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Burning stone fly ash slurry for anchoring of earthen ruins

A technology of fly ash and soil ruins, which is applied in the field of grouting materials for anchoring of soil ruins, can solve the problems of large differences in soil physical properties, strong chemical corrosion, and large color contrast, etc., and achieve low cost, good water permeability, and material convenient effect

Inactive Publication Date: 2016-05-11
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The grouting bodies used in cultural relics protection projects have the following requirements: the selected materials must meet the requirements of the performance and process conditions of the cultural relics to be protected, and interfere with the information contained in the cultural relics system as little as possible; have no adverse effects on personal health and cultural relics safety; The material matches the cultural relics; good anti-aging performance; good chemical properties must not only meet the chemical activity required for protection and treatment, but also have the stability of not having unnecessary chemical reactions with the cultural relic raw materials, so the selection of grouting body subject to many restrictions
[0004] Commonly used traditional materials such as cement concrete cannot be selected due to the large difference in physical properties from the site soil, strong chemical corrosion, and great color contrast.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The burnt stone fly ash slurry used for anchoring the soil ruins in this embodiment is composed of the following components: 550 g of burnt stone, 550 g of fly ash, and 495 g of water. That is, the mass ratio of burnt stone to fly ash is 1:1, and the water-cement ratio is 0.45.

[0024] Pour water, burnt stone and fly ash into the container in sequence and stir until uniform.

[0025] The prepared slurry is poured into the anchor section of the anchor hole within the pumpable period to form an anchor.

[0026] The results of the indoor test of the fired material slag fly ash slurry used for the anchorage of the soil site in this embodiment are as follows: the initial setting time is 72min, the final setting time is 6h, and the compressive strength of the formed anchor is 0.35MPa during the setting period of 3 days (3 days). The flexural strength is 0.19MPa; the 7d compressive strength is 0.66MPa, and the flexural strength is 0.18MPa; the 14d compressive strength is 1.8...

Embodiment 2

[0030] The burnt pebble fly ash slurry used for anchoring the soil ruins in this embodiment is composed of the following components: 670 g of burnt pebble, 670 g of fly ash, and 670 g of water. That is, the mass ratio of burnt stone to fly ash is 1:1, and the water-cement ratio is 0.50.

[0031] Pour water, burnt stone and fly ash into the container in sequence and stir until uniform.

[0032] The prepared slurry is poured into the anchor section of the anchor hole within the pumpable period to form an anchor.

[0033]The soil relics anchorage of the present embodiment is used for burning material stone fly ash slurry, the indoor test results are as follows: the initial setting time is 80min, the final setting time is 6.5h, and the compressive strength of the formed anchor body 3d (3 days) setting period is 0.32MPa, Flexural strength 0.17MPa; 7d compressive strength 0.64MPa, flexural strength 0.16MPa; 14d compressive strength 1.80MPa, flexural strength 0.55MPa; 28d compressiv...

Embodiment 3

[0036] The burnt stone fly ash slurry used for anchoring the soil ruins in this embodiment is composed of the following components: 550 g of burnt stone, 550 g of fly ash, and 440 g of water. That is, the mass ratio of burnt stone to fly ash is 1:1, and the water-cement ratio is 0.40.

[0037] Pour water, calcined stone and fly ash into the container in sequence and stir until uniform.

[0038] The prepared slurry is poured into the anchor section of the anchor hole within the pumpable period to form an anchor.

[0039] The results of the indoor test of the burning material and stone fly ash slurry for the anchorage of the soil ruins in this embodiment are as follows: the initial setting time is 65min, the final setting time is 5h, and the compressive strength of the formed anchor is 0.42MPa during the 3d (3 days) setting period. The flexural strength is 0.22MPa; the 7d compressive strength is 0.69MPa, and the flexural strength is 0.21MPa; the 14d compressive strength is 1.83...

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Abstract

The invention provides novel sintering material ginger nut fly ash slurry for earthen site anchoring, which comprises sintering material ginger nut, fly ash and water at a mass ratio of 1:1:(0.8-1.2). An anchoring body formed by grouting the novel sintering material ginger nut fly ash slurry for earthen site anchoring, provided by the invention, has relatively high early strength and strong stability and durability, is highly compatible with the earthen site body, does not interfere in the original appearance of the earthen site body, and avoids the bad impact on physical health and cultural relic safety, thereby being an ideal material for earthen site anchoring grouting, which is suitable for anchoring the earthen site in which the compressive strength of the soil body is 2-3Mpa under the construction technologies such as slit ramming, sand-containing slit ramming, gravel soil ramming and the like.

Description

technical field [0001] The invention relates to a grouting material for the anchorage of the earthen ruins, in particular to a grouting material, stone fly ash, for the anchorage of the earthen ruins. Background technique [0002] Geotechnical anchoring and grouting technology has become an important branch in the field of geotechnical engineering. Its main feature is to fully exert and improve the self-strength and self-stabilization ability of rock and soil, and the volume and quality of structures can be greatly reduced. Because of its construction safety, The reinforcement effect is ideal, and this technology has become one of the most economical and effective methods to improve the stability of geotechnical engineering and solve complex geotechnical engineering problems. In view of the characteristics of strong concealment, anchoring and grouting technology is also gradually introduced in cultural relics protection projects, especially in the protection and reinforcemen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B18/08
CPCY02W30/91
Inventor 张景科谌文武和法国田磊
Owner LANZHOU UNIVERSITY
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