retarder increases time to set, accelerator decreases setting time
Mineral admixture are those which are mixed with concrete ingredients and spread through out the body of concrete to favourably modify the properties of concrete . the commonly used mineral admixture are1. Fly ash2. Silica fume3. Rice Husk ash4. matakaoline
An admixtion is another name for an admixture, a mixture of various things.
Gypsum slows down the setting of cement. Although the terms cement and concrete often are used interchangeably, cement is actually an ingredient of concrete. Concrete is basically a mixture of aggregates and paste. The aggregates are sand and gravel or crushed stone; the paste is water and portland cement. Concrete gets stronger as it gets older. Portland cement is not a brand name, but the generic term for the type of cement used in virtually all concrete, just as stainless is a type of steel and sterling a type of silver. Cement comprises from 10 to 15 percent of the concrete mix, by volume. Through a process called hydration, the cement and water harden and bind the aggregates into a rocklike mass. This hardening process continues for years meaning that concrete gets stronger as it gets older. So, there is no such thing as a cement sidewalk, or a cement mixer; the proper terms are concrete sidewalk and concrete mixer.
Cement bricks are made of Cement- it's in the name.
L&T Cement
What is the actual english name of cement chatti??
cement
The name 'Medusa' would be appropriate for a type of cement, because Medusa, in Greek mythology, had the ability to turn people into stone if they looked her in the eyes. I suppose that stone is similar to cement, making it an appropriate name.
Morter
Douglass Setting's birth name is Douglass Albert Setting.
Retarders are classified as type B or type D chemical admixtures for portland cement concrete in ASTM Designation C494. Their primary function is, as the name implies, to retard the setting time of concrete.
cement