CN109761556A - Early high-strength quick tunnel anchor shaft anchor cable construction adhesive - Google Patents
Early high-strength quick tunnel anchor shaft anchor cable construction adhesive Download PDFInfo
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- CN109761556A CN109761556A CN201910075678.9A CN201910075678A CN109761556A CN 109761556 A CN109761556 A CN 109761556A CN 201910075678 A CN201910075678 A CN 201910075678A CN 109761556 A CN109761556 A CN 109761556A
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Abstract
The invention discloses a kind of high-strength quick tunnel anchor shaft anchor cable construction adhesives of morning, are composed of the following raw materials in parts by weight: 100~120 parts of sulphate aluminium cement or 80~100 parts of portland cement, 12~15 parts of water-reducing agent, 3~5 parts of accelerator, 8~10 parts of swelling agent, 2~3 parts of thickener and crystalline silicon cut 1~2 part of mortar.Morning of the invention, high-strength quick tunnel anchor shaft anchor cable construction can quickly be solidified with adhesive in the short time, so that tensioning intensity reaches design requirement, achieved good effect, be ensure that working procedure is closely connected, save a large amount of duration and cost.
Description
Technical field
The present invention relates to the technical field of anchoring more particularly to a kind of slip casting anchoring materials.
Background technique
Anchor shaft anchor cable is the important method for reinforcing active support in the underground engineering constructions such as tunnel, bridge, underground station.?
In rock-bolt reinforcement work progress, the way that the anchoring of anchor cable or anchor pole generallys use is first to bore at the rock mass position for needing to anchor
Hole is inserted into anchor cable or anchor pole, grout injection or cement mortar bonding anchoring.But conventional anchor anchor cable carries out routine
After starching material slip casting, since ordinary cement Anchor Agent firm time is long, needed after grouting it is longer to the strong time such as solidifying, in the short time
Design tensioning intensity is not achieved in intensity, influences the linking process such as tensioning fixation, supporting, excavation of subsequent anchor cable or anchor pole, and
And easily interfered with each other with other working procedures, the engineering of construction period anxiety suffers from serious restriction, virtually increases and applies
Work cost, basic reason are the characteristics of strong, high-strength morning, rapid condensation are not achieved in the material of slip casting anchoring.
A kind of anchorage mortar as disclosed in Chinese Patent Application No. 201510662735.5, specifically includes following parts by weight
Raw material: cement or 20~90 parts of clinker；5~70 parts of sand；0.01~10 part of early strength agent；0.01~8 part of accelerator；Boundary
0.01~10 part of face binder；0.01~10 part of contacting permeation agent；0.01~10 part of micro-expanding agent；Acid-resistant powder 0.01~10
Part；0.01~10 part of insulation performance modifier；0~8 part of retarder；0~8 part of air entraining agent；0~8 part of cellulose；Defoaming agent 0~8
Part；0.01~8 part of water-reducing agent.The present invention has formula easy construction compared with traditional spike anchoring material, without heating tanning,
It is pollution-free, the advantages that high early strong and later strength not retraction, high withdrawal resistance, good insulating, it can prevent sleeper conduction from believing railway
Number interference, it is ensured that traffic safety.But the invention still remains following disadvantage or deficiency: being suitable for light rail and screw spike
Between anchoring, it is difficult to the anchor bolt grouting of the anchor pole or anchor cable that are suitable in tunnel.
For another example a kind of quick-hardening hih-strength cement anchoring agent disclosed in Chinese patent application 02135253.4, using fast hard sulphur aluminic acid
Semi-hydrated gypsum and quick lime is added as exciting agent as basic cementitious material in salt cement clinker, acceleration of hydration process, thus
It realizes rapid condensation, increases compression strength, flexural strength rapidly.But the invention still remains following disadvantage or deficiency: should
Anchor Agent has micro-expansibility, and free swelling rate is greater than 0.3% within three days, is not suitable for the anchoring of the anchor cable or anchor pole of tunnel rock
Slip casting.
Therefore it provides one kind, which can solve anchoring strength and technique contradiction, tensioning intensity, can be rapidly achieved design requirement, construction
High-strength quick tunnel anchor shaft anchor cable construction of highly-safe morning becomes urgent problem in the industry with adhesive.
