Distress of concrete structures & their repair …
This document discusses concrete distress and repair techniques. It begins by explaining that concrete structures may need repair after 25-30 years of service without maintenance. It then lists common causes …
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(PDF) Repair, Rehabilitation and Retrofitting of …
This paper deals with the latest techniques in repair and rehabilitation of structures. The various causes of structural failure and the principles of rehabilitation of structures are discussed.
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Maintenance and repair of buildings. | PPT
Maintenance and repair of buildings. - Download as a PDF or view online for free. ... NATURE AND TYPE OF CRACKS • Random cracks in structure exposed to weather –these cracks occur after many years of construction maybe 15to 20 years ; they are likely to be caused due to shrinkage from carbonation of concrete. • Straight cracks in columns ...
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Techniques of Construction For Continuous Concreting Operation | PDF
Techniques of construction for continuous concreting operation - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. This document discusses slip forming construction techniques. It begins by introducing slip forming as a construction method where concrete is poured into a …
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Underwater construction | PPT
15. cofferdams • temporary structure • allows enclosed space to be pumped out, creating dry environment • enclosed coffers are commonly used for construction and repair of oil platforms, bridge piers and other support structures built within or over water • a cofferdam involves the interaction of the structure, soil and water. Loads imposed include the hydrostatic …
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Innovation technique in construction | PPT
15. Horizontal axis - the degree to which the design, construction, and long term operations and maintenance of an infrastructure facility are segmented into multiple contracts or combined in a single contract. Vertical axis- the degree to which funds to pay for capital and operating cost are direct or indirect. Project Delivery Methods • Can impact allocation of risk, …
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Mitral valve repair | PPT
3. MITRAL VALVE REPAIR • Mitral valve repair is the procedure of choice for correcing severe mitral regurgitation. • Aim 1. restore a large surface of leaflet coaptation, 2. preserve leaflet mobility, 3. restore physiologic annular geometry with a remodeling annuloplasty. • a systematic approach to reconstructive surgery should be used that includes a …
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Construction Estimating | PPT
Construction Estimating What it takes to estimate consistently 2. Measurable Results You must have measurable results- Everything must be based on a unit of measure Costs per linear foot, square foot, square yard, cubic centimeter, and so on.
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Repair, Retrofitting, Rehabiliation of Structures
Common repair techniques for cracks include epoxy injection, routing and sealing, stitching, and providing additional reinforcement. The document discusses repair, rehabilitation, and retrofitting of structures.
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The Details of The Details of New Techniques Used in Repair | PDF
the Details of the Details of New Techniques used in Repair - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. The document discusses various techniques for repairing deteriorated concrete structures. It begins by outlining the general procedure for concrete repairs, which involves properly supporting structural …
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Rehabilitation and strengthening of existing structures | PPT
11. CRACK REPAIR TECHNIQUES The general procedure are given below: Clean the cracks: The first step is to clean the cracks that have been contaminated. Contaminants such as oil, grease, dirt, or fine particles of concrete prevent epoxy Contamination should be removed by vacuuming or flushing with water or other specially effective cleaning solutions.
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LECTURE NOTES ON ADVANCED CONSTRUCTION …
Advanced Construction Techniques and Equipment 6 is a bundle of many thousand carbon filaments. A single such filament is a thin tube with a diameter of 5-8 μm (i.e. 5-8 micrometres) and consists of almost exclusively of carbon. Properties of Carbon Fibers • It has a ...
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Denture Repair . | PPT | Free download
4. In the survey, 20 labs denture construction and repair was studied and co-laborated the results showing the ratio of maxillary to mandibular denture fracture is 2:1 and being the most common cause : POOR FIT and …
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Repair techniques : Grouting (RR&S) | PPT
3. GROUTING • Grouting is a process of filling the cracks or voids under pressure in concrete or masonry structural member to change its physical characteristics. • Grout is a flow able plastic material with negligible shrinkage to fill the voids completely. • In this technique Grouting machine, mixture (cement, sand, water) are used to fill the cracks and voids in the …
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Chapter 6 Materials and Methods for Repair and …
This chapter contains descriptions of various materials and methods that are available for repair or rehabilitation of concrete structures. Each of the entries in this chapter will include …
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Prefabrication in construction | PPT
3. Theory The theory behind the method is that time and cost is saved if similar construction tasks can be grouped, and assembly line techniques can be employed in prefabrication at a location where skilled labour is available, while congestion at the assembly site, which wastes time, can be reduced. The method finds application particularly where the …
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Tendon repair | PPT
Tendon repair - Download as a PDF or view online for free. ... Various suture techniques are discussed for end-to-end, end-to-side, and tendon-to-bone repairs. Post-operative rehabilitation aims to promote intrinsic healing while minimizing scarring through early controlled motion to optimize tendon gliding and range of motion recovery.
