CN109437725A - A kind of highway engineering agstone concrete and preparation method thereof - Google Patents

A kind of highway engineering agstone concrete and preparation method thereof Download PDF

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Publication number
CN109437725A
CN109437725A CN201811609902.XA CN201811609902A CN109437725A CN 109437725 A CN109437725 A CN 109437725A CN 201811609902 A CN201811609902 A CN 201811609902A CN 109437725 A CN109437725 A CN 109437725A
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China
Prior art keywords
agstone
parts
concrete
water
highway engineering
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CN201811609902.XA
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Chinese (zh)
Inventor
彭龙辉
王技孝
潘登
刘方华
吴琼
李永
连俊刚
向乐
温存良
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Third Engineering Co Ltd of Highway Engineering Bureau of CCCC
No 1 Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
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No 1 Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
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Priority to CN201811609902.XA priority Critical patent/CN109437725A/en
Publication of CN109437725A publication Critical patent/CN109437725A/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075Uses not provided for elsewhere in C04B2111/00 for road construction
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/27Water resistance, i.e. waterproof or water-repellent materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20Mortars, concrete or artificial stone characterised by specific physical values for the density
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention belongs to highway engineering field of material technology, more particularly, to a kind of highway engineering agstone concrete and preparation method thereof.Highway engineering agstone concrete in the present invention, is mainly composed of the following parts by weight: 250-300 parts of cement, 50-90 parts of agstone, 950-1000 parts of rubble, 880-920 parts of sand, 3-4 parts of water-reducing agent and 150-200 parts of water.The present invention selects the agstone for being easy acquisition and super quality and competitive price to be applied in concrete as New Mineral admixture, while to meet infrastructure construction to demand, reaches reduction construction cost, economizes on resources, energy-saving and environment-friendly purpose.Highway engineering agstone concrete has excellent anti-permeability performance and compression strength, and water resistant permeates grade and reaches S12, and Anti-Chloride Ion Penetration grade reaches Q- III, and 7 days survey compression strength is not less than 31MPa, and survey compression strength is not less than 38MPa within 28 days.

Description

A kind of highway engineering agstone concrete and preparation method thereof
Technical field
The present invention relates to highway engineering field of material technology, more particularly, to a kind of highway engineering agstone concrete And preparation method thereof.
Background technique
Flyash, slag powders etc. as admixture use very common, mine in the match ratio of cement concrete at present Polymer blends material has become the indispensable component of modern cement concrete.And China's agstone is mixed as cement for a long time One kind of material is closed, China, which also produces, agstone portland cement.Agstone is main as the mineral admixture of concrete It is used in grinding coagulation soil, self-compacting concrete, mass concrete of water conservancy project etc. and the concrete of architectural engineering, but In highway engineering concrete using less, the conventional minerals such as the available flyash in engineering project location, slag powders are mixed Conjunction is expected less, haul distance is remote, at high cost, and since deliverability is insufficient, processes the factors such as lack of standardization, cannot fully meet engineering construction It needs.
In consideration of it, the present invention is specifically proposed.
Summary of the invention
It is an object of the present invention to provide a kind of highway engineering agstone concrete, to solve to deposit in the prior art The available flyash in engineering project location, conventional minerals admixture is few, haul distance is remote, at high cost for slag powders etc., and Since deliverability is insufficient, processes the factors such as lack of standardization, the problem of engineering construction needs cannot be fully met.The application, which selects, to be held It easily obtains and the agstone of super quality and competitive price is applied in concrete as New Mineral admixture, to meet infrastructure construction While to demand, reach reduction construction cost, economizes on resources, energy-saving and environment-friendly purpose.And the highway engineering lime stone Powder concrete has excellent anti-permeability performance and compression strength, and the workability of agstone concrete, slump, divergence It is met the requirements with working performances such as apparent densities.
It is a further object to provide a kind of highway engineering preparation method of agstone concrete, this method It is easy to operate, it is at low cost, it is easy to implement, there is excellent mechanical property and work by the agstone concrete that this method obtains Make performance.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
A kind of highway engineering agstone concrete, is mainly composed of the following parts by weight:
250-300 parts of cement, 50-90 parts of agstone, 950-1000 parts of rubble, 880-920 parts of sand, 3-4 parts of water-reducing agent With 150-200 parts of water.
