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Special concrete - Download as a PDF or view online for free. Submit Search. Special concrete ... • Both fly ash and GGBS are processed by appropriate technology and used for concrete works in the form of geopolymer …
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3D CONCRETE 3D concrete is an emerging technology that combines digital technologies and new insights from material technologies to allow free-form construction without the use of formwork. It is a type of additive manufacturing technique where the construction is through layer-by-layer addition of material.
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13. Mechanism- phenolphthalein solution The colourless acid-base indicator (phenolphthalein solution) monitoring the carbonation depth is by capturing the depth at which the pH is about 9.2. It indicates the boundary at which the carbonated front meets with the uncarbonated concrete, where concrete is alkaline . There is a partially carbonated zone where …
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Download ppt "Concrete Technology." What is Hydraulic Cement Concrete? A homogeneous mixture of aggregates held together by a hardened hydraulic cement paste While concrete …
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Lesson: Concrete Technology - Building Materials The quality of aggregate affect the durability and strength of concrete. Since about 3/4 of the volume of concrete is occupied by aggregate. Read less
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Ready-mix concrete is also termed as the customized concrete products for commercial purpose. 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.
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Concrete Technology: Theory and Practice" gives students of Civil Engineering a thorough understanding of all aspects of concrete technology from first principles. It covers types of Cement, Admixtures, Concrete strength, durability and testing with reference to …
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Generally 1:2:4 and 1:1.5: 3 ratios of RCC are used in construction work. RCC 1:2:4 Where cement concrete 1:2:4 is used; it means 1 part of cement 2 parts of fine aggregate/coarse sand and 4 parts of coarse aggregate. This ratio of cement concrete gives high strength of cement concrete and is recommended for following works.
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R.C.C. (Reinforced Cement Concrete) : Concrete is good in resisting compression but is very weak in resisting tension. Hence reinforcement is provided in the concrete wherever tensile stress is expected. The best …
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SELF COMPACTING CONCRETE Dr.: GAMAL ABD EL-AZIZ. Selfcompactingconcrete • Basic principles of scc and properties of hardened concrete • Requirements and mode of action of scc • Mix design and mixing of concrete • Transport,casting,surface finish and working environment • Test methods. Abstract • Originally …
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ii) The trap-door is opened so that the concrete falls into the lower hopper. iii) The trap-door of the lower hopper is opened and the concrete is allowed to fall into the cylinder. iv) The excess concrete remaining above the top level of the cylinder is then cut off with the help of plane blades. v) The concrete in the cylinder is weighed.
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Self Loading Concrete Mixer - The rapid growth and advanced road construction techniques are expected to use Self Loading Concrete Mixer that will assist in improving productivity since they allow faster, easy and convenient loading. Asphalt roads are the most common forms used all over the world. The development of these roads is associated with numerous areas where …
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If you're amongst the science and technology teachers, students, or businesses in the field; we have something for you. We deep-dived to find the best free technology PowerPoint templates for your presentation, so today's collection has 28 amazing designs to choose from.. The following selection has templates related to science, technology, cybersecurity, search engines, bitcoin ...
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The PowerPoint PPT presentation: "CONCRETE TECHNOLOGY" is the property of its rightful owner.
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Temperature of concrete 50 – 300 Ideal 300 – 600 (Reduction in UPV up to 5%) Below 50 (Increase up to 7.5%) 4. Moisture condition of concrete (pulse velocity is proportional to moisture content) 5. Presence of reinforcing steel (UPV of R/f is 1.2 to 1.9 times than normal concrete) 6. Stress Level in concrete FACTORS AFFECTING TEST RESULTS
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Structural Light weight Concrete. Lightweight concrete can be defined as a type of concrete which includes an expanding agent in that it increases the volume of the mixture while giving additional qualities and lessened the dead weight.
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PROCEDURE: *About 14 litres of concrete is taken and fill the vertical section of L-BOX. *Lift the gate and allow the concrete to flow out into the horizontal section. *Start the stop watch and note down the time taken to reach 200 and 400mm marks. *When the concrete stop flowing the heights H1 and H2 are measured. *Calculate blocking ratio H2/H1.
