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How the changing of workability when the concrete mixture containing high aggregate content?
Wiki User
∙ 11y ago
Aggregate to cement ratio is an important thing which affects the workability....!
If the aggregate/cement ratio is higher , the concrete will be Leaner. Less quantity of paste is available for lubrication, Hence workability decreases..!!
On the other hand if the aggregate/cement ratio is lower, the concrete will be fatty. Higher quantity of paste is available for lubrication. Hence workability increases. !
Thus Higher aggregate content leads to lowering of workability....!
Wiki User
∙ 11y ago
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What is the effect of grading of aggregate on workability?
Grading of Aggregates enhances workability of concrete.
What is the significance of grading aggregate?
The grading of aggregate influences the mix proportions for a specified workability and water-cement ratio. Coarser the grading leaner will be mix which can be used. Very lean mix is not desirable since it does not contain enough finer material to make the concrete cohesive. The type of aggregate influences strongly the aggregate-cement ratio for the desired workability and stipulated water cement ratio. An important feature of a satisfactory aggregate is the uniformity of the grading which can be achieved by mixing different size fractions.
Does sizes of aggregates affect the compressive strength of concrete?
Larger the size of aggregate will decrease strength of the concrete because surface area of this aggregate is low.Lesser the size of the aggregate will lead to increase the strength of the concrete.Well graded aggregate have all size of particles hence particle interferance is neglected,thus strength of concrete is more.
What are VSI aggregates in concrete making?
The aggregate which are produced from vertical shaft impactor ( the machine which is installed in crusher plant to control the elongated and flaky aggregate ) for concrete.
What is bycol?
Bycol Clear is an air-entraining admixture used to improve the workability of brickwork mortars and concrete mixes.
What is the effect of grading of aggregate on workability?
Grading of Aggregates enhances workability of concrete.
What is the workability of concrete?
The property of concrete which determines the amount of useful work (like- water content, mix proportion, size of aggregate used and use of admixtures) necessary to produce full compaction is called workability.
How to improve the workability of concrete?
To improve the workability of concrete, issue to be concerned of as below: - increase water/cement ratio - increase size of aggregate - use well-rounded and smooth aggregate instead of irregular shape - increase the mixing time - increase the mixing temperature - use non-porous and saturated aggregate - with addition of air-entraining mixtures
What do you mean by workability?
workability is the work of the concrete which is done by concrete ability of work is called workability
What is the measurement of workability?
Workability of Concrete
What is the significance of grading aggregate?
The grading of aggregate influences the mix proportions for a specified workability and water-cement ratio. Coarser the grading leaner will be mix which can be used. Very lean mix is not desirable since it does not contain enough finer material to make the concrete cohesive. The type of aggregate influences strongly the aggregate-cement ratio for the desired workability and stipulated water cement ratio. An important feature of a satisfactory aggregate is the uniformity of the grading which can be achieved by mixing different size fractions.
Is aggregate the same thing as concrete?
Aggregate is the gravel or stone in the concrete. It is what gives concrete it's strength. Think of the aggregate as the bricks of a wall and the concrete and sand as the mortar.
What is the slump test normally used to evaluate?
the workability of a concrete mixture
What factors affect the workability of a concrete mix?
1),water content 2),mix praportions 3),size of aggregates 4),shape of aggregate 5),surface texture 6),grading of aggregates 7),use of admixture
What is the importance of slump test in concrete work?
The importance of slump test in concrete work is to ensure consistency in the concrete. The test measures the workability of the concrete.
What the importance of slump test in concrete work?
The importance of slump test in concrete work is to ensure consistency in the concrete. The test measures the workability of the concrete.
Why it is not suitable for all concrete mixture when the amount of fine aggregate and coarse aggregate is fixed in sieve test?
Why it is not suitable for all concrete mixture when the amount of fine aggregate and coarse aggregate is fixed?
