Reinforced Concrete 2011 lecture 1/3 1st lecture : Introduction, concrete and steel, reinforced concrete (r.c.) Content: 1. Brief history of (r.)c. construction 2. Co-action of concrete and steel in r.c. 3. Characteristics and basic mechanical behaviour of concrete and steel 4. Co-action of concrete and steel in reinforced concrete 5. Nov 11, 2017· DIY Concrete Basics for the beginner starting from the ground up. Ground work / Construction, rebar, pro-tips for sealing & protecting your finished job. Driveways, sidewalks, slab construction ...
Jul 10, 2015· A POWERPOINT PRESENTAION ON READY-MIX CONCRETE 1. A POWERPOINT PRESENTAION ON READY-MIX CONCRETE 2. • RMC IN INDIA: In India RMC was first initially was used in 1950 during the construction sites of Dams like Bhakra Nangal, Koyna. Concrete Mix Design -Definition Concrete mix design is defined as the appropriate selection and proportioning of constituents to produce a concrete with pre-defined characteristics in the fresh and hardened states. In general, concrete mixes are designed in order to achieve a defined workability, strength and durability .
View and Download PowerPoint Presentations on Concrete Technology PPT. Find PowerPoint Presentations and Slides using the power of XPowerPoint.com, find free presentations research about Concrete Technology PPT The ultimate strength of concrete is related to water/cement ratio and the size, shape, and strength of the aggregate used. Concrete with lower water/cement ratio (down to 0.35) makes a stronger concrete than a higher ratio. Concrete made with smooth pebbles is weaker than that made with rough-surfaced broken rock pieces for example.
Fundamentals of Concrete Compressive Strength — is defined as the measured maximum resistance of a concrete or mortar specimen to an axial load, usually expressed in MPa (psi) at an age of 28-days. Most general use concrete 20 to 40 MPa (3000 to 6000 psi) High-strength concrete by definition 70 MPa or greater (10000 psi or greater) Concrete Basics In its simplest form, concrete is a mixture of paste and aggregates (sand & rock). The paste, composed of cement and water, coats the surface of the fine (sand) and coarse aggregates (rocks) and binds them together into a rock-like mass known as concrete.
Properties of Concrete Concrete is an artificial conglomerate stone made essentially of Portland cement, water, and aggregates. Properties of Concrete While cement in one form or another has been around for centuries, the type we use was invented in 1824 in Britain. It … Concrete c 1,5 M 0 1,0 s 1,15 V 1,25 Stress-strain diagram of steel and concrete Note: for equal strainεa,c, steel gets much higher stress than concrete because of different modules of elasticity 8 Scope of the lecture Basic principles of the composite structures Shear connectors Composite beams Composite columns Steel-concrete slabs
The PowerPoint PPT presentation: "Fundamentals of Concrete Concrete 101" is the property of its rightful owner. Do you have PowerPoint slides to share? If so, share your PPT presentation slides online with PowerShow.com. Aug 05, 2015· Top 6 Important Quality Tests Of Concrete . By Noel Mades Posted on August 5, 2015 In General, Test 68 Comments. Tweet Pin It. I have been in 13 years in the quality assurance and quality control field and I already experienced about concrete works on site. How it will be cast? How it will be cured?
General Considerations for Workability of Concrete; Grading Of Aggregates for Concrete; Guidelines to Construct Joints in Concrete; H; High Performance Concrete & Self-Compacting Concrete; How to select the Formwork System; I; Introduction to Structural Concepts and Design; M; Minimizing water and cement requirements in Concrete Special Concrete means the concrete used or made for special cases, such as: Frequently, concrete may be used for some special purpose for which special properties are more important than those commonly considered. Sometimes, it may be of great importance to enhance one of the ordinary properties. These special applications often become apparent as new
CONCRETE BASICS A Guide to Concrete Practice CONTENTS Foreword page 2 CHAPTER 1 Concrete Materials pages 3–5 CHAPTER 2 Concrete Properties pages 6–9 CHAPTER 3 Concrete Testing pages 10–13 CHAPTER 4 Ordering Concrete page 14 CHAPTER 5 Proportioning and Mixing Concrete pages 15–16 CHAPTER 6 Planning and Site Preparation pages 17–19 Composites Basics: Materials Introduction Fiber Reinforced Polymer (FRP) composites is defined as a polymer (plastic) matrix, either thermoset or thermoplastic, that is reinforced (combined) with a fiber or other reinforcing material with a sufficient aspect ratio (length to thickness) to provide a discernable reinforcing function in one or more
MODULE 4 - LIFTING AND RIGGING SM 4 1 INTRODUCTION A fire officer on a pumper was once asked why he ordered the pumper engineer to drive the 30,000 pound fire apparatus on a road that had a bridge with a 10,000 load limit. The officer responded to the question by saying that "it was an emergency". Different types of concrete are produced based on the constituent material, mix design, the method of construction, area of application, form of hydration reaction. Details of these various types of concrete, their properties and applications are discussed. The concrete that is obtained by mixing ...
