This disclosure relates to cementitious systems that are useful in the chemical arts, such as in the manufacture of products, such as construction materials. In particular, the present disclosure relates to compositions and methods for preparing certain cementitious systems, such as compositions including a cementitious material, limestone, and cellulose nanofibers (CNFs).

A method for stabilizing a wellbore includes introducing a hardening agent into the wellbore, mixing the hardening agent with a carrier fluid in the wellbore to produce a wellbore stabilizing fluid, and treating a wellbore wall of the wellbore by contacting the wellbore stabilizing fluid to a surface of the wellbore wall for at least 48 hours. A wellbore stabilizing fluid includes a hardening agent and a carrier fluid. The hardening agent is selected from one of 10 to 100 g/L of the calcium hydroxide nanocrystals, 5 to 99.9% by volume of tetraethyl orthosilicate (TEOS), and 10 to 50 g/L of zinc sulfate. A stabilized wellbore includes a wellbore having a wellbore wall treated with a wellbore stabilizing fluid comprising a hardening agent. The Young's modulus of the treated wellbore wall is at least 5% higher than a Young's modulus of a non-treated wellbore wall.

A method for stabilizing a wellbore includes introducing a hardening agent into the wellbore, mixing the hardening agent with a carrier fluid in the wellbore to produce a wellbore stabilizing fluid, and treating a wellbore wall of the wellbore by contacting the wellbore stabilizing fluid to a surface of the wellbore wall for at least 48 hours. A wellbore stabilizing fluid includes a hardening agent and a carrier fluid. The hardening agent is selected from one of 10 to 100 g/L of the calcium hydroxide nanocrystals, 5 to 99.9% by volume of tetraethyl orthosilicate (TEOS), and 10 to 50 g/L of zinc sulfate. A stabilized wellbore includes a wellbore having a wellbore wall treated with a wellbore stabilizing fluid comprising a hardening agent. The Young's modulus of the treated wellbore wall is at least 5% higher than a Young's modulus of a non-treated wellbore wall.

Systems and methods are provided for integrated system for producing hydrated lime slurry from calcium oxide using dry calcium hydroxide as an intermediary. A hydrator is configured to receive calcium oxide and to mix the received calcium oxide with water to produce dry hydrated lime. A dry hydrated lime transportation mechanism is configured to transport dry hydrated lime from the hydrator on a continuous basis over a period of time. A storage silo is configured to receive the dry hydrated lime from the transportation mechanism. A dispensing system is configured to dispense dry hydrated lime from the storage silo into a slurry tank for combining with water to generate hydrated lime slurry.

Systems and methods are provided for integrated system for producing hydrated lime slurry from calcium oxide using dry calcium hydroxide as an intermediary. A hydrator is configured to receive calcium oxide and to mix the received calcium oxide with water to produce dry hydrated lime. A dry hydrated lime transportation mechanism is configured to transport dry hydrated lime from the hydrator on a continuous basis over a period of time. A storage silo is configured to receive the dry hydrated lime from the transportation mechanism. A dispensing system is configured to dispense dry hydrated lime from the storage silo into a slurry tank for combining with water to generate hydrated lime slurry.