CN102390959B - High-bending-resistance wear-resistance and skid-resistance concrete for airdrome - Google Patents
High-bending-resistance wear-resistance and skid-resistance concrete for airdrome Download PDFInfo
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- CN102390959B CN102390959B CN201110222412.6A CN201110222412A CN102390959B CN 102390959 B CN102390959 B CN 102390959B CN 201110222412 A CN201110222412 A CN 201110222412A CN 102390959 B CN102390959 B CN 102390959B
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Abstract
The invention provides high-bending-resistance abrasion-proof skid-resistance concrete for an airdrome. Each cubic meter of concrete comprises 360kg of cement, 90kg of pulverized fuel ash, 703kg of sands, 1,100kg of continuously graded broken stones with maximal grain size of between 5mm and 25mm, 160kg of water, and 6.7kg of high-efficiency slushing agent. According to the concrete, the pavement has high bending resistance and high wear resistance, and the requirement for pavement structure service can be fulfilled.
Description
Technical field
The invention belongs to a kind of new formula of field of civil engineering concrete material.
Technical background
In recent years; road, many Flying Area in Airports face; comprise runway, taxiway, hardstand etc.; due to design, construction wrong; maintenance management input is few, and working life is longer, and flight density increases considerably in addition, machine updates the reasons such as rear load increase; the load of airstrip is grown with each passing day, cause the surface of a large amount of airstrips to reveal stone, Thin-layer separation, loose or damaged.This class disease of airstrip, not only can accelerate the deteriorated of face, shortens its work-ing life, and had a strong impact on airfield runway use properties, reduced security; Need to spend a large amount of human and material resources and financial resources are keeped in repair simultaneously, affect the communications and transportation of normal civil aviaton, produce direct financial loss.
Conventionally, cause that the principal element that airstrip destroys has:
(1) in building moulding process easily because plastic shrinkage produces microscopic checks, for destroying the intrusion of medium, provide passage;
(2) in normal military service process easily because the factors such as drying shrinkage, aircraft shock load, environmental corrosion (carbonization, freeze thawing, deicer salts, acid rain etc.) produce structure deteriorate;
(3) in plane tyre and road face repeated stock, friction process, anti-skid construction (as plucking, indent etc.) is easily destroyed, and reduces cling property, causes aircraft accident.
Summary of the invention
The object of the invention is to solve airport pavement agent on crack resistance of concrete folding and wear-resisting problem, high resistance folding wear-proof sliding-proof concrete for a kind of airport is provided, this concrete can make road surface have the performance of high resistance folding and high abrasion, meets pavement structure thing military service needs.
Realizing the object of the invention technical scheme is:
High resistance folding wear-proof sliding-proof concrete for a kind of airport, comprise cement, flyash, sand, coarse aggregate and high efficiency water reducing agent, the cement that the described concrete of every cubic metre contains 360kg, the flyash of 90kg, the sand of 703kg, maximum particle diameter is the rubble 1100kg of the continuous grading of 5mm～25mm, the water of 160kg and the high efficiency water reducing agent of 6.7kg, and the correlated performance parameter of above-mentioned each component is as follows:
The related physical mechanical property of described cement is as table 1:
Table 1 cement physical and mechanical property
The correlation technique parameter of described flyash is as table 2:
Table 2 flyash technical parameter
| Fineness (45 μ m square hole sieve) | Water demand ratio (%) | Loss on ignition (%) |
| 0.19 | 102 | 2.4 |
The Specifications of described sand is as table 3:
Table 3 sand technical indicator
| Fineness modulus | Silt content (%) | Clod content (%) |
| 2.54 | 0.3 | 0 |
Its Specifications of described coarse aggregate is in Table 4:
Table 4 coarse aggregate technical indicator
| Silt content (%) | Clod content (%) | Faller gill shape granule content (%) | Crush index value (%) |
| 0.2 | 0 | 5.3 | 5.7 |
Described high efficiency water reducing agent adopts high-efficiency water-reducing agent of poly-carboxylic acid, and its correlation parameter is as table 5:
Table 5 high-efficiency water-reducing agent of poly-carboxylic acid index of correlation
In technique scheme, described cement preference adopts Anhui conch PI42.5 cement.Described flyash preferably adopts Zhenjiang Hua Yuan I level flyash.Described sand preferably adopts Ganjiang River mixed medium sand.Described rubble preferably adopts Zhenjiang Chuan Shan rubble.
As a further improvement on the present invention, described concrete surface is provided with inorganic surfaces curing sealing agent, to improve concrete surface quality and compactness, increases wear resistance.
Beneficial effect of the present invention is, concrete rigidity of the present invention is large, intensity is high, good endurance.For improving the over-all properties of airstrip, by preferred concrete raw material, optimize mix Design parameter, adopt cracking resistance toughened fiber, adopt top layer treatment technology to improve wear-proof sliding-proof performance.And adopt concrete surface sealing and curing technology, inorganic surfaces curing sealing agent by high-quality, not only can improve concrete surface quality and compactness, increases wear resistance, more can make the safe operating life of airstrip greatly improve, there is significant actual application value.
Embodiment
Below in conjunction with embodiment, illustrate.
Embodiment 1
A high resistance folding wear-proof sliding-proof concrete for airport, comprises cement, flyash, sand, coarse aggregate and high efficiency water reducing agent
(1) the correlated performance parameter of above-mentioned each component is as follows:
1. cement: adopt Anhui conch PI42.5 cement, its related physical mechanical property is in Table 1.
