This document discusses various methods of damp proofing buildings to prevent damage from moisture. It describes different materials that can be used for damp proof courses (DPC) like bitumen felts, mastic, and concrete. Methods are grouped into treatments for foundations, basements, floors, walls, roofs, and pitched roofs. Key steps include installing DPCs, drainage, waterproof plasters and membranes, and properly sloping surfaces to prevent water accumulation. Maintaining continuity of DPCs and properly detailing features like parapets is also important for effective damp proofing.
Doors,Windows & Ventilator in Building ConstructionEr.Karan Chauhan
Doors, Windows & Ventilator is a part of building component which is allow to Air & light move & circulate inward & outward, with in door Human or any other material can be move inside or outside also. here types of doors & windows & ventilation are given with necessity of location, function etc.
Definition,
functions,
types of foundations,
foundation loads,
selection criteria for foundations based on soil conditions,
bearing capacity of soil,
methods of testing,
method of improving bearing capacity of soil,
settlement of foundations,
precautions against settlement,
shallow and deep foundations,
different types of foundations – wall footing (strip footing), isolated footing, combined footing, raft foundation, pile foundation etc.
Doors,Windows & Ventilator in Building ConstructionEr.Karan Chauhan
Doors, Windows & Ventilator is a part of building component which is allow to Air & light move & circulate inward & outward, with in door Human or any other material can be move inside or outside also. here types of doors & windows & ventilation are given with necessity of location, function etc.
Definition,
functions,
types of foundations,
foundation loads,
selection criteria for foundations based on soil conditions,
bearing capacity of soil,
methods of testing,
method of improving bearing capacity of soil,
settlement of foundations,
precautions against settlement,
shallow and deep foundations,
different types of foundations – wall footing (strip footing), isolated footing, combined footing, raft foundation, pile foundation etc.
Introduction;
Reinforced brick masonry (RBM) consists of brick masonry which incorporates steel reinforcement embedded in mortar.
This masonry has greatly increased resistance to forces that produce tensile and shear stresses.
The reinforcement provides additional tensile strength, allowing better use of brick masonry's inherent compressive strength.
The two materials complement each other, resulting in an excellent structural material.
HISTORY;
Brick masonry is one of the oldest forms of building construction, and reinforcement has been used to strengthen masonry since 1813.
...
In plumbing, a trap is a device which has a shape that uses a bending path to capture water to prevent sewer gases from entering buildings. this will helps you to find info. about traps.
An introduction to Arches:-- It explains the basic understanding about Arches before students start drafting in their drawing sheets. This presentation could be shown to first year B.Architecture students to make them a clear idea about Arches.
STONE -As A Building Material.
Stones have been considered as one of the popular building material from the olden days due to their availability in abundance from the natural rocks. Building stones should possess enough strength and durability.
The stones which are suitable for the construction of the structures such as retaining walls, abutments, dams, barrages, roads etc are known as building stones.
Joints are easy to maintain and are less detrimental than uncontrolled or uneven cracks. Concrete expands & shrinks with variations in moisture and temp. The overall affinity is to shrink and this can cause cracking at an early age. Uneven cracks are unpleasant and difficult to maintain but usually do not affect the integrity of concrete.
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types of concrete expansion joints
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Introduction;
Reinforced brick masonry (RBM) consists of brick masonry which incorporates steel reinforcement embedded in mortar.
This masonry has greatly increased resistance to forces that produce tensile and shear stresses.
The reinforcement provides additional tensile strength, allowing better use of brick masonry's inherent compressive strength.
The two materials complement each other, resulting in an excellent structural material.
HISTORY;
Brick masonry is one of the oldest forms of building construction, and reinforcement has been used to strengthen masonry since 1813.
...
In plumbing, a trap is a device which has a shape that uses a bending path to capture water to prevent sewer gases from entering buildings. this will helps you to find info. about traps.
An introduction to Arches:-- It explains the basic understanding about Arches before students start drafting in their drawing sheets. This presentation could be shown to first year B.Architecture students to make them a clear idea about Arches.
STONE -As A Building Material.
Stones have been considered as one of the popular building material from the olden days due to their availability in abundance from the natural rocks. Building stones should possess enough strength and durability.
The stones which are suitable for the construction of the structures such as retaining walls, abutments, dams, barrages, roads etc are known as building stones.
