CN103145396B - Multifunctional quick repair material for cement concrete pavements and preparation method thereof - Google Patents

Multifunctional quick repair material for cement concrete pavements and preparation method thereof Download PDF

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Publication number
CN103145396B
CN103145396B CN201310060491.4A CN201310060491A CN103145396B CN 103145396 B CN103145396 B CN 103145396B CN 201310060491 A CN201310060491 A CN 201310060491A CN 103145396 B CN103145396 B CN 103145396B
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China
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cement
repair
cement concrete
water
magnesium oxide
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CN201310060491.4A
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Chinese (zh)
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CN103145396A (en
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曹勇
郭伟民
薛柏清
潘鹏
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上海建为建筑修缮工程有限公司
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Abstract

The invention relates to pavement repair, particularly a multifunctional quick repair material for cement concrete pavements, which is prepared by mixing the following raw materials in percentage by weight: 20-30% of magnesium oxide, 14-26% of ammonium monoacid phosphate, 9-14% of boric acid, 5-20% of aluminate cement, 2-10% of fly ash, 2-10% of rubber powder, 0.5-1.5% of polypropylene fiber, 0.5-1.5% of redispersible latex powder, silica sol and water; the silica sol accounts for 20-60% of the water. The preparation method of the multifunctional quick repair material for cement concrete pavements is implemented by proportionally mixing the raw materials. The material is convenient for construction, has enduring effect after curing, and has quick and enduring repair capacities for most damage forms of cement concrete pavements.

Description

Multi-functional fast repairing material of a kind of cement concrete pavement and preparation method thereof
Technical field
The present invention relates to pavement patching, be specifically related to a kind of material of pavement patching.
Background technology
The maintenance of road is one of important topic of facing of current field of road.According to statistics, in recent years, China every year for the funds of highway maintenance maintenance just more than 30,000,000,000 yuan, perfect gradually along with highway in China transportation network, the maintenance of highway more and more comes into one's own.Owing to having, intensity is high, supporting capacity is strong, applied widely, the feature such as abundant raw materials, good endurance, and cement concrete pavement occupies critical role in the construction of highway in China net always, is a kind of very important pavement structure form.But, under As-Is, cement concrete pavement does not often reach desired value work-ing life, a lot of entity project is open to traffic and still only has a few year, just there is crack, come to nothing, the disease such as disconnected plate, need to take grouting, rubblization disposed, change the technique means such as plate or outrigger location to recover its structural-load-carrying capacity or road table using function.In addition, traditional repair mode is not only long in time limit, large to Coherent traffic noise, costly, and the means of reparation are only effective for certain concrete disease form, and helpless when repairing other disease form.Therefore, develop can to repair fast for the various Major Diseases of cement concrete pavement and effect lasting patching material there is very important realistic meaning.
The patching material of cement concrete cracks is generally flexible materials, as polyvinyl chloride (PVC) cement, pitch, rubber etc.These materials only can reach the effect in shutoff crack, can not supporting crack two wall thus can not be jointly stressed with both sides road deck as a whole, so crack can be caused to spread during pressure when vehicle fracture two wall has and expand; In addition, because the contraction of these materials and cement concrete material, swelling property differ greatly, cause easily be extruded its summer, the material be extruded comes off from original place under the effect of wheel, and when cold weather concrete panel shrinks, crack place produces larger space thus seam sealer inefficacy; Further, because flexible patching material and cement concrete pavement colour contrast are large, on road surface, form black line after perfusion, comparatively seriously affect the use properties on road surface.
For the top layer class disease of cement concrete pavement, the traditional method of highway maintenance department adopts asphalt to carry out local route repair or overall cover to it, although it is comparatively easy to construct, but because the rigidity of bi-material is inconsistent, the existence of the shearing between interface easily causes coming off of patching material and lost efficacy.Another kind of traditional method for repairing and mending is removed by the concrete of breakage, again making is not less than the normal concrete of original design strength grade, mainly there is following problem in this repair mode: (1) novel concrete shrinks comparatively old concrete and shrinks large, easily causes shrinkage cracking; (2) between new-old concrete due to reasons such as boundary defects, its mutual cohesive strength is low, all easily cause repair lost efficacy; (3) curing cycle is long, brings larger pressure to traffic operation.
