what is the soundness of cement quora

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

Answer (1 of 4): 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 cement is concerned, the soundness depend on it’s ingredients. Especially excess of lime and/ or magnesia oxide present...

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

Answer (1 of 3): My dear friend Mainuddin Ansari, Soundness of cement :- “Soundness of cement indicates that teb cement paste, once it has set, does not undergo appreciable change in volume causing concrete to crack”. The cement having some quality of free lime, magnesia and excess sulphates u...

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What is the unsoundness of cement? - Quora

Answer (1 of 2): 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 after setting causing disruption of the set and hardened mass. This will cause serious difficulties for the durabili...

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

Answer: 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 much water is a common cause for concrete to be weaker than the desired product. The people doing the pour and leveling ...

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How much water is needed for a soundness test of

Answer (1 of 2): 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 at minimum volume change after it gets hardened. The test conducted to identify the excess amount of

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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 setting causing disruption of the set and hardened mass. This expansion of cement can cause serious problems for the durability of structures when such cement is used.

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What are the concrete properties? - civilarchives.quora

The strength of normal concrete varies between 25 and 40 MPa. Durability. Porosity and density. Fire resistance. Thermal and acoustic insulation properties. Properties of concrete are influenced by many factors mainly due to mix proportion of cement, sand, aggregates and water.

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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 ...

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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.

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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 (

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

Cement is the active ingredient in many other products. mixed with sand, gravel and water it makes concrete. A rough volume measurment would be one part cement two parts sand and three of gravel to make a concrete mix suitable for finishing for a floor, patio or sidewalk. Cement mixed with sand and lime is used for stucco, plaster and mortar.

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How can one clearly differentiate the strength, hardness ...

Broadly speaking, the more porous the concrete, the weaker it will be. Probably the most important source of porosity in concrete is the ratio of water to cement in the mix, known as the 'water to cement' ratio. This parameter is so important it will be discussed separately below. Water/cement ratio: this is defined as the mass of water divided by

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What is Ready Mix Concrete? - Anything Informative - Quora

Continue Reading. 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.

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Cement Test 8 Test On Cement Cement Testing Methods ...

3. Initial and Final Setting Time Of Cement Test. Initial Setting Time gives an idea about how fast cement can start losing its plasticity and the final setting time of cement gives an idea about how much Time cement takes to lose its full plasticity and gain some strength to resist pressure.. Initial Setting Time of Cement: It is the time elapsed between the moments that the water is added to ...

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Properties of Cement- Physical Chemical - Civil Engineering

Soundness refers to the ability of cement to not shrink upon hardening. Good quality cement retains its volume after setting without delayed expansion, which is caused by excessive free lime and magnesia. Tests: Unsoundness of cement may appear after several years, so tests for ensuring soundness must be able to determine that potential. ...

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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.

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Solved 1. WHAT IS TIME SETTING OF CEMENT? HOW IS IT ...

Nov 21, 2021  100% (1 rating) 1. Initial setting time of cement = 30 min 2. Final setting time of cement =300 min or 10 hour INITIAL SETTING TIME - The test is perform in vikat apparatus Initial setting time of cement is defined as the time elapsed between the moments when water . View the full answer.

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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%.

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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 ...

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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 ...

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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 ...

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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 ...

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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

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

Yeah you can produce M-25 grade concrete using 43 Grade cement based on Mix design, 43 grade cement refers to characteristic strength of cement when it is used alone or in combination with sand. At 28 days curing u will get the compressive strength more than 43 Mpa or N/mm2.

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What is Ready Mix Concrete? - Anything Informative - Quora

Continue Reading. 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.

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

Aug 11, 2021  Soundness of cement is measured by [A] Vicat's apparatus [B] Le-chatelier apparatus [C] Compressive strength testing apparatus [D] None of these this blog Civil Experience Civil Experience is a valuable informational resource for civil engineers; students, Information, Articles are categorized into sections.

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What is the Maximum size of aggregate for ... - rjn.quora

Principal of this test is that marshall stability is the resistance toastic flow of cylindrical specimen of a bituminous mixture loaded on the lateral surface .It is the load carrying capacity of the mix at 60° C measured in k.g. Maximum size of aggregate for Marshall stability test is 25 mm.

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What is the usage of 'if any'? - English for Students

The word “on” can be either a preposition or an adverb. For example, “ He fell on the hard cement” is a sentence that uses “on” as a preposition with the word “cement” as the object of the preposition. In this sentence “Turn the water on,” the word “on” is an adverb answering the question “how” (turn it

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Cement Mortar Estimation of Cement, Sand Water in ...

Jul 09, 2019  Cement Mortar. Cement Mortar is one of the most common and cheapest binding materials used in construction industry.Cement mortar is basically a mixture of cement, sand water.It is used in various aspects of civil engineering works such as masonry, brickwork, plastering, flooring etc.There are two types, dry mortar and wet mortar.

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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.

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Programming - Quora

The Stack The Stack is a linear data structure. It based on the concept of the LIFO (Last In First Out) for storing and retrieving data in it. You can easily understand the Stack with real-time examples. For Example, a stack of the plate in a canteen where a waiter always put a new plate on the top of. Learn programming for free with ...

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What is the name of carbon dioxide in solid form ... - Quora

It is called as dry ice it is called so beacuse as compared to other solid substances it will not turn into liquid form instead it turns into gas so it has got the name dry ice. frozen carbon dioxide is known as dry ice. It is the solid form of carbon dioxide. Dry ice is the name of carbon dioxide in solid form.

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If much of what is written in the Book of Revelations is ...

Answer (1 of 2): In Revelation 22:10 Jesus tells John: Do not seal up the words of the prophecy of this book, for the time is near.” Daniel gets the opposite order: “But as for you, Daniel, conceal these words and seal up the book until the of time”. John was already in the end time: the time a...

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Cement Mixing Sound Effects by SounDall AudioJungle

Nov 27, 2021  Download Preview. Add to Favorites. Add to Collection. Cement Mixing Sound Effect – 01 : 0:07 Cement Mixing Sound Effect – 02 : 0:04 Cement Mixing Sound Effect – 03 : 0:13 Cement Mixing Sound Effect – 04 : 0:08. Cement mixing sound effects which can be used in your audio and video productions. Show More Show Less.

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ISRO and GATE preparation - decodinggate.quora

“Cement can however, be “overmixed”: Concrete, mixed in a transit mixer, should be delivered and discharged within 1 1/2 hours or before the drum has revolved 300 times after the introduction of water to cement and aggregates or the cement to the aggregates. Mixers and agitators should always be operated within the limits of the volume ...

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cement - History of cement Britannica

cement - cement - History of cement: The origin of hydraulic cements goes back to ancient Greece and Rome. The materials used were lime and a volcanic ash that slowly reacted with it in the presence of water to form a hard mass. This formed the cementing material of the Roman mortars and concretes of more than 2,000 years ago and of subsequent construction work in western Europe.

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What is static electricity? - Electrical Science - Quora

Static electricity is a field of electricity dealing with charges fixed in an insulated body such as the rubbed woolen cloth, rubbed balloon, rubbed plastic sheet, rubbed plastic rod, etc. Since the charges can stay on the mentioned bodies, we can think of so many experiments related to attraction and repulsion.

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