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If you are talking about shrinkage, then quite a bit. To make concrete, cement and water react together. There is a specific amount of water required to hydrate the concrete. Any water extra must leave the concrete and while it makes the concrete more workable, hurts the concrete is several ways. The volume of the concrete will change by whatever excess water you have added. To get workability, it's always best to use a water reducing admixture.
What else can I help you with?
Is slump value related to compaction factor?
Yes, slump value and compaction factor are both measures of concrete workability, but they assess it in different ways. The slump test measures the vertical settling of a concrete cone to determine its consistency and fluidity, while the compaction factor test measures the degree of compaction achieved by a specific amount of concrete when subjected to compaction. Generally, a higher slump indicates a more workable mix, which can correlate with a higher compaction factor, though they do not always directly correspond. Both tests provide valuable insights into the behavior of concrete during placement.
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.
Why the compacting factor test must do fast after the concrete was mixed?
Because the cement will damage
Why is fly ash used in construction?
As pozzolan greatly improves the strength and durability of concrete, the use of ash is a key factor in their preservation and add to the concrete's final strength and increase its chemical resistance and durability.It can also increase workability of cement while reducing water demand. The replacement of Portland cement with fly ash also reduces the greenhouse gas foot print of concrete, as the production of one ton of Portland cement produces approximately one ton of CO2. Since the worldwide production of Portland cement is expected to reach nearly 2 billion tons by 2010, replacement of 30% of this amount by fly ash could dramatically reduce global carbon emissions.
How do you store cement?
A dry environment is the most important factor when storing cement. yes, yes i think that the guy who wrote the answer above is corredt :) X X X
Is slump value related to compaction factor?
Yes, slump value and compaction factor are both measures of concrete workability, but they assess it in different ways. The slump test measures the vertical settling of a concrete cone to determine its consistency and fluidity, while the compaction factor test measures the degree of compaction achieved by a specific amount of concrete when subjected to compaction. Generally, a higher slump indicates a more workable mix, which can correlate with a higher compaction factor, though they do not always directly correspond. Both tests provide valuable insights into the behavior of concrete during placement.
What is compaction ratio of concrete?
The Compacting Factor = Weight of partially compacted concrete/Weight of fully compacted concrete.The weight of fully compacted concrete can also be calculated by knowing the proportion of materials, their respective specific gravities, and the volume of the cylinder.It is seen from experience, that it makes very little difference in compacting factor value, whether the weight of fully compacted concrete is calculated theoretically or found out actually after100 per cent compaction.
Why is compacting factor test is better than slump test for concrete?
compaction factor test is better than slump test,because compaction factor test should have own compaction wight,so correct value will be find out from compaction factor test.........
What is the process of calculating quantity of cement sand metal in concrete mix design?
Choose the grade of concrete & assume minimum water/cement ratio.Conduct some initial tests on the materials like cement, sand & metal(coarse aggregate).Tests like UNIT WEGHT, SPECIFIC GRAVITY,SIEVE ANALYSIS,SLUMP CONE TEST & COMPACTION FACTOR TEST. According to the obtained results do the mix design from IS CODE of IS800-10262 check for water cement ratio & calculate the quantity of cement, sand & coarse aggregate.
What is clinker factor in cement?
Clinker factor in cement refers to the percentage of clinker in the total mass of the cement. Clinker is the main component in cement production and is produced by heating a mixture of raw materials to a high temperature. A lower clinker factor indicates a more sustainable cement production process, as it reduces carbon dioxide emissions associated with clinker production.
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 are the limitations of the slump test?
Pavement quality concrete, (PQC) measurement of workability by determination of compacting factor will be more appropriate than slump.It is not a suitable method for very wet or very dry concrete.It does not measure all factors contributing to workability, nor is it always representative of the placability of the concrete.
How do soils and their chemical composition effect design and construction within the construction industry?
The composition of soil is directly related to density and water retention level. These factors are important in determining the level of soil compaction necessary to hold a stucture's given weight without sinking or shifting. There are other factors that relate to health codes, environment, etc., but compaction is the most obvious factor in building construction.
Why the compacting factor test must do fast after the concrete was mixed?
Because the cement will damage
Why is fly ash used in construction?
As pozzolan greatly improves the strength and durability of concrete, the use of ash is a key factor in their preservation and add to the concrete's final strength and increase its chemical resistance and durability.It can also increase workability of cement while reducing water demand. The replacement of Portland cement with fly ash also reduces the greenhouse gas foot print of concrete, as the production of one ton of Portland cement produces approximately one ton of CO2. Since the worldwide production of Portland cement is expected to reach nearly 2 billion tons by 2010, replacement of 30% of this amount by fly ash could dramatically reduce global carbon emissions.
How do you store cement?
A dry environment is the most important factor when storing cement. yes, yes i think that the guy who wrote the answer above is corredt :) X X X
What does compaction in rock science mean?
In rock science, compaction refers to the process of reducing the volume of sedimentary rocks by the weight of overlying sediment and rock layers. This process occurs due to the removal of pore space between sediment grains, which increases the density and strength of the rock. Compaction is a key factor in the formation of sedimentary rocks such as sandstone and shale.