Summary of the invention
The object of the present invention is to provide a kind of high-strength quick tunnel anchor shaft anchor cable construction adhesive (abbreviation ZGQ materials of morning
Material), by adding additive appropriate in cement, so that slip casting anchoring material reaches design tensioning intensity in a short time,
Expansion rate is low simultaneously, so as to shorten tensioning period and construction prestressed cable period, reduces engineering cost and construction risk.
To achieve the goals above, the present invention provides a kind of morning high-strength quick tunnel anchor shaft anchor cable construction adhesive,
Raw material composition including following parts by weight: 100~120 parts of sulphate aluminium cement or 80~100 parts of portland cement, water-reducing agent 12
~15 parts, 3~5 parts of accelerator, 8~10 parts of swelling agent, 2~3 parts of thickener and crystalline silicon cut 1~2 part of mortar.
Wherein, sulphate aluminium cement is low alkali quick hardening sulphoaluminate cement, carries out grinding processing, processing by airflow milling
It is 450~550m to specific surface area2/kg。
Portland cement can be No. 425 ordinary portland cements, No. 525 ordinary portland cements, No. 425 complex silicates
One of salt cement or No. 525 composite Portland cements are a variety of.
Preferably, the ratio of mud of morning of the invention high-strength quick tunnel anchor shaft anchor cable construction adhesive is 1:6~7, more
Preferably, the ratio of mud of early high-strength quick tunnel anchor shaft anchor cable construction adhesive is 3:20.
Selectively, water-reducing agent is in lignin sulfonic acid sodium salt water-reducing agent, naphthalene series high-efficiency water-reducing agent or polycarboxylate water-reducer
One or more.
Selectively, polycarboxylate water-reducer includes the aqua or pulvis of ethers or lipid polycarboxylate water-reducer.
Selectively, accelerator is lithium chloride or lithium carbonate.
Selectively, swelling agent is bulking agent of calcium aluminate.
Selectively, thickener is one of fume colloidal silica, sodium bentonite, organobentonite or diatomite.
Selectively, crystalline silicon cutting mortar includes: the polyglycol solution and silicon carbide that weight ratio is 1:0.8~1:1
Powder.
Selectively, the granularity of silicon carbide powder is 10 nanometers~20 nanometers.
It selectively, further include 50~60 parts of quartz sand.
Wherein, the initial flow of morning of the invention high-strength quick tunnel anchor shaft anchor cable construction adhesive (ratio of water to material 0.15)
Property be 343 millimeters, 30 minutes after mobility be 301 millimeters, 3 hours vertical expansion ratios are 0.03%, 24 hours vertical
Expansion rate and the difference of 3 hours vertical expansion ratios are 0.25%, chloride ion content 0.006%, bleeding rate 0.
The beneficial effects of the present invention are: (1), morning of the invention high-strength quick tunnel anchor shaft anchor cable construction adhesive are solidifying
Gu the compression strength after 24 hours is 45.6 megapascal, the compression strength after 72 hours is 68.6 megapascal, the compression strength after 28 days
Reach 90.6 megapascal, fully meet design tensioning intensity, has the advantages that early strong, high-strength, quick solidification, shorten anchor cable construction
Period reduces construction cost；(2), effective use crystalline silicon cuts mortar, and the anchoring for not only increasing slip casting anchoring material is hard
Degree, and reduce the purification process to crystalline silicon cutting mortar.
Specific embodiment
Next combined with specific embodiments below the present invention is described further, and following each embodiments are only used for illustrating
The present invention and do not limit the scope of the invention.
Embodiment 1:
Used proportion is (parts by weight):
120 parts of low alkali quick hardening sulphoaluminate cement, 15 parts of lignin sulfonic acid sodium salt water-reducing agent, 4 parts of lithium chloride, calcium aluminate are swollen
Swollen dose 9 parts, 2 parts of fume colloidal silica and crystalline silicon cut 2 parts of mortar.
It with adhesive with water is that 7:1 is mixed according to weight ratio by the morning of said ratio high-strength quick tunnel anchor shaft anchor cable construction
After carry out anchor bolt grouting.
