CN108609972A - A kind of high-strength fast hard bolt grouting material - Google Patents
A kind of high-strength fast hard bolt grouting material Download PDFInfo
- Publication number
- CN108609972A CN108609972A CN201810569238.4A CN201810569238A CN108609972A CN 108609972 A CN108609972 A CN 108609972A CN 201810569238 A CN201810569238 A CN 201810569238A CN 108609972 A CN108609972 A CN 108609972A
- Authority
- CN
- China
- Prior art keywords
- cement
- flyash
- water
- ratio
- retarder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The weight ratio of a kind of high-strength fast hard bolt grouting material, including cement, water, flyash, quartz sand, water-reducing agent and retarder, flyash and cement is (0.25~1):1, the quality of water is (0.4~0.42) with the ratio of the gross mass of cement and flyash:1, the quality of quartz sand is (0.50~0.8) with the ratio of the gross mass of cement and flyash:1, the quality of water-reducing agent is (0.5%~0.90%) with the ratio of the gross mass of cement and flyash:1, the quality of retarder is (0.04%~0.08%) with the ratio of the gross mass of cement and flyash:1.The present invention realizes the high-strength fast hardness energy that stratum grouting and reinforcing and bolt grouting are reinforced, 4h compression strength>10MPa, and there is preferable mobility, the presetting period is 40 ± 5min.The injecting paste material of the present invention can realize the purpose of early-strong-fast-hard, and cheap, strong operability.
Description
Technical field
The present invention relates to a kind of high-strength fast hard bolt grouting materials, belong to injecting paste material technical field.
Background technology
China is that Tunnel Engineering is largest, quantity is most in the world, builds fastest country.By 2016
Bottom is completed vcehicular tunnel 14040km/15181, will be completed railway tunnel 15781km/14700 by the end of the year 2017, arrives
The year two thousand twenty, China express railway build up mileage up to 30,000 kilometers (existing 2.2 ten thousand kilometers), need to increase 0.8 ten thousand kilometers newly；Highway
Mileage is built up up to 150,000 kilometers (existing 13.1 ten thousand kilometers), 1.9 ten thousand kilometers need to be increased newly.In addition, planning also indicates that：Central and west regions
Transport development short slab is apparent, relatively lags behind, and need to strengthen the construction of central and west regions channel.Central and west regions have welcome the friendship of a new round
Logical infrastructure construction climax.
Based on mountainous region and weight mound, topographic and geologic complicated condition is changeable for central and west regions, and development traffic will necessarily encounter greatly
The Tunnel Engineering of amount.With the raising of tunnel construction standard and construction scale, high ground stress soft rock stress area is safely and efficiently passed through
Huge challenge is faced, when especially passing through weak loose crushing rock stratum, high ground stress soft rock stress large deformation problem protrudes, existing tunnel
Road theoretical method and construction technique level cannot meet the needs of engineering is prevented and reduced natural disasters.Such as：In September, 2017 is open to the traffic
The long 19.1km in the ridges Lan Yu Railway Mu Zhai tunnel, based on carbonaceous slate large deformation occurs for country rock in work progress, maximum convergence
Deformation reaches 2.59m, and maximum arch sedimentation reaches 1.81m, causes preliminary bracing to invade limit, cracking, local collapse with secondary lining, be forced
Arch frequently is changed, causes construction delay 33 months, social influence is severe.
It is different according to slip casting object and purpose, in tunnel slip casting can be divided into：Cave in body slip casting, tunnel sealing slip casting, ground
5 major class such as consolidation grouting, stratum consolidation slip casting, bolt grouting.Stratum slip casting and bolt anchorage (such as pressure-relieving achor bar) are that control is soft
Weak loose and broken formation large deformation is most effective, most common engineering measure.Therefore, the performance of slurries is for tunnel grouting engineering
It is particularly important.Injecting paste material is the key that reinforce weak surrounding rock to form fixing collar and Load -carring arch and provide anchor-holding force of anchor bolt.It is noting
In the design for starching engineering, the selection of slurries is important a ring, it directly affects the quality of slip casting and the cost of engineering.Due to
The purpose of slip casting is different with requirement, and the slurries of selection should also be different.The previous general injecting paste material of Tunnel Engineering is common silicic acid
Brine cement paste, cement paste (ratio of mud is in terms of the 0.5) setting time commonly greater than 5h, according to the tunnel normal procedure used time,
Tunnel has been carried out the construction of 1 separate explosion.Tunnel is additional in dead weight and blast disturbance since self structure stability is poor
Sedimentation and deformation is tended to occur under load action, more persons are up to 100~200mm/d, and the cement grout filled around anchor pole at this time is still
Without or only minimum intensity and bond stress, anchor-holding force of anchor bolt, the suspension function to preliminary bracing and the extruding to country rock
Reinforcement effect cannot be played timely and effectively, and country rock comes to nothing with preliminary bracing, and top covering rockmass loses supporting constraint, due to soft rock
Cohesion very little, it is difficult to which the additional load for overcoming dead weight and construction disturbance to generate makes arch rock mass generate downward sliding and pine
It is dynamic, and then arch relaxation zone is caused to expand, preliminary bracing structural stability further deteriorates, and steelframe distortion occurs and fractures, sprays
The preliminary bracings unstable failure problem such as concrete cracking aggravates the generation of large deformation disaster.Therefore, the prevention and control in large deformation tunnel are past
Toward extremely difficult and difficult become effective.Therefore, for the prevention of weak loose and broken formation serious deformation disaster, it is usually used in
The injecting paste material of stratum consolidation and bolt anchorage has the following disadvantages：
(1) it is lack of pertinence.The characteristic and mechanism shortage of weak loose and broken formation serious deformation catastrophe are directed to
Property, control effect is undesirable.