Preferably, the highway engineering is mainly composed of the following parts by weight with agstone concrete:
270-280 parts of cement, 65-80 parts of agstone, 960-980 parts of rubble, 900-910 parts of sand, water-reducing agent 3.3-3.6 Part and water 160-180 parts.
Preferably, the highway engineering is mainly composed of the following parts by weight with agstone concrete:
275-280 parts of cement, 70-78 parts of agstone, 970-980 parts of rubble, 900-905 parts of sand, water-reducing agent 3.4-3.5 Part and water 165-175 parts.
Preferably, the fineness of the agstone is not more than 15%;
The methylene blue number of the agstone is not more than 1.4g/kg;
The fluidity ratio of the agstone is 100-200%;
The water content of the agstone is not more than 15%;
The content of calcium carbonate is not less than 75% in the agstone;
Radionuclide I in the agstoneRaContent is not more than 1%, IrContent is not more than 1%.
Preferably, the mesh number of the agstone is 150-170 mesh, preferably 150-160 mesh.
Preferably, the agstone is to be obtained by lime stone by broken and grinding;
Preferably, the shattering process uses jaw crusher;
Preferably, the grinding process is using high-pressure overhang roll milling machine.
Preferably, the water-reducing agent is selected from least one of polycarboxylate water-reducer, naphthalene water reducer and amino water-reducing agent, Preferably polycarboxylate water-reducer.
The preparation method of highway engineering agstone concrete as described above, comprising the following steps:
Cement and lime mountain flour, rubble, sand, water-reducing agent and water are mixed, highway engineering agstone coagulation is obtained Soil.
Preferably, the mixing time is 120-300s.
Preferably, the mixing time is 150-200s.
Compared with the prior art, the invention has the following beneficial effects:
(1) present invention selects the agstone for being easy acquisition and super quality and competitive price to be applied to coagulation as New Mineral admixture In soil, while to meet infrastructure construction to demand, reach reduction construction cost, economizes on resources, energy-saving and environment-friendly purpose. Highway engineering agstone concrete has excellent anti-permeability performance and compression strength, and water resistant permeates grade and reaches S12, anti-chlorine Ion permeability energy grade reaches Q- III, and 7 days survey compression strength is not less than 31MPa, and 28 days survey compression strength is not less than 38MPa, and And the working performances such as workability, slump, divergence and apparent density of agstone concrete are met the requirements.
(2) preparation method of the highway engineering agstone concrete in the present invention, it is easy to operate, it is at low cost, it is easy Implement, there is excellent mechanical property and working performance by the agstone concrete that this method obtains.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is The conventional products that can be obtained by commercially available purchase.
A kind of highway engineering agstone concrete, is mainly composed of the following parts by weight:
250-300 parts of cement, 50-90 parts of agstone, 950-1000 parts of rubble, 880-920 parts of sand, 3-4 parts of water-reducing agent With 150-200 parts of water.
The present invention selects the agstone for being easy acquisition and super quality and competitive price to be applied to concrete as New Mineral admixture In, while to meet infrastructure construction to demand, reach reduction construction cost, economizes on resources, energy-saving and environment-friendly purpose.It should Highway engineering with agstone concrete have excellent anti-permeability performance and compression strength, and agstone concrete and it is easy The working performances such as property, slump, divergence and apparent density are met the requirements.
Due to dispersion effect of the agstone in concrete, the agstone particle acted in concrete has one Dividing and is filled in the gap of cement granules, the filling of some of particles increases the distance between script cement granules, so that Cement granules dispersion, increases the mobility and initial slump degree of concrete.Meanwhile other tiny agstone particles exist Play the role of solving wadding in the hydration process of cement, and then reduces loss of slump, enhancing water-retaining property, the workability for improving concrete Energy.
The typical but non-limiting parts by weight of cement are, for example, 250 parts, 255 parts, 260 parts, 265 parts, 270 parts, 275 Part, 280 parts, 285 parts, 290 parts, 295 parts or 300 parts.
The typical but non-limiting parts by weight of agstone are, for example, 50 parts, 55 parts, 60 parts, 65 parts, 70 parts, 75 Part, 80 parts, 85 parts or 90 parts.
The typical but non-limiting parts by weight of rubble are, for example, 950 parts, 955 parts, 960 parts, 965 parts, 970 parts, 975 Part, 980 parts, 985 parts, 990 parts, 995 parts or 1000 parts.