Embodiment 2:
Used proportion is (parts by weight):
100 parts of low alkali quick hardening sulphoaluminate cement, 12 parts of naphthalene series high-efficiency water-reducing agent, 3 parts of lithium carbonate, bulking agent of calcium aluminate 8
Part, 3 parts of sodium bentonite and crystalline silicon cut 1 part of mortar.
It with adhesive with water is that 6:1 is mixed according to weight ratio by the morning of said ratio high-strength quick tunnel anchor shaft anchor cable construction
After carry out anchor bolt grouting.
Embodiment 3:
Used proportion is (parts by weight):
5 parts of 13 parts of aqua, lithium chloride, the calcium aluminate of 110 parts of low alkali quick hardening sulphoaluminate cement, ethers polycarboxylic acid water reducing agent
10 parts of swelling agent, 2 parts of organobentonite and crystalline silicon cut 1.5 parts of mortar.
It according to weight ratio is that 20:3 is mixed by the morning of said ratio high-strength quick tunnel anchor shaft anchor cable construction adhesive and water
Anchor bolt grouting is carried out after conjunction.
Embodiment 4:
Used proportion is (parts by weight):
No. 425 80 parts of ordinary portland cements, 4 parts of 14 parts of aqua, lithium carbonate, the calcium aluminate of lipid polycarboxylate water-reducer are swollen
Swollen dose 9 parts, 2.5 parts of diatomite and crystalline silicon cut 2 parts of mortar.
It with adhesive with water is that 7:1 is mixed according to weight ratio by the morning of said ratio high-strength quick tunnel anchor shaft anchor cable construction
After carry out anchor bolt grouting.
Embodiment 5:
Used proportion is (parts by weight):
No. 425 90 parts of composite Portland cements, 3 parts of 15 parts of pulvis, lithium chloride, the calcium aluminate of lipid polycarboxylate water-reducer are swollen
Swollen dose 8 parts, 2 parts of fume colloidal silica and crystalline silicon cut 1 part of mortar.
It according to weight ratio is that 6.5:1 is mixed by the morning of said ratio high-strength quick tunnel anchor shaft anchor cable construction adhesive and water
Anchor bolt grouting is carried out after conjunction.
Embodiment 6:
Used proportion is (parts by weight):
5 parts of 12 parts of pulvis, lithium carbonate, the calcium aluminate of No. 525 100 parts of ordinary portland cements, ethers polycarboxylic acid water reducing agent
10 parts of swelling agent, 3 parts of sodium bentonite and crystalline silicon cut 1.5 parts of mortar.
It according to weight ratio is that 20:3 is mixed by the morning of said ratio high-strength quick tunnel anchor shaft anchor cable construction adhesive and water
Anchor bolt grouting is carried out after conjunction.
Embodiment 7:
Used proportion is (parts by weight):
No. 525 85 parts of composite Portland cements, 13 parts of naphthalene series high-efficiency water-reducing agent, 4 parts of lithium chloride, bulking agent of calcium aluminate 10
Part, 3 parts of organobentonite, crystalline silicon 2 parts of mortar of cutting and 50 parts of quartz sand.
It with adhesive with water is that 7:1 is mixed according to weight ratio by the morning of said ratio high-strength quick tunnel anchor shaft anchor cable construction
After carry out anchor bolt grouting.
Embodiment 8:
Used proportion is (parts by weight):
100 parts of low alkali quick hardening sulphoaluminate cement, 14 parts of lignin sulfonic acid sodium salt water-reducing agent, 3.5 parts of lithium carbonate, calcium aluminate
8 parts of swelling agent, 3 parts of diatomite, crystalline silicon 1.5 parts of mortar of cutting and 60 parts of quartz sand.
It according to weight ratio is that 20:3 is mixed by the morning of said ratio high-strength quick tunnel anchor shaft anchor cable construction adhesive and water
Anchor bolt grouting is carried out after conjunction.
Morning of the invention high-strength quick tunnel anchor shaft anchor cable construction adhesive is successfully reached using Zhang Tielu eight in Beijing
In ridge tunnel, beautiful fragrant railway in the engineerings such as adopted tunnel, tensioning intensity reaches design requirement, good effect is achieved, so that applying
Work process is closely connected, and saves a large amount of duration and cost.
Although detailed description of the present invention preferred embodiment herein, it is to be understood that the invention is not limited to this
In the specific structure being described in detail and show and step, without departing from the spirit and scope of the present invention can be by this field
Technical staff realize other modifications and variant.
Claims (10)
1. a kind of morning high-strength quick tunnel anchor shaft anchor cable construction adhesive, which is characterized in that the raw material including following parts by weight:
100~120 parts of sulphate aluminium cement or 80~100 parts of portland cement, 12~15 parts of water-reducing agent, 3~5 parts of accelerator, expansion
8~10 parts of agent, 2~3 parts of thickener and crystalline silicon cut 1~2 part of mortar.
2. early high-strength quick tunnel anchor shaft anchor cable construction adhesive as described in claim 1, which is characterized in that the diminishing
Agent is one or more of lignin sulfonic acid sodium salt water-reducing agent, naphthalene series high-efficiency water-reducing agent or polycarboxylate water-reducer.
3. early high-strength quick tunnel anchor shaft anchor cable construction adhesive as claimed in claim 2, which is characterized in that the poly- carboxylic
Sour water-reducing agent includes the aqua or pulvis of ethers or lipid polycarboxylate water-reducer.
4. early high-strength quick tunnel anchor shaft anchor cable construction adhesive as described in claim 1, which is characterized in that the rapid hardening
Agent is lithium chloride or lithium carbonate.
5. early high-strength quick tunnel anchor shaft anchor cable construction adhesive as described in claim 1, which is characterized in that the expansion
Agent is bulking agent of calcium aluminate.
6. early high-strength quick tunnel anchor shaft anchor cable construction adhesive as described in claim 1, which is characterized in that the thickening
Agent is one of fume colloidal silica, sodium bentonite, organobentonite or diatomite.
7. early high-strength quick tunnel anchor shaft anchor cable construction adhesive as described in claim 1, which is characterized in that the crystal
Silicon cutting mortar includes: the polyglycol solution and silicon carbide powder that weight ratio is 1:0.8~1:1.
8. early high-strength quick tunnel anchor shaft anchor cable construction adhesive as claimed in claim 7, which is characterized in that the carbonization
The granularity of Si powder is 10 nanometers~20 nanometers.
9. morning high-strength quick tunnel anchor shaft anchor cable construction adhesive as described in any one of claims 1 to 8, feature exist
In further including 50~60 parts of quartz sand.
10. early high-strength quick tunnel anchor shaft anchor cable construction adhesive as claimed in claim 5, which is characterized in that the morning
The use ratio of high-strength quick tunnel anchor shaft anchor cable construction adhesive and water is 6~7:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910075678.9A CN109761556B (en) | 2019-01-25 | 2019-01-25 | Adhesive for construction of early high-strength rapid tunnel anchor rod and anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910075678.9A CN109761556B (en) | 2019-01-25 | 2019-01-25 | Adhesive for construction of early high-strength rapid tunnel anchor rod and anchor cable |
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| CN109761556A true CN109761556A (en) | 2019-05-17 |
| CN109761556B CN109761556B (en) | 2022-12-23 |
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| CN201910075678.9A Active CN109761556B (en) | 2019-01-25 | 2019-01-25 | Adhesive for construction of early high-strength rapid tunnel anchor rod and anchor cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111153661A (en) * | 2020-01-10 | 2020-05-15 | 深圳市蛇口招商港湾工程有限公司 | Sulphoaluminate cement-based material for ocean repairing protection engineering and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111153661A (en) * | 2020-01-10 | 2020-05-15 | 深圳市蛇口招商港湾工程有限公司 | Sulphoaluminate cement-based material for ocean repairing protection engineering and preparation method thereof |
| CN111153661B (en) * | 2020-01-10 | 2021-10-08 | 深圳市蛇口招商港湾工程有限公司 | Sulphoaluminate cement-based material for ocean repairing protection engineering and preparation method thereof |
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| CN109761556B (en) | 2022-12-23 |
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