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Grouting proppant for repairing grotto cracks, and preparing and using method thereof

A proppant and fissure technology, applied in the field of cultural relics protection, can solve the problems of poor cohesion, easy cracking, large shrinkage of materials, etc., and achieve the effect of good compatibility and long effective time.

Inactive Publication Date: 2020-02-04
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems in the use of this epoxy resin material: poor connection between the epoxy resin and the muddy and calcareous fillings attached to the cracks, large shrinkage of the material itself, easy cracking, poor durability, and poor durability when filling the cracks. It will crack itself after a while

Method used

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  • Grouting proppant for repairing grotto cracks, and preparing and using method thereof
  • Grouting proppant for repairing grotto cracks, and preparing and using method thereof

Examples

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Embodiment 1

[0035] A grouting proppant for repairing grotto fissures, including slurry and grouting proppant particles, the raw materials used to configure the slurry include 33% water, 6.7% cultural relic matrix material, 40.2% Natural hydraulic lime, 20.1% metakaolin, and 0.4% potassium silicate and 0.34% water reducing agent accounting for the mixture of the above four components;

[0036] The grouting proppant particles, in terms of mass percentage, its raw materials include 40% of natural hydraulic lime and 60% of kaolin.

[0037] A method for preparing a grouting proppant for repairing grotto fissures, comprising the preparation of slurry and the preparation of grouting proppant particles, specifically as follows:

[0038] Step 1, preparation of slurry:

[0039] 1.1. Use 30°C water to wash the cultural relic matrix material to remove water-soluble salts and other impurities;

[0040] 1.2. According to the mass ratio, weigh 33% of water, 6.7% of cultural relic matrix materials, 40....

Embodiment 2

[0059] A grouting proppant for repairing grotto fissures, including slurry and grouting proppant particles; raw materials for configuring the slurry include 37.5% water, 12.5% ​​cultural relic matrix material, 31.25% natural hydraulic lime, 18.75% metakaolin, and 0.5% potassium silicate and 0.51% water reducing agent accounting for the total mass of the above four components;

[0060] The raw materials of the grouting proppant particles include 50% natural hydraulic lime and 50% kaolin in terms of mass percentage.

[0061] A method for preparing a grouting proppant for repairing grotto fissures, comprising the preparation of slurry and the preparation of grouting proppant particles, specifically as follows:

[0062] Step 1, preparation of slurry:

[0063] 1.1. Use 50°C water to wash the cultural relic matrix material to remove water-soluble salts and other impurities;

[0064] 1.2, by mass ratio, take by weighing 37.5% water, 12.5% ​​cultural relic matrix material, 31.25% na...

Embodiment 3

[0083] A grouting proppant for repairing grotto fissures, including slurry and grouting proppant particles; raw materials for configuring the slurry include 41% water, 17.7% cultural relic matrix material, and 17.7% Natural hydraulic lime, 23.6% metakaolin, and 0.59% potassium silicate and 0.71% water reducing agent accounting for the mixture of the above four components;

[0084] The raw materials of the grouting proppant particles include 60% natural hydraulic lime and 40% kaolin in terms of mass percentage.

[0085] A method for preparing a grouting proppant for repairing grotto fissures, comprising the preparation of slurry and the preparation of grouting proppant particles, specifically as follows:

[0086] Step 1, preparation of slurry:

[0087] 1.1. Use 70°C water to wash the cultural relic matrix material to remove water-soluble salts and other impurities;

[0088] 1.2, by mass ratio, weigh 41% of water, 17.7% of cultural relic matrix materials, 17.7% of natural hydr...

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Abstract

The invention relates to a grouting proppant for repairing grotto cracks, and a preparing and using method thereof. The preparing and using method comprises the following steps: washing a cultural relic matrix material with water, and uniformly mixing the cultural relic matrix material, natural hydraulic lime, kaolin, potassium silicate and a water reducing agent to obtain a mixed dry material; adding water into the mixed dry material, and stirring until uniformity to obtain a slurry; taking and ball-milling kaolin and natural hydraulic lime, fully drying the slurry after ball-milling is finished, crushing and sieving the dried slurry to obtain a raw material, and adding water or drying the raw material to control the water content of the raw material to be 25-30% so as to prepare raw material balls; firing the raw material balls to form ceramsites which comprise large ceramsite and small ceramsite; and filling the cracks with the large ceramsite firstly to play a supporting role, thenfilling the small cracks with the small ceramsite, pouring the slurry to fill remaining cracks, and solidifying the slurry to complete crack repairing. The cracks filled with the grouting proppant isnot prone to cracking, and has a long repair validity period; and the prepared ceramsite and the slurry have good compatibility with cultural relics, and are suitable for repairing grotto cultural relics.

Description

technical field [0001] The invention belongs to the technical field of cultural relics protection, and in particular relates to a grouting proppant for repairing cracks in grottoes and its preparation and use method Background technique [0002] Rock mass fissures are one of the main factors that threaten the safety of grottoes. Under the long-term geological structure and weathering forces in the grotto area, a large number of layer fissures, structural fissures and unloading fissures have developed in the grotto area. Cutting the rock mass and figure statues in the cave area will cause damage to the surface of the rock mass, peeling off and falling off blocks, and also provide a seepage channel for water seepage. The water seeped down along the fissures and acted on the soluble rock mass, causing corrosion and secondary biological diseases on the surface of the statues, aggravating the damage to the rock mass of the grottoes, and causing the statues in the grottoes to be d...

Claims

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Application Information

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IPC IPC(8): C04B28/12C04B41/81C04B111/70
CPCC04B28/12C04B41/5084C04B41/81C04B2111/00672C04B2111/70C04B22/002C04B14/106C04B2103/302C04B12/04C04B14/28C04B14/04
Inventor 王芬贺鹏朱建锋罗宏杰汪加欢秦毅赵旭赵婷
Owner SHAANXI UNIV OF SCI & TECH
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