The typical but non-limiting parts by weight of sand are, for example, 880 parts, 885 parts, 890 parts, 895 parts, 900 parts, 905 Part, 910 parts, 915 parts or 920 parts.
The typical but non-limiting parts by weight of water-reducing agent are, for example, 3 parts, 3.1 parts, 3.2 parts, 3.3 parts, 3.4 parts, 3.5 Part, 3.6 parts, 3.7 parts, 3.8 parts, 3.9 parts or 4 parts.
The typical but non-limiting parts by weight of water are, for example, 150 parts, 155 parts, 160 parts, 165 parts, 170 parts, 175 Part, 180 parts, 185 parts, 190 parts, 195 parts or 200 parts.
Preferably, the highway engineering is mainly composed of the following parts by weight with agstone concrete:
270-280 parts of cement, 65-80 parts of agstone, 960-980 parts of rubble, 900-910 parts of sand, water-reducing agent 3.3-3.6 Part and water 160-180 parts.
Pass through the highway work that the available mechanical property of the parts by weight of further excellent each component and working performance are more excellent Journey agstone concrete.
Preferably, the highway engineering is mainly composed of the following parts by weight with agstone concrete:
275-280 parts of cement, 70-78 parts of agstone, 970-980 parts of rubble, 900-905 parts of sand, water-reducing agent 3.4-3.5 Part and water 165-175 parts.
Preferably, the fineness of the agstone is not more than 15%;
The methylene blue number of the agstone is not more than 1.4g/kg;
The fluidity ratio of the agstone is 100-200%;
The water content of the agstone is not more than 15%;
The content of calcium carbonate is not less than 75% in the agstone;
Radionuclide I in the agstoneRaContent is not more than 1%, IrContent is not more than 1%.
Preferably, the mesh number of the agstone is 150-170 mesh, preferably 150-160 mesh.
Table one is the performance indicator of each specifications and models agstone.
Each specifications and models agstone performance indicator of table one
Comprehensively consider in terms of balance agstone performance and production energy consumption two, formulates the fineness index of agstone, adopt It is not less than the agstone of 150 mesh, the preferably agstone of 150-170 with mesh number, more preferably uses mesh number for 150 mesh, carefully Mineral admixture of the agstone that degree is 4.5% as agstone concrete of the present invention, save the cost, and available Highway engineering agstone concrete that can be more excellent.
Preferably, the agstone is to be obtained by lime stone by broken and grinding;
Preferably, the shattering process uses jaw crusher;
The present invention selects the broken of the achievable bulk agstone of jaw crusher, and reduction ratio is big, broken lime Penicillium toxin is uniform.
Preferably, the grinding process is using high-pressure overhang roll milling machine.
Agstone should be stored individually, and should prevent from making moist and by other impurity pollutions such as dust.Mixing plant can be used Silo store agstone, favorably feed intake with it is moisture-proof.
Preferably, the water-reducing agent is selected from least one of polycarboxylate water-reducer, naphthalene water reducer and amino water-reducing agent, Preferably polycarboxylate water-reducer.
Water-reducing agent is one kind under conditions of maintaining concrete slump constant, outside the concrete that can be reduced mixing water amount Add agent.Concrete mixing is added using at least one of polycarboxylate water-reducer, naphthalene water reducer and amino water-reducing agent in the present invention There is preferable peptizaiton to cement granules after object, its working performance can be improved, reduce unit consumption of water, improves concrete mixing The mobility of object, or unit cement consumption is reduced, save cement.
The preparation method of highway engineering agstone concrete as described above, comprising the following steps:
Cement and lime mountain flour, rubble, sand, water-reducing agent and water are mixed, highway engineering agstone coagulation is obtained Soil.
Highway engineering in the present invention is easy to operate with the preparation method of agstone concrete, at low cost, is easy to implement, There is excellent mechanical property and working performance by the agstone concrete that this method obtains.
The present invention carries out the mixing of concrete using two shaft pugmill mixer.Double-horizontal forced concrete agitator Stirring not only occur in the radial direction, also occur on axis direction, main stirring area is located at the circumferencial direction of stirring body, can Stirring space is made full use of, so that the situation that agstone, rubble, sand, water-reducing agent and water are lower in stirring blade peripheral speed Under, reach uniform stirring mode in a short time, acquirement is good to mix and stir effect, and it is smaller to stir noise, and stirs It is directly in discharge port after the completion of material stirring, the discharge time is short.
Preferably, the mixing time is 120-300s.
