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Inorganic post-anchoring grouting slurry

A grouting material and post-anchoring technology, applied in the field of building structure reinforcement and building materials, can solve the problems of consuming large energy, affecting the construction progress, environmental medium corrosion of cement-based materials, etc., to achieve the effect of protecting the environment and saving energy

Inactive Publication Date: 2015-10-21
CHONGQING CONSTR ENG MUNICIPAL TRAFFIC ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cement-based anchoring materials have the following defects: First, cement manufacturing needs to consume a lot of energy and emit more greenhouse gases. Every ton of cement needs to consume about 0.95 tons of limestone, 0.3 tons of clay, and 0.2 tons of standard coal. About 1 ton of greenhouse gas has brought a heavy resource, energy and environmental burden to the sustainable development of society and economy; second, cement-based materials are also easily corroded by environmental media; third, the maintenance period of cement-based anchoring materials is long, which affects Construction Schedule

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Finely ground slag powder 100kg

[0036] Sodium water glass 50kg

[0037] Aluminate cement 5kg

[0038] Calcium Stearate 1kg

[0039] Quartz sand 200kg

[0040] Sodium lignosulfonate 0.5kg

[0041] Sodium metasilicate pentahydrate 1kg

[0042] Sodium phosphate 3kg.

[0043] First put 100kg of finely ground slag powder and 50kg of sodium water glass into the mixer for stirring. The density of sodium water glass is 1.3-1.4Kg / m3, and the modulus is 2.3-2.6. Sodium silicate can increase the compactness of the material. Finely ground slag powder has potential hydraulic gelling properties. Under the action of activators such as sodium silicate and sodium metasilicate pentahydrate, the hydration reaction generates calcium silicate hydrate (gelling material), which can display hydraulic gelation. Coagulation performance, is a high-quality raw material. It should be noted that there is no need to add water during use, and the water is provided by water glass.

[0044] T...

Embodiment 2

[0049] Finely ground slag powder 100kg

[0050] Sodium water glass 60kg

[0051] Aluminate cement 8kg

[0052] Calcium Stearate 2kg

[0053] Quartz sand 300kg

[0054] Sodium lignosulfonate 1kg

[0055] Sodium metasilicate pentahydrate 2kg

[0056] Sodium phosphate 4kg.

[0057] First put 100kg of finely ground slag powder and 60kg of sodium water glass into the mixer for stirring. The density of sodium water glass is 1.3-1.4Kg / m3, and the modulus is 2.3-2.6. Sodium silicate can increase the compactness of the material. Finely ground slag powder has potential hydraulic gelling properties. Under the action of activators such as sodium silicate and sodium metasilicate pentahydrate, the hydration reaction generates calcium silicate hydrate (gelling material), which can display hydraulic gelation. Coagulation performance, is a high-quality raw material. It should be noted that there is no need to add water during use, and the water is provided by water glass.

[0058] The...

Embodiment 3

[0063] Finely ground slag powder 100kg

[0064] Sodium water glass 70kg

[0065] Aluminate cement 10kg

[0066] Calcium Stearate 3kg

[0067] Quartz sand 500kg

[0068] Sodium lignosulfonate 1.5kg

[0069] Sodium metasilicate pentahydrate 3kg

[0070] Sodium phosphate 5kg.

[0071] First put 100kg of finely ground slag powder and 70kg of sodium water glass into the mixer for stirring. The density of sodium water glass is 1.3-1.4Kg / m3, and the modulus is 2.3-2.6. Sodium water glass can improve the compactness of the material. Finely ground slag powder has potential hydraulic gelling properties. Under the action of activators such as sodium silicate and sodium metasilicate pentahydrate, the hydration reaction generates calcium silicate hydrate (gelling material), which can display hydraulic gelation. Coagulation performance, is a high-quality raw material. It should be noted that there is no need to add water during use, and the water is provided by water glass.

[0072]...

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Abstract

The invention discloses an inorganic post-anchoring grouting slurry, and relates to the field of building materials. The invention aims at solving the problems of high energy consumption, low environment-medium corrosion resistance and long curing period of existing cement-based anchoring materials. The grouting slurry comprises the components of, by weight, 100 parts of finely ground slag powder, 50-70 parts of sodium water glass, 5-10 parts of aluminate cement, 1-3 parts of calcium stearate, 200-500 parts of quartz sand, 0.5-1.5 parts of lignin sulfonate, 1-3 parts of sodium metasilicate pentahydrate, and 3-5 parts of a retarder. With the grouting slurry formula provided by the invention, grouting slurry strength and durability are improved. Also, energy is saved, and the environment is protected.

Description

technical field [0001] The invention relates to building materials, in particular to building structure reinforcement technology, in particular to an inorganic post-anchor grouting material for planting steel bars and bolts during building reinforcement and reconstruction. Background technique [0002] technology [0003] With the process of urbanization and the expansion of the scale of infrastructure construction, a large number of construction projects have emerged. Due to various reasons, some new projects require partial or overall transformation. At the same time, a large number of existing concrete structures need to be properly reinforced and transformed according to specific conditions at present or in the future. For this reason, concrete post-anchoring technology is widely used in the reinforcement and transformation of construction projects. [0004] As a very applicable technology, post-anchor technology provides great convenience for the reinforcement and tra...

Claims

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Application Information

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IPC IPC(8): C04B28/26
Inventor 杨翔石从黎阳长江
Owner CHONGQING CONSTR ENG MUNICIPAL TRAFFIC ENG
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