Joints are easy to maintain and are less detrimental than uncontrolled or uneven cracks. Concrete expands & shrinks with variations in moisture and temp. The overall affinity is to shrink and this can cause cracking at an early age. Uneven cracks are unpleasant and difficult to maintain but usually do not affect the integrity of concrete.
pipe expansion joint us bellows us bellows catalogue rubber expansion joint metal expansion joints driveway expansion joint filler flexi craft expansion joints building expansion joint systems
construction joint vs expansion joint construction joint vs control joint sidewalk control joint spacing concrete wall control joints expansion joint concrete construction joint concrete concrete joints control joint
monolithic isolation joints isolation joint material isolation joint vs expansion joint isolation joint neo prene insulating joints pipeline isolation joint vs control joint isolation joints in concrete concrete slab isolation joint
construction joint vs expansion joint construction joint vs control joints idewalk control joint spacing concrete wall control joints expansion joint concrete construction joint concrete concrete joints control joint
concrete joint filler
concrete joint filler strips
control joint vs construction joint concrete
concrete control joint filler
concrete slab control joint detail
types of concrete expansion joints
construction joint concrete
control joints in concrete
Waterproofing and damp proofing: My teaching for the 1st year students for the basic understanding. However, reference to the text books and practical exercise is must.
It is essential to waterproof a structure to prevent the seepage of water for its durability. We provide water proofing solutions for basements, sunken portions, roofs, terrace gardens and expansion joints etc. We deal with several ways of water proofing depending on a structure, site and conditions viz.:
Polymer Modified Cementitious Membranes
Polyurethane Membranes
Box Type Method using Kota/Agra Stone
Injection Grouting
APP modified bituminous membranes / Trafelt
EPD Membrane
PVC Membrane
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
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.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
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.
2. WHAT IS DAMPNESS ???????
Dampness is a state of diffused moisture in the air, on a surface, or in
a solid.
Dampness in building or house may cause most of the damage to the
components of the building or house.
RESULTS..
Dampness often leads to the growth of molds, mites and bacteria that
creates an unhealthy environment and causes health problems.
Dampness gradually impairs the affected part of the building, so this
problem should be attended as soon as possible. There are many
methods or treatment used to protect the house from dampness.
3. DAMP PROOF COURSE (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 :-
Flexible Materials: Materials like bitumen felts (which may be hessian
based or fibre/glass fibre based), plastic sheeting (polythene sheets)
etc.
Semi-rigid Materials: Materials like mastic, asphalt, or combination of
materials or layers.
Rigid Materials: Materials like first class bricks, stones, slate, cement
concrete etc.
4. DAMP PROOFING TREATMENT
IT CAN BE GROUPED INTO FOLLOWING CATEGORIES:-
1) TREATMENT OF FOUNDATION’S DAMPNESS FROM ADJACENT
GROUND
2) TREATMENT OF BASEMENT
3) TREATMENT OF FLOORS
4) TREATMENT OF WALLS
5) TREATMENT OF FLAT ROOFS, PARAPETS AND CANOPIES
6) TREATMENT OF PITCHED ROOFS
6. TREATMENT OF FOUNDATION’S DAMPNESS
FROM ADJACENT GROUND
THIS IS DONE BY PROVIDING AIR DRAINS AND DAMP PROOF COURSE OR
DPC ALONE.
SUB SOIL DRAINAGE MAY ALSO BE PROVIDED.
WHAT IS AN AIR DRAIN?
IT IS A NARROW DRY SPACE ( 20-30 CM)
IT IS ON THE OUTER FACE OF THE WALL BELOW THE GROUND LEVEL.
IT IS FORMED BY THIN OUTER WALL RESTING ON THE BASE SLAB OF
FOUNDATION
LITTLE ABOVE THE GROUND LEVEL(USUALLY 15 CM TO PREVENT
WATER ENTERING THE DRAIN)
OPENINGS WITH GRATINGS ARE PROVIDED AT REGULAR SPACING FOR
PASSAGE OF AIR.
TOP OF AIR DRAIN IS COVERED WITH R.C.C SLAB OR STONE SLAB.
DPC IS DONE HORIZONTALLY AND VERTICALLY.
8. TREATMENT OF BASEMENTS
TO ENSURE THE DRYNESS, THE WHOLE OF THE STRUCTURE BELOW
GROUND LEVEL SHOULD BE PROVIDED WITH A CONTINUOUS
MEMBRANE OF ASPHALT (DPC):- MASTIC ASPHALT OR BITUMINOUS
FELT SUPPORTED ON THE INSIDE.
IT IS DONE BY SPREADING A LAYER OF DPC OVER THE WHOLE AREA
OF THE FLOOR INCLUDING THE PROJECTION OF 15CM AND
CONTINUING THE SAME THROUGH EXTERNAL WALL.