Concrete Technology - PPT - Free download as PDF File (.pdf), Text File (.txt) or view presentation slides online. ... Properties of concrete Workability Segregation Bleeding Strength Elasticity Shrinkage Creep Durability Basic Properties of Concrete Workability Durability Strength Properties of ... Concrete As A Material Concrete ... members.cement.org
The US Air Force Training Guide for Structural Concrete work is a 39 page training guide that teaches a few basic concrete skills. It's found at Air Force Qualification Training Package for Structural Concrete. Tricks of the Trade & Rules of Thumb for Concrete Basics: Know the different concrete mixes specified for the project. * 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...
BASIC CONCEPTS The Diamond Baseball Stadium, Richmond, ia. Situ cast and precast post-tensioned pre-stressed structure. (Courtesy, Prestressed Concrete Institute.) 1.1 INTRODUCTION Concrete is strong in compression, but weak in tension: its tensile strength varies from 8 to 14 percent of its compressive strength. Concrete Technology, basics of concrete - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. what is concrete? its constitution, stages, properties, different test etc
Jan 16, 2017· Amazing Concrete Garden Boxes PART 1- DIY Forms to Pour and Cast Cement Planter link together Beds - Duration: 23:50. MAN about TOOLS 983,651 views Basics of Concrete Materials and Testing ONE DAY, 7.5 HOURS Economy, constructibility, and long-term performance of concrete Fundamental Concrete Concepts Understanding the concrete needs for your project Matching materials to project requirements Moving from materials to completed project Selection and Use of Materials Cementitious materials
Cement and Concrete Basics. In its simplest form, concrete is a mixture of paste and aggregates. The paste, composed of portland cement and water, coats the surface of the fine and coarse aggregates. Through a chemical reaction called hydration, the paste hardens and gains strength to form the rock-like mass known as concrete. Reinforced Concrete Wall Design Basics Mike O'Shea, P.E. This session is not intended to teach concrete design, but more of an awareness of why things are the way they are
Dec 12, 2016· Geopolymer concrete ppt 1. PHYSICAL PROPERTIES AND APPLICATIONS OF GEOPOLYMER CONCRETE 2. CONTENTS • Introduction • Why not OPC? • OPC usage without environmental impact • Why geopolymer concrete? • Constituents • Process and Mechanism • Types of GPC • Test on GPC • Properties • Applications • Advantages and disadvantages ... Course Overview . The corrosion of reinforcing steel in concrete structures such as buildings, car parks, concrete marine structures, road beds, bridge decks and bridge substructures is a world-wide problem and leads to cracking, staining, spalling from the surface and ultimately structural weakness.
• The two basic means of compaction require mixes of different workabilities: too dry mix cannot be sufficiently worked by hand; and, conversely, too wet mix should ... Total 28 Chapter 5 Fresh Concrete 24 . Poker Vibrator for concrete (internal) Total 28 Chapter 5 Fresh Concrete 25 . Total 28 Chapter 5 Fresh Concrete 26 . Ready-mix concrete (RMC) refers to concrete that is specifically manufactured for delivery to the customer's construction site in a freshly mixed and plastic or unhardened state. Concrete itself is a mixture of Portland cement, water and aggregates comprising sand and gravel or crushed stone.
In its simplest form, concrete is a mixture of paste and aggregates (rocks). The paste, composed essentially of portland cement and water, coats the surface of the fine (small) and coarse (larger) aggregates. Through a series of chemical reactions called hydration, the paste hardens and gains strength to form the rock-like mass known as concrete. Access our countless collection of FREE quality PowerPoint Presentations (PPTs) prepared by elites, capable of providing simplified insight to most advanced & complex topics in Civil Engineering civil ppt
Prestressed Concrete Designppt - Mahidol. After the concrete hardened and had enough strength After the concrete hardened and had enough strength, the tendon was placed inside the duct, stressed, and anchored against concrete Grout may be injected into anchored against concrete. basics of concrete ppt - eu-bibliografieeu Basic Principles of Concrete Design, Construction, and Performance ... Mix Design Mixture Design Concepts PowerPoint Presentation Water-to-Cement Ratio PowerPoint Presentation Voids in Hydrated Cement Voids in Hydrated Cement Paste Voids in Hydrated Cement Paste PowerPoint Presentation PowerPoint Presentation PowerPoint Presentation PowerPoint ...