Alternate Building Materials,Alternative Construction Technology and Rain Wat...Rajesh Kolli
The Core of any construction project is its design and at basic level is the materials used.
During the first phase of civilization we used the raw material such as leaves, branches and animal hides for the construction but with increase in our intellect we started improvising other materials such as stone, clay and timber.
With growing time we developed other materials such as brick and concrete, these materials went under great change and stayed till date from the starting of Egyptian civilisation to the present one.
The sudden change in the palate for construction was marked by the INDUSTRIAL REVOLUTION giving birth to various materials such as metals, glass and steel. It gave rise to many new technologies.
After the industrial revolution many materials had come up over these years. Such as PVC and plastics , many types of concrete like ferrocrete & precast, GRF etc. even now lot of researches are going on new materials and about increasing the efficiency of earlier one.
Transparent concrete is a concrete based building material with light-Tran missive properties due to embedded light optical elements usually Optical fibres. Light is conducted through the stone from one end to the other. Therefore the fibres have to go through the whole object. Transparent concrete is also known as the translucent concrete and light transmitting concrete because of its properties. It is used in fine architecture as a facade material and for cladding of interior walls. In this paper, to integrate the merits of concrete and optical fibre, for developing transparent concrete by arranging the high numerical aperture Plastic Optical Fibres (POF) or big diameter glass optical fibre into concrete. The main purpose is to use sunlight as a light source to reduce the power consumption of illumination and to use the optical fiber to sense the stress of structures and also use this concrete as an architectural purpose for good aesthetical view of the building.
Alternate Building Materials,Alternative Construction Technology and Rain Wat...Rajesh Kolli
The Core of any construction project is its design and at basic level is the materials used.
During the first phase of civilization we used the raw material such as leaves, branches and animal hides for the construction but with increase in our intellect we started improvising other materials such as stone, clay and timber.
With growing time we developed other materials such as brick and concrete, these materials went under great change and stayed till date from the starting of Egyptian civilisation to the present one.
The sudden change in the palate for construction was marked by the INDUSTRIAL REVOLUTION giving birth to various materials such as metals, glass and steel. It gave rise to many new technologies.
After the industrial revolution many materials had come up over these years. Such as PVC and plastics , many types of concrete like ferrocrete & precast, GRF etc. even now lot of researches are going on new materials and about increasing the efficiency of earlier one.
Transparent concrete is a concrete based building material with light-Tran missive properties due to embedded light optical elements usually Optical fibres. Light is conducted through the stone from one end to the other. Therefore the fibres have to go through the whole object. Transparent concrete is also known as the translucent concrete and light transmitting concrete because of its properties. It is used in fine architecture as a facade material and for cladding of interior walls. In this paper, to integrate the merits of concrete and optical fibre, for developing transparent concrete by arranging the high numerical aperture Plastic Optical Fibres (POF) or big diameter glass optical fibre into concrete. The main purpose is to use sunlight as a light source to reduce the power consumption of illumination and to use the optical fiber to sense the stress of structures and also use this concrete as an architectural purpose for good aesthetical view of the building.
It is the presentation based on precast concrete construction which includes each and every point and scope which may be useful to civil engineering students
It is all about sustainable buildings or green buildings and a brief study of some sustainable building materials we can use for making a building sustainable and green.
A material that in the works of being used widely as a material for architectural facades and in other fields also. Combining the properties of glass and wood theoretically, has proved to be a marvel in the field of engineering and architecture alike.
All you need to know about timber in just a single ppt with interesting slides. Hope it hlps! This ppt was created as the result of a teamwork with my classmates
A study project on Low cost housing. The various construction techniques available for reduction of cost of a building are discussed. A study is also performed on the citizens of Vijayawada and the interpreted results are shown.
In its natural form, bamboo as a construction material is traditionally associated with the cultures of South Asia, East Asia and the South Pacific, to some extent in Central and South America, and by extension in the aesthetic of Tiki culture. In China and India, bamboo was used to hold up simple suspension bridges, either by making cables of split bamboo or twisting whole culms of sufficiently pliable bamboo together. One such bridge in the area of Qian-Xian is referenced in writings dating back to 960 AD and may have stood since as far back as the third century BC, due largely to continuous maintenance.
Bamboo has also long been used as scaffolding; the practice has been banned in China for buildings over six stories, but is still in continuous use for skyscrapers in Hong Kong.[6] In the Philippines, the nipa hut is a fairly typical example of the most basic sort of housing where bamboo is used; the walls are split and woven bamboo, and bamboo slats and poles may be used as its support. In Japanese architecture, bamboo is used primarily as a supplemental and/or decorative element in buildings such as fencing, fountains, grates and gutters, largely due to the ready abundance of quality timber.
Prefabrication is the practice of assembling components of a structure in a factory or other manufacturing site, and transporting them to the construction site where the structure is to be located.
It is the presentation based on precast concrete construction which includes each and every point and scope which may be useful to civil engineering students
It is all about sustainable buildings or green buildings and a brief study of some sustainable building materials we can use for making a building sustainable and green.
A material that in the works of being used widely as a material for architectural facades and in other fields also. Combining the properties of glass and wood theoretically, has proved to be a marvel in the field of engineering and architecture alike.
All you need to know about timber in just a single ppt with interesting slides. Hope it hlps! This ppt was created as the result of a teamwork with my classmates
A study project on Low cost housing. The various construction techniques available for reduction of cost of a building are discussed. A study is also performed on the citizens of Vijayawada and the interpreted results are shown.
In its natural form, bamboo as a construction material is traditionally associated with the cultures of South Asia, East Asia and the South Pacific, to some extent in Central and South America, and by extension in the aesthetic of Tiki culture. In China and India, bamboo was used to hold up simple suspension bridges, either by making cables of split bamboo or twisting whole culms of sufficiently pliable bamboo together. One such bridge in the area of Qian-Xian is referenced in writings dating back to 960 AD and may have stood since as far back as the third century BC, due largely to continuous maintenance.
Bamboo has also long been used as scaffolding; the practice has been banned in China for buildings over six stories, but is still in continuous use for skyscrapers in Hong Kong.[6] In the Philippines, the nipa hut is a fairly typical example of the most basic sort of housing where bamboo is used; the walls are split and woven bamboo, and bamboo slats and poles may be used as its support. In Japanese architecture, bamboo is used primarily as a supplemental and/or decorative element in buildings such as fencing, fountains, grates and gutters, largely due to the ready abundance of quality timber.
Prefabrication is the practice of assembling components of a structure in a factory or other manufacturing site, and transporting them to the construction site where the structure is to be located.
Avoid wastage of food, water, industrial and agricultural products. Also please remember what Gandhiji said, "The world has enough for everyone's need but not enough for everyone's greed"
Avoidance of waste and recycling of construction and demolition waste Dr K M SONI
Waste generation has to be stopped whether food, water, energy or even construction and demolition. This will save natural resources and help in emission of greenhouse gases and climate change.
Aerocon bricks are named as Autoclaved Aerated concrete (AAC) blocks made with a mixture of cement, fly ash, lime, an aerated agent, and water. Aerocon bricks are available in different sizes and varied thickness as follows.
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Rapid construction techniques used in now a days, modern construction techniques, LIGHT HOUSE PROJECTS, global housing technology challenge, ix Technology providers have been selected through rigorous online bidding process for construction of Light House Projects (LHPs) at six different locations in six states. ghtc india
ALTERNATE BUILDING MATERIALS & TECHNOLOGICAL ALTERNATIVES IN CONSTRUCTIONRajesh Kolli
Construction and civil engineering activities have experienced a rapid growth due to improvements in procurement of building materials.
However, the current scenario in the developing construction industry has posed many challenges due to some unsustainable aspects of the highly polluting and the exhaustive nature of building materials.
At the same time, it has also created opportunities for innovative and unconventional resources to emerge due to the widening gap in demand and supply of building materials, as well as the need for energy efficient and economical methods of construction.
