What is the soundness of cement Quora

Provide customers with tailor-made solutions

What is the soundness of cement? - Quora

Soundness in cement is one undesirable property of cement which causes expansion in structure and leads to minor cracks which in turn deteriorate strength

Get Price

How would you describe the soundness of cement and ... - Quora

My dear friend Mainuddin Ansari, Soundness of cement :- “Soundness of cement indicates that teb cement paste, once it has set, does not undergo appreciable

Get Price

What is the purpose of the Soundness Test in cement? - Quora

any structure has to have longer life, i.e it has to be durable. durability depend on how sound in the material used. may cement, sand, or aggregates. as for as

Get Price

What is the unsoundness of cement? - Quora

May 01, 2021  It is very important that the cement after setting shall not undergo any appreciable change of volume. Certain cements have been found to undergo a large expansion

Get Price

What is the source of error in the soundness of cement ...

There are many possible errors in the casting of concrete. Improper ratio of cement to sand to aggregate to water. The wrong amount of any will affect the result. Too

Get Price

How much water is needed for a soundness test of cement ...

Soundness Test of Cement The ability of cement to retain its volume after it gets hardened is known as Soundness of Cement. That means the cement should be

Get Price

Soundness Of Cement Soundness Test Of Cement Le ...

The soundness Test of cement is measured the expansion of cement after it starts setting. Certain cement has been found to undergo a large expansion after

Get Price

What is the weight of Cement bag? - Anything ... - Quora

Sep 02, 2020  Weight of cement bag is 50 kg or 35lit. Density of cement-1440kg/m3. Extra: Always use cement before 3month from the manufacturing date. Cement is grey colour

Get Price

What do u mean by Water bound Macadam. What is the ... - Quora

Where X = water/cement ratio by volume and for 28 days results the constants A and B are 14,000lbs/sq. and 7 respectively. Abrams water/cement ratio law states that the strength of concrete is only dependent upon water/cement ratio provided the mix is workable.

Get Price

Test to Determine the Setting Time of Cement

Dec 22, 2018  Initial Setting Time of Cement – Note down the time, when needle fails to penetrate 5 – 7 mm from the bottom of the test block. This time is denoted as an initial setting time of cement. Final Setting Time of Cement – Note down the time, when needle fails to make an impression on the surface of the test block. This time is denoted as a ...

Get Price

Effect of water absorption by the aggregate on properties ...

procedure, the cement paste properties and the time after mixing. When prewetted lightweight aggregate was used, the results indicate that a small amount of water moved out from the aggregate already when the cement paste was in a fresh state. When dry, water absorbing lightweight aggregate was used, the water absorption

Get Price

An aggregate sample whose largest dimension is greater ...

Soundness - thethe aggregates should be sound that means it should have the ability to resist excessive change in volume due to change in physical conditions. Thermal expansion - thermal expansion of aggregate has an effect on the durability of concrete particularly under rapid

Get Price

The main purpose of the soundness test of the cement is to ...

Soundness means the ability to resist volume expansion and it is indication of durability. ∴ The main purpose of the soundness test of the cement is to determine the change in volume of cement after setting. The unsoundness in cement is due to the presence of an excess of free lime than that could be combined with acidic oxide at the kiln.

Get Price

Can I get M25 strength of concrete using 43 grade ... - Quora

Cement is actually a dry and grayish powder that solidifies when water is added to it. It is the ingredient that hardens concrete when water is mixed. CONCRETE, on the other hand, is made up of at least three components- cement, sand and aggregates. Cement can be

Get Price

What are minimum quantities we can order of construction ...

Sep 16, 2020  The free water-cement ratio is responsible for durability of concrete under various conditions of exposure that are envisaged during the life of the concrete structure. That’s why I.S-456: 2000 has recommended minimum cement content for maximum water-cement ratio for various exposure conditions like mild, moderate, severe, very severe, extreme.

Get Price

What Is Fineness Of Cement Fineness Test Of Cement ...

What Is Fineness of Cement. The fineness of cement is a measure of cement particle size and is denoted as terms of the specific surface area of cement.. The Fineness Test of Cement is done by sieving cement sample through standard IS sieve. The weight cement particle whose size greater than 90 microns is determined and the percentage of retained cement particle are calculated.

Get Price

Laughter Is Good Medicine - Quora

Laughter Is Good Medicine. Quora User. Former VP of Customer Relations (2000–2015) . Mon. Angular Fitness. Sponsored. The Rock admits this was the best decision he ever made. The big companies don't want you to know his secrets.

Get Price

What is the benifits of Plaster of Paris? - Bio-Chemistry

Jun 30, 2020  Mixing of cement and plaster of Paris should be done before adding water. The success of the given mix depends upon the work. “ for example if, work is related to casting, troweling and there is no aggregate and other materials the performance will depend upon some other factors too.

Get Price

Soundness Test on Aggregates - GharPedia

The soundness test on aggregate is carried out to learn the resistance of aggregates to weathering actions like thawing, freezing, alternate wetting and drying in normal conditions and in salt water, variation in temperature. When subjected to above stated conditions, aggregates which are weak, porous, and contains any irrelevant matters, can ...

Get Price

Proportions of Cement Ingredients, Their Functions and ...

7.Sulfur (SO3) Sulfur or sulfur trioxide in the cement is about 1 to 3%. Its function is to make the cement sound. If it is in excess quantity the cement becomes unsound. Fig 8: Sulfur Trioxide. 8. Alkalis. Alkalis like soda and potash are present in the cement which normally ranges from 0.1 to 1%.

Get Price

8 Main Cement Ingredients Their Functions - Civil ...

Cement, as a binding material, is a very important building material. Almost every construction work requires cement. Therefore, the composition of cement is a matter of great interest to engineers. For understanding cement composition, one must know the functionality of Cement ingredients.

