Bulking of sand and its effect on yield of concrete
Welcome to Cina Charm

Bulking of sand and its effect on yield of concrete.

Bulking of sand and its effect on yield of concrete - Blogger

Bulking of sand and its effect on yield of concrete. (i) The increase in volume of sand due to moisture content is called bulking. Fine sands bulk more than coarse sands. Fully saturated sand occupies the same volume as dry sand. So, an easy way of determining the bulking of sand is by finding the decrease in volume of the given sand when fully ...

Get Price

Bulking of sand - (Factor affecting, Significance, and ...

So, to overcome this the volume of sand is increased by percentage bulking. Here are some effects of bulking sand on concrete: The yield strength of the concrete is affected by the bulking of concrete. The water in the sand is useful for maintaining the water-cement ratio that helps in improving the workability. An excessive amount of moisture ...

Get Price

Bulking of Sand in Concrete - Cement Concrete in India

Jul 17, 2020  Free moisture content in sand causes an increase in its volume; this is known as the Bulking of Sand. Sand enhances the density and workability of concrete and reduces permeability thus helps in increasing the compressive strength of concrete. The presence of silt/clay in the sand should not be more than 7% by volume and not than 3% by weight.

Get Price

Bulking of Sand – Cause, Tests and Importance - The ...

May 10, 2010  When concrete proportioning is to be performed, the sand bulking issues is a concern. If the effect of bulking is not studied properly, the concrete designed will have an insufficient amount of sand resulting in a harsh mix. Bulking of sand will affect the yield of concrete

Get Price

What is the effect of bulking sand in a concrete mix? - Quora

Bulking of sand cause due to presence of moisture / water in sand. Bulking means increase in volume of sand. Unless you are doing volume batching for concrete, it wont affect the proportions of ingredients much. For batching, you need to do correc...

Get Price

What is Bulking of Sand and its effect Civil4M

Nov 21, 2017  Pune. Oct 18, 2017. #1. Bulking of Sand. Bulking of sand is nothing but the change in volume of sand due to presence of water / moisture in it. Finer the sand more it tend to change the volume when water is present in it and vice a versa. The properties of sand available at each local location may have different properties including its gradation.

Get Price

Bulking of sand – (Factor affecting, Significance, and ...

Here are some effects of bulking sand on concrete: The yield strength of the concrete is affected by the bulking of concrete. The water in the sand is useful for maintaining the water-cement ratio that helps in improving the workability. An excessive amount of moisture can reduce the strength of concrete.

Get Price

Bulking of Sand – Cause, Tests and Importance - The ...

When concrete proportioning is to be performed, the sand bulking issues is a concern. If the effect of bulking is not studied properly, the concrete designed will have an insufficient amount of sand resulting in a harsh mix. Bulking of sand will affect the yield of concrete for a given cement content.

Get Price

Bulking Of Sand - its 2 [Tests, Causes Importance]

May 03, 2020  The concrete designed will have an insufficient amount of sand resulting in a harsh mix if the effect of bulking is not studied properly and the bulking of sand will affect the concrete yield for given cement content.

Get Price

What is the effect of bulking sand in a concrete mix? - Quora

Bulking of sand cause due to presence of moisture / water in sand. Bulking means increase in volume of sand. Unless you are doing volume batching for concrete, it wont affect the proportions of ingredients much. For batching, you need to do correc...

Get Price

What Is Bulking of Sand Bulking of Sand Is Caused Due to ...

The extent of bulking of sand can be estimated by a simple field test. A sample of moist fine aggregate or sand is filled into a measuring cylinder in the normal manner.; Mark that level in the measuring cylinder, and denote the point with “ h 1 “. Now pour water into the measuring cylinder and completely inundate the sand and shake it.; As we know that the volume of the saturated sand is ...

Get Price

Bulking-in-Sand.docx - BULKING IN SAND Name Castro Cheasy ...

Therefore, it is absolutely necessary that consideration must be given to the effect of bulking in proportioning the concrete by volume. If care is not given to the effect of bulking, in the case of volume batching, the resulting concrete is likely to be undersanded and harsh. It will also affect the yield of concrete for a given cement content.

