CN109734370A - A kind of cement concrete repair materials and preparation method thereof - Google Patents
A kind of cement concrete repair materials and preparation method thereof Download PDFInfo
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- CN109734370A CN109734370A CN201910195133.1A CN201910195133A CN109734370A CN 109734370 A CN109734370 A CN 109734370A CN 201910195133 A CN201910195133 A CN 201910195133A CN 109734370 A CN109734370 A CN 109734370A
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Abstract
The present patent application belongs to HIGHWAY MAINTENANCE and cement concrete field of engineering technology, specifically discloses a kind of cement concrete repair materials, including rubble, sand, healant, water-reducing agent and retarder.The invention also discloses the preparation methods of cement concrete repair materials, comprising the following steps: (1) weighs, (2) are stirred in advance and (3) secondary agitation.It is had excellent performance using the flexural strength and antiskid of this repair materials, after repairing concrete road surface, can be open to traffic within 5 hours.
Description
Technical field
The present patent application belongs to HIGHWAY MAINTENANCE and cement concrete field of engineering technology, specifically discloses a kind of coagulating cement
Native repair materials and preparation method thereof.
Background technique
Main node section (large-scale grade separation, charge station, bridge, tunnel etc.) mistake in highway and urban trunk road
Area concrete road surface is crossed since the volume of traffic is big, it is extremely easy to damage.Traffic control is usually required when reparation, so to above-mentioned section
The maintenance requirement in point section is quick, so as to the purpose being open to traffic rapidly.
Summary of the invention
The purpose of the present invention is to provide the cement concrete repair materials and preparation method thereof that one kind can be open to traffic rapidly.
In order to achieve the above object, the technical solution of the present invention is as follows:
A kind of cement concrete repair materials, including following raw material: 1100-1300 parts of rubble, 600-700 parts of sand and repairing
400-450 parts of agent.
The present invention also provides the preparation methods of above-mentioned cement concrete repair materials, comprising the following steps:
(1) it weighs: rubble 1100-1300 parts of weighing, 600-700 parts of sand and 400-450 parts of healant respectively；
(2) pre- stirring: rubble, sand and healant that step (1) obtains are put into blender and are stirred；
(3) secondary agitation: added into blender water be stirred mixing obtain this repair materials.
The principle and beneficial effect of this repair materials and preparation method thereof are:
(1) it when preparing repair materials using raw material (rubble, sand and healant) of the invention, needs to be added into raw material suitable
The water of amount is to guarantee the intensity of repair materials.
(2) the node section that cement concrete is repaired using this repair materials, can be open to traffic within 5 hours after reparation.
(3) after being open to traffic, the flexural strength of this repair materials can reach 5.0MPa or so, and coefficient of friction can reach 85-
95BPN.It is well known that the coefficient of friction of repair materials is the bigger the better, cement-concrete road is repaired using existing repair materials
Behind face, need just the coefficient of friction of repair materials can be made to reach requirement, but adopt on the surface " scratch " of repair materials, " cutting "
After repairing cement concrete pavement with repair materials of the invention and preparation method, the coefficient of friction of repair materials directly can
Reach 85-90BPN, the antiskid performance of repair place is far longer than normal concrete and remaining cement repair materials, can be complete
" scratch ", " cutting " this procedure are eliminated, the repairing time is further shortened, node section is enable to be open to traffic rapidly.
It further, further include 4-5 parts and water 100-130 parts of water-reducing agent.Water-reducing agent can promote rapidly this repair materials
Flexural strength.
It further, further include 0.4-0.5 parts of retarder.Retarder can delay the solidification of repair materials, to repair materials
0.4-0.5 parts are inside added, the presetting period of this repair materials can be controlled at 1-1.5 hours, firm time was controlled at 5 hours
Within, on the one hand, when reparation, the traffic control less than 5 hours is smaller to traffic impact, on the other hand, by the first of repair materials
Solidifying time control can prepare to worker's time enough at 1-1.5 hours and repair cement concrete pavement.
