Dampness occurs in buildings mainly due to condensation or water penetration from outside. It can cause damage to structures and health issues for occupants. Damp proof courses made of materials like concrete, bitumen, or plastic sheeting are used to prevent rising damp from the ground. The appropriate material depends on factors like climate, structure, and location. Common installation methods include using a cement concrete damp proof course at the plinth level and flexible materials like felt for floors or roofs. Proper installation techniques help ensure a continuous barrier against moisture.
are horizontal elements of building structures which divide building into different levels for the purpose of creating more accommodation with in the restricted space, one above the other and also provide support to the occupants, furniture and equipment of a building.
are horizontal elements of building structures which divide building into different levels for the purpose of creating more accommodation with in the restricted space, one above the other and also provide support to the occupants, furniture and equipment of a building.
A floor is the lowest acceptable limit as restricted by controlling parties, usually involved in the management of corporations. Floors can be established for a number of factors, including...
Floor an its types ppt
When we are constructing homes we don't even know how many types of flooring are there. If you want to know about it then watch the slides. To know more about it go through this link( https://blog.builtify.in/2019/07/11-best-suited-flooring-types-for-Indian-home-builtify.html )
Wood is one of the most used natural building materials in the world. A number of valuable properties such as low heat conductivity, small bulk density, relatively high strength, amenability to mechanical working etc. makes wood as famous building material.
Timber can be used in most economical way without wasting any of the derivative of it. Even the saw dust obtained during wood sawing can also be used to make fiber boards, paper etc.
In this article, we are going to discuss about the Classification and structure of tree and also about the Processing of timber from felling of tree to preservation of timber.
A floor is the lowest acceptable limit as restricted by controlling parties, usually involved in the management of corporations. Floors can be established for a number of factors, including...
Floor an its types ppt
When we are constructing homes we don't even know how many types of flooring are there. If you want to know about it then watch the slides. To know more about it go through this link( https://blog.builtify.in/2019/07/11-best-suited-flooring-types-for-Indian-home-builtify.html )
Wood is one of the most used natural building materials in the world. A number of valuable properties such as low heat conductivity, small bulk density, relatively high strength, amenability to mechanical working etc. makes wood as famous building material.
Timber can be used in most economical way without wasting any of the derivative of it. Even the saw dust obtained during wood sawing can also be used to make fiber boards, paper etc.
In this article, we are going to discuss about the Classification and structure of tree and also about the Processing of timber from felling of tree to preservation of timber.
Waterproofing describes making an object waterproof or water-resistant.
Building water-proofing is a process which is designed to prevent water from penetrating a building.
Usually extensive waterproofing measures are added to a building at the time of construction, to provide moisture control from the start
Waterproofing may also be done after a building is built, to address problems as they emerge or as part of a building retrofit
Internal areas that are waterproofed include :
bathrooms,
shower recesses,
laundries
toilets.
Special Treatments required for building constructionUjasPandya2
various special treatments like termite treatments, damp proofing, fire protections, acoustics etc required in building construction in civil engineering. Essential treatments before and after construction of residential as well as public buildings. Services essential for building construction for maintenance and long life of building
This presentation takes you through the various theoretical aspects of FLOORS. This comprehensive presentation has self explanatory diagrams which are very easy to comprehend.
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
CW RADAR, FMCW RADAR, FMCW ALTIMETER, AND THEIR PARAMETERSveerababupersonal22
It consists of cw radar and fmcw radar ,range measurement,if amplifier and fmcw altimeterThe CW radar operates using continuous wave transmission, while the FMCW radar employs frequency-modulated continuous wave technology. Range measurement is a crucial aspect of radar systems, providing information about the distance to a target. The IF amplifier plays a key role in signal processing, amplifying intermediate frequency signals for further analysis. The FMCW altimeter utilizes frequency-modulated continuous wave technology to accurately measure altitude above a reference point.
CW RADAR, FMCW RADAR, FMCW ALTIMETER, AND THEIR PARAMETERS
DPC (Damp Proof Course).pptx
1. Dampness
Dampness is the presence of unwanted moisture in the structure of a residential or commercial building, it occurs
mainly in old buildings, either the result of water overrunning from outside or condensation from within the
structure.
A high percentage of damp issues in buildings are caused by condensation, rain penetration or rising damp
Causes of dampness in buildings
• Rain penetration
• Level of site
• Drainability of soil
• Climate condition
• Defective orientation of building
• Moisture entrapped during construction
• Defective construction joints
2. Effects of dampness in buildings:
• Causes rotting of wood.
• Causes corrosion of metallic fixtures.
• Deteriorate electric installations.
• Deteriorate carpet & furniture’s.
• Causes spots on the floors and walls.
• Causes petting off and removal of plaster.
• Causes bleaching and blistering of paints.
• Causes effloresce.
• Dangerous for the health of occupants. (Asthma) to growth of microbes such as molds, fungi and bacteria
• Reduce the life of structures
3. Method of preventing dampness
Damp Proof Course or DPC is the protective layer applied to prevent the rising of moisture to the walls from
the ground due to capillary action.
• It is usually 2.5 cm thick with a ratio of rich cement concrete 1:1.5:3 or 2 cm thick with cement mortar 1:2
mixed with standard waterproofing material.
• It is provided from the plinth level to the entire width of the plinth wall, and the quantities are calculated in
square meters (length x breadth).
• Usually, DPC is not provided at the sills of doors and verandah openings, for which deductions are made.
• In most cases, 1 kg of cem-seal, Impermo, or another definitive waterproofing compound is used per bag of
cement.
4. Materials for Damp Proof Course (DPC)
The choice of material to function as an effective damp proof course requires a judicious selection. It depends
upon the climate and atmospheric conditions, nature of structure and the situation where DPC is to be provided.
Properties of Materials for DPC :
An effective damp proofing material should have the following properties;
• It should be impervious.
• It should be strong and durable, and should be capable of withstanding both dead as well as live loads without damage.
• It should be dimensionally stable.
• It should be free from deliquescent salts like sulphates, chlorides and nitrates.
The materials commonly used to check dampness can be divided into the following three categories:
1. Flexible Materials: Materials like bitumen felts (which may be hessian based or fiber/glass fiber based), plastic sheeting
(polythene sheets) etc.
2. Semi-rigid Materials: Materials like mastic, asphalt, or combination of materials or layers.
3. Rigid Materials: Materials like first class bricks, stones, slate, cement concrete etc.
5.
6.
7. Selection of Materials for Damp Proof Course in Buildings
The choice of material to function as an effective damp proof course requires a judicious selection. It depends
upon the climate and atmospheric conditions, nature of structure and the situation where DPC is to be provided.
1. DPC above ground level
• For DPC above ground level with wall thickness generally not exceeding 40
cm, any one of the type of materials mentioned earlier may be used.
• Cement concrete is however commonly adopted material for DPC at plinth
level, 38 to 50mm thick layer of cement concrete M15 (1:2:4 mix) serves
the purpose under normal conditions.
• In case of damp and humid atmosphere, richer mix of concrete should be
used. The concrete is further made dense by adding water proofing
materials like Pudlo, Impermo, Waterlock etc. in its ingredients during the
process of mixing. It is used to apply two coats of hot bitumen over the third
surface of the concrete DPC.
8. 2. DPC Material for floors, roofs etc.
• For greater wall thickness or where DPC is to be laid over large areas such as floors, roofs, etc., the choice is limited to flexible
materials which provide lesser number of joints like mastic, asphalt, bitumen felts, plastic sheets etc.
• The felts (soft cloth type material) when used should be properly bonded to the surface with bitumen and laid with joints
properly lapped and sealed.
• Dampness in floors rises through floor slabs and affects walls and timber furniture in the building thus it is necessary
to install a damp-proof membrane on top of a concrete slab to protect the moisture-sensitive floors.
• Applications of various types of membranes on concrete floors are often carried out, as installation is easy and
effective.
9. Methods of Damp Proof Course Installation in Construction
General principles to be observed while laying damp proof course are:
i. The DPC should cover full thickness of walls excluding rendering.
ii. The mortar bed upon which the DPC is to be laid should be made level, even and free from projections. Uneven
base is likely to cause damage to DPC.
iii. When a horizontal DPC is to be continued up a vertical face a cement concrete fillet 75mm in radius should be
provided at the junction prior to the treatment.
iv. Each DPC should be placed in correct relation to other DPC so as to ensure complete and continuous barrier to
the passage of water from floors, walls or roof.