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  • Emerging Trends and Innovations in Concrete

    Reactive powder concrete is extremely workable, durable and yields ultra-high strengths without using coarse aggregates. Reaching compressive strengths of 30,000 pounds per square inch (psi), this new-age concrete also has tensile strength with the inclusion of steel and synthetic fibers.

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  • Types of Precast Components in a Building - The Constructor

    The figure below shows the building structure with basic precast components. The number of different types of precast components in these structures over the years have become very large. But following figure shows the major types of precast components in a building. For structures of five storeys ...

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  • PRECAST CONCRETE STRUCTURES - paradigm

    Reinforced concrete slabs are poured on the ground in forms, one on top of the other. Precast concrete floor slabs are lifted from the ground up to the final height by lifting cranes. The slab panels are lifted to the top of the column and then moved downwards to the final position.

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  • What Is SlideShare? +How to Get Started Using It Quickly

    Learn how to upload a SlideShare presentation in this helpful tutorial, How to Upload Your SlideShare Slides to Use on LinkedIn. Market Your SlideShare Presentation Online. SlideShare is a great online platform to reach new customers, promote your ideas, and grow your audience.

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  • Reinforced Concrete Design - EWB-UMN

    = shear strength in concrete design Reinforced Concrete Design Structural design standards for reinforced concrete are established by the Building Code and Commentary (ACI 318-11) published by the American Concrete Institute International, and uses strength design (also known as limit state design). f' c

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  • concrete mix proportations - Civil Engineering

    Proportioning Concrete Once a mix ratio is selected, you need to compute the amounts of cement, water, and aggregates required To start, we need to estimate the volume of concrete required for the job. In your work, we used cylinder molds to form our concrete specimens Proportioning Concrete The volume of a cylindrical mold is: 2 cyclinder 4 hD

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  • Powerpoint Presentations on Civil Engineering - civil ppt

    Structural Engineering. Structural Engineering is the back bone of civil engineering and is one of the most sophisticated branch in civil engineering. Hence, the subject is very vast and advancing over time. The branch basically deals with analysis and design of structures. The design materials are usually wood, concrete, steel,...

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  • Types of Admixtures of Concrete & Cement | Chemical, Mineral

    A material other than water, aggregates, or cement that is used as an ingredient of concrete or mortar to control setting and early hardening, workability, or to provide additional cementing properties. Admixtures are generally used to alter the properties of concrete (such as increased workability or reduced water content, acceleration or retardation of setting time,

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  • What is Green Concrete? Its Applications and Advantages in ...

    "Green concrete" is a revolutionary topic in the history of concrete industry. This was first invented in Denmark in the year 1998 by Dr.WG. Concrete wastes like slag, power plant wastes, recycled concrete, mining and quarrying wastes, waste glass, incinerator residue, red mud, burnt clay, sawdust, combustor ash and foundry sand.

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  • Aerocon Bricks | Seminar Report, PPT, PDF for Civil ...

    AAC was invented in mid-1923 in Sweden. It is also known as Autoclaved Cellular Concrete (ACC) or Autoclaved Lightweight Concrete (ALC). Production process of AAC is fairly simple. It is made with made with a mixture of fly ash, lime, cement, gypsum, an aeration agent and water. Aeration process, imparts it a cellular light-weight structure.

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  • Concrete Basics - YouTube

    Jan 16, 2017 · How to Form Concrete Basics Driveway Addition - Duration: 17:17. Odell Complete Concrete ... Amazing Concrete Garden Boxes PART 1- DIY .

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  • Learn the Basics of Brick Masonry Construction

    Concrete blocks are the most common material used for foundation walls, and can also be used for exterior wall construction, as well as landscape walls. Learn how concrete block is installed. A special type of concrete block, concrete block insulating units (CBIUs), can provide insulation values up to R-22.

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  • Concrete Nouns vs. Abstract Nouns | Grammarly

    All nouns fall into one of two categories: concrete nouns and abstract nouns. What Is a Concrete Noun? A concrete noun is a noun that can be identified through one of the five senses (taste, touch, sight, hearing, or smell). Consider the examples below: Would someone please answer the phone? Here ...

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  • 6 BASIC CROSS SECTIONAL ELEMENTS OF HIGHWAY PAVEMENT ...

    Sep 08, 2015 · The characteristics of cross-sectional elements are important in highway geometric design because they influence the safety and comfort. The 7 basic cross sectional elements of a highway pavement are. Camber; Width of Carriage way; Kerb; Road Margin; Width of Formation; Right of Way (ROW) 1. Camber

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  • Interior Design Basics - dummies

    Whether you're redecorating one room or hiring a professional designer to revamp your entire living space, it helps you to understand the basics of interior design and what they encompass. A design is an orderly arrangement of five basic elements: Color, the creator of illusion and maker of mood Form, the overall shape of any [.]

