CONCRETE definition: 1. a very hard building material made by mixing together cement, sand, small stones, and water: 2…. Learn more.

Concrete definition: an artificial, stonelike material used for various structural purposes, made by mixing cement and various aggregates, as sand, pebbles, gravel, or shale, with water and allowing the mixture to harden.. See examples of CONCRETE used in a …

of a cement based mortar mixed with at least 20% of volume air. The material is now being used in an ever increasing number of applications, ranging from one step house casting to low density void fills. Light weight concrete is a special concrete which weighs lighter than conventional concrete.

Some special properties — increased compressive and tensile strength, water proofing, and improved chemical resistance are achieved with polymers, either as admixtures or surface treatment of hardened concrete. Admixtures for coloring concrete are available in all colors. The oldest and cheapest is perhaps carbon black.

Most of the mega concrete projects are carried out through prestressed concrete units. This is a special technique in which the bars or the tendons used in the concrete is stressed before the actual service load …

1. The concrete mix is workable.It can be placed and consolidated properly by yourself or your workmen. 2. Desired qualities of the hardened concrete are met: for example, resistance to freezing and thawing and deicing chemicals, watertightness (low permeability), wear resistance, and strength. Know what you are trying to achieve with the concrete.

concrete: [adjective] naming a real thing or class of things.

The Low Down on Testing and Special Inspection Topics May 2017 Special inspections is defined by the current International Building Code (IBC) as the "inspection of construction requiring ... Code Requirements for Structural Concrete", AISC 360 "Specification for Structural Steel Buildings", TMS 402 "Building

Light weight concrete: Lightweight cements can either be lightweight total cement, frothed cement or autoclaved circulated air through cement (AAC). Lightweight solid squares are frequently utilized in house development. Light weight total cement: Lightweight total cement can be delivered utilizing an assortment of lightweight totals.

1. Special concrete is suitable for extreme weather. 2. HPC has been applied in big structures. 3. Strong cohesiveness or sticky in mixes containing extreme binder content. 4. Some loiter in setting times is based on the compatibility …

🕑 Reading time: 1 minuteAs the name of the cement denotes, hydro means water and phobic means against. Hydrophobic cement is obtained by grinding portland cement clinker with a film-forming substance such as oleic acid in order to reduce the rate of deterioration when the cement is stored under unfavourable conditions. It is also known as Hydrographic …

Permeable concrete, also called pervious concrete, is a special concrete type prepared to allow water to deliberately infiltrate through it and get drained. The purpose of doing this can be twofold. Firstly, it helps reduce the runoff from a site and secondly, it can effectively serve as a method of ground water recharge.

Cellular concrete is a special engineered concrete manufactured by mixing Portland cement, sand, fly ash, water and pre-formed in varied proportions to form a hardened material having an oven-dry density of 50 pounds per cubic foot (PCF) or less. As per the definition by ACI, the density of the cellular concrete must be lesser than 50 ...

concrete, in construction, structural material consisting of a hard, chemically inert particulate substance, known as aggregate (usually sand and gravel), that is bonded together by cement and …

The uses of special types of concretes are as follows. i) Vacuum concrete: It is the concrete in which entrained air and excess water form concrete mix is taken out from vacuum pump, called vacuum concrete.. Use: i. Industrial floor sheds. ii. Hydro power plants. iii. Bridges, ports and harbours

Definition: A Concrete Construction Special Inspector is a person qualified to inspect and record the results of concrete construction inspection based on codes and job specifications. The program covers inspection during preplacement, placement, and post-placement operations. An Associate Concrete Construction Special Inspector is a …

Mass concrete is defined as heavy volume concrete work with large dimensions and boundary conditions that are prone to elevated temperatures due to a higher rate of the heat of hydration. The high temperature in concrete results in high thermal stresses, cracking, and reduced long-term strength gain. Hence, the main factor distinguishing mass ...

Special Concrete Cost-Benefit Analysis; Fiber-reinforced concrete has a high starting cost when utilized as translucent concrete. However, some businesses have devised a solution. An economic building can be …

Civil Engineering Engineering Materials Concrete Applications of special concrete. Special concrete can be used in extreme weather, can have good protection for steel …

A concrete noun is a noun that refers to a physical thing, person, or place—something or someone that can be perceived with the five senses (touch, hearing, sight, smell, and taste). Examples include "pencil," "dog," "Timbuktu," and "Patricia.". Concrete nouns are contrasted with abstract nouns, which are words such as ...

permit the vertical elements to be either special moment frames or special structural walls. This Guide is written to describe the use, analysis, design, and construction of special reinforced concrete moment frames. NIST GCR 11-917-11REV-1, Seismic design of cast-in-place concrete special structural walls and coupling beams: A guide for

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What is Special Concrete? "Special concrete" is described as "concrete that must meet special performance and consistency standards that are not always met by normal …

Special concrete is described as concrete that satisfies unique performance and uniformity standards. The standards are not necessarily routinely achievable by utilizing the standard components …

Concrete Definition: Concrete, an artificial stone-like mass, is the composite material that is created by mixing binding material (cement or lime) along with the aggregate ( sand, gravel, stone, brick chips, etc.), water, admixtures, etc in specific proportions. The strength and quality are dependent on the mixing proportions.

Concrete can withstand a great amount of compressive stress but it has a very low tensile strength. Because of low tensile strength, concrete gets cracks when subjected to maximum load.. As the name indicates prestressed concrete is a form of concrete in which internal stresses are introduced before its application so that it can counteract the tensile …

Concrete poetry is a kind of writing that focuses on the shape words make on the page. Often, the visual impact of the poem is more important than the text itself. This means that formal choices, like meter and the length …

UNIT 3-SPECIAL CONCRETES 2 MARKS 1. Define polymer concrete. (April/May 2018) Polymer concrete is an aggregate bound polymer binder instead of Portlandcement as in conventional concrete polymer concrete is normally used to minimizevoids volume in aggregate mass. This can be achieved by property grading

Concrete is a mixture of several materials. At the hardened state, this heterogeneous material becomes stone-like mass. The extensive use of concrete in the construction field has made it a material of huge concern for engineers. To participate in the vast uses of concrete an engineer must know its properties.

Some special properties — increased compressive and tensile strength, water proofing, and improved chemical resistance are achieved with polymers, either as admixtures or surface treatment of …

strained special-purpose concrete ; special concretes (heat-resistant, road, hydraulic, chemical-resistant, artificial stone, radiation-protective, heat-insulating, etc.) Concrete quality. The following classes and grades determine the main quality rating of concrete: a. concrete class according to compressive strength "B"; b.

Special Concrete means the concrete used or made for special cases, such as: Frequently, concrete may be used for some …

The concrete which is made unique to withstand any specific aggressive condition or situation is known as special concrete. This will be attained by either changing the core ingredients or by the manufacturing process or by the combination of both. The mix ratio will differ from the … See more

Special concretes are the concrete prepared for specific purpose like light weight, high density, fire protection, radiation shielding, etc. concrete is a versatile material processing good compressive strength.

In general, all of them can be grouped under the term special concrete. The five most important types of special concrete are briefly described below: fiber …

Date: 2/1/1999. Ever since the terminology "high-performance concrete" (HPC) was introduced into the industry, there have been numerous attempts to develop a definition. In 1998, the Technical Activities Committee and its subcommittee on high-performance concrete derived and approved an official ACI definition: "high-performance concrete ...

Special cements are cements that serve some specific function such as altering the setting or hardening behavior of a concrete, producing different colors …

Special types of concrete are those with out-of-the-ordinary 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.