(2) early strength is low.Country rock cannot be reinforced in time and anchor-holding force of anchor bolt is provided, and (be especially in frequent construction disturbance
Blasting vibration) effect under, sedimentation and deformation easily occurs for preliminary bracing, comes to nothing with country rock, so draw above rock loosen, induce
Large deformation disaster occurs.
(3) slurries rate of set is slow.It dilutes, be lost in easily under groundwater effect, cause grouting quality poor.
(4) the design ratio of mud is unreasonable.W/C=1:1 excessively dilute cement grout is commonplace in tunnel grouting engineering.
(5) it has little effect, reaction is apparent.For soft rock, common Portland cement is starched not only in tunnel
It does not have a due effect, reinforces or anchoring effect is little, due also to the characteristics such as its excessively dilute ratio of mud and rate of set be slow, soft
Rock through a long time infiltrates, and emollescence is apparent, and intensity drastically deteriorates decaying, induces wall rock destabilization and destroys.Meanwhile tunnel overlying is enclosed
Rock load increases, and aggravates soft rock tunnel large deformation disaster.
(6) tunnel grouting scene dosage is inaccurate, influences slip casting effect.For complicated (the especially outer-penetrating agent of injecting paste material
Slurries excessively) are susceptible to the case where leakage adds or repeats to add certain additive, and complex procedures are not easy to promote and apply.
It can be seen that exploitation is applicable in weak loose and broken formation, meets large deformation tunnel grouting under complicated construction environment and want
It asks, and proportioning is simple and practical, operability is strong, cheap, function admirable injecting paste material is most important.
Invention content
The object of the present invention is to provide it is a kind of it is cheap, prepares simple, high-strength fast bolt grouting material firmly.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of high-strength fast hard bolt grouting material, including cement, water, flyash, quartz sand, water-reducing agent and retarder,
In, the weight ratio of flyash and cement is (0.25~1):1, the quality of water is (0.4 with the ratio of the gross mass of cement and flyash
~0.42):1, the quality of quartz sand is (0.50~0.8) with the ratio of the gross mass of cement and flyash:1, the quality of water-reducing agent
Ratio with the gross mass of cement and flyash is (0.5%~0.90%):1, the quality of retarder and cement and flyash it is total
The ratio of quality is (0.04%~0.08%):1.
The present invention, which further improves, to be, the grain size of quartz sand is 35~70 mesh.
The present invention, which further improves, to be, cement is 425 cement of quick hardening sulphoaluminate.
The present invention, which further improves, to be, flyash is I grades of flyash.
The present invention, which further improves, to be, water-reducing agent is polycarboxylic acids liquid water-reducing agent.
The present invention, which further improves, to be, retarder is citric acid.
The present invention, which further improves, to be, the weight ratio of flyash and cement is (0.25~0.5):1.
The present invention, which further improves, to be, the weight ratio of flyash and cement is 0.5:1.
Compared with the general injecting paste material of Tunnel Engineering, injecting paste material of the invention has the advantages that：
(1) high-strength fast hardness.For weak loose and broken formation serious deformation Disaster Characteristics, the present invention is by using conjunction
It is adapted to cement, water, flyash, quartz sand, water-reducing agent and the retarder of ratio, adequately achieves stratum grouting and reinforcing and bolt grouting
The high-strength fast hardness energy reinforced, 4h compression strength>10MPa, the timely and effective performance of energy is reinforced and suspension function, through the military high speed wood in Weihe
The tunnels Zhai Ling scene practical application, effect are extremely notable.And there is preferable mobility, the presetting period is 40 ± 5min.
