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5-1-2015· Special Concretes 1. Special Concretes Unit-7 2. Syllabus • Review of behavior and characteristic of high strength concrete, high performance concrete, fiber reinforced concrete, mass concrete, light weight concrete and heavy weight concrete, precast concrete. 3.
26-10-2013· Introduction • Special types of concrete are those with out-of-theordinary properties or those produced by unusual techniques. Concrete is by definition a composite material consisting essentially of a binding medium and aggregate particles, and it can take many forms. • These concretes do have advantages as well as disadvantages. 3.
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Special concretes pdf In the general use of the word concrete, the idea implied is the conventional. special concretes and mortar pdf This term is given to a special method of mortar placement.with the most important special concretes, this article is meant to provide an. P e rties
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
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SPECIAL CONCRETES [PART 02] Fahim Al-Neshawy & Esko Sistonen 09.11.2015 Lecture outcomes ´ Light weight concrete o Light weight aggregate concrete o Aerated concrete o No fines concrete ´ Colored concrete ´ Polymer concretes o Impregnated polymer concretes o Polymer binder concrete o Cement polymer concretes
SPECIAL TYPES OF CONCRETE 5-694.800 5-694.810 GENERAL In the general use of the word concrete, the idea implied is the conventional placement of the material within formed areas where the material will rem ain. There are, however, m any variations of this procedure and a few are listed below. 5-694.811 SHOTCRETE
SPECIAL CONCRETE & CONCRETING TECHNIQUES • 6.1 Light weight concrete • 6.2 Plum concrete • 6.3 Fibre reinforced concrete • 6.4 Polymer concrete • 6.5 High density concrete • 6.6 No fines concrete • 6.7 Ferro cement • 6.8 Fly ash concrete • 6.9 Ready mix concrete • 6.10 Pumped concrete. Lightweight concrete • Lightweight concretes can either be lightweight aggregate
Heavy weight concretes can be suitably used for gravity dams, retaining walls or special atomic power plants, vessels, etc. It is also suited for preparing counter- balance weights for lift bridges and ballast blocks for ships, where the high density of heavy concrete reduces the volume of concrete required to produce the same dead weight, leading to economy.
12-9-2018· WHAT IS SPECIAL CONCRETE? Special concrete is defined as "concrete which meets special performance an uniformity requirements that cannot always be achieved routinely by using only conventional materials and normal mixing, placing and curing practices". TYPES OF SPECIAL CONCRETE 1. High Volume Fly Ash Concrete. 2. Silica fume concrete.
2. 13 SPECIAL CONCRETES Low Cost Light Weight Heavy Weight Underwater Ultra High Strength Ultra Durable Architectural Low Noise Reduced environmental impact Fast setting Placing without formwork Bulk fill Self compacting. Low Cost Cement replacement with PFA also helps durability and workability. Cement replacement with GGBS helps durability but may increase bleeding.
Special Concrete and Applications 42-3 acceptable rate of strength development needed for the construction. Strength development may be monitored by testing specimens cured with the same temperature history as the structure or based on the concept of maturity factor (ASTM C 1074). stone admixtures (non-chloride based) may be added to
A special concrete a concrete made with special ingredients or by a special process may be ideally suited to the need. This article discusses some of the broad possibilities of special concretes. Brief descriptions are given so the reader can be better prepared to explore them in depth when the unusual situations come up.
Consistence (slump) = 75 mm. Max w/c ratio = not specified. Min cement content = not specified 1.64 is from statistics that allows for 5 % failures A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow id: 8f757-NzBmN