FACTOID # 137: Sick people is Switzerland stay in hospital for longer than the people of any other nation - almost 10 days, on average. Switzerland also has the world's highest number of hospital beds per capita.
 
 Home   Encyclopedia   Statistics   Countries A-Z   Flags   Maps   Education   Forum   FAQ   About 
 
WHAT'S NEW
RECENT ARTICLES
More Recent Articles »
 

SEARCH ALL

FACTS & STATISTICS    Advanced view

Search encyclopedia, statistics and forums:

 

 

(* = Graphable)

 

 


Encyclopedia > Cement chemist notation

Cement chemist notation (CCN) was developed to simplify the formulas cement chemists use on a daily basis. It is a sort of "short hand" way of writing the chemical formula of oxides of calcium, silicon, and various metals. Below is a list of all of the abbreviations used: In mathematics and in the sciences, a formula is a concise way of expressing information symbolically (as in a mathematical or chemical formula), or a general relationship between quantities. ... A chemical formula (also called molecular formula) is a concise way of expressing information about the atoms that constitute a particular chemical compound. ... An oxide is a chemical compound of oxygen with other chemical elements. ... General Name, Symbol, Number calcium, Ca, 20 Chemical series alkaline earth metals Group, Period, Block 2, 4, s Appearance silvery white Atomic mass 40. ... General Name, Symbol, Number silicon, Si, 14 Chemical series metalloids Group, Period, Block 14, 3, p Appearance dark gray, bluish tinge Atomic mass 28. ... Hot metal work from a blacksmith In chemistry, a metal (Greek: Metallon) is an element that readily forms ions (cations) and has metallic bonds, and metals are sometimes described as a lattice of positive ions (cations) in a cloud of electrons. ...


CCN      Actual Formula
C      CaO
S      SiO2
A      Al2O3
F      Fe2O3
T      TiO2
M      MgO
K      K2O
N      Na2O
H      H2O
S(bar)  CaSO4


These oxides are used to build more complex molecules such as: A molecule is the smallest particle of a pure chemical substance that still retains its chemical composition and properties. ...


C3S      3(CaO)*SiO2
C2S      2(CaO)*SiO2
C3A      3(Cao)*Al2O3
C4AF      4(CaO)*Al2O3*Fe2O3


Hydration products are more complicated, because many of the products have nearly the same formula and some are solid-solutions with overlapping formula. Some examples are below: In chemistry, hydration is the condition of being combined with water. ...


CSH      2(CaO)*SiO2*0.9-1.25(H2O) and/or CaO*SiO2*1.1(H2O) and/or 0.8-1.5(CaO)*SiO2*1.0-2.5(H2O) and more!
CAH      Believe it or not this is even more complex than CSH and it cannot be explained here without infringing on copyrighted material.
Aft      C3AS(bar)3H30-32
Afm      C2AS(bar)H12


  Results from FactBites:
 
Portland cement - Wikipedia, the free encyclopedia (1181 words)
Portland cement is the most common type of cement in general usage, as it is a basic ingredient of concrete and mortar.
Portland cement was first manufactured in Britain in the early part of the 19th century, and its name is derived from its similarity to Portland Stone, a type of building stone that was quarried on the Isle of Portland in Dorset, England.
The patent for Portland cement was issued to Joseph Aspdin, a British bricklayer, in 1824.
  More results at FactBites »


 

COMMENTARY     


Share your thoughts, questions and commentary here
Your name
Your comments
Please enter the 5-letter protection code

Want to know more?
Search encyclopedia, statistics and forums:

 


Lesson Plans | Student Area | Student FAQ | Reviews | Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms.