CN107226642A - It is a kind of to be used for the basalt fibre gunite concrete of heat evil constructing tunnel - Google Patents
It is a kind of to be used for the basalt fibre gunite concrete of heat evil constructing tunnel Download PDFInfo
- Publication number
- CN107226642A CN107226642A CN201610169278.0A CN201610169278A CN107226642A CN 107226642 A CN107226642 A CN 107226642A CN 201610169278 A CN201610169278 A CN 201610169278A CN 107226642 A CN107226642 A CN 107226642A
- Authority
- CN
- China
- Prior art keywords
- basalt fibre
- concrete
- gunite concrete
- constructing tunnel
- gunite
- 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.)
- Pending
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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/46—Rock wool ; Ceramic or silicate fibres
-
- 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
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to a kind of novel injection concrete, i.e. basalt fibre gunite concrete, a certain amount of basalt fibre and flyash are mixed on the basis of original gunite concrete, the heat that is particularly suitable for use in evil constructing tunnel.The advantage of basalt fibre and concrete is made full use of, the cleavage strength and adhesion strength of gunite concrete is improved, the composite Materials Design theory of " performance surpasses with economic benefits to be superimposed " is realized.
Description
Technical field
The present invention relates to a kind of novel injection concrete, that is, the gunite concrete of basalt fibre is mixed, original
Gunite concrete on the basis of mix a certain amount of basalt fibre and flyash, be particularly suitable for use in heat evil constructing tunnel.Fully
Using the advantage of basalt fibre and concrete, the cleavage strength and adhesion strength of gunite concrete are improved, " performance and warp is realized
The composite Materials Design theory of the super superposition of effect of helping ".
Background technology
Prior art is：Common gunite concrete
Constructed feature：It is general without template during construction, concreting is sprayed with Spray Gun Of The Pressure, concrete can be with applying
Work face closely bonds together, and forms complete and stable lining cutting layer, with easy construction, gain in strength be fast, density is good
(strong adaptability).
Under hot environment, common gunite concrete performance degradation is serious, shows as：Fragility is big, easy to crack, its adhesion strength
Loss is serious, or even unsticking cracking, and the support action of country rock is failed substantially.
It is poor under the parameters of construction technology and mechanics index of physics and normal temperature state of gunite concrete under the conditions of hot environment
Not larger, the high underground heat in tunnel and high-temperature water (vapour) effect can cause the increase of rebound of shotcrete amount, later strength to decline to a great extent
The problems such as.
The content of the invention
The purpose of the present invention, which is that, provides a kind of basalt fibre gunite concrete for heat evil constructing tunnel.
To achieve these goals, the technical solution adopted by the present invention is such：Basalt fibre gunite concrete is pressed
Every cubic metre of meter, match ratio is cement: water: sand: stone: accelerator=440: 198: 950: 810: 22 (units：Kg), wherein
Mix 6.05kg basalt fibre and 242kg flyash (basalt fibre and 10% flyash that mix 0.25%).
Compared with prior art, the advantage of the invention is that：(basalt fibre gunite concrete) of the invention is in baking oven mould
The hot environment (i.e. 70 DEG C) of plan, is conserved 7 days and 28 days, the cleavage strength and adhesion strength of concrete are greatly improved.
Thus illustrate, basalt fibre gunite concrete can be obviously improved in heat evil tunnel the drawbacks, tool such as Brittleness of Concrete is big, easy to crack
There is good service behaviour.
Pass through the following verification experimental verification The effect of invention：
From matching somebody with somebody for common gunite concrete and basalt fibre gunite concrete (adding basalt fibre and flyash)
Composition and division in a proportion, makes cube standard specimen respectively, and size is：150mm×150mm×150mm.
The curing condition of test specimen is：Using baking oven simulation tunnel hot environment, curing temperature is 70 DEG C, and curing time is fixed
For：7 days, 28 days.
The cleavage strength of heat evil Under Concrete is obtained by spilt test, as shown in table 1；By binding strength detecting instrument,
The adhesion strength of heat evil Under Concrete is measured, as shown in table 2.
The cleavage strength of the heat evil Under Concrete of table 1
The adhesion strength of the heat evil Under Concrete of table 2
It can be drawn by table 1：The hot environment (i.e. 70 DEG C) simulated in baking oven, is conserved 7 days and 28 days, basalt fibre injection
The cleavage strength of concrete is greatly improved compared with normal concrete；As seen from Table 2：The hot environment simulated in baking oven
(i.e. 70 DEG C), are conserved 7 days and 28 days, the adhesion strength of basalt fibre gunite concrete has larger carry compared with normal concrete
It is high.Therefore, appropriate basalt fibre and flyash are added in concrete can significantly improve gunite concrete in heat evil tunnel
Performance degradation, basalt fibre gunite concrete has good cleavage strength and adhesion strength.