Mixing time it is typical but non-limiting be, for example, 120s, 150s, 180s, 200s, 220s, 250s, 270s or 300s。
Preferably, the mixing time is 150-200s.
Below with reference to specific embodiment and comparative example, the present invention will be further described.
Embodiment 1
A kind of highway engineering agstone concrete, every cubic metre is mainly grouped as by the group of following weight:
Cement 278kg, agstone 70kg, rubble 977kg, sand 901kg, polycarboxylate water-reducer 3.48kg and water 174kg;
Wherein, the mesh number of agstone is 150 mesh, fineness 4.5%;
The sand coarse aggregate ratio of highway engineering agstone concrete is 48%;
The water-cement ratio of highway engineering agstone concrete is 0.5;
The preparation method of highway engineering agstone concrete, comprising the following steps:
Preparation mesh number is 150 mesh, the agstone that fineness is 4.5%, by cement, agstone, rubble, sand, polycarboxylic acids Water-reducing agent and water the mixing 150s in two shaft pugmill mixer, obtain highway engineering agstone concrete.
Embodiment 2
A kind of highway engineering agstone concrete, every cubic metre is mainly grouped as by the group of following weight:
Cement 280kg, agstone 70kg, rubble 970kg, sand 905kg, polycarboxylate water-reducer 3.4kg and water 178kg;
Wherein, the mesh number of agstone is 150 mesh, fineness 4.5%;
The preparation method of highway engineering agstone concrete, comprising the following steps:
Preparation mesh number is 150 mesh, the agstone that fineness is 4.5%, by cement, agstone, rubble, sand, polycarboxylic acids Water-reducing agent and water the mixing 130s in two shaft pugmill mixer, obtain highway engineering agstone concrete.
Embodiment 3
A kind of highway engineering agstone concrete, every cubic metre is mainly grouped as by the group of following weight:
Cement 275kg, agstone 78kg, rubble 980kg, sand 895kg, polycarboxylate water-reducer 3.5kg and water 170kg;
Wherein, the mesh number of agstone is 150 mesh, fineness 4.5%;
The preparation method of highway engineering agstone concrete, comprising the following steps:
Preparation mesh number is 150 mesh, the agstone that fineness is 4.5%, by cement, agstone, rubble, sand, polycarboxylic acids Water-reducing agent and water the mixing 120s in two shaft pugmill mixer, obtain highway engineering agstone concrete.
Embodiment 4
A kind of highway engineering agstone concrete, every cubic metre is mainly grouped as by the group of following weight:
Cement 300kg, agstone 90kg, rubble 950kg, sand 880kg, amino water-reducing agent 3kg and water 150kg.
Wherein, the mesh number of agstone is 150 mesh, fineness 4.5%;
The preparation method of highway engineering agstone concrete, comprising the following steps:
Preparation mesh number is 150 mesh, and the agstone that fineness is 4.5% subtracts cement, agstone, rubble, sand, amino Aqua and water the mixing 140s in two shaft pugmill mixer, obtain highway engineering agstone concrete.
Embodiment 5
A kind of highway engineering agstone concrete, every cubic metre is mainly grouped as by the group of following weight:
Cement 250-300kg, agstone 50-90kg, rubble 950-1000kg, sand 880-920kg, polycarboxylate water-reducer 3-4kg and water 150-200kg.
Wherein, the mesh number of agstone is 150 mesh, fineness 4.5%;
The preparation method of highway engineering agstone concrete, comprising the following steps:
Preparation mesh number is 150 mesh, the agstone that fineness is 4.5%, by cement, agstone, rubble, sand, polycarboxylic acids Aqua and water the mixing 200s in two shaft pugmill mixer, obtain highway engineering agstone concrete.
Comparative example 1
A kind of highway engineering concrete, in addition to replacing agstone with flyash, other operating procedures and embodiment 1 It is identical.
Comparative example 2
A kind of highway engineering concrete, except agstone uses mesh number for 130 mesh, fineness is other behaviour other than 20% It is same as Example 1 to make step.
Test example
Working performance, Mechanics Performance Testing and cost accounting, workability are carried out to the concrete in embodiment and comparative example Energy test result is as shown in Table 2, and mechanical experimental results are as shown in Table 3, and cost accounting is as shown in Table 4.