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  • Concrete: The Basic Mix

    The Basic Mix: A general teacher's guide for concrete preparation. The physical properties of density and strength of concrete are determined, in part, by the proportions of the three key ingredients, water, cement, and aggregate. You have your choice of proportioning ingredients by volume or by weight.

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  • How to Download (PPT) Files From SlideShare Online for Free

    Save the SlideShare presentation file in your browser by clicking to the left of the Save File option. Click the OK button at the bottom of the prompt to finalize your choice. In the Chrome browser, your SlideShare presentation download appears at the bottom of the screen: In Chrome, your SlideShare download is at the bottom of the browser window.

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  • Best Practices for Concrete Pavements / Effective Quality ...

    EFFECTIVE QUALITY ASSURANCE FOR CONCRETE PAVING OPERATIONS. BACKGROUND AND INTRODUCTION. This tech brief looks at the elements needed to implement an effective quality assurance (QA) program for concrete paving operations. The benefit of a good QA program far outweighs the costs for both the agency and contractors.

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  • concrete mix proportations - Civil Engineering

    Proportioning Concrete Once a mix ratio is selected, you need to compute the amounts of cement, water, and aggregates required To start, we need to estimate the volume of concrete required for the job. In your work, we used cylinder molds to form our concrete specimens Proportioning Concrete The volume of a cylindrical mold is: 2 cyclinder 4 hD

    Get Price
  • Slideshare - FPPT

    Free Presentation Templates for SlideShare. SlideShare is one of the most popular websites to share presentations online and you can use it to showcase your PPT presentations or demonstrate your expertise using PowerPoint presentations that are converted to an online slideshow. Since Linkedin acquired SlideShare for more than $119 millions in 2012,...

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  • Prestressed Concrete

    Once the concrete has hardened to the required strength, the steel tendons are inserted and stretched against the ends of the unit and anchored off externally, placing the concrete into compression. Post-tensioned concrete is used for cast-in-place concrete and for bridges, large girders, floor slabs, shells, roofs, and pavements.

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  • Guide to Long-span Concrete Floors

    Traditionally column spacings and floor spans in these buildings have been in the range of 6 to 9 metres, to both contain costs and simplify construction. However, recently there is a preference for large floor areas with column-free space and spans.

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  • Properties of Concrete - Workability, Setting, Bleeding ...

    Segregation can be defined as the separation of the constituent materials of concrete. A good concrete is one in which all the ingredients are properly distributed to make a homogeneous mixture. There are considerable differences in the sizes and specific gravities of the constituent ingredients of concrete.

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  • CONCRETE THE LITTLE BOOK OF - Precast concrete

    When you need to keep water out, precast concrete is the best solution. It can be used for on-site wastewater systems, flood protection, rivers and coastal barriers to protect against inundation from high tides and storms. Precast foundation systems are also ideal for residential construction, where below-ground basements need robust waterproofing.

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  • Concrete Finishing- How to Create a High Quality Slab ...

    Dont finish the concrete while there is bleedwater on the surface. Using a finishing tool while there is water on the surface increase water-cement ratio by working the water back into the concrete instead of letting it evaporate. This can cause dusting, scaling and craze cracking. Read other tips on Building a High Quality Slab on Grade.

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  • What is Reinforced Concrete or RCC? – Introduction ...

    Concrete is slightly brittle due to which it may break when subjected to sudden stresses caused by weather. Reinforced concrete can withstand larger weights and possess a longer life. Reinforced concrete is used in most of the structures being built now. Steel and non-steel reinforcement methods are described in the article.

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  • What is the basic principle of pre-stressed concrete? - Quora

    Sep 18, 2015 · * Concrete is weak in tension and strong in compression. * Prestressed concrete is a method for overcoming concrete's natural weakness in tension. * PRETENSIONING :Placing of concrete around reinforcing tendons that have been stressed to the desi...

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  • principles of concrete mix design.ppt - ACC Help

    Principles of Concrete & Concrete Mix Design- IS 10262. Concrete. Concrete is an intimate mixture of: Cement, Sand (Fine Aggregate), Coarse Aggregate, Water. New Generation Concrete needs use of Special Materials in addition to above i.e. "ADMIXTURES" Admixtures may be .

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  • Properties of Concrete - Workability, Setting, Bleeding ...

    Segregation can be defined as the separation of the constituent materials of concrete. A good concrete is one in which all the ingredients are properly distributed to make a homogeneous mixture. There are considerable differences in the sizes and specific gravities of the constituent ingredients of concrete.

    Get Price
  • Special Concrete - Types and Applications of Special Concrete

    Uses and Applications of Special Concrete. Special concrete is used in extreme weather. HPC has been used in large structures such as the Petronas Towers and the Troll Platform. Petronas Towers was the tallest concrete building in the world built in Malaysia in the mid-1990s. In 1998, the deepest offshore platform, the Troll platform,...

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