DPC FOR BASEMENT MUST BE PROVIDED IN DRY SEASON WHEN SUB
SOLI WATER IS AT ITS LOWEST LEVEL.
AN ADEQUATE DEWATERING ARRANGEMENT FOR PUMPING OUT
SUBSOIL MUST BE PROVIDED.
SHUTTERING MUST BE PROVIDED TO PREVENT THE EXCAVATION
FROM COLLAPSING.
BRICK IS LAID FLAT ON CEMENT CONCRETE TO PROTECT DPC FROM
DAMAGE DURING FLOOR CONSTRUCTION.
11. TREATMENT OF FLOORS
FOR DRY LOCATIONS, A FILLING OF 7.5CM TO 15CM OF DRY COURSE
SAND UNDER THE FLOOR MASONRY IS DONE.
A HARDCORE FILLING OF STONES WITH SMALLER STONES TO FILL
IN VOIDS IS ALSO QUITE SUITABLE.
THE FILLING MUST BE WELL RAMMED
A THIN LAYER OF COAL TAR AND CINDERS UNDER TILED FLOOR ACT
AS GOOD DPC
WATER PROOFING MEMBRANE OF MASTIC ASPHALT OR FIBROUS
ASPHALT FELT, BEFORE A CONCRETE FLOOR IS LAID.
GENERALLY, A PRIMING COAT OF HOT LIQUID ASPHALT IS FIRST
GIVEN AND THEN MASTIC ASPHALT IS APPLIED IN 2 COATS.
CONCRETE FLOOR IS REINFORCED IF THERES IS CHANCE OF
EXCESSIVE UPLIFT PRESSURES DUE TO SOIL AND WATER TABLE
13. TREATMENT OF WALLS
IN CASE OF BASEMENTS:-
THE EXTERNAL FACE OF WALL IS WELL GROUTED WITH WATER PROOF
CEMENT PLASTER.
THIS FORMS THE BASE WHICH IS CONTINUED FROM BASEMENT
FLOOR AND
EXTENDED VERTICALLY UP COVERING WHOLE AREA OF EXTERNAL
WALL
FACE.
A THIN SKIN OF WALL OR PROTECTIVE WALL IS PROVIDED ABOVE DPC
LAYER.
IN INTERNAL WALLS, :-
DPC IS PROVIDED IN LEVEL WITH UPPER SURFACE OF CONCRETE
FLOOR.
CONTINUITY OF DPC BETWEEN INTERNAL AND EXTERNAL WALL IS
ATTAINED
BY WAY OF CEMENT CONCRETE BLOCKS ON BITUMINISED BRICKS.
IN CASE OF AN EXISTING WALLS:-
A CUT ABOVE 15CM OR ABOVE THE GROUND IS MADE AT CORNER OF
WALL.
LOOSE BRICKS ARE REMOVED.
15. IN CAVITY WALLS:-
A HORIZONTAL DPC IS LAID 15CM ABOVE
GROUND LEVEL.
A LAYER OF LEAD SHEET , COPPER SHEET
OR ASPHALT FELT IS BROUGHT DOWN
FROM INNER WALL TO THE HEAD OF FLOOR
OR WINDOW TO PROTECT OPENINGS.
GENERALLY, A POROUS EXTERNAL
TREATMENT OF PLASTER, HAVING
PROPORTIONS(1 CEMENT : 1 LIME : 6 SAND)
TO THE WALL IS RECOMMENDED
16. TREATMENT OF FLAT ROOFS, PARAPETS AND
COPINGS
IN CASE OF FLAT ROOFS:-
1) LIME CONCRETE TERRACING
2) LIME CONCRETE TERRACING WITH FLAT TILES
3) MUD PUSHKA TERRACING WITH TILES
LIME CONCRETE TERRACING:-
RECOMMENDED FOR HOT AND HUMID REGIONS OF INDIA.
LAYING LIME CONCRETE AT ADEQUATE SLOPES
APPLICATION OF HOT PRIME COAT OF BITUMEN OVER DRIED LIME
CONCRETE
LAYING SHEET OF BITUMEN OVER PRIMED SURFACE
LIME CONCRETE TERRACING WITH FLAT TILES:-
RECOMMENDED IN HOT AND HUMID REGIONS
ROOF IS USED FOR SLEEPING
ROOF STRENGTHENED BY COVERING LIME CONCRETE WITH 2
COURSES OF BRICK TILES LAID IN CEMENT MORTAR.