This slide explains how the GFRG panels are made from industrial waste Gypsum. These panels are very economical and transforms brick by brick construction to wall by wall construction resulting in rapid construction. Where the conventional building takes about years of construction time, this technique can save time upto 80%.
Finishing and other methods of construction, scaffolding, shoring, underpinningANURAG KASHYAP
materials of construction:
The methods involved in a construction like scaffolding, shoring, formwork, etc.
pre-casted fabrication techniques,
types of construction
civil engineering
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.
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.
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.
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.
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
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
1. USE OF NEW MATERIALS AND
TECHNOLOGIES BY CPWD AT MUMBAI
DR K M SONI
CHIEF ENGINEER, CPWD, MUMBAI
2. Post Tensioned Slabs
• POST TENSIONED SLABS
– CBI OFFICE BUILDING
– NISM BUILDINGS (PARTLY)
– INCOME TAX BUILDING UNDER CONSTRUCTION
– IDBI BUILDING UNDER CONSTRUCTION
3.
4.
5.
6. Advantages of PT Slab
• Material Savings
• Reduction in concrete is due to thinner
concrete members.
• Reduction in rebar in floor elements.
• Reduction in dead load resulting into saving in
concrete and reinforcement of structural
members including foundation.
• Saving in building cladding, vertical
mechanical/service elements, rebar and
concrete in shear walls and other materials
due to lesser sizes.
7. Steps in construction
• Design
– The existing design has been based on Presscrete Post-Tensioning System (PPS). Concrete in
one member panel shall be placed in one operation continuously without interruption.
• Concreting
– Care is taken that the pre-stressing tendons do not get displaced or damaged prior to casting
and during casting. It is ensured that discharge of concrete is not directed onto the pre-
stressing tendons. Vibrating is avoided from coming into contact with the pre-stressing
tendons whenever possible. Proper compaction of the concrete in anchorage areas is ensured
due to high local stresses in these areas and care taken that all the grout hoses remain
exposed and protruding from the concrete surface.
• Stressing
– After concreting, the carpenter removes the vertical sides end form work. All the stressing
recesses are cleared and pre-stressing barrels and wedges fixed to all pre-stressing castings.
When concrete has reached the transfer strength as per the shop drawings (from the results
of cube tests), stressing of cables is carried out. All cables are tensioned to the required
jacking force and monitored through the pressure gauges.
• Grouting
– Excess cable length is cut after the stressing. All pre-stressing tendons are ensured to be
flushed with clean water. Grout is mixed according to the design mix for at least two minutes
until a colloidal consistency is produced. The water is put into the container first and the
cement is then slowly added. When the cement and water are thoroughly mixed, the non-
shrink additive added to the mix. The grout then is injected into the pre-stressing tendons.
Grouting is carried out by injection at one end of the duct until clear grout flows out from the
other end. The grout hose at the both end is then sealed. Grouting works commence when all
scaffolds at a particular storey where grouting works are to be carried out, are removed.
8. Limitations
• Since the cables or tendons in the slab have
been stretched to high tensile strengths, it is
extremely important that the slab is not
drilled, cut, chiselled or disturb in a way so as
to expose the tendons
15. GFRC PANELS IN FACADE
• Can be manufactured in many shapes
• Can be painted
16.
17. STAMPED FINISH CONCRETE
• Can be achieved in desired colours
• The process includes
– preparation of sub-grade,
– placing of forms,
– providing reinforcement for stability,
– placing the concrete,
– screeding and finishing the concrete,
– applying colour and
– stamping the concrete using desired moulds.
44. Energy efficiency
• In new buildings only LED fitting or energy
efficient T5 fittings are provided.
• Energy efficient Chillers are provided
• Solar roof top PV Panels
• Recycling waste water
• Rain water harvesting
45. Pumping system
• CPWD has adopted hydro-pneumatic
pumping system for water supply in most of
large projects.
46. Green buildings
• CPWD is constructing all green buildings and
getting them rated in Mumbai
• CBI – 4 star GRIHA
• IDBI Belapur – 3 star GRIHA
• NISM – 4 star GRIHA
• NTH – 3 star GRIHA
• Income Tax Building – 4 star GRIHA