Two working performance test result of table
Three mechanical experimental results of table
Table four is the cost accounting comparative situation of embodiment 1 and comparative example 1
By table two and table three it is found that the present invention is applied in concrete using agstone as New Mineral admixture, The working performances such as workability, slump, divergence and the apparent density of concrete are met the requirements, and can improve the power of concrete Performance is learned, 7 days survey compression strength is not less than 31MPa, and survey compression strength is not less than 38MPa within 28 days.
As shown in Table 4, agstone concrete reduces by 5.7% than flyash concrete folk prescription cost, and the present invention uses Agstone is applied in highway engineering concrete as New Mineral admixture, can reach reduction construction cost, saves money Source, energy-saving and environment-friendly purpose.
Highway engineering agstone concrete in comparative example 2, except agstone uses mesh number for 130 mesh, fineness is Other than 20%, other operating procedures are same as Example 1.The mesh number of agstone in comparative example 2 will not protected in the present invention In the range of, obtained agstone concrete is good not as good as embodiment 1 in terms of working performance and mechanical property.It follows that The mesh number of agstone of the present invention just can get working performance within scope of protection of the present invention and mechanical property is more excellent Different agstone concrete, meets the needs of highway engineering construction concrete.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement;And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (10)

1. a kind of highway engineering agstone concrete, which is characterized in that be mainly composed of the following parts by weight:
250-300 parts of cement, 50-90 parts of agstone, 950-1000 parts of rubble, 880-920 parts of sand, 3-4 parts of water-reducing agent and water 150-200 parts.
2. highway engineering according to claim 1 agstone concrete, which is characterized in that the highway engineering stone Lime stone powder concrete is mainly composed of the following parts by weight:
270-280 parts of cement, 65-80 parts of agstone, 960-980 parts of rubble, 900-910 parts of sand, 3.3-3.6 parts of water-reducing agent and 160-180 parts of water.
3. highway engineering according to claim 1 agstone concrete, which is characterized in that the highway engineering stone Lime stone powder concrete is mainly composed of the following parts by weight:
275-280 parts of cement, 70-78 parts of agstone, 970-980 parts of rubble, 900-905 parts of sand, 3.4-3.5 parts of water-reducing agent and 165-175 parts of water.
4. highway engineering according to claim 1-3 agstone concrete, which is characterized in that the lime The fineness of mountain flour is not more than 15%;
And/or;
The methylene blue number of the agstone is not more than 1.4g/kg;
And/or;
The fluidity ratio of the agstone is 100-200%;
And/or;
The water content of the agstone is not more than 15%;
And/or;
The content of calcium carbonate is not less than 75% in the agstone;
And/or;
Radionuclide I in the agstoneRaContent is not more than 1%, IrContent is not more than 1%.
5. highway engineering according to claim 4 agstone concrete, which is characterized in that the mesh of the agstone Number is 150-170 mesh, preferably 150-160 mesh.
6. highway engineering according to claim 1-3 agstone concrete, which is characterized in that the lime Mountain flour is to be obtained by lime stone by broken and grinding;
Preferably, the shattering process uses jaw crusher;
Preferably, the grinding process is using high-pressure overhang roll milling machine.
7. highway engineering according to claim 1-3 agstone concrete, which is characterized in that the diminishing Agent is selected from least one of polycarboxylate water-reducer, naphthalene water reducer and amino water-reducing agent, preferably polycarboxylate water-reducer.
8. such as the preparation method of claim 1-7 described in any item highway engineerings agstone concrete, which is characterized in that The following steps are included:
Cement and lime mountain flour, rubble, sand, water-reducing agent and water are mixed, highway engineering agstone concrete is obtained.
9. the highway engineering according to claim 8 preparation method of agstone concrete, which is characterized in that described to stir Mixing the time is 120-300s.
10. the highway engineering according to claim 9 preparation method of agstone concrete, which is characterized in that described Mixing time is 150-200s.
CN201811609902.XA 2018-12-27 2018-12-27 A kind of highway engineering agstone concrete and preparation method thereof Pending CN109437725A (en)

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CN110342860A (en) * 2019-05-30 2019-10-18 苏州嘉盛远大建筑工业有限公司 A kind of Self-leveling self-compacting concrete and its processing method
CN111302716A (en) * 2020-03-31 2020-06-19 陈洪涛 Method for designing colored concrete
CN116177954A (en) * 2022-12-23 2023-05-30 中铁四局集团有限公司 Self-leveling concrete for road tunnel two-lining machine-made sand and preparation method thereof

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