Formula of cement slurry with high concretion rate

Abstract

The invention discloses a formula of cement slurry with high concretion rate. The formula of the cement slurry with the high concretion rate comprises cement, water, flaky superfine light-burned kaolin, sodium polyacrylate or a naphthalene sulfonic acid-formaldehyde condensate water-reducing agent and low-viscosity carboxymethyl cellulose. The concretion rate of the cement slurry prepared by the technical scheme provided by the invention can achieve 93-95%, and under the same conditions, the concretion rate can be improved by 23-25% in comparison with the cement slurry which is used currently, and the improvement rate is about 33-36%. The cement slurry can significantly improve the effects of grouting and water blocking.

Description

technical field

[0001] The invention relates to a formula of cement slurry with high calculus rate. Background technique

[0002] Cement slurry is the most important grouting material. It is mainly used for the reinforcement of roadways, foundations, culverts, dams and other projects, and is also used for grouting water blocking, grouting fire extinguishing and other fields.

[0003] Now, the basic formula of domestic cement slurry is: cement: water = 1:1 ~ 0.8. Sometimes, in order to increase the setting speed of the cement slurry, a small amount of water glass is added. The strength of cement slurry after solidification is generally 10MPa, and the stone formation rate is about 70%.

[0004] At present, there are two main formulations of domestic cement slurry:

[0005] The formula of the first common cement slurry is: cement: water = 1:1 ~ 0.8. The strength of cement slurry after solidification is generally 10MPa, and the stone formation rate is about 70%. The shortc...

Examples

Embodiment 1

[0024] The formula of cement slurry with high calculus rate is composed of cement, water, flaky ultrafine light-burned kaolin, sodium polyacrylate or naphthalenesulfonic acid formaldehyde condensation product water reducer, and low-viscosity methyl carboxyl cellulose, of which: the quality of cement and water The ratio is 1:1; the amount of flaky ultrafine lightly burned kaolin is 10% of the cement mass; the amount of sodium polyacrylate or naphthalenesulfonic acid formaldehyde condensation product water reducer is 0.3% of the cement mass; low viscosity methyl carboxy cellulose The dosage is 0.3% of the cement mass.

Embodiment 2

[0026] The formula of cement slurry with high calculus rate is composed of cement, water, flaky ultrafine light-burned kaolin, sodium polyacrylate or naphthalenesulfonic acid formaldehyde condensation product water reducer, and low-viscosity methyl carboxyl cellulose, of which: the quality of cement and water The ratio is 1:0.7; the amount of flaky ultrafine lightly burned kaolin is 15% of the cement mass; the amount of sodium polyacrylate or naphthalenesulfonic acid formaldehyde condensation product water reducer is 0.4% of the cement mass; low viscosity methyl carboxy cellulose The dosage is 0.4% of the cement mass.

Embodiment 3

[0028] The formula of cement slurry with high calculus rate is composed of cement, water, flaky ultrafine light-burned kaolin, sodium polyacrylate or naphthalenesulfonic acid formaldehyde condensation product water reducer, and low-viscosity methyl carboxyl cellulose, of which: the quality of cement and water The ratio is 1:0.65; the amount of flaky ultrafine light-burned kaolin is 20% of the cement mass; the amount of sodium polyacrylate or naphthalenesulfonic acid formaldehyde condensation product water reducer is 0.5% of the cement mass; low-viscosity carboxylated cellulose The dosage is 0.5% of the cement mass.

technical field

[0001] The invention relates to a formula of cement slurry with high calculus rate. Background technique

[0002] Cement slurry is the most important grouting material. It is mainly used for the reinforcement of roadways, foundations, culverts, dams and other projects, and is also used for grouting water blocking, grouting fire extinguishing and other fields.

[0003] Now, the basic formula of domestic cement slurry is: cement: water = 1:1 ~ 0.8. Sometimes, in order to increase the setting speed of the cement slurry, a small amount of water glass is added. The strength of cement slurry after solidification is generally 10MPa, and the stone formation rate is about 70%.

[0004] At present, there are two main formulations of domestic cement slurry:

[0005] The formula of the first common cement slurry is: cement: water = 1:1 ~ 0.8. The strength of cement slurry after solidification is generally 10MPa, and the stone formation rate is about 70%. The shortc...

Examples

Embodiment 1

[0024] The formula of cement slurry with high calculus rate is composed of cement, water, flaky ultrafine light-burned kaolin, sodium polyacrylate or naphthalenesulfonic acid formaldehyde condensation product water reducer, and low-viscosity methyl carboxyl cellulose, of which: the quality of cement and water The ratio is 1:1; the amount of flaky ultrafine lightly burned kaolin is 10% of the cement mass; the amount of sodium polyacrylate or naphthalenesulfonic acid formaldehyde condensation product water reducer is 0.3% of the cement mass; low viscosity methyl carboxy cellulose The dosage is 0.3% of the cement mass.

Embodiment 2

[0026] The formula of cement slurry with high calculus rate is composed of cement, water, flaky ultrafine light-burned kaolin, sodium polyacrylate or naphthalenesulfonic acid formaldehyde condensation product water reducer, and low-viscosity methyl carboxyl cellulose, of which: the quality of cement and water The ratio is 1:0.7; the amount of flaky ultrafine lightly burned kaolin is 15% of the cement mass; the amount of sodium polyacrylate or naphthalenesulfonic acid formaldehyde condensation product water reducer is 0.4% of the cement mass; low viscosity methyl carboxy cellulose The dosage is 0.4% of the cement mass.

Embodiment 3

[0028] The formula of cement slurry with high calculus rate is composed of cement, water, flaky ultrafine light-burned kaolin, sodium polyacrylate or naphthalenesulfonic acid formaldehyde condensation product water reducer, and low-viscosity methyl carboxyl cellulose, of which: the quality of cement and water The ratio is 1:0.65; the amount of flaky ultrafine light-burned kaolin is 20% of the cement mass; the amount of sodium polyacrylate or naphthalenesulfonic acid formaldehyde condensation product water reducer is 0.5% of the cement mass; low-viscosity carboxylated cellulose The dosage is 0.5% of the cement mass.