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Explain how aggregates are processed for the use as a Portland cement concrete ingredient or as a bituminous concrete ingredient?
Wiki User
∙ 14y ago
There is nothing special about the aggregate, it is simply crushed rock that has been washed.
Wiki User
∙ 14y ago
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What is sulphur concrete?
Ordinary portland cement based concrete consists of a mixture of aggregates bound together with portland cement. In the presence of water a chemical reaction takes place and the portland cement is hydolysed. At the end of this chemical reaction the cement becomes hard and binds the aggregate particles together.Sulphur concrete is composed of a similar mixture of aggregates, however, and this is the big difference, there is no portland cement involved. Instead the aggregate mixture is bound together by molten sulphur at elevated temperatures. Upon placing, the sulphur concrete is allowed to cool and as it cools the molten sulphur becomes a solid again binding the aggregates together imparting rigidity to the concrete mix.Because sulphur concrete contains no alkaline materials, unlike portland cement mixtures, it is very much more resistant to acid attack and thus finds favour in industry where acid resistant concrete is desirable.
What substance slows down the setting of cement?
Gypsum slows down the setting of cement. Although the terms cement and concrete often are used interchangeably, cement is actually an ingredient of concrete. Concrete is basically a mixture of aggregates and paste. The aggregates are sand and gravel or crushed stone; the paste is water and portland cement. Concrete gets stronger as it gets older. Portland cement is not a brand name, but the generic term for the type of cement used in virtually all concrete, just as stainless is a type of steel and sterling a type of silver. Cement comprises from 10 to 15 percent of the concrete mix, by volume. Through a process called hydration, the cement and water harden and bind the aggregates into a rocklike mass. This hardening process continues for years meaning that concrete gets stronger as it gets older. So, there is no such thing as a cement sidewalk, or a cement mixer; the proper terms are concrete sidewalk and concrete mixer.
Which states is Portland in?
There is a Portland, Oregon and a Portland, Maine.
Dorset source of limestone?
Yes. Portland in particular has lots of quarries that deal in portland limestone.
9 pm eastern time is what time in Portland?
Portland Maine is also on Eastern time. Portland Oregon is on Pacific time: 6 pm
Meaning of hydration in concrete?
Hydration in concrete provides the means with which to mix Portland cement and the aggregates.
What has the author Sandor Popovics written?
Sandor Popovics has written: 'Mineral aggregates in highway engineering' -- subject(s): Aggregates (Building materials), Road materials 'Fundamentals of Portland cement concrete--a quantitative approach' -- subject(s): Concrete, Portland cement
What is the major ingredient in a batch of concrete?
Portland cement.
What is the collective noun for concrete?
Concrete is the collective noun for water, Portland Cement, aggregates and air.
What is sulphur concrete?
Ordinary portland cement based concrete consists of a mixture of aggregates bound together with portland cement. In the presence of water a chemical reaction takes place and the portland cement is hydolysed. At the end of this chemical reaction the cement becomes hard and binds the aggregate particles together.Sulphur concrete is composed of a similar mixture of aggregates, however, and this is the big difference, there is no portland cement involved. Instead the aggregate mixture is bound together by molten sulphur at elevated temperatures. Upon placing, the sulphur concrete is allowed to cool and as it cools the molten sulphur becomes a solid again binding the aggregates together imparting rigidity to the concrete mix.Because sulphur concrete contains no alkaline materials, unlike portland cement mixtures, it is very much more resistant to acid attack and thus finds favour in industry where acid resistant concrete is desirable.
Do they have lime in concrete?
The most popular type of concrete in use these days is Portland and lime is an ingredient
What are the four ingredients in concrete?
1 part Portland cement, 2 parts dry sand, 3 parts dry aggregates, 1/2 part water
What has the author Laurel S Jensen written?
Laurel S. Jensen has written: 'Mineral land classification of Portland cement concrete aggregate in the Stockton-Lodi production-consumption region' -- subject(s): Aggregates (Building materials), Concrete, Portland cement
How do you use mudrock?
Mudrock can be used to make bricks or a silica-rich ingredient in the Portland Cement formula.
How is limestone put in cement?
Limestone is crushed and baked at high temperatures to produce the main ingredient for Portland cement.
What substance slows down the setting of cement?
Gypsum slows down the setting of cement. Although the terms cement and concrete often are used interchangeably, cement is actually an ingredient of concrete. Concrete is basically a mixture of aggregates and paste. The aggregates are sand and gravel or crushed stone; the paste is water and portland cement. Concrete gets stronger as it gets older. Portland cement is not a brand name, but the generic term for the type of cement used in virtually all concrete, just as stainless is a type of steel and sterling a type of silver. Cement comprises from 10 to 15 percent of the concrete mix, by volume. Through a process called hydration, the cement and water harden and bind the aggregates into a rocklike mass. This hardening process continues for years meaning that concrete gets stronger as it gets older. So, there is no such thing as a cement sidewalk, or a cement mixer; the proper terms are concrete sidewalk and concrete mixer.
What liquid dissolves concrete the most?
Concrete is made up of three main ingredients - water, Portland cement, and aggregates. To dissolve it, you can use hydrofluoric acid which is quite dangerous to use, or products called Ascarlite or Cemix.
