What is AIR ENTRAINING portland cement?

I was getting the price for portland cement and sand/gravel to pour a small shed floor about one CU YARD. I intend to mix it myself in a drum mixer.
The portland cement bags said type A1 (or was that 1A), AIR ENTRAINING portland cement. I have never heard that term used before. What is AIR ENTRAINING? Anyone know?
LM
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
It is a chemical additive in concrete that creates microscopic air pockets in the concrete that provide extra protection for the concrete in freeze/thaw cycles. It is normal and desirable in exterior concrete like sidewalks and driveways. It can create blisters in hard troweled concrete (steel trowel finish) and normally NOT used in interior applications.
--
______________________________
Keep the whole world singing . . . .
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
wrote:

Damn, is Google broken again?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Doug Miller wrote:

Gee Doug, only 1,854,732 hits. Would you care to read through them and choose the right one for the OP? Or should he ask someone who might actually know?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
wrote:

I only got 142,000 hits. Not too many to read. The first 5 will tell the OP all he needs to know.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

I'm neither Doug, or the OP, but if I were to Google ; what is air entraining I might go with the first hit which reads; "What is air-entrained concrete? An explanation on what air-entrained concrete exactly is."

Been on Usenet long? Wealth of good information. . . .tons of bad.
Jim
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On 5/28/2009 5:25 AM Doug Miller spake thus:
>

If you're too damn lazy to answer the question, why not just STFU instead?
Sheesh. I'm just so damned tired of hearing people reply "just Google it".
Think about it; a good reason to *ask a question here*, rather than just type some search terms into a search engine like any other idiot, is that just *maybe* there might be someone here who not only can give you the definition of the term, but also may have had some actual experience using it and can give you the benefit of their knowledge. That's why [insert name of deity here] invented Usenet.
--
Found--the gene that causes belief in genetic determinism

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Not a new formula. It has been around for well over 50 years. Different type of cement.
--
______________________________
Keep the whole world singing . . . .
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.