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Structural Health Monitoring | PPT
24. Vibration Based SHM: Model-Based Techniques 24 *Based on a model (e.g. F.E.) of the monitored structure. *Optimization based methods: • An initial model is updated using measured structural response. Also called FE model updating • Optimization algorithms are run by iteratively changing the values of some structural properties (e.g. Young's modulus), so that …
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Construction techniques | PPT
14. MECHANICAL vs MANUAL Mechanical Manual may be described as heavy machinery operated by fuel and electricity human and animal power assisted by simple implements like wheel barrows, normal pick axe and spade etc Includes persons having training in performing jobs needing skill e.g: operators of mechanical and electrical equipments, drivers of …
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Techniques for various structural repair | PPT
7. • A separate pipe line brings water under pressure and the water and cement aggregate mix are passed through and intimately mixed in a special manifold and then projected at high velocity to the surface being repaired. • In good quality work, a density around 2100kg/m3 is achieved. For effective guniting, the nozzle should be kept at 60cm to 150cm from the work …
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Surface Repair Using Form-and-Pour Techniques
The form-and-pour placement technique is a multistep process of preparation, formwork construction, and placement of repair materials. Repair materials are placed in the cavity …
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REPAIR, RESTORATION AND STRENGTHENING OF …
The prob- lems of repairs, restoration and seismic strengthening of buildings are briefly stated below: (i) Before the occurrence of the probable earthquake, the required strengthen- ing of …
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Formwork | PPT
presentation on "formwork" construction techniques by k.sneha roll no: 131564 m.tech 1st year 2. What is Formwork? o It should be capable of carrying all imposed dead and live loads apart from its own weight. o Formwork is a mould including all supporting structures, used to shape and support the concrete until it attains sufficient ...
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Bamboo Construction | PPT
Bamboo Construction - Download as a PDF or view online for free. ... It is even possible to produce them, by using the synthetic spray technique, directly on the bamboo. There can be bores, threads or flanges fixed to the caps. If you use steel or aluminiumcaps they can even be welded to other metalparts. used for: scaffolding, tent ...
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UNIT 5-REPAIR, REHABILITATION AND RETROFITTING …
3. What is the techniques required for repairing cracks? (Nov-2013) • Bonding with epoxies • Routing and sealing • Stitching • Blanketing • External stressing • Grouting • Autogenous healing
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Chapter 3 materials & techniques for repairs | PPT
Chapter 3 materials & techniques for repairs - Download as a PDF or view online for free. Submit Search. ... Cement forms one of the most basic materials used for not only in new construction but also as repair material. Therefore, selection of the appropriate type of cement for new construction as well as repair work is important and ...
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automation in construction | PPT
7. History of Automation in Construction Research in construction robotics and automation started in the 1980s with the introduction of single-purpose robots (principally remotely controlled, or teleoperated, machines). Example applications include robots developed for rapid runway repair and unexploded ordinance removal. In the EU, research was focused on the …
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Shoring and underpinning | PPT
• Download as PPTX, PDF ... Shoring provides temporary stability during construction or repairs using techniques like raking, flying, or dead shores made of timber or steel. ... It is the means of providing support to get stability of a structure temporarily under certain circumstances during construction, repair or alteration. Such ...
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Water proofing in buildings | PPT
3. Construction waterproofing In building construction, a structure needs waterproofing since concrete itself will not be watertight on its own (but note concrete is easily waterproofed with additives). The conventional system of waterproofing involves 'membranes'. This relies on the application of one or more layers of membrane (available in various …
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