concrete workability civil engineering

Concrete Workability Civil Engineering

Vicat Needle Test. The setting time of concrete, mortar, or paste can be measured as an indication of workability (Ferraris 1999). One of the most common tests is the Vicat needle test for testing cement paste (ASTM C191). The Vicat needle test is also used in ASTM C953 for grout for pre-placed aggregate concrete.

get price

Concrete Workability - Mo Civil Engineering

Concrete workability is a property of concrete determining the ease of mixing, placing and compacting concrete with minimum loss of homogeneity.. Factors affecting workability W/C: increasing of water-cement ratio will increase concrete workability but it will reduce the strength of the concrete mix. increasing water-cement ration will increase concrete permeability and this will reduce ...

get price

Workability of Concrete - Civil Engineering Knowledge Base

Apr 03, 2017  Workability of concrete is defined as the ease and homogeneity with which a freshly mixed concrete or mortar can be mixed, placed, compacted and finished. ... Civilax is the Knowledge Base covering all disciplines in Civil Engineering. We aim to close the gap to the industry by improving the awareness about latest trends in Civil Engineering.

get price

What is Workability of Concrete? - Explore Civil Engineering

The term workability indicates the ease or difficulty with which the concrete is handled, transported and placed. The amount of water present in concrete should be in the proper ratio. Generally, a higher water-cement ratio is required for good workability. In the actual function of water is to lubricate the concrete.

get price

Workability of Concrete – Civil Engineering Adda

Feb 19, 2021  Air entrained concrete are more workable because air forms bubbles, on which the aggregate slide past each other increasing the workability. Similarly, the fine glassy pozzolanic materials, Inspite of increasing the surface area, offer better lubricating effects for giving better workability. Recommended Book For Civil Engineering Interview ...

get price

What is Workability of Concrete? - Gilson Co.

The slump test was introduced in 1918 by Duff Abrams, a prolific American civil engineer, and concrete researcher, as part of his work defining the effects of water/cement ratio on concrete strength. The test is performed with the slump cone, originally called the Abrams cone, and provides a qualitative measurement of workability but not a ...

get price

Workability of Concrete - Civil Engineering

Feb 10, 2017  Workability is one of the physical parameters of concrete which affects the strength and durability as well as the cost of labor and appearance of the finished product. Concrete is said to be workable when it is easily placed and compacted homogeneously i.e without bleeding or Segregation. Unworkable concrete

get price

Workability of Concrete - Definecivil - Civil Engineering ...

Aug 20, 2019  The most common construction materials in civil engineering are – concrete, wood / timber, steel, bricks, stone, blocks, sand, clay. I’ve placed concrete at the first because it is the most common construction material in civil engineering projects. ... Medium Workability concrete: For structures involving light reinforcement i.e. rebars do ...

get price

Factors Affecting Workability of Concrete - Civil Engineering

Workability is a property of raw or fresh concrete mixture. In simple words, workability means the ease of placement and workable concrete means the concrete which can be... Factors Affecting Workability of Concrete - Civil Engineering

get price

Workability of concrete - Civil Engineering

Feb 14, 2021  WORKABILITY OF CONCRETE : The property of concrete which determines the amount of useful internal work ,necessary to produce full compaction i.e workability is the amount of energy to overcome Friction while compacting. Also defined as the relative ease with which concrete can be mixed ,transported, moulded and compacted.

get price

Workability of concrete and Compaction factor test ...

Sep 11, 2017  Any surplus concrete from the cylinder is removed in the manner explained before. The weight W 2 of the concrete in the cylinder is found out. The ratio of the two weights W 1 /W 2 is known as the compaction factor. A compaction factor of 0.85 represents a mix of poor workability, 0.92 represents medium and 0.95 good workability.

get price

Properties of Concrete - Workability ... - Civil Engineering

Mar 19, 2017  Workability of Concrete. Workability is often referred to as the ease with which a concrete can be transported, placed and consolidated without excessive bleeding or segregation. OR. The internal work done required to overcome the frictional forces between concrete ingredients for

get price

What is Workability of Concrete? - Gilson Co.

The slump test was introduced in 1918 by Duff Abrams, a prolific American civil engineer, and concrete researcher, as part of his work defining the effects of water/cement ratio on concrete strength. The test is performed with the slump cone, originally called the Abrams cone, and provides a qualitative measurement of workability but not a ...

get price

CIVIL ENGINEERING: CONCRETE TECHNOLOGY (WORKABILITY

Sep 07, 2011  Workability can be measured by the concrete slump test, a simplistic measure of the plasticity of a fresh batch of concrete following the ASTM C 143 or EN 12350-2 test standards. Slump is normally measured by filling an "Abrams cone" with a sample from a fresh batch of concrete.The cone is placed with the wide end down onto a level, non-absorptive surface.

get price

Workability Concrete Civil Engineering

May 09, 2017  " I am grateful for the hard work and exemplary service provided by Concrete Civil and team. They are a fruitful source of all Civil Engineering information available. They are a fruitful source of all Civil Engineering information available.

get price

Measure Workability of Concrete in Mixer Civil Engineering

The results could also be influenced by the quantity of concrete in the truck and the density of the concrete. A separate but similar device called a plastograph (Wong et al. 2000) was used by the US Army Corp of Engineers. The device measures the flow of concrete in a concrete mixer, which is then related to slump. Advantages:

get price

CONCRETE TECHNOLOGY STUDY MATERIAL FOR SSC JE BY ...

Several tests which have been developed to measure the workability of concrete are: Slump test Compaction factor test ; Vee-Bee test, and ; Vibro-workability test. MADE EASY CIVIL ENGINEERING GATE NOTES PDF: CLICK HERE. Slump Test. Diameter of the rod is 16 mm. and its length is 60 mm. The strokes are given for ramming vary from 20 to 30.

get price

Workability of concrete - Types and Effects on Concrete ...

Jun 07, 2020  The quality of concrete satisfying the above requirements is termed as workable concrete. The word “workability” or workable concrete signifies much wider and deeper meaning than the other terminology “consistency” often used loosely for workability. Consistency is a general term to indicate the degree of fluidity or the degree of mobility.

get price

Factor Controlling Workability of Concrete - Civil ...

Jan 07, 2020  Concrete in fresh state is moldable mix which can be placed with reasonable amount of compaction and finished with selected means. The two qualifying words (adjective), reasonable and selected are actually refer to workability.A concrete is said to be workable when internal and external friction can be overcome with reasonable amount of effort exerted by compaction which indicates

get price

Workability of Concrete and the Factors Influencing its ...

Feb 14, 2017  Workability of concrete is directly proportional to the water content. In other words, the higher the water content in concrete, the higher is the workability as the water content per cubic meter of concrete would increase for higher water/binder ratios. For a workable concrete, a water/binder ratio of 0.45 to 0.55 is generally used.

get price

Workability of Concrete online civil engineering

Nov 18, 2014  The term workability is used to describe the ease or difficulty with which the concrete is handled, transported and placed between the forms with minimum loss of homogeneity.However this gives a very loose description of this vital property concrete which also depends on the means of compaction available.For instance, the workability suitable for mass concrete is not necessarily

get price

What is Workability of Concrete? - Gilson Co.

The slump test was introduced in 1918 by Duff Abrams, a prolific American civil engineer, and concrete researcher, as part of his work defining the effects of water/cement ratio on concrete strength. The test is performed with the slump cone, originally called the Abrams cone, and provides a qualitative measurement of workability but not a ...

get price

Workability of Concrete and the Factors Influencing its ...

Feb 14, 2017  Workability of concrete is directly proportional to the water content. In other words, the higher the water content in concrete, the higher is the workability as the water content per cubic meter of concrete would increase for higher water/binder ratios. For a workable concrete, a water/binder ratio of 0.45 to 0.55 is generally used.

get price

Properties of Concrete - Workability ... - Civil Engineering

Mar 19, 2017  Workability of Concrete. Workability is often referred to as the ease with which a concrete can be transported, placed and consolidated without excessive bleeding or segregation. OR. The internal work done required to overcome the frictional forces between concrete ingredients for

get price

Workability of concrete - Types and Effects on Concrete ...

Jun 07, 2020  The quality of concrete satisfying the above requirements is termed as workable concrete. The word “workability” or workable concrete signifies much wider and deeper meaning than the other terminology “consistency” often used loosely for workability. Consistency is a general term to indicate the degree of fluidity or the degree of mobility.

get price

Workability Concrete Civil Engineering

May 09, 2017  " I am grateful for the hard work and exemplary service provided by Concrete Civil and team. They are a fruitful source of all Civil Engineering information available. They are a fruitful source of all Civil Engineering information available.

get price

7 Factors that Affect the Workability of Concrete » Civil ...

Mar 03, 2020  For a concrete technologist, he/she should have a comprehensive knowledge of workability to design a mix. Workability is a parameter, a mix designer is required to specify in the mix design process, with a full understanding of the type of work, distance of transport, loss of slump, method of placing, and many other parameters involved.

get price

Factor Controlling Workability of Concrete - Civil ...

Jan 07, 2020  Concrete in fresh state is moldable mix which can be placed with reasonable amount of compaction and finished with selected means. The two qualifying words (adjective), reasonable and selected are actually refer to workability.A concrete is said to be workable when internal and external friction can be overcome with reasonable amount of effort exerted by compaction which indicates

get price

Concrete technology Archives Civil Engineering Courses

WORKABILITY OF CONCRETE It is the amount of work required to place concrete and to compact it thoroughly. Workability of concrete increases with the addition of water but it reduces the strength and as such it is not a very desirable way of Workability of concrete

get price

CONCRETE TECHNOLOGY STUDY MATERIAL FOR SSC JE BY ...

Several tests which have been developed to measure the workability of concrete are: Slump test Compaction factor test ; Vee-Bee test, and ; Vibro-workability test. MADE EASY CIVIL ENGINEERING GATE NOTES PDF: CLICK HERE. Slump Test. Diameter of the rod is 16 mm. and its length is 60 mm. The strokes are given for ramming vary from 20 to 30.

get price

1.Workability of concrete... - Civil Engineering Mcq ...

5. Workability of concrete is inversely proportional to _____ a) Grading of the aggregates b) Time of transit c) Aggregates cement ratio d) Water cement ratio. Answer: d Explanation: Workability of concrete is inversely proportional to the Water cement ratio because if the amount of w/c ratio increases, workability decreases.

get price

Slump Testing of Concrete - Civil Engineering

Feb 17, 2019  Note: FA = Fine Aggregates, and CA = Coarse Aaggregates. Theory. Concrete slump test, which gives a measure of the workability of the mix in terms of a slump. The slump is observed after the subsidence of a concrete mix. The theory of the slump test is described below. One can get a fairly good idea of cohesiveness by gently tapping the platform on which cone stands.

get price

Properties of Concrete every civil engineer must know

Apr 08, 2018  Properties of Concrete: Concrete is a composite material obtained by mixing Cement, sand, aggregates, and water in suitable proportions. Concrete has become a universal building material which is extensively used in civil engineering construction.

get price

What is Workability of concrete - Civil Experience

The word ‘workability’ notes a much wider and deeper meaning than the word ‘consistency’ Consistency is a general term in civil engineering which indicate the degree of mobility/fluidity The workability of concrete can be improved greatly by adopting and improving the above requirement

get price