Further, the fineness modulus of the sand is 3.7-3.1.This repair materials uses coarse sand (fineness modulus 3.7-
3.1) flexural strength for improving this repair materials simultaneously and antiskid performance, are conducive to using the sand of the fineness modulus.
Further, the healant is CRM renovation agent.CRM renovation agent is a kind of high molecular polymerization modified inorganic gelling material
Material, CRM renovation agent can effectively improve the flexural strength and antiskid performance of this repair materials.
Further, the mixing time of the step (3) is 1-3min, and the anti-folding of the repair materials to prepare under this condition is strong
Degree and antiskid performance are preferable.
Further, the step (3) further includes that water-reducing agent is added into blender, and water-reducing agent can promote rapidly this reparation
The flexural strength of material.
Further, the water being added in the step (3) is 100-130 parts, water-reducing agent is 4-5 parts, to prepare under this condition
Repair materials flexural strength and antiskid performance it is preferable.
Further, the step (3) further includes that retarder 0.4-0.5 parts is added into blender, the addition energy of retarder
Enough presetting periods by this repair materials controlled at 1-1.5 hours.
Detailed description of the invention
Fig. 1 is the longitudinal section cross-sectional view of blender of the present invention；
Fig. 2 is the partial longitudinal section cross-sectional view of blender of the present invention；
Fig. 3 is the rotation outer cylinder of blender of the present invention, the longitudinal section cross-sectional view for rotating inner cylinder；
Fig. 4 is the partial enlarged view in Fig. 1 at A.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description include: pedestal 1, discharge port 11, cabinet 2, horizontal splitter plate 3, feed opening 31,
Feeding-in solid body chamber 41, liquid feedstock chamber 42, rotation outer cylinder 5, protrusion 51, accessibke porosity 52, rotation inner cylinder 6, stirrer gear 61, inner via hole
62, suspension part 71, closure 72, movable block 73, oscillating rod 74, vertical sliding bar 75, fixed link 76, first motor 81, first
Drive shaft 82, active external gear 83, the second motor 84.
Embodiment 1
A kind of cement concrete repair materials, including following raw material: 1100 parts of rubble, 600 parts of sand, 400 parts of healant, water
100 parts, 4 parts of water-reducing agent.
The invention also discloses the preparation methods of above-mentioned cement concrete repair materials, comprising the following steps:
(1) it weighs: 1100 parts of rubble of weighing, 600 parts of sand, 400 parts of healant, 100 parts of water and 4 parts of water-reducing agent respectively；
(2) pre- stirring: rubble, sand and healant that step (1) obtains are put into blender and are stirred；
(3) secondary agitation: adding water that step (1) obtains into blender and water-reducing agent is stirred mixing 1-
3min to get arrive this repair materials.
Healant is CRM renovation agent；The fineness modulus of sand is 3.7-3.1.
Embodiment 2-5
0.4 part of retarder is weighed in the step of difference of embodiment 2 and embodiment 1 is only that embodiment 2 (1), and in step
Suddenly 0.4 part of retarder is added when (3) into blender.
Embodiment 3-5 is only that the dosage of raw material is different from the difference of embodiment 2, the raw material of embodiment 1-5 it is specific
Dosage is referring to the following table 1.
Table 1
Repair materials made from embodiment 1-5 are repaired into cement concrete, when recording presetting period, the hardening of repair materials
Between, hardening when flexural strength, and hardening when coefficient of friction (specific data are referring to the following table 2).
Table 2
Conclusion
(1) the equal < of the firm time of repair materials made from embodiment 1-5 5 hours, it was demonstrated that use the reparation of this repair materials
Node section can be open to traffic within 5 hours.
(2) compared with Example 2, embodiment 1 is not added with retarder, and the presetting period is shorter, be unfavorable for worker preparation and
Construction；By adding 0.4-0.5 parts of retarder into embodiment 2-5, can will control in the presetting period on a 1-1.5 hours left sides
The right side, firm time controlled within 5 hours, provided time enough preparation for worker, repaired cement concrete pavement；Separately
Outside, the flexural strength of embodiment 1 is small compared with embodiment 2-5, it was demonstrated that the addition of 0.4-0.5 parts of retarder, can service hoisting originally repair
The flexural strength of multiple material.
(3) the antiskid performance (85-95BPN) of embodiment 1-5 will be far longer than normal concrete and remaining cement reparation
Material (50BPN or so).
Comparative example 1-8
Comparative example 1-8 and the difference of embodiment 1 are only that raw material adds that situation is different, the reparation material of Record Comparison example 1-8
The flexural strength of material, and coefficient of friction when hardening.The raw material of comparative example 1-8 adds situation, flexural strength and coefficient of friction
Referring to table 3.
Table 3
Conclusion
(1) rubble=1050 part in comparative example 1 (1100 parts of <), has found in the test of the flexural strength in later period, right
The flexural strength of ratio 1 will be lower than embodiment 1；Compared with Example 5, rubble=1350 part (1300 parts of >) of comparative example 2, system
When standby, rubble seriously affects the stirring of repair materials, it was demonstrated that the best addition number of rubble is 1100-1300 parts, and rubble adds
Dosage deficiency will affect the flexural strength of this repair materials, but the additive amount of rubble excessively will affect entire repair materials again
It is stirred.
(2) comparative example 3 uses fineness modulus for the middle sand of 3.0-2.3, and comparative example 4 is thin using fineness modulus 2.2-1.6's
The flexural strength of sand, comparative example 3 and comparative example 4, antiskid performance are poor, it was demonstrated that fineness modulus is the sand of 3.7-3.1 to originally repairing
The raising of the intensity and antiskid performance of multiple material is most important.
(3) comparative example 5 healant addition number be less than embodiment 1, the flexural strength and coefficient of friction of comparative example 5 compared with
Embodiment 1 is poor；The healant of comparative example 6 adds number > embodiment 5, but the flexural strength and coefficient of friction of comparative example 6 with
Embodiment 5 is close, it was demonstrated that the best addition number of healant is 400-450 parts, and healant adds excessive, only will cause repairing
The waste of agent.
Comparative example 9
Comparative example 9 and the difference of embodiment 5 are: the raw material of comparative example 9 is sand and healant, by sand and repairing when preparation
Agent carries out mixing and obtains comparative example 9 (the raw material additive amount of comparative example 9 is referring specifically to table 4).After preparation, Record Comparison example 9
Flexural strength when presetting period, firm time and hardening, the specific time is referring to table 5.
Table 4
Table 5
Conclusion
(1) comparative example 9 (existing repair materials/preparation method) is to mix healant with sand, the prior art
The related excellent performance of CRM renovation agent is reported, but in practical application, it is found by the applicant that is only carried out healant and sand
Mixing, application requirement is not achieved in presetting period, firm time and the flexural strength of repair materials completely, thus applicant explore to
Rubble, water-reducing agent and retarder are added in repair materials, control adding for rubble, sand, healant, water, water-reducing agent and retarder
Amount, so that (4 hours or so), which have been made within 5 hours, to be open to traffic, reparation material that flexural strength and antiskid are had excellent performance
Material.
In addition, the coefficient of friction of comparative example 9 (existing repair materials/preparation method) is lower, it is complete to be unable to strict guarantee
Meet code requirement (> 50BPN or so), " scratch ", " cutting " are also needed after reparation, to guarantee the coefficient of friction of repair materials
Code requirement is fully met, the application is dedicated to controlling the presetting period of repair materials, firm time and anti-folding by force when exploring
Degree, but last discovery uses repair materials and preparation method of the invention, the coefficient of friction of repair materials can reach 85-
90BPN, the antiskid performance of repair place are far longer than normal concrete and remaining cement repair materials, can eliminate completely
" scratch ", " cutting " this procedure.
Embodiment 6
As shown in Figs 1-4, the present invention prepare this repair materials by blender, and blender includes pedestal 1 and downwards
The cabinet 2 (bottom of the preferred cabinet 2 of the present embodiment is bolted to connection on pedestal 1) of opening, the top of cabinet 2 is provided with
Feed inlet is provided with discharge port 11 on the table top of pedestal 1.
Horizontal splitter plate 3 is equipped in cabinet 2, the top of horizontal splitter plate 3 is feed cavity, and the lower section of horizontal splitter plate 3 is
It is stirred chamber.
It is stirred intracavitary be equipped with and rotates outer cylinder 5 and the rotation inner cylinder 6 in rotation outer cylinder 5, rotate the center of outer cylinder 5
The line of centres with rotation outer cylinder 5 is in vertical, rotation outer cylinder 5 and rotation 6 inscribe of inner cylinder.It rotates outside being provided on the side wall of outer cylinder 5
Through-hole 52 rotates and is provided with inner via hole 62 (Fig. 3) on the side wall of inner cylinder 6.
Such as Fig. 4, feed cavity is interior to be equipped with lower materials and parts, and lower materials and parts include the vertical sliding of oscillating rod 74, two of movable block 73, two
Bar 75 and two fixed links 76, two oscillating rods, 74, two vertical sliding bars 75 and two fixed links 76 are respectively along movable block 73
Center line be arranged symmetrically, the bottom of fixed link 76 is fixedly connected on the upper surface of horizontal splitter plate 3, and (the present embodiment is preferably fixed
Bar 76 is bolted on the upper surface of horizontal splitter plate 3), the top of fixed link 76 and oscillating rod 74 are far from movable block 73
Side is hinged.Feed opening 31 and intercommunicating pore are provided on horizontal splitter plate 3, the top of vertical sliding bar 75 and oscillating rod 74 are close to living
One end of motion block 73 offsets, and the lower seal and vertical sliding of vertical sliding bar 75 are connected on intercommunicating pore, vertical sliding bar 75
Bottom and rotate outer cylinder 5 lateral wall offset.Vertical sliding bar 75 can drive oscillating rod 74 close to one end of movable block 73
It is swung up, when oscillating rod 74 is swung up close to one end of movable block 73, the lower part of movable block 73 is no longer by 31 envelope of feed opening
It closes.
The present embodiment is preferred, and movable block 73 includes suspension part 71, interconnecting piece and can be by the closed closure of feed opening 31
72, suspension part 71 is in the top of oscillating rod 74, and closure 72 is in the lower section of oscillating rod 74, and the top of vertical sliding bar 75 is driven
When moving up movable block 73, closure 72 is separated with feed opening 31, and the raw material in feed cavity is through feed opening 31, accessibke porosity 52
Into in rotation outer cylinder 5, rotation inner cylinder 6 is in rotation outer cylinder 5 in rotation process, and raw material is again through rotating the inner via hole 62 of inner cylinder 6
Into in rotation inner cylinder 6.
The present embodiment is preferred, rotates and is fixedly connected with protrusion 51 on the lateral wall of outer cylinder 5, when the blanking of horizontal splitter plate 3
When 52 face of accessibke porosity of mouth 31 and rotation outer cylinder 5, protrusion 51 drives vertical sliding bar 75 to slide straight up, vertical sliding bar
75 top drives movable block 73 to move up.
The present embodiment is preferred, and vertical separating plate is equipped in feed cavity, and feed cavity is divided into feeding-in solid body by vertical separating plate
Chamber 41 (in 2 left side of cabinet) and liquid feedstock chamber 42 (in 2 right side of cabinet).It is set at the top of cabinet 2 there are two the feed inlet,
Two feed inlets are respectively at the top of feeding-in solid body chamber 41 and the top of liquid feedstock chamber 42；Two are provided on horizontal splitter plate 3
A feed opening 31 and four intercommunicating pores.Two feed openings 31 are respectively at bottom and the liquid feedstock chamber 42 of feeding-in solid body chamber 41
Bottom.The lower materials and parts are respectively equipped in feeding-in solid body chamber 41 and liquid feedstock chamber 42.
The present embodiment is preferred, and the inner sidewall of cabinet 2 is set there are four limited block, the limited block of side two, rotates the two of outer cylinder 5
End has round sliding slot, and limited block is in round sliding slot, and is slidably connected with round sliding slot.
The present embodiment is preferred, rotates and is welded with stirrer gear 61 on the inner sidewall of inner cylinder 6.
The present embodiment is preferred, and blender further includes the first force piece that rotation outer cylinder 5 can be driven to rotate and can drive
Rotate the second force piece that inner cylinder 6 rotates.First force piece include first motor 81, the first drive shaft 82 and in rotation outer cylinder
Two active external gears 83 of 5 lower parts, rotation outer cylinder 5 are externally provided with the tooth engaged with active external gear 83, and first motor 81 is fixed
It is connected on pedestal 1, the output shaft of first motor 81 and one end of the first drive shaft 82 are bolted to connection, active external tooth
Wheel 83, which is bolted, to be socketed in outside the first drive shaft 82.First motor 81 passes through the first drive shaft 82, active external gear 83
Rotation outer cylinder 5 is driven to rotate.
Second force piece is the second motor 84, and the output shaft of the second motor 84 and one end of rotation inner cylinder 6 are solid by bolt
Fixed connection.The connecting hole passed through for the output shaft of the second motor 84 is provided on rotation outer cylinder 5.
The working principle of repair materials is prepared using this blender are as follows:
A, by rubble, sand, feeding-in solid body chamber 41 of the healant investment in the left side of cabinet 2, first motor 81 and the are controlled
The rotation of two motors 84, (feed opening 31 of horizontal splitter plate 3 leads to the accessibke porosity 52 of guarantee rotation outer cylinder 5 with outer at this time straight up
52 face of hole), rotate the inner via hole 62 of outer cylinder 5 straight down (as shown in Figure 3).At this point, protrusion 51 drives vertical sliding bar 75
It slides straight up, the top of vertical sliding bar 75 drives movable block 73 to be swung up, and the lower part of movable block 73 is no longer by blanking
Mouth 31 is closed, and the raw material in fixed feed cavity enters in rotation outer cylinder 5 through feed opening 31, accessibke porosity 52.
B, only start the second motor 84, the second motor 84 drives rotation inner cylinder 6 to rotate, and rotation inner cylinder 6 is in rotation outer cylinder 5
In rotation process, the inner via hole 62 that rubble, sand, healant are rotated inner cylinder 6 enters in rotation inner cylinder 6, and in rotation inner cylinder 6
It is thoroughly mixed.
C, the feeding-in solid body chamber 41 by water-reducing agent (or water-reducing agent and coagulant) investment in 2 left side of cabinet, by water
Liquid feedstock chamber 42 of the investment in 2 right side of cabinet.First motor 81 and the rotation of the second motor 84 are controlled, guarantees rotation outer cylinder 5
Accessibke porosity 52 straight up, rotate outer cylinder 5 inner via hole 62 straight down, make water-reducing agent (or water-reducing agent and coagulant)
With water enter rotation outer cylinder 5 in (detailed step is referring to step A).
D, only start the second motor 84, the second motor 84 drives rotation inner cylinder 6 to rotate, and rotation inner cylinder 6 is in rotation outer cylinder 5
In rotation process, the entrance rotation inner cylinder 6 of inner via hole 62 of water-reducing agent (or water-reducing agent and coagulant) and water through rotation inner cylinder 6
It is interior, and be thoroughly mixed in rotation inner cylinder 6.