Embodiment
By mix-design, cement, water, sand, stone, accelerator, the basalt fibre of certain mass are quantitatively weighed up
And flyash.Per cubic meter, match ratio is cement to basalt fibre gunite concrete: water: sand: stone: accelerator=
440: 198: 950: 810: 22 (units：Kg), wherein incorporation 6.05kg basalt fibre and 242kg flyash (are mixed
0.25% basalt fibre and 10% flyash).
Cement, sand and stone after weighing are stirred in mixer, and not timing adds basalt fibre and flyash,
After being stirred by mixer certain time, the water and accelerator by mix-design are added, continues to stir mixing, makes cement, sand
Son and basalt fibre are uniformly mixed, and make the gunite concrete of preparation more scientific and reasonable.
Claims (1)
1. a kind of basalt fibre gunite concrete for heat evil constructing tunnel, cement, water, sand, stone, accelerator, with
And basalt fibre and flyash, it is characterised in that：Appropriate basalt fibre and flyash is added to common gunite concrete,
Improve the cleavage strength and adhesion strength of gunite concrete, common gunite concrete performance degradation caused by reduction hot environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610169278.0A CN107226642A (en) | 2016-03-24 | 2016-03-24 | It is a kind of to be used for the basalt fibre gunite concrete of heat evil constructing tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610169278.0A CN107226642A (en) | 2016-03-24 | 2016-03-24 | It is a kind of to be used for the basalt fibre gunite concrete of heat evil constructing tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107226642A true CN107226642A (en) | 2017-10-03 |
Family
ID=59932851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610169278.0A Pending CN107226642A (en) | 2016-03-24 | 2016-03-24 | It is a kind of to be used for the basalt fibre gunite concrete of heat evil constructing tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107226642A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110590258A (en) * | 2019-09-25 | 2019-12-20 | 贵州省公路工程集团有限公司 | Tunnel sprayed concrete and preparation method thereof |
| CN112125609A (en) * | 2020-09-20 | 2020-12-25 | 河南理工大学 | Deep hot well roadway heat damage isolation material and preparation method thereof |
-
2016
- 2016-03-24 CN CN201610169278.0A patent/CN107226642A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110590258A (en) * | 2019-09-25 | 2019-12-20 | 贵州省公路工程集团有限公司 | Tunnel sprayed concrete and preparation method thereof |
| CN112125609A (en) * | 2020-09-20 | 2020-12-25 | 河南理工大学 | Deep hot well roadway heat damage isolation material and preparation method thereof |
| CN112125609B (en) * | 2020-09-20 | 2022-03-25 | 河南理工大学 | Deep hot well roadway heat damage isolation material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Harith | Study on polyurethane foamed concrete for use in structural applications | |
| Uysal et al. | Properties and behavior of self-compacting concrete produced with GBFS and FA additives subjected to high temperatures | |
| Dai et al. | Comparative study of different cement-based inorganic pastes towards the development of FRIP strengthening technology | |
| CN105693166B (en) | A kind of ultra-high performance concrete and preparation method thereof | |
| Zhao et al. | Effect of curing temperature on creep behavior of fly ash concrete | |
| Luso et al. | Experimental characterization of commercial lime based grouts for stone masonry consolidation | |
| CN102617059A (en) | Phosphate base cementing agent | |
| Ramujee | Development of low calcium flyash based geopolymer concrete | |
| CN109293318A (en) | Pervious concrete | |
| Yazıcı et al. | The effects of impact loading on the mechanical properties of the SFRCs | |
| Türkmen et al. | Several properties of mineral admixtured lightweight mortars at elevated temperatures | |
| CN105330197A (en) | Magnesium phosphate cement-based composite material property modifying additive | |
| CN103508713A (en) | Basalt fiber-reinforced active powder concrete and preparation method thereof | |
| CN107117914A (en) | High-strength freeze proof grouting material and preparation method thereof | |
| CN102617066A (en) | Liquid accelerator for calcium-containing aluminosilicate cementing material and preparation method for liquid accelerator | |
| Yang et al. | Effect of water content on the properties of lightweight alkali-activated slag concrete | |
| Liu et al. | Experimental study on a novel modified magnesium phosphate cement mortar used for rapid repair of portland cement concrete pavement in seasonally frozen areas | |
| Kamarulzaman et al. | Properties of cement brick containing expanded polystyrene beads (EPS) and palm oil fuel ash (POFA) | |
| CN107226642A (en) | It is a kind of to be used for the basalt fibre gunite concrete of heat evil constructing tunnel | |
| CN110002816A (en) | Pervious concrete | |
| CN102718443B (en) | Ceramsite dual-doped shotcrete for high-temperature tunnel rock surfaces | |
| Skoczylas et al. | The effects of waste glass cullets and nanosilica on the long-term properties of cement mortars | |
| CN112113813B (en) | Limestone-like similar material and preparation method and application thereof | |
| Arslan et al. | The effect of antifreeze admixtures on compressive strength of concretes subjected to frost action | |
| Wang et al. | Effect of silica fume on mechanical properties and carbonation resistance of concrete |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171003 |