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How the moisture content of the aggregates obtainable at site affect the water content ratio specified?
Wiki User
∙ 6y ago
Obviously, if the aggregates are in a surface wet condition, meaning the moisture content is greater than the absorption, that surface water increases the water-to-cement ratio and affects strength and durability.
Hayden Tay
Shanon Bosco
Ayden Metz
Wiki User
∙ 13y agoThe water to cement ratio is integral to finding out the strength of concrete. If fine aggregate has excess water in it, it will skew the amount of water added. The greater the water/cement ratio the weaker the concrete.
kavi nishan
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What s a hygrometer?
It is an instrument to measure moisture content in the atmosphere.
How do you calibrate a hygrometer?
Hygrometer is an istrument to measure moisture content in air, By comparing with master instruments we can calibrate this.
Are there any differences the moisture content of different fruit species?
i'm searching for the answers as well...pls help me!
What are the two conditions which speed up the decay of garden waste in a compost heap?
Well, there are more than two, strictly speaking, but oxygen and moisture content--although it should be understood that one can also have too much moisture.
What are needed for the seed germination?
The conditions necessary for seed germination include:optimum temperature,oxygen,adequate supply of water,sunlight,moisture content,soil ph......
How the moisture content of the aggregates obtainable at site affects the water content ratio specified?
Obviously, if the aggregates are in a surface wet condition, meaning the moisture content is greater than the absorption, that surface water increases the water-to-cement ratio and affects strength and durability.
Why you are doing initial moisture content critical moisture content and equilibrium moisture content test?
if we know initial moisture content of the object we can identify how much drying energy required for dry the same moist material. if it is a food material we have to reduce the moisture content upto certain level, otherwise it may be destroyed. if we know the initial moisture content of same food object, we can reduce its moisture content upto 10% of its initial moisture content.
Maximum bulking in sand and in what moisture content?
The maximum bulking of sand is in 13% to 14% moisture content. It's likely to be 13.8% moisture content.
What are the types of Moisture content in coals?
free moisture inherent moisture
What is one specification used by content aggregates to distribute content?
AToM is a specification sometimes used by content aggregators to distribute content. AToM is short for Any Transport over MPLS.
Why is it that materials with moisture content has high k values?
Discuss why materials with moisture content have high k-values
What is the moisture content of fruit powder?
The moisture content in fruit powder should be zero. Any moisture will cause the powder to cling together, and encourage the growth of mould.
What instruments measure air moisture?
A hygrometer measures the moisture content of the air. There are several different types, all of which measure something else which indicates the moisture content.
What difficulties arise in the use of aggregates which absorb water How theyovercome (a) in the laboratory and (b) on the job?
When using aggregates that absorb water, several difficulties can arise. These difficulties include: Increased water demand: Aggregates that absorb water can increase the water demand in a concrete mix. This can lead to challenges in achieving the desired water-cement ratio and can affect the strength and durability of the concrete. Reduced workability: The absorption of water by aggregates can reduce the workability of the concrete, making it more difficult to place and finish. This can result in issues such as segregation, poor compaction, and difficulty in achieving the desired surface finish. To overcome these difficulties, the following approaches can be taken: (a) In the laboratory: Pre-wetting aggregates: One way to overcome the increased water demand and reduced workability is to pre-wet the aggregates before mixing them with cement and other ingredients. This ensures that the absorbed water in the aggregates is taken into account during the mix design process. It helps maintain the desired water-cement ratio and improves workability. Adjusting mix proportions: The mix proportions can be adjusted by considering the absorption characteristics of the aggregates. By accounting for the water absorption capacity of the aggregates, the required water content can be determined to achieve the desired consistency and workability. (b) On the job: Proper storage and handling: Aggregates should be stored in covered areas or protected from rainwater to prevent additional water absorption. Proper handling practices during transportation and on-site storage can help minimize the absorption of water by aggregates. Moisture control: On-site, measures can be taken to control moisture levels. For example, if the aggregates are excessively dry, they can be sprayed with water to ensure they have the right moisture content before mixing. Conversely, if the aggregates are already saturated, adjustments can be made to the mix design to compensate for the absorbed water. By implementing these strategies, the difficulties associated with the use of aggregates that absorb water can be mitigated, ensuring better concrete performance both in the laboratory and on the job.
How does a moisture meter give a reading of the moisture content of wood?
By passing an electrical current from one pin to the other. The greater the moisture content, the higher the resistance. By measuring the resistance, it gives an estimate of the average moisture content. I think. 2009/03/14 - Correct, but exactly backwards .... Moisture (water) can be a conductor. Dry wood is an insulator. The higher the moisture content, the lower the resistance and vice-versa. Wood with a high moisture content gives a low resistance to the tester and conducts the test voltage better.
What is the moisture content of Colby Jack cheese?
because he lost his mummy oh sorry wrong question
HOW TO Differentiate moisture content from water content?
Moisture content is the amount of water absorbed by the substance due to surrounding humidity while, Water content is the amount of water present as a volatile component of a substance.
