Definitions for portland cement
port·land ce·ment

Princeton's WordNetRate this definition:0.0 / 0 votes

1. hydraulic cement, Portland cementnoun

   a cement that hardens under water; made by heating limestone and clay in a kiln and pulverizing the result

WiktionaryRate this definition:0.0 / 0 votes

1. Portland cementnoun

   A finely-ground powder made by heating and pulverizing limestone and clay

2. Etymology: From its resemblance to limestone from Portland in Dorset

WikipediaRate this definition:0.0 / 0 votes

1. Portland cement

   Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydraulic lime in England in the mid 19th century, and usually originates from limestone. It is a fine powder, produced by heating limestone and clay minerals in a kiln to form clinker, grinding the clinker, and adding 2 to 3 percent of gypsum. Several types of Portland cement are available. The most common, called ordinary Portland cement (OPC), is grey, but white Portland cement is also available. Its name is derived from its similarity to Portland stone which was quarried on the Isle of Portland in Dorset, England. It was named by Joseph Aspdin who obtained a patent for it in 1824. However, his son William Aspdin is regarded as the inventor of "modern" Portland cement due to his developments in the 1840s.Portland cement is caustic, so it can cause chemical burns. The powder can cause irritation or, with severe exposure, lung cancer, and can contain some hazardous components, such as crystalline silica and hexavalent chromium. Environmental concerns are the high energy consumption required to mine, manufacture, and transport the cement, and the related air pollution, including the release of greenhouse gases (e.g., carbon dioxide), dioxin, NOx, SO2, and particulates. The production of Portland cement contributes to about 10% of world carbon dioxide emission. To meet the rising global population, the International Energy Agency estimated that the cement production is set to increase between 12 to 23% by 2050. There are several ongoing researches targeting a suitable replacement of Portland cement by Supplementary Cementitious Materials.The low cost and widespread availability of the limestone, shales, and other naturally-occurring materials used in Portland cement make it one of the lowest-cost materials widely used over the last century. Concrete produced from Portland cement is one of the world's most versatile construction materials.

ChatGPTRate this definition:0.0 / 0 votes

1. portland cement

   Portland cement is a type of hydraulic cement, made by heating limestone and clay minerals in a kiln to form a clinker, grinding the clinker, and adding 2 to 3 percent of gypsum. Named after the color of the high-quality building stones quarried at Portland, England, it is the most commonly used cement and the reference standard in the concrete industry. It is known for its ability to harden in the presence of water, making it ideal for constructing structures that are submerged in water.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Portland cement

   a cement having the color of the Portland stone of England, made by calcining an artificial mixture of carbonate of lime and clay, or sometimes certain natural limestones or chalky clays. It contains a large proportion of clay, and hardens under water

WikidataRate this definition:0.0 / 0 votes

1. Portland cement

   Portland cement is the most common type of cement in general use around the world, used as a basic ingredient of concrete, mortar, stucco and most non-specialty grout. It usually originates from limestone. It is a fine powder produced by grinding Portland cement clinker, a limited amount of calcium sulfate and up to 5% minor constituents as allowed by various standards such as the European Standard EN197-1: Portland cement clinker is a hydraulic material which shall consist of at least two-thirds by mass of calcium silicates, the remainder consisting of aluminium- and iron-containing clinker phases and other compounds. The ratio of CaO to SiO2 shall not be less than 2.0. The magnesium oxide content shall not exceed 5.0% by mass. . ASTM C 150 defines Portland cement as "hydraulic cement produced by pulverizing clinkers consisting essentially of hydraulic calcium silicates, usually containing one or more of the forms of calcium sulfate as an inter ground addition." Clinkers are nodules of a sintered material that is produced when a raw mixture of predetermined composition is heated to high temperature. The low cost and widespread availability of the limestone, shales, and other naturally occurring materials make Portland cement one of the lowest-cost materials widely used over the last century throughout the world. Concrete is one of the most versatile construction materials available in the world.

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1. • Cement

How to pronounce portland cement?

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How to say portland cement in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of portland cement in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of portland cement in Pythagorean Numerology is: 7

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=portland cement
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Portland_Cement
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Portland_Cement
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/portland cement
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=portland cement