Soil itself.
Cement, is the best example of a modern contemporary stabilizer.
Various other indigenous stabilizers include
• Straw
• Plant Juices
• Gum Arabic
• Sugar Or Molasses
• Cow Dung
• Animal Urine
• Tannic Acid
• Oil
10
11. Soil suitability and stabilization for CSEB
• A soil contains four components: gravel, sand, silt and clay. In concrete, the binder of gravel and
sand is cement.
• In a soil, the binder is silt & clay. But silt and clay are not stable in water. Thus, the aim of
stabilization is to stabilize silt and clay against water, so as to give lasting properties with the
minimum of maintenance.
• Topsoil and organic soils must not be used. Identifying the properties of a soil is essential to create,
at the end, good quality products. Not every soil is suitable for earth construction and CSEB in
particular.
• But with some knowledge and experience many soils can be used for producing CSEB.
Good soil Gravel 15 % Sand 50 % Silt 15 % Clay 20 %
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12. ADVANTAGES OF CSEB
A local material
• Ideally, production is made on the site itself or in the nearby area. Thus, it will save transportation,
fuel, time and money.
Limiting deforestation
• Firewood is not needed to produce CSEB. This will save forests, which are being depleted quickly in
the world, due to short view developments and mismanagement of resources
Energy efficiency and eco friendliness
• Requiring only a little stabilizer the embodied energy in a m3 can be from 5 to 15 times less than a m³
of fired bricks.
• The pollution emission will also be 2.4 to 7.8 times less than fired bricks.
Flexible production scale
• Equipment for CSEB is available from manual to motorized tools ranging from village to semi industry
scale.
• The selection of the equipment is crucial, but once done properly, it will be easy to use the best
adapted equipment for each case.
Social acceptance
• Demonstrated, since long, CSEB can adapt itself to various needs, from poor income groups to well
off people or government needs. Its quality, regularity
• and style allow a wide range of final house products.
• To facilitate this acceptance, banish from your language “stabilized mud blocks”, when speaking of
CSEB.
• Often people associate in their minds the name mud with poor building material.
12
13. DISADVANTAGES OF CSEB
• Proper soil identification is required or lack of soil.
• Unawareness of the need to manage resources.
• Ignorance of the basics for production & use.
• Wide spans, high & long buildings are difficult to do.
• Low technical performance compared to concrete.
• Untrained teams producing bad quality products.
• Over-stabilization through fear or ignorance, implying outrageous costs.
• Under-stabilization resulting in low quality products.
• Bad quality or un-adapted production equipment.
• Low social acceptance due to counter examples (by unskilled people, or bad soil & equipment).
13
17. • The Nubian technique traditionally needs a back wall to stick the blocks onto.
• The vault was built arch after arch and therefore the courses were laid almost vertically.
• The binder, about 1-1.5 cm thick, was the silty-clayey soil from the Nile and the blocks used were adobes, the sun
dried bricks.
• The unevenness of the adobes made it necessary to slightly incline the courses, so as to increase the adhesion by
force of gravity.
• This technique has the advantage of allowing one to build vaults and domes without centring.
• This technique with vertical courses has a major disadvantage, which is that the earth glue is very liquid and the
blocks are very thin.
• Therefore the shrinkage of the glue is important and it induces cracks, especially in vaults.
Limit of stability of the horizontal courses
NUBIAN DOME
17
18. • When compressed stabilised earth blocks are used to build vaults using this technique, the course can be
absolutely vertical as it is not needed any more to incline the courses for the adhesion.
• The vault, being built with horizontal courses, rises like a corbel which is curved and has courses inclined at the
same angle as the radius of the curve.
• The 6m span semicircular vault cannot be built horizontally anymore, as no force can balance the gravity forces.
• The construction has to go on with vertical courses.
18
19. “Guna” in Telugu, is a tapering, burnt clay pipe. The familiar semi-cylindrical
pan tiles are obtained by splitting such pipes vertically into two.
These “Guna” tapering pipes can be socketed into one another forming an arch over a suitably curved shuttering.
A series of such arches make a barrel vault capable of withstanding considerable loads – upto 1 ton/m2.
The top of the roof is given a plaster finish. After joints are filled and topped with plaster, the roof becomes rigid
and waterproof, doing totally without steel or timber.
The cost of this roof works out to Rs. 20/sq.ft. It has the following advantages:
• Air inside the hollow-tiled roof protects from heat and cold. A 10o temperature difference
is observed in slab roof and guna vault roof.
• It has no under structure, yet can bear weight of 1000 kg/m2.
• It is fabricated and ready for use within 3 days.
• Requires no maintenance and has life span of more than 50 years.
• It is not affected by rain, hail or wind.
• Being light in weight (less than 12 kg/sq.ft). the vault roof is safe even in earthquakes.
• Even if the mud walls collapse, the roof remains intact residing on pillars and beams.
GUNA VAULT ROOF
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20. • After construction of brick pillars, ring beams and gable walls, the M.S. trusses are placed in position above the
opposite pillars held with guy ropes and timber poles.
• Now GI pipes (12 mm dia., 10 nos.) are placed on the trusses in the MS rings provided at specific points. They
are supported by gable walls at both ends.
• Guna pipes are now laid dry on this skeleton shuttering in a plug-socket manner, completing the roof ring by
ring.
• Lime/cement mortar is now poured on the roof, trowelling it into the gaps and leaving the top rough to receive
the finishing coat.
• Care is taken to remove the skeleton support within 12 hours to allow natural setting.
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