17. THE PROCESS OF LAYING DPC IS DONE IN VARIOUS STEPS:-
a) LAYING DPC OF HOT BITUMEN AT 1.7KG/M.SQ OF ROOF SURFACE.
b) SPREADING OVER HOT BITUMEN
c) A LAYER OF COARSE SAND AT 0.6M.SQ OF SAND PER 100M.SQ OF
ROOF SURFACE
d) LAYING LIME CONCRETE AT PROPER SLOPE IN AVERAGE THICKNESS
OF 10CM
e) LAYING 2 COURSES OF FLAT TILES IN CEMENT MORTAR
f) JOINTS OF TOP TILE IS POINTED USING CEMENT MORTAR(1:3)
18. MUD PHUSKA TERRACING WITH TILES:-
RECOMMENDED FOR HOT AND ARID REGIONS
LAYING DPC OF HOT BITUMEN AT 1.7KG/M.SQ OF ROOF SURFACE.
SPREADING OVER HOT BITUMEN
A LAYER OF COARSE SAND AT 0.6M.SQ OF SAND PER 100M.SQ OF
ROOF SURFACE
LAYING A LAYER OF MUD PHUSKA PREPARED FROM PUDDLED OR CLAY
LIME CONCRETE
COVERING THE MUD PHUSKA LAYER WITH MUD-GOBAR MORTAR(3 MUD
: 1 COWDUNG)
FLAT TILES ARE LAID WITH CEMENT MORTAR (1 :3)
JOINTS GROUTED
19. POINTS TO BE NOTED FOR WATER PROOFING
OF ROOFS
1) SHUTTERING SHOULD BE EITHER OF STEEL OR STRONG WOOD
2) JOINTS MADE WATER TIGHT
3) RCC SLABS MADE DENSE WITH VIBRATORS
4) TOP SURFACE OF RCC SLAB FINISHED WITH CEMENT MORTAR(1:3)
5) SURFACE OF SEALS IS CLEANED WITH RAG SOAKED IN KEROSENE
OIL AND TREATED WITH 2 COATS OF HOT BITUMEN.
6) BITUMEN PADS SHOULD BE USED BETWEEN SLABS AND JUNCTIONS
OF SLABS.
7) FINISHED SURFACE OF ROOF SHOULD HAVE A SLOPE OF 1 IN 50
20. IN CASE OF PARAPETS AND CANOPINGS:-
DPC (ASPHALT) COVERING ROOF EXTENDED UP THE JUNCTION
AGAINST PARAPET WALL ATLEAST UPTO 15CM HEIGHT
DPC LAID IN FULL THICKNESS OF WALL INCLUDING ANY PLASTER
DPC UNDER COPINGS ARE PROVIDED WHERE BRICKS USED ARE
POOR QUALITY
A METAL FLASHING ON EXTERIOR SURFACE OF PARAPET WALL CAN
BE PROVIDED TO ATTAIN CONTINUITY IN DPC
21. TREATMENT OF PITCHED
ROOFS
DESIGN AND CONSTRUCTION OF
ROOF TILES AND ROOFINGS SHEETS
MUST BE TAKEN CARE.
ROOF SLOPES MUST BE SUFFICIENT
FOR A PARTICULAR BUILDING
RAIN WATTER GUTTERS MUST BE OF
SUFFICIENT CAPACITY, WATER TIGHT
AND CAPABLE OF ACCOMODATING
VARIATIONS DUE TO TEMPERATURE
CHANGES WITHOUT LEAKAGES.
TILES SHOULD BE PROJECTED
BEYOND EDGE OF GUTTER
LEAD FLASHING(DPC) PROVIDED IN
GUTTER SHOULD BE EXTENDED UP
SURFACE OF PARAPET WALL AND
PARTLY INSIDE BODY OF WALL.
PARAPET WALL MUST BE
PROTECTED BY COPINGS OF STONE
OR WELL BURNT BRICKS WITH DPC
UNDERNEATH.
22. REFERENCE
WEBSITE:-
http://constructionduniya.blogspot.in/2012/06/materials-used-for-damp-proofing.
html
http://theconstructor.org/building/protection-of-buildings-against-dampness/
4577/
http://www.gharexpert.com/articles/Dampness-2016/Damp-Proofing_0.aspx
http://theconstructor.org/building/damp-proof-course-dpc/4590/
BOOK:-
BUILDING AND CONSTRUCTION-S.P.ARORA AND S.P.BINDRA