(2) reasonable, strong operability is matched.Injecting paste material of the present invention is realized early strong using cement as cementitious material
Fast hard purpose；Cement consumption is saved by adding coal ash, enhances the pumpability of slurries；It is effectively improved by adding quartz sand
Frictional resistance and the shrinkage and creep for improving cement；Water consumption is reduced by adding water-reducing agent, effectively improves mortar strength；Pass through performance
Excellent, cheap, convenient material drawing retarder adjusts slurries setting time.Tunnel scene feeds and mix is simple, operability
By force, dispensing accuracy and slip casting efficiency are greatly improved.
(3) good penetrability, calculus rate are high.Cement-flying ash mortar of the present invention is with can not only penetrating into loose crushing
In the joint fissure of layer, and calculus rate is high, the coefficient of friction resistance is big, can effectively play the effect reinforced country rock and provide withdrawal resistance.
(4) cheap, it is suitble to promote.Injecting paste material of the present invention is in the premise for meeting experiment and engine request
Under, compared with cement paste, it can reduce by 30%~60% cement consumption by adding coal ash and sand, it is cheap,
It is easy to spread, it is truly realized function admirable, social benefit cheap, easy to spread.
Specific implementation mode
In order to make technical problems, technical solutions and advantages to be solved be more clearly understood, tie below
Embodiment is closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to solve
The present invention is released, is not intended to limit the present invention.
Cementitious material of 425 cement of quick hardening sulphoaluminate as grout coordinate ratio is selected in the present invention in each embodiment, is mixed
It is I grades of flyash to close material, and aggregate is quartz sand, and additive is polycarboxylic acids efficient liquid water-reducing agent, and retarder is industrial lemon
Acid.Gone out convenient for construction, high-strength fast hard injecting paste material, knot by single factor test Control experiment and durability strength test Optimization
The grouting parameter that indoor anchor bolt grouting Mix Ratio Test is obtained is closed, and is relied on by engineering of Weihe force ridges high speed Mu Zhai tunnel, is thrown
Enter practical application.
The injecting paste material of the present invention includes cement, water, flyash, quartz sand, water-reducing agent and retarder, wherein flyash
Weight ratio with cement is (0.25~1):1, the ratio of the quality of water and the gross mass of cement and flyash be (0.4~
0.42):1, the ratio of the gross mass of quartz sand and cement and flyash is (0.50~0.8):1, water-reducing agent and cement and flyash
Gross mass ratio be (0.5%~0.90%):1, the ratio of the gross mass of retarder and cement and flyash be (0.04%~
0.08%):1.The grain size of quartz sand is 35~70 mesh, and cement is 425 cement of quick hardening sulphoaluminate, and flyash is I grades of flyash,
Water-reducing agent is polycarboxylic acids liquid water-reducing agent, and retarder is citric acid.
The preparation method of injecting paste material of the present invention is：Cement, water, flyash, quartz sand, water-reducing agent and retarder are mixed
It closes uniform.
Embodiment 1
A kind of injecting paste material of cement mortar, including cement, water, I grade flyash, quartz sand (35~70 mesh) and additional
The weight ratio of agent (including water-reducing agent and retarder), the I grades of flyash and cement is 0.50:1, water and cementitious material (water
The mixture of mud and I grades of flyash) weight ratio be 0.40:1, quartz sand and the cementitious material (mixing of cement and I grades of flyash
Object) weight ratio be 1:1, water-reducing agent is with cementitious material (mixture of cement and I grades of flyash) weight ratio：0.90%:
1, retarder is with cementitious material (mixture of cement and I grades of flyash) weight ratio：0.08%:1.Using this proportioning
Injecting paste material obtained can meet for the high-strength fast rigid good with mobility of weak loose and broken formation tunnel grouting material
Two indexs.
Embodiment 2
A kind of injecting paste material of cement mortar, including cement, water, I grade flyash, quartz sand (35~70 mesh) and additional
The weight ratio of agent (including water-reducing agent and retarder), the I grades of flyash and cement is 1:1, water and cementitious material (cement with
The mixture of I grades of flyash) weight ratio be 0.40:1, quartz sand and cementitious material (mixture of cement and I grades of flyash)
Weight ratio is 0.50:1, water-reducing agent is with cementitious material (mixture of cement and I grades of flyash) weight ratio：0.90%:
1, retarder is with cementitious material (mixture of cement and I grades of flyash) weight ratio：0.04%:1.Using this proportioning
Injecting paste material obtained can meet for the high-strength fast rigid good with mobility of weak loose and broken formation tunnel grouting material
Two indexs.