For the obvious defect of above-mentioned conventional repair material, in recent years, domesticly in succession develop various polymer concrete, polymer modification concrete, mix Fresh Concrete with Admixtures, the quick patching material for cement concrete pavement such as fibrous concrete and fast hard class cement, introduce the present Research of several patching material below respectively.
Polymer concrete, polymer modification concrete, fibrous concrete, mix the fast repairing material such as Fresh Concrete with Admixtures and fast hard class cement and be mainly applicable to plate and repair and cover is repaired, use range has significant limitation, and the usage quantitys such as polymkeric substance, fiber and admixture are comparatively large, price is more expensive again limit its development and use.
The above-mentioned description about Cement Concrete Pavement Reconstruction present condition of material shows, the existing various types of materials for Cement Concrete Pavement Maintenance and maintenance all exists respective defect and the restriction of use range.
Summary of the invention
The object of the present invention is to provide the multi-functional fast repairing material of a kind of cement concrete pavement, this patching material can be repaired for the most of disease form of cement concrete pavement.
The present invention also aims to the preparation method that above-mentioned patching material is provided, to solve the problems of the technologies described above.
Technical problem solved by the invention can realize by the following technical solutions:
The multi-functional fast repairing material of a kind of cement concrete pavement, it is characterized in that, containing magnesium oxide in the raw material of described patching material, Secondary ammonium phosphate, boric acid, aluminate cement, flyash, rubber powder, polypropylene fibre, redispersable latex powder, silicon sol, water, each raw material is by following weight ratio mixing: magnesium oxide 20%-30%, Secondary ammonium phosphate 14%-26%, boric acid 9%-14%, aluminate cement 5%-20%, flyash 2%-10%, rubber powder 2%-10%, polypropylene fibre 0.5%-1.5%, redispersable latex powder 0.5%-1.5%, silicon sol consumption is the 20%-60% of water consumption.
The construction of this material is convenient, effect is lasting after solidification, all has fast, permanent repair ability for the most of disease form of cement concrete pavement.
First magnesium oxide, Secondary ammonium phosphate, boric acid, aluminate cement, flyash, rubber powder, polypropylene fibre, redispersable latex powder, silicon sol can be made into gelling mixture according to the above ratio, the 20%-60% being water consumption by silicon sol consumption again during use is watered use.
Also containing sand in the raw material of described patching material, described sand is Machine-made Sand, natural fine sand or natural coarse sand, is mixed into by weight 33%-50%.
As a kind of preferred version, each raw material is by following weight ratio mixed preparing: the magnesium oxide of 6%, the Secondary ammonium phosphate of 22%, the boric acid of 12%, the aluminate cement of 10-20%, the flyash of 5-10%, the rubber powder of 3-10%, the polypropylene fibre of 1.5%, 1% redispersable latex powder, silicon sol consumption is 40% of water consumption.
The fast repairing material that this formula obtains can meet the demand of Rapid-Repair, good fluidity time of coagulation, is applicable to the fracture such as fracture class disease and carries out being in the milk and the vertical displacement class disease such as plat-bottom escape carries out mud jacking.
As another kind of preferred version, each raw material is by following weight ratio mixed preparing: the magnesium oxide of 30%, the Secondary ammonium phosphate of 26%, the boric acid of 14%, the aluminate cement of 15%, the flyash of 8%, the rubber powder of 5%, the polypropylene fibre of 1.5%, 1.5% redispersable latex powder, silicon sol consumption is 20% of water consumption.
The fast repairing material molding time that this formula obtains can meet the demand of Rapid-Repair, good fluidity, is applicable to the fracture such as fracture class disease and carries out being in the milk and the vertical displacement class disease such as plat-bottom escape carries out mud jacking.
As another kind of preferred version, each raw material is by following weight ratio mixed preparing: the Machine-made Sand of 33% or natural fine sand, the magnesium oxide of 20%, 17% Secondary ammonium phosphate, the boric acid of 10%, the aluminate cement of 10%, the flyash of 5%, the rubber powder of 3%, the polypropylene fibre of 1%, 1% redispersable latex powder, water-cement ratio is as the criterion can obtain better mobility, and silicon sol consumption is 40% of water consumption.
The fast repairing material that this formula obtains can meet the demand of Rapid-Repair time of coagulation, and mobility is better, is applicable to carry out the discrepancy in elevation to vertical displacement class diseases such as faulting of slab ends and fills up and repair surface layer class diseases such as holes, hole.
As another kind of preferred version, each raw material is by following weight ratio mixed preparing: the Machine-made Sand of 50% or natural coarse sand, the magnesium oxide of 17%, the Secondary ammonium phosphate of 14%, the boric acid of 9%, the aluminate cement of 5%, the flyash of 2%, the rubber powder of 2%, the polypropylene fibre of 0.5%, 0.5% redispersable latex powder, silicon sol consumption is 60% of water consumption.
The fast repairing material that this formula obtains can meet the demand of Rapid-Repair time of coagulation, and mobility is general, is applicable to carry out the discrepancy in elevation to vertical displacement class diseases such as faulting of slab ends and fills up and repair surface layer class diseases such as holes, hole and thin layer subsidizes.
The preparation method of the multi-functional fast repairing material of cement concrete pavement, it is characterized in that, by magnesium oxide, Secondary ammonium phosphate, boric acid, aluminate cement, flyash, rubber powder, polypropylene fibre, redispersable latex powder, silicon sol, water, mix by following weight ratio: magnesium oxide 20%-30%, Secondary ammonium phosphate 14%-26%, boric acid 9%-14%, aluminate cement 5%-20%, flyash 2%-10%, rubber powder 2%-10%, polypropylene fibre 0.5%-1.5%, redispersable latex powder 0.5%-1.5%, silicon sol consumption are the 20%-60% of water consumption.
First by magnesium oxide, Secondary ammonium phosphate, boric acid, aluminate cement, flyash, rubber powder, polypropylene fibre, redispersable latex powder, silicon sol mixing, can be watered again during use.
Also containing sand in the raw material of described patching material, described sand is Machine-made Sand, natural fine sand or natural coarse sand, and described sand mixes by weight 33%-50%.
The advantage of this product is:
1 time of coagulation is short, can reach the object of Rapid-Repair Cement Concrete Pavement, and energy is adjustable between 5 ~ 30min for its time of coagulation;
Cohesive strength between 2 and pavement concrete base material is high, and 1d cohesive strength can reach more than 4MPa;
3 early strengths are high, and the anti-folding of 1h and ultimate compression strength can reach 3MPa and 20MPa respectively;
4 good fluidities, its degree of mobilization can reach 200mm and more than;
5 good endurance, wear resistance, frost resistance, resisting carbonization can reach the requirement of Load materials;
6 its intensity, snappiness, mobility can regulate according to the demand of different pavement disease;
7 carry out health, natural curing in dry conditions without the need to adopting any special measures;
8 preparation technologies are simple.
Embodiment
The technique means realized to make the present invention, creation characteristic, reach object and effect is easy to understand, below in conjunction with elaborating the present invention.
The multi-functional fast repairing material of a kind of cement concrete pavement, containing magnesium oxide, Secondary ammonium phosphate, boric acid, aluminate cement, flyash, rubber powder, polypropylene fibre, redispersable latex powder, silicon sol, water in the raw material of patching material, each raw material mixes by following weight ratio: magnesium oxide 20%-30%, Secondary ammonium phosphate 14%-26%, boric acid 9%-14%, aluminate cement 5%-20%, flyash 2%-10%, rubber powder 2%-10%, polypropylene fibre 0.5%-1.5%, redispersable latex powder 0.5%-1.5%, silicon sol consumption are the 20%-60% of water consumption.
The construction of this material is convenient, effect is lasting after solidification, all has fast, permanent repair ability for the most of disease form of cement concrete pavement.
First magnesium oxide, Secondary ammonium phosphate, boric acid, aluminate cement, flyash, rubber powder, polypropylene fibre, redispersable latex powder, silicon sol can be made into gelling mixture according to the above ratio, the 20%-60% being water consumption by silicon sol consumption again during use is watered use.
Also containing sand in the raw material of patching material, sand is Machine-made Sand, natural fine sand or natural coarse sand, is mixed into by weight 33%-50%.