Get Price

What is Bulking of Sand and its effect Civil4M

Nov 21, 2017  Pune. Oct 18, 2017. #1. Bulking of Sand. Bulking of sand is nothing but the change in volume of sand due to presence of water / moisture in it. Finer the sand more it tend to change the volume when water is present in it and vice a versa. The properties of sand available at each local location may have different properties including its gradation.

Get Price

What is Bulking of Sand? Its Calculation, Classification.

When the moisture content is increased beyond 8-10 percent, the bulking of sand effect almost disappears. In fact, sand grains settled in a water tank will have the same volume as dry sand. The quality of sand is determined concerning its clay content, contamination with organic impurities, and its salt encrustations.

Get Price

BULKING OF FINE AGGREGATE - WHAT, WHY HOW? -

Feb 11, 2014  Since the volume of the saturated sand is the same as that of the dry sand, the saturated sand completely offsets the bulking effect. Note down the level of sand, say h 2. Subtract the final level h2 from initial level h1 (i.e. h 1-h 2), which shows the bulking of sand under test. Calculate percentage of bulking using formula given below.

Get Price

Cement: Natural Aggregates and Bulking

This will cause, less quantity of concrete per bag of cement. For example, if the bulking of sand is 10% and if mix ratio is 1:2:4, the actual volume of sand used will be 1.1 × 2 =2.2 instead of 2 per unit volume of cement. If this correction is not applied the actual dry sand in the concrete will be , instead of 2 per unit volume of cement.

Get Price

Cement Concrete: Properties, Yield, Transport and ...

Also, there will be less quantity of fine aggregate in the concrete mix which may make the concrete difficult to place. Let the bulking of sand be 25%. Then, if the concrete is of proportion 1.2:4, the actual volume of sand to be used will be 1.25 x 2 = 2.50 instead of 2 per unit volume of cement. If this correction is not applied, the actual ...

Get Price

BULKING OF SAND AND TEST TO CALCULATE BULKING OF SAND?

Jun 04, 2020  BULKING OF SAND (Fine Aggregate): The volume of the sand increases due to the presence of the moisture content and is termed as bulking.Fine sand bulks more as compared to coarse sand.Fine aggregate bulks as much as about 40 %.Remember, fine aggregates do not show any bulking when it is absolutely dry or completely saturated.

Get Price

Bulking OF Fine Aggregates - Learning Technology

Oct 29, 2017  Therefore, it is absolutely necessary that consideration must be given to the effect of bulking in proportioning the concrete by volume. If cognisance is not given to the effect of bulking, in case of volume batching, the resulting concrete is likely to be understand and harsh. It will also affect the yield of concrete for a given cement content.

Get Price

Concrete lab s5 - slideshare

Aug 06, 2014  Hence if sand intend to use in a concrete mix is a measure by loose volume, it will be necessary to increase the volume of sand by ‘percentage bulking’. Otherwise the yield of concrete will be reduced and the mix becomes deficient in sand and the aggregate is prone to segregation resulting in honey-combing of concrete.

Get Price

Bulking of sand – (Factor affecting, Significance, and ...

Here are some effects of bulking sand on concrete: The yield strength of the concrete is affected by the bulking of concrete. The water in the sand is useful for maintaining the water-cement ratio that helps in improving the workability. An excessive amount of moisture can reduce the strength of concrete.

Get Price

How does bulking of sand affects the batching process ...

Apr 24, 2020  Bulking of sand and its effect on yield of concrete. (i) The increase in volume of sand due to moisture content is called bulking. ... This decrease in batch quantity of sand will reduce the yield of concrete per bag of cement. ( yield is. defined as the volume of concrete produced per bag of

Get Price

Bulking of Sand Why is it Important in Construction ...

The volume of a given quality of Sand varies according to its moisture content. If the sand is wet, particles get a covering of water, which due to surface tension, keeps them separately and thus causes an increase in volume known as “Bulking“. Bulking increases gradually with moisture content and the increase in volume may reach ~35% by volume at 5% – 6% moisture content by weight.

Get Price

Civil Engineers Association: Defects in Concrete and its ...

Bulking of sand and its effect on yield of concrete Bulking of sand (i) The increase in volume of sand due to moisture content is called bulking. Fine sands bulk more than coarse sands.

Get Price

Bulking of Sand, Test to Calculate Bulking in Sand ...

Sep 03, 2017  An increase of bulking in sand effects concrete mix and results in harsh behaviour while placing. Moisture content less than 5% should be preferred for construction purposes. In order to calculate the bulking of sand/ Percentage of moisture content in the sand, the moisture content of sand is further increased by adding some more water.

Get Price

What is bulking of sand? - Quora

The increase in moisture of sand increases the volume of sand. The reason is that moisture causes film of water around sand particles which results in the increase of volume of sand. For a moisture content percentage of 5 to 8 there will be an inc...

Get Price

Importance Of Bulking Of Sand - Construction Topics ...

Importance Of Bulking Of Sand. The phenomena of bulking of sand is discussed in the previous chapter. The important facts in connection with the bulking of sand are as follows: (1) When moisture content is increased by adding more water, the sand particles pack near each other and the amount of bulking of sand is decreased.

Get Price

Bulking of Sand Test – we civil engineers

Oct 15, 2018  Fill the sand up to 200 ml and shake well then record the level as a. Add 100 ml water to the cylinder to saturate the sand completely and stir well. Now add the measured sand to the container and wait for some time to settle down. The sand will be below the 200 ml mark. Note this level as b. Repeat the same procedure for 2 more samples.

Get Price

Cement: Natural Aggregates and Bulking

This will cause, less quantity of concrete per bag of cement. For example, if the bulking of sand is 10% and if mix ratio is 1:2:4, the actual volume of sand used will be 1.1 × 2 =2.2 instead of 2 per unit volume of cement. If this correction is not applied the actual dry sand in the concrete will be , instead of 2 per unit volume of cement.

Get Price

How to determine concrete yield

y = re l a t i v e yield; S = volume of concrete produced per batch in cubic f e e t ; V d = volume of concrete which the batch was de-signed to produce in cubic yard s . N O TE: A value for Ry greater than 1.00 indicates an ex-cess of concrete being produced, whereas a value less than this indicates the batch to be short of its designed vo l u ...

Get Price

HOW TO ESTIMATE YIELD OF CONCRETE FOR VOLUME BATCHING ...

Aug 12, 2015  The rule of thumb may be used to estimate the approximate yield of concrete from a given concrete mix, when batched by volume. If the proportion of concrete is a:b:c i.e., if a parts of cement, b parts of sand and c parts of coarse aggregate are mixed by volume, the resulting concrete will have a volume of (2/3)*(a+b+c). 2.

Get Price

Characteristics Of Aggregate - Civil Knowledges

Modulus of elasticity of aggregate depends on its composition, texture, and structure. It affects the elastic properties of concrete, shrinkage properties, and to a small extent creep behavior of concrete. Specific Gravity and Bulk density. Porosity, absorption and Moisture Content. Bulking of Sand. Soundness of

Get Price

Aggregate: Mechanical Properties of Aggregate Concrete ...

Effect of Bulking of Sand: For volume batching, bulking has to be allowed for by increasing the total volume of sand used, otherwise the mix will be deficient in sand and segregation of the mix may take place. Also the resulting concrete will be honeycombed and its yield will be reduced, raising its

Get Price

Bulking OF Fine Aggregates - Learning Technology

Oct 29, 2017  Therefore, it is absolutely necessary that consideration must be given to the effect of bulking in proportioning the concrete by volume. If cognisance is not given to the effect of bulking, in case of volume batching, the resulting concrete is likely to be understand and harsh. It will also affect the yield of concrete for a given cement content.

Get Price
Copyright © 2021.Cina Charm All rights reserved.Cina Charm