[permalink] [id link]
Pozzolana, also known as pozzolanic ash ( pulvis puteolanus in Latin ), is a siliceous or siliceous and aluminous material which reacts with calcium hydroxide in the presence of water at room temperature ( cf.
from
Wikipedia
Some Related Sentences
Pozzolana and also
Pozzolana also is a decomposed tuff, but of basic character, originally obtained near Naples and used as a cement, but this name is now applied to a number of substances not always of identical character.
Pozzolana and ash
Pozzolana is a fine, sandy volcanic ash, originally discovered and dug in Italy at Pozzuoli in the region around Mount Vesuvius, but later at a number of other sites.
Pozzolana and is
Pozzolana is abundant in certain locations and is extensively used as an addition to Portland cement in countries such as Italy, Germany, Turkey, China and Greece.
Pozzolana and with
Pozzolana containing significantly less volcanic glass, such as a trachyandesite from Volvic ( France ) with only 25 wt % are less reactive.
Pozzolana and at
The earliest evidence of settlement of the site come from finds of urns at two areas ( Cava della Pozzolana and Sorbo ) from the 8th and 9th centuries BC.
Pozzolana and .
Covers: modifying harbor, for the garum industry, amphora factory, hydraulic concrete, of " Pozzolana mortar " and the five piers, of the Cosa harbor, the lighthouse on pier 5, diagrams, and photographs.
Covers, hydraulic concrete, of " Pozzolana mortar " and the 5 piers, of the Cosa harbor, the Lighthouse on pier 5, diagrams, and photographs.
* See Pozzolana mortar, for the marine concrete in the Port of Cosa.
In Italy the beaches of Pozzolana di Ponente on Linosa and Isola dei conigli on Lampedusa are the last remaining sites where the turtle regularly lays its eggs.
also and known
Missiles are very valuable weapons, but they also have their too little known limitations.
The aircraft could be used to destroy other mobile, fleeting, and imprecisely located targets as well as the known, fixed and hardened targets which can also be destroyed by missile.
Back at the Kaiser's Fountain, I walked left to the streetcar stop and rode up the hill -- any car will do -- past the Column of Constantine, also known as the Burnt Column, at the top on my right.
We now have not only what has been called over here the comedy of menace but we also have horror jokes, magazines known as Horror Comics, and sick comedians.
We pointed out that emotional excitement may lead to psychosomatic disorders and neurotic symptoms, particularly in certain types of personality, but it is also known that the reliving of a strong emotion ( `` abreaction '' ) may cure a battle neurosis.
The process in which the outcome of any one stage is known only statistically is also of interest, although for chemical reactor design it is not as important as the deterministic process.
The Roman Catholic Church sanctions only abstention or the rhythm method, also known as the use of the infertile or safe period.
She knew also that I was unmarried and without a single known relative.
Alabama is also known as the " Heart of Dixie.
This period had also known Augustine of Hippo, Nonius Marcellus and Martianus Capella among many others.
As sun-god and god of light, Apollo was also known by the epithets Aegletes ( ; Αἰγλήτης, Aiglētēs, from αἴγλη, " light of the sun "), Helius ( ; Ἥλιος, Helios, literally " sun "), Phanaeus ( ; Φαναῖος, Phanaios, literally " giving or bringing light "), and Lyceus ( ; Λύκειος, Lukeios, from Proto-Greek * λύκη, " light ").
For this he was also known as Parnopius ( ; Παρνόπιος, Parnopios, from πάρνοψ, " locust ") and to the Romans as Culicarius ( ; from Latin culicārius, " of midges ").
Afroasiatic ( alternatively Afro-Asiatic ), also known as Hamito-Semitic, is a large language family, including about 375 living languages.
The oldest known caecilian is Eocaecilia micropodia, also from Arizona, while the earliest salamander is Beiyanerpeton jianpingensis from the Late Jurassic of northeastern China.
It is also known as Alyeska, the " great land ", an Aleut word derived from the same root.
Best known for his novels including Brave New World and a wide-ranging output of essays, Huxley also edited the magazine Oxford Poetry, and published short stories, poetry, travel writing, film stories and scripts.
He is also well known for advocating and taking psychedelics.
Alkanes ( also known as paraffins or saturated hydrocarbons ) are chemical compounds that consist only of hydrogen and carbon atoms and are bonded exclusively by single bonds ( i. e., they are saturated compounds ) without any cycles ( or loops ; i. e., cyclic structure ).