The formula of this product and using function depend on the disease form in region to be repaired, as needed the fracture class diseases such as the crack of applying pressure slip casting or the grouting of expansion seam, need boring to carrying out the purt mud of slip casting, the seam class disease such as to come to nothing at the bottom of plate, to need the panel such as depression, faulting of slab ends produce the vertical displacement class disease that the discrepancy in elevation fills up, need the top layer class disease that hole, hole, undisguised etc. is repaired.
Following embodiment further illustrates of the present invention, instead of limit the scope of the invention.
Example 1
The multi-functional fast repairing material of cement concrete pavement is formed by the material formulation of following weight ratio: the magnesium oxide of 26%, the Secondary ammonium phosphate of 22%, the boric acid of 12%, the aluminate cement of 10-20%, the flyash of 5-10%, the rubber powder of 3-10%, the polypropylene fibre of 1.5%, 1% redispersable latex powder, water-cement ratio is 0.25, and silicon sol replaces water consumption with 40%.The fast repairing material that this formula obtains can meet the demand of Rapid-Repair, good fluidity time of coagulation, is applicable to the fracture such as fracture class disease and carries out being in the milk and the vertical displacement class disease such as plat-bottom escape carries out mud jacking.
Constructional method is as follows: cleaned out by the pollutent that the dust in disease region, earth and greasy dirt etc. may affect interface binding intensity between patching material and disease region to be repaired; To have and to loosen and broken concrete blocks is removed, and crack narrower for width or the more shallow hole, surface layer hole of the degree of depth be carried out widen or cut a hole dark, by the water-wet of region to be repaired cleaning; Because the condensation of this product, setting rate are very fast, therefore mixing machinery need be placed in apart within the scope of region 5m to be repaired, this product job mix, onsite application, and duration of mixing is no more than 2min; This product is after disease region to be repaired uses, and need to be undertaken flattening, wiping one's face to meeting cement concrete pavement road and show service requirements by artificial trowel as early as possible, this operation should control at 5 ~ 10min; This product often stirs once, goes out after machine until product, need clean Mixing Machine immediately.
Example 2
The multi-functional fast repairing material of cement concrete pavement is formed by the material formulation of following weight ratio: the magnesium oxide of 30%, the Secondary ammonium phosphate of 26%, the boric acid of 14%, the aluminate cement of 15%, the flyash of 8%, the rubber powder of 5%, the polypropylene fibre of 1.5%, 1.5% redispersable latex powder, water-cement ratio is 0.28, and silicon sol replaces water consumption with 20%.The fast repairing material molding time that this formula obtains can meet the demand of Rapid-Repair, good fluidity, is applicable to the fracture such as fracture class disease and carries out being in the milk and the vertical displacement class disease such as plat-bottom escape carries out mud jacking.Constructional method is with reference to example 1.
Example 3
The multi-functional fast repairing material of cement concrete pavement is formed by the material formulation of following weight ratio: the Machine-made Sand of 33% or natural fine sand, the magnesium oxide of 20%, 17% Secondary ammonium phosphate, the boric acid of 10%, the aluminate cement of 10%, the flyash of 5%, the rubber powder of 3%, the polypropylene fibre of 1%, 1% redispersable latex powder, water-cement ratio is as the criterion can obtain better mobility, and silicon sol consumption is 40% of water consumption.The fast repairing material that this formula obtains can meet the demand of Rapid-Repair time of coagulation, and mobility is better, is applicable to carry out the discrepancy in elevation to vertical displacement class diseases such as faulting of slab ends and fills up and repair surface layer class diseases such as holes, hole.Constructional method is with reference to example 1.
Example 4
The multi-functional fast repairing material of cement concrete pavement is formed by the material formulation of following weight ratio: the Machine-made Sand of 50% or natural coarse sand, the magnesium oxide of 17%, the Secondary ammonium phosphate of 14%, the boric acid of 9%, the aluminate cement of 5%, the flyash of 2%, the rubber powder of 2%, the polypropylene fibre of 0.5%, 0.5% redispersable latex powder, water-cement ratio is as the criterion can reach better mobility, and silicon sol consumption is 60% of water consumption; Constructional method is with reference to example 1.The fast repairing material that this formula obtains can meet the demand of Rapid-Repair time of coagulation, and mobility is general, is applicable to carry out the discrepancy in elevation to vertical displacement class diseases such as faulting of slab ends and fills up and repair surface layer class diseases such as holes, hole and thin layer subsidizes.Constructional method is with reference to example 1.
To the analysis of the multi-functional fast repairing material performance of cement concrete pavement, should emphatically from the viewpoint of folding strength, time of coagulation, divergence etc.Above-described embodiment performance is as shown in the table.
The preparation method of the multi-functional fast repairing material of cement concrete pavement, it is characterized in that, by magnesium oxide, Secondary ammonium phosphate, boric acid, aluminate cement, flyash, rubber powder, polypropylene fibre, redispersable latex powder, silicon sol, water, mix by following weight ratio: magnesium oxide 20%-30%, Secondary ammonium phosphate 14%-26%, boric acid 9%-14%, aluminate cement 5%-20%, flyash 2%-10%, rubber powder 2%-10%, polypropylene fibre 0.5%-1.5%, redispersable latex powder 0.5%-1.5%, silicon sol consumption are the 20%-60% of water consumption.
First by magnesium oxide, Secondary ammonium phosphate, boric acid, aluminate cement, flyash, rubber powder, polypropylene fibre, redispersable latex powder, silicon sol mixing, the water of institute's expense during use, can be added again in certain proportion.
Also containing sand in the raw material of described patching material, described sand is Machine-made Sand, natural fine sand or natural coarse sand, and described sand mixes by weight 33%-50%.
Magnesium oxide is preferably and is formed by magnesite reheating.Flyash is preferably I grade of ash or II grade of ash, about I grade of ash or II grade of grey technical requirements during concrete technical requirement meets " flyash (GBT1596-2005) in cement and concrete ".The consumption of water is according to different mobility and requirement of strength, and " water " is for meeting the clean water of " JGJ63-2006 the reinforcement of concrete water quality standard ".
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (1)

1. the multi-functional fast repairing material of cement concrete pavement, it is characterized in that, containing magnesium oxide in the raw material of described patching material, Secondary ammonium phosphate, boric acid, aluminate cement, flyash, rubber powder, polypropylene fibre, redispersable latex powder, silicon sol, water, each raw material is by following weight ratio mixing: the magnesium oxide of 26%, the Secondary ammonium phosphate of 22%, the boric acid of 12%, the aluminate cement of 10-20%, the flyash of 5-10%, the rubber powder of 3-10%, the polypropylene fibre of 1.5%, 1% redispersable latex powder, water-cement ratio is 0.25, silicon sol replaces water consumption with 40%.
CN201310060491.4A 2013-02-26 2013-02-26 Multifunctional quick repair material for cement concrete pavements and preparation method thereof CN103145396B (en)

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CN103360001B (en) * 2013-07-10 2015-08-26 中交公路养护工程技术有限公司 The complete thick formula repairing high-early-strength type concrete of cement concrete pavement
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CN106007597A (en) * 2016-05-25 2016-10-12 贵州省交通规划勘察设计研究院股份有限公司 Material for quickly repairing semi-rigid base of asphalt pavement and preparation method thereof
CN106517911A (en) * 2016-11-10 2017-03-22 过冬 Cement-based repairing material
CN106747133B (en) * 2016-11-28 2019-02-01 郑州筑邦建材有限公司 A kind of severe cold area high-speed rail pedestal concrete low temperature patching material and its application
CN106917333B (en) * 2017-03-15 2019-01-22 张启志 A kind of traceless repair method of concrete road
CN106966687B (en) * 2017-04-07 2020-07-24 俞家欢 Fluidity-free rapid-setting strong-binding-force phosphate cement repairing material and preparation method thereof
CN107445503B (en) * 2017-09-13 2020-09-04 贵州磷镁材料有限公司 Antifreezing slow-setting calcium phosphate silicon magnesium cement and preparation method thereof
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
CN110550910A (en) * 2019-09-24 2019-12-10 中交武汉港湾工程设计研究院有限公司 roller compacted concrete applied to rapid repair of pavement base and preparation method thereof

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