A delayed-expansion cement mixture or slurry of hydraulic cement contains an expanding agent having hydrophobically modified surfaces with a hydrophobic and/or self-assembling film. A method to delay expansion of cement involves treating the expanding agent with a self-assembling film precursor compound, making the slurry with cement and water, and setting and expanding the cement. A cementing method places the mixture or slurry downhole where it is hardened and expanded.

A delayed-expansion cement mixture or slurry of hydraulic cement contains an expanding agent having hydrophobically modified surfaces with a hydrophobic and/or self-assembling film. A method to delay expansion of cement involves treating the expanding agent with a self-assembling film precursor compound, making the slurry with cement and water, and setting and expanding the cement. A cementing method places the mixture or slurry downhole where it is hardened and expanded.

Process for manufacturing a milk of lime of great fineness comprising at least the steps of providing one lime compound and forming said milk of lime with a process water and said lime compound.

Process for manufacturing a milk of lime of great fineness comprising at least the steps of providing one lime compound and forming said milk of lime with a process water and said lime compound.

A wellbore servicing composition comprising: cement kiln dust (CKD), an organic acid, and water. A method of servicing a wellbore penetrating a subterranean formation, comprising: placing a wellbore servicing composition into the wellbore, wherein the wellbore servicing composition comprises CKD, an organic acid, and water. A method of servicing a wellbore with annular space between a wellbore wall and casing disposed therein, wherein a first fluid is present in at least a portion of the annular space, comprising placing a second fluid into at least a portion of the annular space and displacing at least a portion of the first fluid from the annular space, and placing a third fluid into at least a portion of the annular space and displacing at least a portion of the second fluid from the annular space, wherein the second fluid, the third fluid, or both comprise CKD, an organic acid, and water.

A wellbore servicing composition comprising: cement kiln dust (CKD), an organic acid, and water. A method of servicing a wellbore penetrating a subterranean formation, comprising: placing a wellbore servicing composition into the wellbore, wherein the wellbore servicing composition comprises CKD, an organic acid, and water. A method of servicing a wellbore with annular space between a wellbore wall and casing disposed therein, wherein a first fluid is present in at least a portion of the annular space, comprising placing a second fluid into at least a portion of the annular space and displacing at least a portion of the first fluid from the annular space, and placing a third fluid into at least a portion of the annular space and displacing at least a portion of the second fluid from the annular space, wherein the second fluid, the third fluid, or both comprise CKD, an organic acid, and water.

A variety of systems, methods and compositions are disclosed, including, in one method, a method of cementing may comprise: providing a cement composition comprising: a hydraulic cement comprising Portland cement in an amount of about 50% by weight of hydraulic cement or less, water, and a phosphorylated amino polycarboxylic acid cement retarder; placing the cement composition in a wellbore; and allowing the cement composition to set. A cement composition, the composition comprising: a hydraulic cement comprising Portland cement in an amount of about 50% by weight of hydraulic cement or less; water; and a phosphorylated amino polycarboxylic acid cement retarder.

A variety of systems, methods and compositions are disclosed, including, in one method, a method of cementing may comprise: providing a cement composition comprising: a hydraulic cement comprising Portland cement in an amount of about 50% by weight of hydraulic cement or less, water, and a phosphorylated amino polycarboxylic acid cement retarder; placing the cement composition in a wellbore; and allowing the cement composition to set. A cement composition, the composition comprising: a hydraulic cement comprising Portland cement in an amount of about 50% by weight of hydraulic cement or less; water; and a phosphorylated amino polycarboxylic acid cement retarder.

A fire-resistant two-component mortar system contains a curable aqueous-phase aluminous cement component A and an initiator component B in aqueous-phase for initiating the curing process. Component A further contains at least one blocking agent selected from phosphoric acid, metaphosphoric acid, phosphorous acid and phosphonic acids, at least one plasticizer, and water. Component B contains an initiator, at least one retarder, at least one mineral filler, and water. A fire-resistant two-component system, which is ready-for-use, can be used for a fire-resistant chemical fastening of anchors and post-installed reinforcing bars in mineral surfaces, such as structures made of brickwork, concrete, pervious concrete or natural stone.

A fire-resistant two-component mortar system contains a curable aqueous-phase aluminous cement component A and an initiator component B in aqueous-phase for initiating the curing process. Component A further contains at least one blocking agent selected from phosphoric acid, metaphosphoric acid, phosphorous acid and phosphonic acids, at least one plasticizer, and water. Component B contains an initiator, at least one retarder, at least one mineral filler, and water. A fire-resistant two-component system, which is ready-for-use, can be used for a fire-resistant chemical fastening of anchors and post-installed reinforcing bars in mineral surfaces, such as structures made of brickwork, concrete, pervious concrete or natural stone.