E, the rotation of first motor 81 and the second motor 84 is controlled, the accessibke porosity 52 for guaranteeing rotation outer cylinder 5 straight down, turns
Straight down, the raw material mixed is discharged the inner via hole 62 of dynamic outer cylinder 5 through the discharge port 11 on pedestal 1.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although by referring to of the invention preferred
Invention has been described for embodiment, it should be appreciated by those of ordinary skill in the art that can in form and carefully
Various changes are made to it on section, without departing from the spirit and scope of the present invention defined by the appended claims.
Claims (10)
1. a kind of cement concrete repair materials according to claim 1, which is characterized in that including following raw material: rubble
1100-1300 parts, 600-700 parts of sand and 400-450 parts of healant.
2. a kind of cement concrete repair materials according to claim 1, which is characterized in that further include 4-5 parts of water-reducing agent
With 100-130 parts of water.
3. a kind of cement concrete repair materials according to claim 1 or 2, which is characterized in that further include retarder
0.4-0.5 parts.
4. a kind of cement concrete repair materials according to claim 1, which is characterized in that the fineness modulus of the sand is
3.7-3.1。
5. a kind of cement concrete repair materials according to claim 1, which is characterized in that the healant is repaired for CRM
Multiple agent.
6. a kind of preparation method of cement concrete repair materials according to claim 1, which is characterized in that including following
Step:
(1) it weighs: rubble 1100-1300 parts of weighing, 600-700 parts of sand and 400-450 parts of healant respectively；
(2) pre- stirring: rubble, sand and healant that step (1) obtains are put into blender and are stirred；
(3) secondary agitation: added into blender water be stirred mixing obtain this repair materials.
7. a kind of preparation method of cement concrete repair materials according to claim 6, which is characterized in that the step
(3) mixing time is 1-3min.
8. a kind of preparation method of cement concrete repair materials according to claim 6, which is characterized in that the step
It (3) further include that water-reducing agent is added into blender.
9. a kind of preparation method of cement concrete repair materials according to claim 8, which is characterized in that the step
(3) water being added in is 100-130 parts, water-reducing agent is 4-5 parts.
10. a kind of preparation method of cement concrete repair materials according to claim 6 or 9, which is characterized in that described
Step (3) further includes that retarder 0.4-0.5 parts is added into blender.
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| CN201910195133.1A CN109734370A (en) | 2019-03-14 | 2019-03-14 | A kind of cement concrete repair materials and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910195133.1A CN109734370A (en) | 2019-03-14 | 2019-03-14 | A kind of cement concrete repair materials and preparation method thereof |
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| CN107117912A (en) * | 2017-05-08 | 2017-09-01 | 北京工业大学 | Fiber concrete, preparation and application that a kind of airfield pavement is quickly repaired |
| CN107500690A (en) * | 2017-09-15 | 2017-12-22 | 广西交通科学研究院有限公司 | The quick concrete that is open to traffic of cement concrete pavement pit reparation |
| CN109133844A (en) * | 2018-10-17 | 2019-01-04 | 中国路桥工程有限责任公司 | A kind of Rapid Patching Material for PCC Airfield and preparation process |
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2019
- 2019-03-14 CN CN201910195133.1A patent/CN109734370A/en active Pending
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|---|---|---|---|---|
| CN102167550A (en) * | 2011-01-17 | 2011-08-31 | 交通运输部公路科学研究院 | Early-strength fast-track concrete for repairing cement-concrete road surface |
| CN104944872A (en) * | 2015-06-18 | 2015-09-30 | 关其焕 | Cement concrete pavement self-repair material and preparation method thereof |
| CN107117912A (en) * | 2017-05-08 | 2017-09-01 | 北京工业大学 | Fiber concrete, preparation and application that a kind of airfield pavement is quickly repaired |
| CN107500690A (en) * | 2017-09-15 | 2017-12-22 | 广西交通科学研究院有限公司 | The quick concrete that is open to traffic of cement concrete pavement pit reparation |
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Application publication date: 20190510 |