Embodiment 3
A kind of injecting paste material of cement mortar, including cement, water, I grade flyash, quartz sand (35~70 mesh) and additional
The weight ratio of agent (including water-reducing agent and retarder), the I grades of flyash and cement is 0.25:1, water and cementitious material (water
The mixture of mud and I grades of flyash) weight ratio be 0.42:1, quartz sand and the cementitious material (mixing of cement and I grades of flyash
Object) weight ratio be 0.80:1, water-reducing agent is with cementitious material (mixture of cement and I grades of flyash) weight ratio：
0.50%:1, retarder is with cementitious material (mixture of cement and I grades of flyash) weight ratio：0.08%:1.Using this
Kind proportioning injecting paste material obtained can meet the high-strength fast rigid and stream for weak loose and broken formation tunnel grouting material
Good two indexs of dynamic property.
Embodiment 4
A kind of injecting paste material of cement mortar, including cement, water, I grade flyash, quartz sand (35~70 mesh) and additional
The weight ratio of agent (including water-reducing agent and retarder), the I grades of flyash and cement is 0.50:1, water and cementitious material (water
The mixture of mud and I grades of flyash) weight ratio be 0.42:1, quartz sand and the cementitious material (mixing of cement and I grades of flyash
Object) weight ratio be 0.50:1, water-reducing agent is with cementitious material (mixture of cement and I grades of flyash) weight ratio：
0.60%:1, retarder is with cementitious material (mixture of cement and I grades of flyash) weight ratio：0.04%:1.Using this
Kind proportioning injecting paste material obtained can meet the high-strength fast rigid and stream for weak loose and broken formation tunnel grouting material
Good two indexs of dynamic property.
Further, for the cement using 425 cement of quick hardening sulphoaluminate (15min initial sets), retarder uses citric acid,
The test specimen length of side is 40mm, span 100mm, loading velocity 50N/S.
1 novel slurry filling material test of Proportional Ratio of the present invention of table
As shown in Table 1, for two kinds of Different Water-Cement Ratios (0.40 and 0.42), by adjusting the relative scale between dispensing,
4 kinds of slurries that optimal screening goes out can meet mobility and high-strength fast rigid two indexs.And slurries setting time is with slow setting
The increase of agent content and promoted, test piece intensity with age growth stablize improve.
Further, it chooses embodiment 1 and carries out bolt grouting and pull-out test in outdoor side slope, and taken at the scene
Sample takes back laboratory maintenance, and specimen size is 70.7mm × 70.7mm × 70.7mm, using mechanical agitation mode, pressure testing
Machine model HYZ-300.10 types, loading velocity 1.3kN/S.
2 field sampling strength test record sheet of table
As shown in Table 2, in the experiment of cement-flying ash mortar field sampling, compression strength is with the test piece maintenance time
Increase and enhance, and can reach the compression strength of 28MPa in 28d.It should be noted that for the mean compressive strength of test specimen
It calculates in the following way：If deleting the number there are one ± 10% that measured value exceeds six average value in six measured values
According to using remaining compression strength average as final average data；If still existing beyond average in remaining five test values
The test result of the record data of value ± 10%, the then test block is cancelled.
Further, Portland cement (425R) net slurry and embodiment 1 this match ratio of the ratio of mud for 0.4 are used
Injecting paste material carries out side slope bolt grouting and pull-out test.Test result is as listed in table 3.
3 anchor rod drawing test result of table
As shown in table 3, novel slurry filling material of the invention, anchoring effect are significantly larger than common Portland cement
Net slurry, the pulling capacity of 4h have been 4 times of Portland cement net slurry 7d age pulling capacities.Meanwhile anchor force is with anchor
The increase of shank diameter and length and increase.It can be seen that the novel slurry filling material of the present invention realizes high-strength fast hard experiment mesh
, anchoring effect is extremely notable, meets Control Engineering soft rock tunnel large deformation requirement, and simple and practical, operational due to matching
By force, there is significant application value.
Embodiment 5
A kind of injecting paste material of cement mortar, including cement, water, I grade flyash, quartz sand (35~70 mesh) and additional
The weight ratio of agent (including water-reducing agent and retarder), the I grades of flyash and cement is 0.75:1, water and cementitious material (water
The mixture of mud and I grades of flyash) weight ratio be 0.41:1, quartz sand and the cementitious material (mixing of cement and I grades of flyash
Object) weight ratio be 0.60:1, water-reducing agent is with cementitious material (mixture of cement and I grades of flyash) weight ratio：
0.70%:1, retarder is with cementitious material (mixture of cement and I grades of flyash) weight ratio：0.05%:1.Using this
Kind proportioning injecting paste material obtained can meet the high-strength fast rigid and stream for weak loose and broken formation tunnel grouting material
Good two indexs of dynamic property.