Table 1 cement physical and mechanical property
2. flyash: adopt Zhenjiang Hua Yuan I level flyash, its correlation technique parameter is in Table 2.
Table 2 flyash technical parameter
| Fineness (45 μ m square hole sieve) | Water demand ratio (%) | Loss on ignition (%) |
| 0.19 | 102 | 2.4 |
3. sand: adopt Ganjiang River mixed medium sand, its Specifications is in Table 3.
Table 3 sand technical indicator
| Fineness modulus | Silt content (%) | Clod content (%) |
| 2.54 | 0.3 | 0 |
4. coarse aggregate: adopt Zhenjiang Chuan Shan rubble (5～25mm), its Specifications is in Table 4.
Table 4 coarse aggregate technical indicator
| Silt content (%) | Clod content (%) | Faller gill shape granule content (%) | Crush index value (%) |
| 0.2 | 0 | 5.3 | 5.7 |
5. high efficiency water reducing agent: adopt high-efficiency water-reducing agent of poly-carboxylic acid, correlation parameter is in Table 5
Table 5 high-efficiency water-reducing agent of poly-carboxylic acid index of correlation
(2) proportioning of each component is as shown in table 6
High resistance folding wear-proof sliding-proof concrete mix for table 6 airport
(3) airport is as follows by the concrete making method of high resistance folding wear-proof sliding-proof:
(3.1) by starting material and proportioning requirement, prepare each component;
(3.2) according to following requirement, stir:
1. cement, flyash, sand drop into and stir 30s;
2. add stone, water and admixture to stir 180s.
(3.3) according to relevant job specifications, vibrate;
(3.4) after form removal, the mode of taking at once geotextile to cover is carried out health, constantly keeps the skin wet and guarantee the moistening of concrete outside surface in health process, and conditioned time is no less than 7 days.
(4) airport is detected as follows by the concrete use result of high resistance folding wear-proof sliding-proof:
1. serviceability is as shown in table 7:
Table 7 serviceability
| Slump mm | Divergence mm | 1h slump-loss mm |
| 200 | 550*560 | - |
2. mechanical property (ultimate compression strength and folding strength) is as shown in table 8:
Table 8 mechanical property
| 3d ultimate compression strength | 7d ultimate compression strength | 28d ultimate compression strength | 28d folding strength |
| 37.5MPa | 44.9MPa | 55.3MPa | 7.5MPa |
3. in abrasion resistance, rate of wear is 0.22kg/m
2.
Claims (6)
1. for an airport, high resistance is rolled over wear-proof sliding-proof concrete, comprise cement, flyash, sand, coarse aggregate and high efficiency water reducing agent, it is characterized in that, the cement that the described concrete of every cubic metre contains 360kg, the flyash of 90kg, the sand of 703kg, the rubble 1100kg of the continuous grading that particle diameter is 5mm～25mm, the water of 160kg and the high efficiency water reducing agent of 6.7kg, the correlated performance parameter of above-mentioned each component is as follows: the related physical mechanical property of described cement is as table 1:
Table 1 cement physical and mechanical property
The correlation technique parameter of described flyash is as table 2:
Table 2 flyash technical parameter
The Specifications of described sand is as table 3:
Table 3 sand technical indicator
Its Specifications of described coarse aggregate is in Table 4:
Table 4 coarse aggregate technical indicator
Described high efficiency water reducing agent adopts high-efficiency water-reducing agent of poly-carboxylic acid, and its correlation parameter is as table 5:
Table 5 high-efficiency water-reducing agent of poly-carboxylic acid index of correlation
2. high resistance folding wear-proof sliding-proof concrete for airport according to claim 1, is characterized in that, described cement preference adopts Anhui conch PI42.5 cement.
3. high resistance folding wear-proof sliding-proof concrete for airport according to claim 1, is characterized in that, described flyash preferably adopts Zhenjiang Hua Yuan I level flyash.
4. high resistance folding wear-proof sliding-proof concrete for airport according to claim 1, is characterized in that, described sand preferably adopts Ganjiang River mixed medium sand.
5. high resistance folding wear-proof sliding-proof concrete for airport according to claim 1, is characterized in that, described rubble preferably adopts Zhenjiang Chuan Shan rubble.
6. high resistance folding wear-proof sliding-proof concrete for airport according to claim 1, is characterized in that, described concrete surface is provided with inorganic surfaces curing sealing agent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110222412.6A CN102390959B (en) | 2011-08-04 | 2011-08-04 | High-bending-resistance wear-resistance and skid-resistance concrete for airdrome |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110222412.6A CN102390959B (en) | 2011-08-04 | 2011-08-04 | High-bending-resistance wear-resistance and skid-resistance concrete for airdrome |
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| CN102390959A CN102390959A (en) | 2012-03-28 |
| CN102390959B true CN102390959B (en) | 2014-03-05 |
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| CN106316263B (en) * | 2016-08-24 | 2018-06-05 | 北京中交桥宇科技有限公司 | A kind of abrasion-proof concrete |
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Address after: 211112 No. 223 Simon Street, Jiangsu, Nanjing Patentee after: JSTI GROUP Co.,Ltd. Address before: 211112 No. 223 Simon Street, Jiangsu, Nanjing Patentee before: JIANGSU TRANSPORTATION RESEARCH INSTITUTE Co.,Ltd. |
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