A method for using an extended-life settable composition is disclosed. The method includes providing an extended-life settable composition comprising red mud, calcium hydroxide, water, and a cement set retarder. The method further includes activating the extended-life settable composition. The method additionally includes introducing the extended-life settable composition into a subterranean formation and allowing the extended-life settable composition to set in the subterranean formation.

Hardenable inorganic systems such as cements, plasters, ceramics or liquid silicates, usable for example in the building trade, construction industry or oil drilling industry. The insertion of carbonaceous nanofillers, such as carbon nanotubes, for reinforcing mechanical properties and improving such systems. A method for producing a master mixture including at least one superplasticizer and carbonaceous nanofillers at a mass ratio of between 0.1% and 25%, preferably between 0.2% and 20%, in relation to the total weight of the master mixture, and also to said master mixture thus obtained and to the use thereof in a hardenable inorganic system with a view to producing materials with improved properties. The disclosure applies to the construction industry, the building trade and the oil drilling industry.

Hardenable inorganic systems such as cements, plasters, ceramics or liquid silicates, usable for example in the building trade, construction industry or oil drilling industry. The insertion of carbonaceous nanofillers, such as carbon nanotubes, for reinforcing mechanical properties and improving such systems. A method for producing a master mixture including at least one superplasticizer and carbonaceous nanofillers at a mass ratio of between 0.1% and 25%, preferably between 0.2% and 20%, in relation to the total weight of the master mixture, and also to said master mixture thus obtained and to the use thereof in a hardenable inorganic system with a view to producing materials with improved properties. The disclosure applies to the construction industry, the building trade and the oil drilling industry.

The invention concerns a method for fluidifying wet concrete or industrial mortar compositions comprising: (a) at least one hydraulic binder, (b) at least one water reducing polymer, (c) at least one accelerator in the form of a salt containing at least one kosmotropic ion, (d) water, and (e) possibly one or more supplementary cementitious materials, and (f) possibly one or more filler materials, the method comprising a step of adding at least one salt (ch) including at least one chaotropic ion to the concrete or industrial mortar composition.

The invention concerns a method for fluidifying wet concrete or industrial mortar compositions comprising: (a) at least one hydraulic binder, (b) at least one water reducing polymer, (c) at least one accelerator in the form of a salt containing at least one kosmotropic ion, (d) water, and (e) possibly one or more supplementary cementitious materials, and (f) possibly one or more filler materials, the method comprising a step of adding at least one salt (ch) including at least one chaotropic ion to the concrete or industrial mortar composition.

A hydraulic composition is prepared by mixing (A) an admixture aqueous solution containing a water-soluble salt which is a water-reducing agent or setting retarder, and a water-soluble cellulose ether with (B) a fresh concrete composition containing a hydraulic substance, an aggregate, and water at job site. The method is effective for preventing the admixture solution from thickening even though the water-soluble cellulose ether without glyoxal treatment is used.

A hydraulic composition is prepared by mixing (A) an admixture aqueous solution containing a water-soluble salt which is a water-reducing agent or setting retarder, and a water-soluble cellulose ether with (B) a fresh concrete composition containing a hydraulic substance, an aggregate, and water at job site. The method is effective for preventing the admixture solution from thickening even though the water-soluble cellulose ether without glyoxal treatment is used.

The invention relates to a device comprising a cable and/or a cable accessory, said cable and/or cable accessory containing at least one insulating and fire-resistant layer, as well as to a method for manufacturing a cable and/or accessory of said type.

The invention relates to a device comprising a cable and/or a cable accessory, said cable and/or cable accessory containing at least one insulating and fire-resistant layer, as well as to a method for manufacturing a cable and/or accessory of said type.

The invention relates to a device comprising a cable and/or a cable accessory, said cable and/or cable accessory containing at least one insulating and fire-resistant layer, as well as to a method for manufacturing a cable and/or accessory of said type.