Cement compositions for controlling alkali-silica reactions in concrete and processes for making same

A process for making cement which is stabilized against alkali-silica reactivity (ASR), the process comprises heating cement starting materials and lithium ores for a time and temperature sufficient to chemically react the cement starting materials and lithium ores, thus forming a cement clinker, wherein the lithium ores are present in an amount sufficient to minimize ASR in concrete.

A process for making cement which is stabilized against alkali-silica reactivity (ASR), the process comprises heating cement starting materials and lithium salts for a time and temperature sufficient to chemically react the cement starting materials and lithium salts, thus forming a cement clinker, wherein the lithium salts are present in an amount sufficient to minimize ASR in concrete.

A process for making concrete stabilized against alkali-silica reactivity (ASR), the process comprises mixing together cement, aggregate, and water, said cement produced by heating cement starting materials and lithium containing materials for a time and temperature sufficient to chemically react the cement starting materials and lithium containing materials, wherein the lithium containing materials are present in an amount sufficient to minimize ASR in concrete.

A process for making concrete stabilized against alkali-silica reactivity (ASR), the process comprises mixing together cement, aggregate, and water, said cement produced by heating cement starting materials and lithium ores for a time and temperature sufficient to chemically react the cement starting materials and lithium ores, wherein the lithium ores are present in an amount sufficient to minimize ASR in concrete.

A process for making concrete stabilized against alkali-silica reactivity (ASR), the process comprises mixing together cement, aggregate, and water, said cement produced by heating cement starting materials and lithium salt for a time and temperature sufficient to chemically react the cement starting materials and lithium salt, wherein the lithium salt is present in an amount sufficient to minimize ASR in concrete.

A process for making high alkali cement which is stabilized concrete against alkali-silica reactivity (ASR), the process comprises heating cement starting materials having a high alkali content and lithium containing materials for a time and temperature sufficient to chemically react the cement starting materials and lithium containing materials, thus forming a cement clinker, wherein the lithium containing materials are present in an amount sufficient to minimize ASR in concrete.

A process for making cement which is stabilized against alkali-silica reactivity (ASR), the process comprises heating in a cement kiln high alkali content cement starting materials and lithium containing materials for a time and temperature sufficient to chemically react the cement starting materials and lithium containing materials, thus forming a high alkali cement clinker, the lithium containing materials being present in an amount sufficient to minimize ASR in concrete, wherein said heating step results in the production of cement kiln dust, and wherein said process further comprises recirculating said cement kiln dust in the cement kiln.