Embodiment 6
A kind of injecting paste material of cement mortar, including cement, water, I grade flyash, quartz sand (35~70 mesh) and additional
The weight ratio of agent (including water-reducing agent and retarder), the I grades of flyash and cement is 0.80:1, water and cementitious material (water
The mixture of mud and I grades of flyash) weight ratio be 0.42:1, quartz sand and the cementitious material (mixing of cement and I grades of flyash
Object) weight ratio be 0.70:1, water-reducing agent is with cementitious material (mixture of cement and I grades of flyash) weight ratio：
0.80%:1, retarder is with cementitious material (mixture of cement and I grades of flyash) weight ratio：0.06%:1.Using this
Kind proportioning injecting paste material obtained can meet the high-strength fast rigid and stream for weak loose and broken formation tunnel grouting material
Good two indexs of dynamic property.
Embodiment 7
A kind of injecting paste material of cement mortar, including cement, water, I grade flyash, quartz sand (35~70 mesh) and additional
The weight ratio of agent (including water-reducing agent and retarder), the I grades of flyash and cement is 0.40:1, water and cementitious material (water
The mixture of mud and I grades of flyash) weight ratio be 0.42:1, quartz sand and the cementitious material (mixing of cement and I grades of flyash
Object) weight ratio be 0.80:1, water-reducing agent is with cementitious material (mixture of cement and I grades of flyash) weight ratio：
0.90%:1, retarder is with cementitious material (mixture of cement and I grades of flyash) weight ratio：0.07%:1.Using this
Kind proportioning injecting paste material obtained can meet the high-strength fast rigid and stream for weak loose and broken formation tunnel grouting material
Good two indexs of dynamic property.
The performance of slurries is particularly important for tunnel grouting engineering.The present invention is wanted for large-deformation tunnel in soft rock slip casting
It asks, combines closely with constructing tunnel process, fully consider that tunnel applies anchor pole (including slip casting) to subsequent cycle Blasting Excavation
The process used time (about 4h), it is desirable that novel slurry filling slurries of the present invention need to provide larger intensity and anchor force (experiment in 4h
Room index is compression strength>10MPa), in this way during construction disturbance (especially blasting vibration), tunnel perimeter country rock can be with
Fixing collar is formed, Load -carring arch is formed；Meanwhile anchor-holding force of anchor bolt can play a role, and give steelframe and gunite concrete one drawing
Power prevents preliminary bracing from sedimentation and deformation occur under blasting vibration effect, comes to nothing with country rock, gives country rock relaxation towing deformation
Space.Furthermore, it is contemplated that during the slip casting of tunnel scene, the time required to charging, mix, pumping and cleaning grouting equipment (about
For 40min), it is desirable that the grouting serous fluid presetting period of the present invention is 40 ± 5min.Therefore, slip casting material of the present invention
Two qualitative, quantitative Con trolling index of material are：
(1) high-strength fast hardness：4h compression strength>10MPa；
(2) mobility is good：Presetting period is 40 ± 5min.
Based on above-mentioned two basic indexs, the present invention is at the beginning of experiment to all kinds of cement (portland cement, normal silicate
Cement, Portland fly ash cement, composite Portland cement, sulphate aluminium cement, quick hardening sulphoaluminate cement, ferrous aluminate water
Mud, expanding cement etc.), admixture (flyash, alunite), aggregate (quartz sand, river sand, sea sand, aeolian sand), additive (subtract
Aqua, early strength agent, retarder, swelling agent) basic performance carried out careful investigation and analysis, by single factor experiment, orthogonal
Experiment, dilatancy experiment have carried out up to 500 groups of basic tests to all kinds of cement, and final optimization pass screening makes simple, easy behaviour
Make, high-strength hard, cheap, good penetrability, calculus rate high injecting paste material and match ratio soon.Finally by outdoor side slope, hole
Interior field test has carried out practical application, and effect is extremely notable, effectively controls soft rock tunnel concrete cracking, peels off, steelframe
Distort, fracture, preliminary bracing invade limit etc. large deformation disaster, can wide popularization and application in other Tunnel Engineering, slope project, water conservancy
In engineering, base pit engineering, great popularization.
The above content is in conjunction with specific embodiments to being further described, and it cannot be said that this hair made by the method for the present invention
The specific implementation of bright method is confined to this.For those of ordinary skill in the art to which the present invention belongs, it is not departing from
Several equivalent substitute or obvious modifications are made under the premise of present inventive concept, and performance or use is identical, all shall be regarded as belonging to
Present invention scope of patent protection determined by the appended claims.