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3. General • Special concretes are the concrete prepared for specific purpose like light weight, high density, fire protection, radiation shielding etc. concrete is a versatile material possessing good compressive strength. But it suffers from many drawbacks like low tensile strength, permeability to liquids, corrosion of reinforcement, susceptibility to chemical attack …
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CMD can be defined as process of selecting suitable ingredients of concrete and determining their relative proportions with object of producing concrete of certain minimum strength and durability as economically as possible.
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• Fabric and concrete are alternately inserted into moulds at intervals of approximately 2 mm to 5mm. MANUFACTURING PROCESS • Light-transmitting concrete is produced by adding 4% to 5% optical fibres by volume into the concrete mixture. • The concrete mixture is made from fine materials and does not contain coarse aggregate.
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Reinforced Concrete Design Lecture 3 Dr. Nader Okasha. Introduction to Design Concepts. Objectives of Structural Design: • The design of a structure must satisfy three basic requirements: • Strength to resist safely the …
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11. Figure 1. Slump Flow Test The slump flow test is used to assess the horizontal free flow of SCC in the absence of obstructions. On lifting the slump cone, filled with concrete, the concrete flows. The average diameter of the …
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PULL-OUT TESTS ON CONCRETE A pull-out test measures, with a special ram, the force required to pull from the concrete a specially shaped steel rod whose enlarged end has been cast into the concrete to a depth of 3 in. (7.6 cm). The concrete is simultaneously in tension and in shear, but the force required to pull the concrete out can be related ...
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8. • There are two processes known as "wet" and "dry" processes depending upon whether the mixing and grinding of raw materials is done in wet or dry conditions. • With a little change in the above process we have the semi- dry process also where the raw materials are ground dry and then mixed with about 10-14 per cent of water and further burnt to clinkering …
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self compacting concrete - Download as a PDF or view online for free. ... "Concrete technology (theory and practice), S. Chand & Company LTD. 2002 5. IS 456-2000 Code of practice for plain and reinforced concrete (3rd 6. …
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GREEN BUILDING. Green Building Green building - also known as sustainable or high performance building - is the practice of: • Increasing the efficiency with which buildings and their sites use and harvest energy, water, and materials; and • Protecting and restoring human health and the environment, throughout the building life-cycle: siting, design, construction, …
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concrete technology: Author: M L Gambhir: ISBN: 9780070583740 / 0070583749: Year: 2013: File Size: 35.4 : Total Downloads: 695: Total Views ... Summary. Download concrete technology PDF Description... Similar Free PDFs. concrete technology. 2013; Fulton's concrete technology. 2009; Concrete technology : theory and practice. 792 Pages; 2013 ...
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REINFORCED CONCRETE DESIGN.pptx - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. This document discusses key properties of reinforced concrete, …
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26. Concrete Floor - Two-Way Slab and Beam Two-way slab and beam construction is effective for medium spans and heavy loads, or when a high resistance to lateral forces is required. For economy, however, two-way slabs are usually constructed as flat slabs and plates without beams. A two-way slab of uniform thickness may be reinforced in two directions …
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Ready Mix Concrete.pptx - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. Ready Mix Concrete (RMC) is manufactured off-site at factories or batching plants and transported to construction sites in transit mixers. It contains a customized mix of cement, aggregates, admixtures, and water designed …
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Download Special concrete- concrete technology and more Construction Lecture notes in PDF only on Docsity! Special concretes - Lightweight concrete- Description of various types -High strength concrete - …
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In the dynamic world of construction, the phrase "Reinforced Cement Concrete" (RCC) has become synonymous with durability, strength, and innovation. This construction technique has revolutionized the way we build structures, ensuring they stand the test of time. In this blog post, we will delve into the intricacies of RCC, exploring its components, advantages, …
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Ready Mix Concrete Ready-mix concrete (RMC) is a ready-to-use material, with predetermined mixture of Cement, sand, aggregates and water. "Ready mix concrete is concrete whose components are proportioned away from the construction site for delivery to the construction site by the truck in a ready-to-use-condition." 3
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4. INTRODUCTION Concrete is the most widely used construction material in India with annual consumption exceeding 100 million cubic meters. High performance concrete is a concrete in which certain characteristics are developed for a particular application and environment, so that it will give excellent performance in the structure in which it will be placed. …
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