Web Definition: Portland Cement
Portland cement is the most common type of cement in general usage, as it is a basic ingredient of concrete & mortar. It consists of a mixture of oxides of calcium, silicon & aluminum. Portland cement & similar materials are made by heating limestone with clay or sand & grinding the product. The resulting powder, when mixed with water, will become a hydrated solid over time. Manufacture of portland cement requires the burning of large quantities of fuel, typically coal, which along with impurities contained in the limestone can result in significant emissions of pollutants regulated in many countries, including greenhouse gases such as nitrogen oxides & sulfur dioxide, as well as particulates, volatile organic compounds & carbon monoxide. Cement plants are known to emit substantial quantites of arsenic, lead & mercury. Portland cement was first manufactured in Britain in the early part of the 19th century & 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.
Read More »Dictionary Entry: 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.
Abstract from Wikipedia available under GNU FDL - « Read More
Redwood City Flooring
Looking for new floors? We have what you need. Call us today.
www.stuartfloor.com Sf Cement Contractor
For cement service including cement floors and cement patios, call us.
www.efgomez.com
Warner Robins Flooring
Thinking of putting new floors in your house? Call for installation.
www.handhcarpets.com
Orlando Hardwood Flooring
From red oak to exotic wood, we have a hardwood floor to suit you.
www.abilitywoodflooring.com - See Also: Hardwood Flooring »
Middle Tennessee Flooring
We create, maintain and install beautiful hardwood floors. Call today.
www.randshardwoodfloors.com - See Also: Hardwood Floors »
Louisville Flooring
We sell, install and repair all types of floor coverings. Call today.
www.patsmithsflooring.com - See Also: Floor Coverings »
Jackson, Ms Flooring
The quality of our work will floor you. Call today for marble floors.
www.keltytile.com
Huntsville Floors
Planning a renovation? Call us for hardwood and laminate floors today.
www.realpagessites.com - See Also: Laminate Floors »
Flooring Contractor
Contact Floorz 4 You about installing floors in the Atlanta area.
www.floorz4you.com - See Also: Flooring Contractor »
Charlotte Flooring
Our flooring systems give your home a special look. Free estimates.
www.ruedigerflooring.com - See Also: Flooring Systems »
Portland Cement Info
Get Info On Portland Cement from 14 search engines in 1.
www.info.com
Looking For Portland Cement
Find: portland cement. Review & compare!
findstuff.com
Portland Cement
Looking for Portland Cement?
www.shopica.org
Portland Cement Information
Learn about portland cement
couponmountain.com
Best Sites About Portland Cement
We will show you the best websites related to Portland Cement.
www.thetop10.com
Cement Process Consultants, Cement Kiln
Cement Kiln Process Consultant, Experts in trouble-shooting, process problems with cement kilns, clinker coolers amp mills. Cement kiln start-ups, operator training and design of process equ
www.cement-process.com
Find Portland Cement
Helpful Links for portland cement
toseeka.com