Claims (8)
1. a kind of high-strength fast hard bolt grouting material, which is characterized in that including cement, water, flyash, quartz sand, water-reducing agent and
Retarder, wherein the weight ratio of flyash and cement is (0.25~1):1, the gross mass of the quality and cement and flyash of water
Ratio be (0.4~0.42):1, the quality of quartz sand is (0.50~0.8) with the ratio of the gross mass of cement and flyash:1, subtract
The ratio of the quality of aqua and the gross mass of cement and flyash is (0.5%~0.90%):1, the quality of retarder and cement with
The ratio of the gross mass of flyash is (0.04%~0.08%):1.
2. the high-strength fast hard bolt grouting material of one kind according to claim 1, which is characterized in that the grain size of quartz sand is 35
~70 mesh.
3. the high-strength fast hard bolt grouting material of one kind according to claim 1, which is characterized in that cement is fast hard sulphur aluminic acid
425 cement of salt.
4. the high-strength fast hard bolt grouting material of one kind according to claim 1, which is characterized in that flyash is I grades of fine coal
Ash.
5. the high-strength fast hard bolt grouting material of one kind according to claim 1, which is characterized in that water-reducing agent is polycarboxylic acids liquid
Body water-reducing agent.
6. the high-strength fast hard bolt grouting material of one kind according to claim 1, which is characterized in that retarder is citric acid.
7. the high-strength fast hard bolt grouting material of one kind according to claim 1, which is characterized in that the weight of flyash and cement
Amount is than being (0.25~0.5):1.
8. the high-strength fast hard bolt grouting material of one kind according to claim 1, which is characterized in that the weight of flyash and cement
Amount is than being 0.5:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810569238.4A CN108609972B (en) | 2018-06-05 | 2018-06-05 | High-strength quick-hardening anchor rod grouting material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810569238.4A CN108609972B (en) | 2018-06-05 | 2018-06-05 | High-strength quick-hardening anchor rod grouting material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108609972A true CN108609972A (en) | 2018-10-02 |
| CN108609972B CN108609972B (en) | 2021-01-19 |
Family
ID=63664659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810569238.4A Active CN108609972B (en) | 2018-06-05 | 2018-06-05 | High-strength quick-hardening anchor rod grouting material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108609972B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578021A (en) * | 2018-11-29 | 2019-04-05 | 长安大学 | A kind of economical high-strength fast grouting strengthening method of injecting paste material and soft rock tunnel firmly |
| CN111848028A (en) * | 2020-07-01 | 2020-10-30 | 太原理工大学 | Composite grouting material for weak fractured rock mass and preparation method thereof |
| CN112174616A (en) * | 2020-08-26 | 2021-01-05 | 煤科集团沈阳研究院有限公司 | Underground consolidation material and method for loose coal rock mass in small kiln damage area |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1709821A (en) * | 2005-06-08 | 2005-12-21 | 张振秋 | Cement-base dual-liquid slip-casting material |
| US20080008541A1 (en) * | 2005-03-24 | 2008-01-10 | Jacques Bertrand | Dry Grout Composition And Capsule For Anchoring Reinforcing Member, Dowel Or Anchor Elements |
| CN101157537A (en) * | 2007-08-02 | 2008-04-09 | 铁道科学研究院铁道建筑研究所 | Rapid-hardening self-leveling mortar material |
| CN101328054A (en) * | 2008-07-15 | 2008-12-24 | 安徽理工大学 | Novel slight expansion high strength internodal grouting material for high-strength drilling shaft lining |
| CN101497514A (en) * | 2008-06-05 | 2009-08-05 | 北京联合荣大工程材料有限责任公司 | Low cost cement self-leveling mortar |
| CN101693615A (en) * | 2009-09-29 | 2010-04-14 | 武汉市商品混凝土管理站 | Sulphoaluminate cement base synchronous slip casting material and preparation method |
| CN102267809A (en) * | 2010-06-02 | 2011-12-07 | 中冶建筑研究总院有限公司 | High strength cement mortar for connecting steel bars, and preparation method thereof |
| CN102295447A (en) * | 2011-05-31 | 2011-12-28 | 同济大学 | Quick-hardening early-strength structure reinforcement material based on aluminate cement and steel slag |
| CN102351503A (en) * | 2011-07-12 | 2012-02-15 | 安徽中铁工程材料科技有限公司 | High speed railway bridge bearing anchoring mortar material |
| CN102503324A (en) * | 2011-11-22 | 2012-06-20 | 北京新中岩建材科技有限公司 | Anchoring grouting material as well as preparation method and application thereof |