Get Price

Compressive Strength of Cement and Test to find it

Mar 09, 2020  Compressive Strength of Cement: Compressive strength is the capacity of material or structure to resist or withstand under compression. The Compressive strength of a material is determined by the ability of the material to resist failure in the form of cracks and fissure.

Get Price

List of IS Codes for Cement and Concrete - Civil ...

May 04, 2017  List of IS Codes for Cement and Concrete. Here are the IS codes which cater to the need of civil engineering relating to Cement and Concrete. These IS codes include the Standardization in the field of all types of cement, pozzolana, testing sand, concrete, aggregates, instruments for cement and concrete testing, cement plant machinery and ferrocement concrete, reinforced concrete and pre ...

Get Price

IS 4031-3 (1988): Methods of physical tests for hydraulic ...

meet the test for soundness, a retest may be made after aeration. For this purpose, spread out the cement in a layer of75mm thickness and storeit for 7 days in an atmosphere main-tained at 27 ± 2°C and relative humidity of50 to 80 percent. Retest this cement as described in5.2. '6.1 Apparatus 6.1.1 Balance - Same as 5.1.2. 6.1.2 Weights ...

Get Price

Can I get M25 strength of concrete using 43 grade ... - Quora

43 grade says the cement can produce concrete of strength up to 43 Mpa. So surely we can make M25 and up to M43. Achievable but better to use 53 grade cement because initial strength is high and setting time is less. M25 is mix design -it s a characteristics comprensive strength of concrte ( FA +CA+ cement

Get Price

Can we heat medium through sound? I mean, if ... - Quora

This might involve making the wall from two layers of heavy/dense materials such as brick or cement board with sound absorbing insulation in between. To prevent sound travelling through windows two sheets of glass are used with a gap between them. The width of the gap (typically 16mm) is normally optimised to minimise heat loss.

Get Price

What are the different grades of concrete and steel used ...

Standard concrete using Portland cement is All equal proportions, 3 of sand, 2 of aggregate (stones) ,1 of cement. ( 5 to 1 mix) And If required, additive fluid which makes it creamy and easy to float. The recipe can be altered slightly, but be aware of the cautions I mention.

Get Price

Soundness of cement is measured by Soundness of cement ...

Soundness of cement is measured by. [A] Vicat's apparatus. [B] Le-chatelier apparatus. [C] Compressive strength testing apparatus. [D] None of these. ANSWER = [B] Le-chatelier apparatus. Related Posts. Explain:- Correct answer for the question soundness of cement is measured by is Le-chatelier apparatus. 10 seconds to Wait.

Get Price

What are minimum quantities we can order of ... - Quora

Jul 14, 2020  We calculate these quantities of cement, sand and aggregate in volume M3 basis. 1 M3 of wet concrete requires 1.54 M3 of total materials on dry basis. So the components will have a volume in their proportions of 1:2:4. Cement = 1.54 * 1 * 1/7 = 0.22 M3 or 0.22 *35.3147 = 7.7 Cft.

Get Price

Why was the concrete of the Romans so strong? - Ancient Europe

Modern cement kilns are artificial volcanoes! The key difference is that the energy driver for modern cement is fossil fuel. In the meantime Mother Nature provided a similar material to the Romans in the form of volcanic ash. No extra heat needed! You can see why there is a green movement away from artificially made Portland cement.

Get Price

Cement - Wikipedia

A cement is a binder, a substance used for construction that sets, hardens, and adheres to other materials to bind them together. Cement is seldom used on its own, but rather to bind sand and gravel together.Cement mixed with fine aggregate produces mortar for masonry, or with sand and gravel, produces concrete.Concrete is the most widely used material in existence and is behind only water as ...

Get Price

What is Ready Mix Concrete? - Anything Informative - Quora

Sep 07, 2020  Ready-mix concrete is concrete that is manufactured in a batch plant, according to a set engineered mix design. Ready-mix concrete is normally delivered in two ways. First is the barrel truck or in–transit mixers. This type of truck delivers concrete in a plastic state to the site.

Get Price

What is emulsion and what are it's advantages as a road ...

An emulsion is a mixture of heated bitumen and water which are unmixable in general. The mixing is done in the presence of an emulsifying agent like soap or resin. The emulsifying agent helps in mixing the two liquids. Depending upon the stability of the protective coating of emulsifying agent, the emulsion is classified in three category -.

Get Price

English isn’t my first language so I’m sorry if I sound ...

Something went wrong. Wait a moment and try again. Try again. Please enable Javascript and refresh the page to continue

Get Price

Is there any language sound that is made by breathing in ...

Something went wrong. Wait a moment and try again. Try again. Please enable Javascript and refresh the page to continue

Get Price

What is the benifits of Plaster of Paris? - Bio-Chemistry

Jun 30, 2020  Mixing of cement and plaster of Paris should be done before adding water. The success of the given mix depends upon the work. “ for example if, work is related to casting, troweling and there is no aggregate and other materials the performance will depend upon some other factors too.

Get Price

Setting Time Of Concrete Test - Civiconcepts

The Setting Time of Concrete completely differs from the setting time of cement.The setting time of cement does not match or compare cement setting time with which the concrete is made. The concrete setting time mostly depends upon the w/c ratio, temperature conditions, type of cement, use of mineral admixture, use of plasticizer, in particular, retarding plasticizer.

Get Price

Composition of cement

Composition of cement. Introduction Portland cement gets its strength from chemical reactions between the cement and water. The process is known as hydration.This is a complex process that is best understood by first understanding the chemical composition of cement.

Get Price