In music an " answer " ( also known as countersubject ) is the technical name in counterpoint for the repetition or modification by one part or instrument of a theme proposed by another.
In human – computer interaction, computer accessibility ( also known as Accessible computing ) refers to the accessibility of a computer system to all people, regardless of disability or severity of impairment.
Asphalt or or, also known as bitumen, is the sticky, black and highly viscous liquid or semi-solid present in most crude petroleums and in some natural deposits ; it is a substance classed as a pitch.
* An argument of a function, also known as an independent variable
In chemistry and physics, the atomic number ( also known as the proton number ) is the number of protons found in the nucleus of an atom and therefore identical to the charge number of the nucleus.
Nevertheless, in spite of Rutherford's estimation that gold had a central charge of about 100 ( but was element Z = 79 on the periodic table ), a month after Rutherford's paper appeared, Antonius van den Broek first formally suggested that the central charge and number of electrons in an atom was exactly equal to its place in the periodic table ( also known as element number, atomic number, and symbolized Z ).
The aardvark has been known to sleep in a recently excavated ant nest, which also serves as protection from its predators.
also and pozzolanic
Plasticizers are also often used when pozzolanic ash is added to concrete to improve strength.
Apart from the glass content and its morphology associated with the specific surface area, also defects and the degree of strain in the glass appear to affect the pozzolanic activity.
also and ash
* Sorbus aucuparia, also known as European mountain ash
Bones, in particular after calcination to bone ash is used as source of calcium phosphate for the production of bone china and previously also phosphorus chemicals.
Because fly ash addition allows a lower concrete water content, early strength can also be maintained.
Portland pozzolan cement includes fly ash cement, since fly ash is a pozzolan, but also includes cements made from other natural or artificial pozzolans.
The mining of oil shale in northeastern Estonia has also left large mounds of limestone tailings and ash dotting the region.
It also divested its soda ash products arm to Brunner Mond.
The preferred material to make the longbow was yew, although ash, elm and other woods were also used.
Over 3500 arrows were found, mainly made of poplar but also of ash, beech and hazel.
Adjoining the Al Hajar ash Sharqi Mountains are the sandy regions of Ash Sharqiyah and Jalan, which also border the desert.
The tree and its fruit give its name to the plant family, which also includes species such as lilacs, jasmine, Forsythia and the true ash trees ( Fraxinus ).
In the southwest, the lofty Mount Hermon ( Jabal ash Shaykh ), also on the border between Syria and Lebanon, descends to the Hawran Plateau — frequently referred to as the Hawran — that receives rain-bearing winds from the Mediterranean.
Large eruptions can affect temperature as ash and droplets of sulfuric acid obscure the sun and cool the Earth's lower atmosphere or troposphere ; however, they also absorb heat radiated up from the Earth, thereby warming the stratosphere.
WMO also contributes to reducing the impacts of human-induced disasters, such as those associated with chemical and nuclear accidents, forest fire and volcanic ash.
The surrounding strata, if shale or mudstone, often contain slightly more than average and this may also be reflected in the ash content of ' dirty ' coals .< ref >
Such treatments reduce the level of threat of harmful chemicals, like fly and bottom ash, while also recycling the safe product.
Loose ground ash may also act as a cover to protect the fallen seeds from ultraviolet radiation damage.
It commonly refers to the radioactive dust and ash created when a nuclear weapon explodes, but this dust can also be originated in a damaged nuclear plant.
The ash also entered streams and was washed into the penstocks and turbines of the Rangipo underground HEP station causing rapid corrosion on the turbine blades which had to be rebuilt.
In the United States, the American elm is a major member of four major forest cover types: black ash-American elm-red maple ; silver maple-American elm ; sugarberry-American elm-green ash ; and sycamore-sweetgum-American elm, with the first two of these types also occurring in Canada.
White ash is also killed rapidly, but usually only after green and black ash trees are eliminated.
The Askafroa ( Swedish " wife of the ash tree "), also known as the Danish Askefrue and German Eschenfrau, is a type of legendary creature in Scandinavian and German folklore, similar to the Greek Hamadryads.
Natron is a naturally occurring mixture of sodium carbonate decahydrate ( Na < sub > 2 </ sub > CO < sub > 3 </ sub >· 10H < sub > 2 </ sub > O, a kind of soda ash ) and about 17 % sodium bicarbonate ( also called nahcolite or baking soda, NaHCO < sub > 3 </ sub >) along with small quantities of sodium chloride and sodium sulfate.
Soda ash also replaced natron in glass-making.
0.371 seconds.