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White Portland cement or white ordinary Portland cement (WOPC) is similar to ordinary, gray Portland cement in all aspects except for its high degree of whiteness. Obtaining this color requires substantial modifications to the method of manufacturing. It requires a much lower content in colored impurities in the raw materials (essentially limestone and clay) used to produce clinker: low levels of Cr2O3, Mn2O3, and Fe2O3), but above all, a higher temperature is needed for the final sintering step in the cement kiln (1600 to 1700 °C in place of 1450 °C for ordinary Portland cement) because of the higher melting point of the mix depleted in iron oxides (serving as flux in Portland cement). Because of this, the process is more energy demanding and the white cement is somewhat more expensive than the gray product.
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Several types of portlandcement are available. The most common, called ordinary portlandcement (OPC), is grey, but whiteportlandcement is also available...
ability of the cement to set in the presence of water (see hydraulic and non-hydraulic lime plaster). Hydraulic cements (e.g., Portlandcement) set and become...
Aalborg Portland is a cement-producing company in Denmark. It was established in Aalborg in the 19th century. Portlandcement was patented in 1824 by...
PortlandCement Works Precinct is a heritage-listed former cement works and limestone quarries and now disused industrial site at Williwa Street, Portland...
is a mixture of high-quality whitePortlandcement, marble powder, fine sand, and natural mineral colour pigments. Cement tiles being handmade are expected...
Typically its color was gray, from the innate color of most Portlandcement, but whitePortlandcement is also used. Today's stucco manufacturers offer a very...
tower's exterior is a lattice of poured-in-place concrete made from whitePortlandcement. The tower is segmented into 12-story blocks separated by open double-story...
Cape Portland, Tasmania, a cape on the north-eastern tip of Tasmania Portland, New South Wales, a town with the first Australian cement works Portland, Victoria...
is mixed with dry Portlandcement and water, the mixture forms a fluid slurry that is easily poured and molded into shape. The cement reacts with the water...
softening and clinkerization of these materials, as is the case with Portlandcement at around 1450 °C. In the absence of a softening temperature, calcium...
mesh size. Unlike Portlandcement, Rosendale cement does not require mixing of chemical additives. Historically, this natural cement product was packaged...
Ontario New Braunfels, Texas The company makes Portlandcements, fly ash cements, masonry cements, oilwell cements and soil stabilizers. It also operates a...
Ouagadougou Ouagadougou - cement works Douala - port - portlandcement Yaoundé - national capital - portlandcement Douala - cement works existing owned by...
important in Portlandcement manufacture. Its main constituent is dicalcium silicate, Ca2SiO4, sometimes formulated as 2 CaO · SiO2 (C2S in cement chemist...
Mo-Sai pre-cast concrete facing, a mixture of crushed quartz and whitePortlandcement quarried in Utah and Nevada. The temple is 369 feet (112 m) long...
Through colour render is a sand/cement/lime based render that is made from WhitePortlandcement (WOPC) and added pigment to produce a coloured effect...
Jurassic that is quarried on the Isle of Portland in Dorset, England. The quarries are cut in beds of white-grey limestone separated by chert beds. It...
He wears a me'īl. He is barefoot and has a beard. It is made of whiteportlandcement mixed with crushed pink stone. The statue is said to weigh 6,300...
Sandcrete is a yellow-white building material made from a binder (typically Portlandcement), sand in a ratio of circa 1:8, and water. Sometimes other...
Calcium Alumino-Silicate Cement (C3S, C2S with C3A)- PortlandCement Type I with Bismuth Trioxide. (ex. ProRoot MTA, MTA Angelus) White : Calcium Carbonate...
site was carried out by about 500 Turkish workers and engineers. WhitePortlandcement, glass and structural steel came from Germany, marble and ceramic...
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