| CN102757206A (en) * | 2012-08-10 | 2012-10-31 | 安徽省煤田地质局第一勘探队 | Mine fracture grouting material and usage method thereof |
| CN102775115A (en) * | 2012-08-03 | 2012-11-14 | 北京中铁润海科技有限公司 | Anchoring mortar and application method thereof |
| CN103214217A (en) * | 2013-03-19 | 2013-07-24 | 中国矿业大学 | Composite superfine cement grout slurry and preparation method thereof |
| CN103449787A (en) * | 2012-05-28 | 2013-12-18 | 湖北中桥科技有限公司 | Underwater non-dispersible mortar and preparation method thereof |
| CN103613349A (en) * | 2013-11-15 | 2014-03-05 | 河南理工大学 | Formula and preparation method for two-fluid grouting or filling material |
| CN103833294A (en) * | 2013-11-07 | 2014-06-04 | 北京中煤矿山工程有限公司 | Single-liquid-stabilized cement-based slurry for surrounding rock consolidation of 1000-meter-depth horizontal roadway |
| CN103880372A (en) * | 2014-03-04 | 2014-06-25 | 北京纽维逊建筑工程技术有限公司 | Cement-based grouting material used for strengthening repairing as well as preparation method and application thereof |
| CN104276798A (en) * | 2013-07-05 | 2015-01-14 | 北京纽维逊建筑工程技术有限公司 | High flow regime low temperature early-strength cement based grouting material |
| CN105174877A (en) * | 2015-10-23 | 2015-12-23 | 河北青华建材有限公司 | Tunnel grouting material applicable to use in low-temperature environment |
| CN105604338A (en) * | 2015-12-21 | 2016-05-25 | 中国铁道科学研究院铁道建筑研究所 | Cement-based anchoring glue construction technology |
| CN106977153A (en) * | 2017-03-08 | 2017-07-25 | 中交第二航务工程局有限公司 | The shield synchronous grouting serous fluid and its construction method prepared using shield discarded slurry |
| CN107963841A (en) * | 2017-11-21 | 2018-04-27 | 山东科技大学 | A kind of swelling soft-rock roadway grouting material |
-
2018
- 2018-06-05 CN CN201810569238.4A patent/CN108609972B/en active Active
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080008541A1 (en) * | 2005-03-24 | 2008-01-10 | Jacques Bertrand | Dry Grout Composition And Capsule For Anchoring Reinforcing Member, Dowel Or Anchor Elements |
| CN1709821A (en) * | 2005-06-08 | 2005-12-21 | 张振秋 | Cement-base dual-liquid slip-casting material |
| CN101157537A (en) * | 2007-08-02 | 2008-04-09 | 铁道科学研究院铁道建筑研究所 | Rapid-hardening self-leveling mortar material |
| CN101497514A (en) * | 2008-06-05 | 2009-08-05 | 北京联合荣大工程材料有限责任公司 | Low cost cement self-leveling mortar |
| CN101328054A (en) * | 2008-07-15 | 2008-12-24 | 安徽理工大学 | Novel slight expansion high strength internodal grouting material for high-strength drilling shaft lining |
| CN101693615A (en) * | 2009-09-29 | 2010-04-14 | 武汉市商品混凝土管理站 | Sulphoaluminate cement base synchronous slip casting material and preparation method |
| CN102267809A (en) * | 2010-06-02 | 2011-12-07 | 中冶建筑研究总院有限公司 | High strength cement mortar for connecting steel bars, and preparation method thereof |
| CN102295447A (en) * | 2011-05-31 | 2011-12-28 | 同济大学 | Quick-hardening early-strength structure reinforcement material based on aluminate cement and steel slag |
| CN102351503A (en) * | 2011-07-12 | 2012-02-15 | 安徽中铁工程材料科技有限公司 | High speed railway bridge bearing anchoring mortar material |
| CN102503324A (en) * | 2011-11-22 | 2012-06-20 | 北京新中岩建材科技有限公司 | Anchoring grouting material as well as preparation method and application thereof |
| CN103449787A (en) * | 2012-05-28 | 2013-12-18 | 湖北中桥科技有限公司 | Underwater non-dispersible mortar and preparation method thereof |
| CN102775115A (en) * | 2012-08-03 | 2012-11-14 | 北京中铁润海科技有限公司 | Anchoring mortar and application method thereof |
| CN102757206A (en) * | 2012-08-10 | 2012-10-31 | 安徽省煤田地质局第一勘探队 | Mine fracture grouting material and usage method thereof |
| CN103214217A (en) * | 2013-03-19 | 2013-07-24 | 中国矿业大学 | Composite superfine cement grout slurry and preparation method thereof |
| CN104276798A (en) * | 2013-07-05 | 2015-01-14 | 北京纽维逊建筑工程技术有限公司 | High flow regime low temperature early-strength cement based grouting material |
| CN103833294A (en) * | 2013-11-07 | 2014-06-04 | 北京中煤矿山工程有限公司 | Single-liquid-stabilized cement-based slurry for surrounding rock consolidation of 1000-meter-depth horizontal roadway |
| CN103613349A (en) * | 2013-11-15 | 2014-03-05 | 河南理工大学 | Formula and preparation method for two-fluid grouting or filling material |
| CN103880372A (en) * | 2014-03-04 | 2014-06-25 | 北京纽维逊建筑工程技术有限公司 | Cement-based grouting material used for strengthening repairing as well as preparation method and application thereof |
| CN105174877A (en) * | 2015-10-23 | 2015-12-23 | 河北青华建材有限公司 | Tunnel grouting material applicable to use in low-temperature environment |
| CN105604338A (en) * | 2015-12-21 | 2016-05-25 | 中国铁道科学研究院铁道建筑研究所 | Cement-based anchoring glue construction technology |
| CN106977153A (en) * | 2017-03-08 | 2017-07-25 | 中交第二航务工程局有限公司 | The shield synchronous grouting serous fluid and its construction method prepared using shield discarded slurry |
| CN107963841A (en) * | 2017-11-21 | 2018-04-27 | 山东科技大学 | A kind of swelling soft-rock roadway grouting material |
Non-Patent Citations (2)
| Title |
|---|
| JIANXUN CHEN: "DAMAGE OF SHOTCRETE UNDER FREEZE-THAW LOADING", 《JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT》 * |
| JIANXUN CHEN: "Investigation of microstructural damage in shotcrete under a freeze–thaw environment", 《CONSTRUCTION AND BUILDING MATERIALS》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578021A (en) * | 2018-11-29 | 2019-04-05 | 长安大学 | A kind of economical high-strength fast grouting strengthening method of injecting paste material and soft rock tunnel firmly |
| CN111848028A (en) * | 2020-07-01 | 2020-10-30 | 太原理工大学 | Composite grouting material for weak fractured rock mass and preparation method thereof |
| CN112174616A (en) * | 2020-08-26 | 2021-01-05 | 煤科集团沈阳研究院有限公司 | Underground consolidation material and method for loose coal rock mass in small kiln damage area |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108609972B (en) | 2021-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109578021A (en) | A kind of economical high-strength fast grouting strengthening method of injecting paste material and soft rock tunnel firmly | |
| Zhang et al. | Development of cement-based self-stress composite grouting material for reinforcing rock mass and engineering application | |
| Najjar et al. | Critical overview of two-stage concrete: Properties and applications | |
| Cristelo et al. | Rheological properties of alkaline activated fly ash used in jet grouting applications | |
| O’Malley et al. | Investigation into viability of using two-stage (pre-placed aggregate) concrete in Irish setting | |
| CN107401159A (en) | A kind of premixing fluidised form solidified earth | |
| Zhang et al. | Experimental study on properties of a new type of grouting material for the reinforcement of fractured seam floor | |
| CN109384439B (en) | High-strength quick-hardening type sprayed concrete and soft rock tunnel surrounding rock sealing and reinforcing method | |
| CN108609972A (en) | A kind of high-strength fast hard bolt grouting material | |
| Chen et al. | Spraying characteristics of mining wet shotcrete | |
| CN108569877A (en) | A kind of early-strength tunnel grouting material | |
| CN106673541B (en) | Mylonite crushed zone shield-tunneling construction protrusion-dispelling gushes injecting paste material and preparation method thereof | |
| Gao et al. | Properties and application of thixotropic cement paste backfill with molybdenum tailings | |
| CN108585713A (en) | A kind of injecting paste material of cement mortar | |
| CN108609973A (en) | A kind of high-strength fast hard injecting paste material for strengthening stratum | |
| Zhang et al. | Improvement of tailings gradation on workability and strength of cemented tailings backfill | |
| Sha et al. | Strengthening effect of sulphoaluminate cementitious grouting material for water-bearing broken rocky stratum | |
| CN108774044A (en) | PC member reinforcing steel bar slurry anchor connection grouting materials based on phosphorus magnesium material and construction method | |
| CN108467245A (en) | A kind of anchor cable construction cement and the combined anchor cable grouting serous fluid of sulphate aluminium cement | |
| Yu et al. | Experimental study on physical properties of superfine cement grouting material | |
| CN104649629A (en) | Asbestos fiber, cement and pulverized fuel ash slurry and method for reinforcing soft soil with high water content, high plasticity indexes, high organic matter content and high structural performance by using asbestos fiber | |
| CN114213081A (en) | Grouting material for reinforcing water-rich stratum of subway tunnel with water dispersion resistance and preparation method thereof | |
| CN106082842A (en) | A kind of unique construction agent for deep-layer stirring construction and special clay hardening liquid | |
| Olbrecht et al. | Use of TBM chip as concrete aggregate | |
| Skazlic et al. | Application of high performance fibre reinforced shotcrete for tunnel primary support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |