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- In case of long haul involved in delivering ready-mixed concrete to the site of work, concrete is mixed intermittently to reduce the bad effect of continuous mixing. A pertinentpoint to note in this connection is that when the concrete is mixed or agitated from time to time with a short interval, the normal rule of initial setting time is not becoming applicable.The concrete that is kept in agitation, does not exactly follow the setting time rule as applicable to concrete kept in an unagitated and quiescent condition.
workability is the ease and homogenity with which the concrete can be mixed , transported , poured , consolidated and finished
The more the water cement ratio the more workable the concrete will be , but it does not mean that we should keep on increasing water cement ratio because it will decrease the strength and will cause bleeding and segregation of concrete 08ce69 quaid e awam university nawabshah
What else can I help you with?
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 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 is compacting factor of concrete?
The compacting factor of concrete is a measure of its workability, indicating the ease with which concrete can be mixed, placed, and finished. It is determined by comparing the weight of a partially compacted concrete sample to the weight of the same volume of fully compacted concrete. A higher compacting factor suggests better workability, while a lower factor indicates that the concrete may be too dry or difficult to work with. This test is particularly useful for assessing the suitability of concrete mixes for various construction applications.
What is the difference between concrete grade C35 and C35A?
The main difference between concrete grade C35 and C35A lies in their composition. C35 concrete is a standard concrete mix with a minimum strength of 35 megapascals (MPa), while C35A concrete is a special mix that includes air-entraining agents to improve workability and durability. The inclusion of air-entraining agents in C35A helps to increase the concrete's resistance to freeze-thaw cycles and reduce the risk of cracking. Overall, C35A is more suitable for applications where improved durability and workability are required.
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 effect of grading of aggregate on workability?
Grading of Aggregates enhances workability of concrete.
How the changing of workability when the concrete mixture containing high aggregate content?
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....!
What is the slump test normally used to evaluate?
the workability of a concrete mixture
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.
How does Silpozz impact workability in concrete?
Silpozz improves workability by reducing segregation and bleeding, resulting in a more cohesive and easy-to-handle mix.
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.
Define workability in concrete?
ease with which concrete can be compacted hundred percent having regard to mode of compaction and place of deposition
How can I make moldable concrete?
To make moldable concrete, mix concrete with a polymer additive that increases its flexibility and workability. This allows the concrete to be shaped and molded into various forms before it hardens.
Why is the slump not a direct measure of workability?
The slump test measures the consistency and flow of fresh concrete but does not directly quantify workability. Workability encompasses various factors, including the ease of mixing, placing, and finishing, which are influenced by aggregate shape, size, and moisture content. Additionally, different mixes with the same slump may exhibit varying workability due to differences in material properties and proportions. Therefore, while the slump provides useful information, it does not fully capture the overall workability of concrete.
